Tag: FMCG manufacturing

  • Root Cause Analysis: Using the 5 Whys and Fishbone Diagram on a Line Stoppage

    Root Cause Analysis: Using the 5 Whys and Fishbone Diagram on a Line Stoppage

    The Fault That Keeps Coming Back

    Every plant has one. A fault that stops the line, gets fixed, and returns a week later. Each time it is repaired promptly and each time the repair is logged as successful. Over a year it costs more production than any single major breakdown, and nobody has ever sat down to find out why it happens.

    Root cause analysis is the discipline of asking that question properly. This guide covers the two most widely used techniques, the 5 Whys and the fishbone diagram, with a worked example from a filling line, and explains how to make the findings stick.

    What Root Cause Analysis Is

    Root cause analysis is a structured way of working back from a problem to the underlying reason it occurred, so that the fix prevents it recurring. It rests on a distinction between three things.

    The symptom is what you see: the filler stopped on a low level alarm.

    The direct cause is the immediate technical reason: a valve was slow to open.

    The root cause is the reason the direct cause was able to happen: usually a gap in a system, such as maintenance, design, training or documentation.

    Repairs address direct causes. Root cause analysis addresses the gap. If you stop at the direct cause you will be back.

    The 5 Whys

    The 5 Whys is the simplest technique and the one most plants should start with. It came out of the Toyota production system. You state the problem and ask why it happened. You take the answer and ask why again, and continue until you reach a cause that, if corrected, would prevent the problem.

    Five is a guide and not a rule. Some problems resolve in three steps and some take seven. The signal that you have gone far enough is that the answer describes something the organisation controls and can change.

    A Worked Example From a Filling Line

    A can filler has stopped on a low bowl level fault eleven times in a month. Each stop lasted between ten and forty minutes. Each time, maintenance reset the fault and the line restarted.

    Why did the filler stop? The product level in the bowl fell below the minimum.

    Why did the level fall? The product supply valve was slow to open when the level control called for it.

    Why was the valve slow? Its pneumatic actuator was not getting enough air.

    Why was it short of air? A filter on the air line to that valve was partly blocked.

    Why was the filter blocked? It had never been changed. It was added during a modification three years earlier and was never put on the maintenance schedule or shown on the drawings.

    The direct cause is a blocked filter, fixed in ten minutes. The root cause is that modifications to the line were not being captured in the drawings and the maintenance system. Fixing that prevents this fault and an unknown number of others. The obvious next question is what else was added in that modification.

    Where the 5 Whys Falls Short

    The technique follows a single chain of cause and effect. Real problems often have several contributing causes, and a 5 Whys done by one person tends to follow whichever path that person already suspected. It can also stop too early, at an answer like operator error, which is almost never a root cause. If a person made a mistake, ask why the system made that mistake easy.

    For problems with more than one plausible cause, a wider tool is needed first.

    Fishbone Diagram

    The Fishbone Diagram

    The fishbone diagram, also called an Ishikawa diagram after the Japanese engineer Kaoru Ishikawa, or a cause and effect diagram, is a way of laying out all the possible causes of a problem before deciding which to pursue. The problem is written at the head of the fish. Bones branch off for each category of cause, and the team adds possible causes under each.

    In manufacturing the usual categories are six.

    People. Training, experience, fatigue, staffing, handover between shifts.

    Machine. Wear, settings, maintenance condition, design limitations, modifications.

    Method. Procedures, changeover practice, cleaning routines, work instructions.

    Material. Product, packaging, suppliers, batch variation.

    Measurement. Sensors, calibration, inspection methods, the data itself.

    Environment. Temperature, humidity, washdown, dust, lighting.

    The value is breadth. A team that is convinced a fault is electrical will, when made to fill in the material bone, remember that the problem started when the label supplier changed.

    Using the Two Together

    The techniques complement each other. Use a fishbone to open the question up and collect every credible cause. Use evidence to rule causes in or out, since most can be eliminated quickly with data you already hold. Then run a 5 Whys on each cause that survives.

    For the filler example, a fishbone might have raised air supply, valve wear, level sensor drift, a change in product viscosity and a control setting altered after a software change. Checking the air pressure at the valve would have pointed to the first within the hour.

    Running a Session That Works

    Pick the right problems. Root cause analysis takes time. Reserve it for faults that are expensive, repeated or dangerous. A simple trigger works well: any fault that occurs three times, any stop over a set duration and any safety incident.

    Get the right people. The operator who saw it, the tradesperson who fixed it and someone who understands the control system. Three or four people is enough.

    Go and look. Hold the session at the machine where possible. Assumptions made in a meeting room are often wrong.

    Use evidence. Alarm histories, drive fault logs, trends, maintenance records and the failed part itself. Every why should be supported by something you can point to.

    Keep blame out of it. People stop telling the truth when the exercise is about fault. The question is always what allowed this, never who did it.

    Write it down. One page: the problem, the chain of causes, the evidence, the actions, an owner and a date for each.

    From Cause to Corrective Action

    An analysis is only as good as the action that follows. Weak actions are reminders, retraining and instructions to be more careful. Strong actions change the system: a design change that removes the failure, a maintenance task added with a frequency, a drawing corrected, a spare part stocked, a setting locked.

    Then check that it worked. Set a date to review whether the fault has recurred. If it has, the root cause was not found and the analysis should be reopened without embarrassment. That is how the method is supposed to work.

    Common Root Causes in Production Plants

    Across many investigations the same themes recur. Modifications that were never documented. Maintenance tasks that exist on paper and are skipped under production pressure. Settings changed to work around a problem and never restored. Spare parts that are near enough but not identical. Sensors positioned where washdown or product build up defeats them. Knowledge held by one person and lost when they changed shift or left.

    None of these is exotic. That is the encouraging part: most root causes are within a plant’s power to fix.

    Where BevTech Fits

    BevTech is a family owned engineering business in Richlands, Brisbane, with more than 25 years in beverage and FMCG manufacturing. Our industrial electricians, automation engineers and mechanical trades are often called to the faults that keep coming back, and because all three disciplines and a machine shop sit in the same business, we can follow a cause wherever it leads, from a line of PLC logic to a worn change part. We also produce the as-built drawings and documentation that stop undocumented modifications becoming next year’s mystery.

    If your plant has a recurring fault that nobody has had time to get to the bottom of, use the contact form at bevtech.com.au/contact.

  • Pareto Charts for Downtime: Finding the Few Causes That Cost the Most

    Pareto Charts for Downtime: Finding the Few Causes That Cost the Most

    You Cannot Fix Everything at Once

    A production line stops for dozens of reasons. A plant that tries to work on all of them makes little progress on any. A plant that works on the loudest one, usually whatever went wrong yesterday, makes progress on the wrong thing. The Pareto chart is a simple tool for finding the few causes that account for most of the loss, so that limited engineering and maintenance time goes where it will return the most.

    This guide explains what a Pareto chart is, how to build one from the downtime data you already have, how to read it and the mistakes that make it misleading.

    What a Pareto Chart Is

    A Pareto chart is a bar chart in which the categories are sorted from largest to smallest, with a line added to show the running cumulative percentage. The bars show how much each cause contributes. The line shows how quickly the causes add up to the total.

    It is named after the Italian economist Vilfredo Pareto, who observed that a large share of wealth was held by a small share of the population. The quality pioneer Joseph Juran later applied the idea to manufacturing problems and described the vital few and the trivial many. The popular shorthand is the 80/20 rule: roughly 80 per cent of the effect comes from roughly 20 per cent of the causes. The ratio is not a law. The pattern, a steep drop from a few large causes to a long tail of small ones, turns up in most downtime data.

    Building One for Downtime

    Step one: collect the data. You need a list of stoppages over a period, each with a cause and a duration. A month of data is usually enough to start. It can come from a line monitoring system, a maintenance system or a shift log filled in by hand.

    Step two: group by cause. Give each stoppage a category. Use specific categories. Labeller jam is useful. Mechanical fault is not.

    Step three: total each category. Add up the minutes lost for each cause.

    Step four: sort. Put the largest first.

    Step five: calculate cumulative percentages. For each cause, work out its share of the total and add it to the shares above it.

    Step six: draw it. Bars for the minutes, a line for the cumulative percentage. Any spreadsheet will do this.

    A Worked Example

    A canning line lost 2,000 minutes to unplanned stops in a month. Sorted by cause, the losses were as follows.

    Labeller jams: 620 minutes, which is 31 per cent of the total. Filler valve faults: 480 minutes, 24 per cent, bringing the cumulative figure to 55 per cent. Changeover overruns: 410 minutes, 20.5 per cent, cumulative 75.5 per cent. Conveyor sensor faults: 190 minutes, 9.5 per cent, cumulative 85 per cent. Capper torque faults: 120 minutes, 6 per cent, cumulative 91 per cent. Palletiser faults: 90 minutes, 4.5 per cent, cumulative 95.5 per cent. All other causes: 90 minutes, 4.5 per cent.

    Three causes account for just over three quarters of the lost time. If the plant could halve only those three, it would recover 755 minutes a month, more than it would gain by eliminating every other cause on the list entirely.

    That is the message of a Pareto chart. The capper and the palletiser may be the faults people complain about, but they are not where the hours are.

    Count Stops as Well as Minutes

    A chart of minutes tells you where the time went. A chart of the number of stops can tell a different story, and it is worth building both.

    In the same month, suppose the conveyor sensor faults occurred 140 times, at a little over a minute each, while the filler valve faults occurred 12 times at 40 minutes each. By duration the valve is the bigger problem. By frequency the sensor is, and frequent short stops do damage that minutes alone do not show. They break the line’s rhythm, cause product to back up, wear on operators and are often under recorded because each one seems too small to log.

    The two charts point to different kinds of fix. Long, infrequent stops usually call for better parts, better spares holding or faster diagnosis. Short, frequent stops usually call for an engineering change at the source.

    Drill Down

    The first chart tells you where to look. It rarely tells you what to do. The next step is to take the largest bar and build a second Pareto inside it.

    Labeller jams at 620 minutes is a category, not a cause. Break it down by label type, by product, by shift or by which station on the machine jammed. You may find that most of the jams occur on one label size, or in the first hour after a changeover, or on one supplier’s reels. Each level narrows the problem until it is specific enough for root cause analysis. A Pareto chart selects the problem. Techniques such as the 5 Whys and the fishbone diagram then find the cause.

    Six Mistakes That Mislead

    A large other category. If other or unknown is one of your biggest bars, the data is not yet good enough to act on. Fix the recording first.

    Categories that are too broad. Electrical, mechanical and operator are departments, not causes. They start arguments and identify nothing.

    Mixing planned and unplanned time. Changeovers and cleaning are planned. Keep them separate from breakdowns, or count only the overrun beyond the planned time, as in the example above.

    Too short a period. One bad day can dominate a week of data. Use long enough to smooth out the exceptional event, or note it.

    Measuring only time. Some stoppages cost far more than their duration suggests because they scrap product or force a clean. Where that matters, build the chart on cost.

    Making the chart and stopping. A Pareto on the wall that never changes is decoration. Its value is in choosing a problem, fixing it and redrawing the chart.

    Getting Reliable Data

    The chart is only as good as what goes into it. Manual logs tend to capture the long stops and miss the short ones, and the cause recorded is often the operator’s best guess. That is still enough to start. As the plant matures, automatic capture of stop times from the line’s control system removes the guesswork about duration, leaving operators to select a reason from a short list.

    Keep the reason list short and specific, review it every few months, and add a category whenever other starts to grow.

    Using It Month After Month

    Review the chart with production and maintenance together. Choose the top one or two causes and assign each an owner. Investigate, fix and record what was done. Redraw the chart the following month. If the fix worked, the bar shrinks, a different cause moves to the top and the process repeats. Over a year this routine does more for line performance than most capital projects.

    Where BevTech Fits

    BevTech is a family owned engineering business in Richlands, Brisbane, with more than 25 years in beverage and FMCG manufacturing. Plants usually call us once the chart has shown them where the hours are going and the fix needs engineering: a control change to stop a recurring fault, a machined part to end a jam, a sensor relocated out of the washdown, or a line integration that stops product backing up. Our industrial electricians, automation engineers, mechanical trades and machine shop work as one team on Allen Bradley and Siemens controlled lines.

    If your top downtime cause has been the same for too long, use the contact form at bevtech.com.au/contact.

  • Total Productive Maintenance: A Plant Manager’s Guide to TPM

    Total Productive Maintenance: A Plant Manager’s Guide to TPM

    Maintenance Is Not Only the Maintenance Department’s Job

    In most plants, operators run machines and maintenance fixes them. When something breaks, production waits for a tradesperson. When nothing is broken, maintenance works through a schedule and operators have little to do with the condition of the equipment in front of them. Total productive maintenance starts from the view that this division is the main reason equipment performs below its potential.

    This guide explains what total productive maintenance is, the ideas that hold it together, what it asks of operators and tradespeople, and how to begin without launching a programme that fades in six months.

    What Total Productive Maintenance Is

    Total productive maintenance, usually shortened to TPM, is an approach to equipment management that aims to maximise the effectiveness of plant by involving everyone who works with it. It was developed in Japan in the 1960s and 1970s, with the car component maker Nippondenso generally credited as the first to apply it across a company, and it was set out for a wider audience by Seiichi Nakajima of the Japan Institute of Plant Maintenance.

    Each word in the name does some work. Total means everyone, from operators to managers. Productive means the aim is output, not maintenance activity for its own sake. Maintenance means keeping equipment in the condition it was designed to be in, and improving on it.

    The Six Big Losses

    TPM begins by naming what equipment loses. The six big losses are grouped under three headings.

    Availability losses. Breakdowns, and time spent on setup and adjustment, including changeovers.

    Performance losses. Small stops and idling, where the machine halts briefly and restarts, and reduced speed, where it runs slower than it was designed to.

    Quality losses. Defects and rework during steady production, and losses at startup before the process settles.

    The value of the list is that it makes hidden losses visible. Breakdowns are logged and discussed. A filler that has been run ten per cent below design speed for three years, because it jams if pushed, is rarely recorded as a loss at all.

    How TPM Connects to OEE

    Overall equipment effectiveness is the measure TPM uses to keep score. It multiplies three ratios that correspond to the three groups of losses: availability, performance and quality.

    The figure often quoted as world class is about 85 per cent. It comes from multiplying 90 per cent availability by 95 per cent performance and 99 per cent quality, which gives 84.6 per cent. Treat it as a reference point and not a target. A line with frequent changeovers and many product formats will sit well below a line that runs one product all week, and both can be well managed. The useful comparison is a line against its own history.

    The Eight Pillars

    TPM is usually described as eight pillars resting on a foundation of workplace organisation.

    Autonomous maintenance. Operators take on routine care of their equipment: cleaning, inspection, lubrication and minor adjustments.

    Focused improvement. Small cross functional teams work on specific losses, one at a time.

    Planned maintenance. Maintenance is scheduled on the basis of condition and history, so that it happens before failure.

    Quality maintenance. Equipment conditions that cause defects are identified and controlled, so that quality is built in and not inspected in.

    Early equipment management. What has been learned from running and maintaining existing plant is fed into the design and purchase of new plant.

    Training and education. Operators and tradespeople are given the skills the other pillars require.

    Safety, health and environment. Improvements must not introduce risk, and a well maintained plant is a safer one.

    TPM in administration. The same thinking is applied to planning, purchasing and other support functions that affect the floor.

    No plant needs to start with all eight. Most begin with the first three.

    Autonomous Maintenance in Practice

    Autonomous maintenance is the pillar that most changes daily life on the floor, and the one most often misunderstood. It does not mean turning operators into fitters, and it does not mean handing maintenance work to production to save money.

    It starts with cleaning, and the phrase used in TPM is that cleaning is inspection. An operator who wipes down a machine at the end of a shift sees the oil weep, the loose guard, the frayed cable and the sensor bracket that has moved. Those observations are tagged and recorded. Simple ones the operator fixes. The rest go to maintenance.

    From there the work progresses in stages. Sources of contamination are removed and hard to reach areas are made accessible. Standards for cleaning, inspection and lubrication are written by the people who will follow them. Operators are trained to understand how their machine works and what normal looks like. Over time, routine checks move from maintenance to the operator, and tradespeople are freed for work that needs their skills.

    What Changes for the Maintenance Team

    TPM is sometimes resisted by tradespeople who see it as a threat. In practice it moves them up the value chain. With operators handling routine care and early detection, maintenance spends less time on callouts and more on planned work, condition monitoring, root cause analysis and equipment improvement.

    It also raises the standard expected. When operators raise fifty defect tags in a month, maintenance has to deal with them. A backlog of tags that nobody acts on is the fastest way to end operator involvement.

    Why TPM Programmes Fail

    It is launched as a campaign. Posters and a kickoff event, then nothing changes in how time is allocated.

    No time is given. Operators cannot clean and inspect if the line is never stopped for it. If ten minutes a shift is not protected, autonomous maintenance does not exist.

    Tags are not closed. Operators report defects and see no response.

    It is run by one department. TPM owned only by maintenance, or only by a continuous improvement team, misses the point of the first word.

    The equipment is too far gone. A machine with years of accumulated defects has to be restored to a sound base condition before operators can be asked to keep it there.

    Measures are used to judge and not to learn. If OEE becomes a stick, the data stops being honest.

    How to Start Small

    Choose one line or one machine, preferably one that matters and has a willing team. Measure its losses for a few weeks to establish a baseline. Stop it for a day and carry out an initial clean with operators, tradespeople and supervisors working together, tagging every defect found. Fix the defects, starting with safety and with the ones causing losses. Write simple cleaning and inspection standards with the operators. Protect a short period each shift to carry them out. Review the tags and the numbers every week.

    Run this for three months, show the result and then move to the next machine. A plant that restores and sustains one line has learned more than one that announces TPM everywhere.

    The Role of Outside Engineering Support

    The initial clean on a neglected machine typically produces a long list of defects, and many are beyond what an in-house team can clear alongside normal work: worn parts with long lead times, guards that need remaking, sensors in the wrong place, sources of leakage that need a design change. Getting through that list quickly matters, because the momentum of a pilot depends on people seeing their tags acted on.

    Industrial electrician shift cover in Brisbane.

    Where BevTech Fits

    BevTech is a family owned engineering business in Richlands, Brisbane, with more than 25 years in beverage and FMCG manufacturing. Plants running improvement programmes use us to clear the engineering backlog those programmes uncover: machining replacement and redesigned parts in our own workshop, fabricating guards and covers, relocating sensors, correcting control faults on Allen Bradley and Siemens systems and restoring machines to base condition during planned stops and shutdowns. Our free FMCG and Beverage Plant Shutdown Planning Checklist, available on our website, is a useful companion for planning restoration work.

    If your improvement team has a list of defects that is growing faster than it is closing, use the contact form at bevtech.com.au/contact.

  • Industrial Electrician: What They Do and How to Engage One for Your Plant

    Industrial Electrician: What They Do and How to Engage One for Your Plant

    The Trade Your Production Line Depends On

    Most plant managers only think hard about industrial electricians at two moments: when a line is down and nobody on site can find the fault, and when a new machine arrives and somebody has to connect it. In between, the electrical side of a plant tends to run on habit and on whoever answered the phone last time.

    That is a missed opportunity. An industrial electrician who knows your site is one of the cheapest forms of downtime insurance a manufacturer can buy. This guide explains what an industrial electrician actually does in a manufacturing plant, the ways you can engage one, what to ask before you do and what you should have in your hand when the job is finished.

    What an Industrial Electrician Does

    An industrial electrician holds the same Queensland electrical work licence as the electrician who wires a house. The difference is in what they have spent their career working on. In a food, beverage or FMCG plant the work falls into a handful of areas.

    Power distribution. Main switchboards, motor control centres, distribution boards, sub mains and the cable systems that carry three phase power to every machine on the floor.

    Motors and drives. Starters, soft starters and variable speed drives for conveyors, pumps, fans, compressors and mixers, along with the protection that stops a motor destroying itself.

    Control systems. PLCs, HMIs, sensors, valves and field wiring. On most modern lines a fault that looks mechanical turns out to be a sensor, a cable or a line of logic.

    Machine safety. Guard interlocks, light curtains, safety relays and emergency stop circuits, which must work every time and must be proven to work after any change.

    Installation and commissioning. Bringing new and relocated machines into service, from the cable tray to the first good product off the line.

    What ties these together is the environment. Industrial electricians work around moving machinery, washdown areas, food safety rules and a production schedule that does not stop because someone needs a panel open.

    When You Need One, and When You Do Not

    A commercial electrician is a perfectly good choice for office lighting, power points in the warehouse, data cabling and the amenities block. You need an industrial electrician when the work touches production equipment, three phase motor circuits, control panels, safety systems or anything connected to a PLC. A useful test is consequence. If a mistake would stop a line, damage a machine or put someone at risk from moving plant, the job needs industrial experience.

    Five Ways to Engage an Industrial Electrician

    Breakdown callout. You ring when something fails. It is the most common arrangement and the most expensive per hour of value, because the electrician arrives knowing nothing about your site.

    Scheduled maintenance. Regular visits to inspect, test and repair to a plan. Faults are found on your timetable and the electrician builds knowledge of the plant.

    Shift cover. An electrician rostered on your site during production hours, or on call for it. Plants that run around the clock use this to guarantee that someone who knows the line is always within reach.

    Project work. A quoted scope for an installation, an upgrade or a line modification, usually with design drawings and commissioning included.

    Shutdown crews. A larger team for a fixed window, working through a list that has been planned for months.

    Most plants end up with a mix. The pattern that works is to give one provider enough routine work that they know the site before the breakdown call comes.

    Checks to Make Before Anyone Starts

    In Queensland a business that performs electrical work for others must hold an electrical contractor licence. This is separate from the licence held by the individual electrician. Contractor licences are issued for one year at a time, so one that was current at the last job may not be current now. The Electrical Safety Office provides a public search where you can check any contractor or worker licence in a couple of minutes.

    The regulation also requires contractors to hold insurance with a limit of indemnity of at least $5,000,000. Ask for the certificate of currency. For a manufacturing site you will usually want to see it anyway as part of contractor induction.

    Ten Questions Worth Asking

    The licence tells you a business is allowed to do the work. These questions tell you whether it can do yours.

    Which PLC platforms do your electricians work on, and can they go online with ours? Have you worked in food or beverage plants, and what do you do differently in a hygiene area? What is your response time after hours, and who answers the phone? Will the same people come each time? Do you provide design drawings and update our existing ones? How do you handle fault finding on energised equipment? Who validates a safety circuit after you change it? What do you leave behind when a job is finished? Can you support the mechanical side of a job, or will we need a second contractor? And who do we call if the person we normally deal with is on leave?

    The answers that matter most are the specific ones. A provider that names the software, describes its isolation procedure and shows you a sample handover pack is a safer choice than one that says it can do everything.

    What You Should Receive When the Job Is Done

    Queensland law requires a licensed electrical contractor to give the person the work was done for a certificate once it is complete. For work on an electrical installation it is a certificate of testing and compliance. For work on electrical equipment it is a certificate of testing and safety. Each records what was tested, the date and the contractor’s licence number.

    A good industrial electrician goes further. Expect updated drawings where circuits have changed, a backup of any PLC or HMI program that was modified, test results for safety functions and a short note on anything they saw that will need attention soon. That last item is often the most valuable thing on the page.

    Working on Live Equipment

    One point surprises some plant managers. In Queensland, electrical work on or near energised equipment is generally prohibited, and near means within 3 metres of an exposed energised part. There are narrow exceptions, including testing and situations where there is no reasonable alternative, and they come with conditions such as a risk assessment and a safe work method statement.

    In practice this means a competent industrial electrician will ask to isolate equipment that you would prefer to keep running. Production pressure is not one of the exceptions. An electrician who insists on isolation is protecting your people and your business, and one who never asks should worry you.

    Why Site Knowledge Is Worth Paying For

    The first hour of most breakdowns is spent learning the machine: finding the drawings, working out which panel feeds what, discovering that the labels are wrong. An electrician who has been through your plant before skips that hour. Over a year of breakdowns the saving is far larger than the cost of the routine visits that built the knowledge.

    Industrial Electricians for Brisbane Manufacturers

    BevTech is a family owned engineering business in Richlands with more than 25 years in beverage and FMCG manufacturing. Our industrial electricians work across Brisbane and South East Queensland on fillers, seamers, cappers, labellers, conveyors, motor control centres, refrigeration and CIP systems, on both Allen Bradley and Siemens platforms. We provide 24/7 shift coverage and breakdown support, and we take projects from design drawings through installation, testing and handover.

    Because our automation engineers, TUV certified functional safety engineers, mechanical trades and machine shop are in the same business, a job that turns out to need a machined part or a safety assessment does not need a second contractor. If you would like to talk through how your plant is covered, use the contact form at bevtech.com.au/contact.

    This article is a general guide current as at October 2026. Confirm licensing and safety requirements for your own site with the Electrical Safety Office.

  • Electrical Fault Finding on Production Lines: A Method That Shortens Downtime

    Electrical Fault Finding on Production Lines: A Method That Shortens Downtime

    Why Some Breakdowns Take Twenty Minutes and Others Take a Shift

    Two production lines stop with the same symptom. On one, the electrician has the line running again in twenty minutes. On the other, six hours and four replaced components later, the fault is still there. The difference is rarely luck and rarely the size of the toolbox. It is method, and it is how well the plant has prepared for the day something fails.

    This guide describes how experienced industrial electricians approach electrical fault finding on production equipment, what the rules in Queensland say about testing live equipment, and what a plant can do in advance to make every fault faster to find.

    Step One: Understand the Symptom

    Good fault finding starts with questions, not a multimeter. What exactly stopped? What was the machine doing at the time? Was there an alarm, and what did it say? Has it happened before, and when? What changed recently: a product changeover, a washdown, a repair, a software edit?

    The operator who was standing there usually holds half the answer. An electrician who walks past the operator to open a panel has already lost time. The most useful habit a plant can build is to have operators write down the alarm text and the time before anyone presses reset.

    Step Two: Read What the Machine Is Telling You

    Modern equipment is generous with information. The HMI alarm history shows what tripped and in what order. Variable speed drives store fault codes with the conditions at the moment of the trip. Safety relays and safety controllers show which channel opened. The PLC itself shows the live state of every input and output.

    The first alarm in the sequence is usually the one that matters. The dozen that follow are consequences. An electrician who can go online with the controller can see in seconds which condition is preventing the machine from running, where an electrician without the software can only guess.

    Step Three: Narrow It Down Logically

    Every control circuit is a chain: a sensor, a cable, an input, logic, an output, a cable and a device. The fault is somewhere in that chain. The efficient approach is to test at the midpoint and discard the half that is working, then repeat. Three or four well chosen tests will isolate a fault that could take thirty random ones.

    Start with the simple and likely causes. Sensors that have been knocked out of position, connectors loosened by vibration, cables damaged where they flex, water in a junction box after washdown and blown fuses account for a large share of production faults. Failed PLC hardware is far less common than people assume.

    Step Four: Prove It Before You Replace It

    Swapping parts until the fault disappears is the most expensive form of fault finding. It consumes spares, it can introduce new faults, and when the machine finally runs nobody knows which change fixed it. Worse, a part that was not faulty goes back on the shelf marked as suspect.

    The discipline is to form a theory, test it, and only then replace the component. If a new sensor fixes the problem, find out why the old one failed. A sensor destroyed by a misaligned guide rail will be destroyed again next week.

    Intermittent Faults

    The hardest faults are the ones that are not present when the electrician arrives. They demand patience and evidence. Useful techniques include trending the suspect signal in the PLC, adding a temporary latch in the logic to capture a momentary drop, logging drive data, and checking whether the fault correlates with heat, vibration, a particular product or a particular time of day.

    Thermal expansion, cables that fail only when a machine is at one end of its travel and electrical noise from a nearby drive are common culprits. With intermittent faults the plant’s records matter more than anything the electrician brings.

    What Queensland Law Says About Testing Live Equipment

    Fault finding often requires measurements on energised circuits, and this is an area where the rules are strict. In Queensland, electrical work on or near energised electrical equipment is generally prohibited. Near means within 3 metres of an exposed energised part.

    Energised work is permitted only in prescribed circumstances, which include testing and situations where there is no reasonable alternative. When it is carried out, the requirements include a risk assessment, a safe work method statement, the use of suitable testing equipment and protective equipment by a competent person, keeping unauthorised people out of the immediate area and consultation with the person who manages or controls the workplace. A safety observer is required unless the work is testing only and the risk assessment shows there is no serious risk.

    For a plant manager this has two practical consequences. First, expect a competent electrician to isolate wherever testing can be done dead, and to take a few minutes over paperwork when it cannot. Second, your site is part of the process. The electrician must consult you, and the pressure to get the line back must not become pressure to skip the controls.

    Reset or Repair

    A reset restores production. A repair removes the cause. Both have their place, because sometimes the right decision is to run until the next planned stop. The mistake is to reset and forget.

    A simple rule works well. Any fault that is reset without a known cause gets written down. Any fault that appears three times gets investigated properly at the next opportunity, with the machine stopped and the time to do it. The list of repeat resets is often the best source of items for a maintenance day or a shutdown.

    What the Plant Can Do in Advance

    Most of the time lost in a breakdown is lost before the fault finding starts. These are the preparations that pay back most.

    Current drawings. Schematics that match the panel, kept where they can be found at night. This is the single biggest factor in fault finding time.

    Software backups. A current copy of every PLC, HMI and drive configuration, stored on site and off it, with the passwords.

    Labelling. Devices, cables and terminals labelled to match the drawings.

    Critical spares. The specific sensors, drives, contactors and power supplies your lines depend on, identified in advance and held where the night shift can reach them.

    A fault log. Date, machine, symptom, cause and fix. After a year it becomes the most useful document in the maintenance office.

    Operator notes. Alarm text and time recorded before reset.

    When to Call for Help

    In-house teams handle most faults well. The time to call for support is when a fault has outlasted the people on shift, when it involves a control platform nobody on site can go online with, when a safety circuit is implicated, or when the same fault keeps returning. Calling early is cheaper than calling after four hours of lost production.

    Fault Finding Support From BevTech

    BevTech is a family owned engineering business in Richlands, Brisbane, with more than 25 years in beverage and FMCG manufacturing. Our industrial electricians provide fast, methodical diagnosis of electrical and control faults during production, working on Allen Bradley and Siemens platforms across fillers, seamers, cappers, labellers, conveyors and CIP systems. We offer 24/7 breakdown support and shift coverage across Brisbane and South East Queensland, and because our mechanical trades and machine shop are part of the same business, a fault that turns out to be mechanical is still our problem to solve.

    If recurring faults are costing you production, use the contact form at bevtech.com.au/contact and we will arrange a time to look at the line.

    This article is a general guide current as at October 2026. Confirm the requirements for energised work at your own site with the Electrical Safety Office.

  • Commercial vs Industrial Electrician: Which Does Your Site Need?

    Commercial vs Industrial Electrician: Which Does Your Site Need?

    The Same Licence, Very Different Work

    A manufacturer looking for an electrician will find hundreds of businesses describing themselves as commercial and industrial. The phrase suggests the two are much the same. They are not, and choosing the wrong one for a job is a common and avoidable cause of delay, rework and extended downtime.

    This guide explains the real difference between commercial and industrial electricians, which parts of a manufacturing site suit each, and how to tell which one you are talking to.

    What the Licence Does and Does Not Tell You

    In Queensland both hold the same electrical work licence, and the businesses they work for hold the same electrical contractor licence. The law makes no distinction between commercial and industrial. A licence confirms that a person is permitted to perform electrical work and has been trained to do it safely. It does not tell you what they have spent the last ten years doing.

    The distinction is one of experience. That makes it harder to check and more important to ask about.

    What Commercial Electricians Do

    Commercial electrical work is the electrical fit-out and maintenance of buildings: offices, shops, schools, warehouses, hospitality venues and the like. The typical scope includes lighting and emergency lighting, general power, distribution boards, data and communications cabling, air conditioning supplies, security and access systems, and switchboard upgrades.

    It is skilled work with its own demands. Commercial electricians are good at reading building plans, coordinating with other trades on a construction programme, meeting building compliance requirements and finishing work neatly in spaces the public will see.

    Male electrician uniform working switchboard electricity

    What Industrial Electricians Do

    Industrial electrical work is about machinery and process. The scope includes three phase motor circuits, motor control centres, variable speed drives and soft starters, PLCs and HMIs, sensors and instrumentation, machine safety systems, and the installation and commissioning of production equipment.

    The skills are different. An industrial electrician reads control schematics instead of building plans, fault finds logically through a control system, understands how a machine is meant to behave and works safely around moving plant. In food and beverage plants they also work within hygiene rules and washdown conditions that a commercial electrician may never have met.

    Where the Two Overlap

    The boundary is not a wall. Both install cable tray, terminate switchboards and test installations. Many electricians have done some of each. And every factory contains a good deal of commercial style work: the office, the canteen, the warehouse lighting, the car park.

    The overlap is why the confusion exists. A contractor who has wired a factory building has not necessarily worked on what is inside it.

    Which Does Your Site Need

    For a manufacturing site the answer is usually both, for different things.

    Suited to a commercial electrician: office and amenities power and lighting, warehouse lighting upgrades, data cabling, exit and emergency lighting testing, general building maintenance, car park and external lighting.

    Needing an industrial electrician: anything connected to a production machine, motor starters and drives, control panels, PLC and HMI faults, sensors and instruments, safety interlocks and emergency stops, new machine installation and line modifications.

    Worth thinking about: main switchboard work and power distribution. Either may be capable, but the work has to be planned around production, and an understanding of what each circuit feeds on the factory floor matters a great deal.

    Signs You Have the Wrong One for the Job

    A commercial electrician out of their depth on a production line tends to show it in recognisable ways. They ask where the reset button is. They cannot connect to the PLC and do not own the software. They replace components in turn until the fault goes away. They are uncomfortable isolating part of a machine while the rest runs. They install standard fittings in a washdown area. They finish a job on a safety circuit without testing and recording the safety function.

    None of this reflects on their ability as tradespeople. It reflects a mismatch between the job and their experience. The reverse mismatch exists too. An industrial electrician is rarely the most economical choice for fitting out an office.

    Six Questions That Reveal the Difference

    Because the licence will not tell you, ask.

    What proportion of your work is on production machinery? Which PLC and drive platforms do your electricians work with, and do you hold the software? Can you describe a recent fault you diagnosed on a production line? What do you do differently when working in a food production area? Who validates a safety function after you have modified it? Do you provide electrical drawings and update existing ones?

    An industrial contractor answers these quickly and specifically, with examples. A commercial contractor will often answer honestly that it is not their usual work, which is a useful answer and one to respect.

    Why the Wrong Choice Costs More in a Plant

    In a commercial building a slow diagnosis means a room without lights for a few extra hours. In a plant it means a line standing idle, product at risk in tanks, people paid to wait and orders slipping. Hourly rates are a small part of the cost of a breakdown. The length of the stoppage is the large part, and the length depends on how quickly someone understands the machine.

    There is also a safety dimension. Production machinery can injure people in ways that building services cannot. Work on guards, interlocks and emergency stops calls for people who understand machine safety, and modifications to a machine can carry design responsibilities that a plant should not take on by accident.

    Should You Use One Contractor or Two

    Some manufacturers use a commercial contractor for the building and an industrial one for the plant. That can work well provided the boundary is clear and both know who is responsible for the main switchboard and the distribution system between them.

    Others prefer one provider for everything on site. The advantage is a single team that knows the whole installation, from the incoming supply to the last sensor on the line. If you take this route, make sure the provider is industrial first. An industrial electrician can change a light fitting. The reverse does not always hold.

    Industrial Electricians at BevTech

    BevTech is a family owned engineering business in Richlands, Brisbane, with more than 25 years in beverage and FMCG manufacturing. Our electricians are industrial specialists. They work every day on fillers, seamers, cappers, labellers, conveyors, motor control centres, refrigeration and CIP systems, on Allen Bradley and Siemens control platforms, alongside our automation engineers and TUV certified functional safety engineers. We carry out installations to AS/NZS 3000, machine commissioning, production fault finding, safety system upgrades and electrical design, with 24/7 shift coverage and breakdown support across Brisbane and South East Queensland.

    If you are not sure whether a job on your site needs industrial experience, ask us. Use the contact form at bevtech.com.au/contact and we will give you a straight answer, including when the right answer is a commercial contractor.

    This article is a general guide current as at October 2026. Check any electrician’s licence on the Electrical Safety Office public search before work starts.

  • Emergency Electrician for a Brisbane Factory: The First Hour of an Electrical Failure

    Emergency Electrician for a Brisbane Factory: The First Hour of an Electrical Failure

    When the Power Goes Wrong on a Production Floor

    An electrical emergency in a factory is different from one in an office or a home. There is product in tanks and on lines, refrigeration that cannot stay off for long, cleaning cycles part way through and machinery that may not be safe to restart without checks. The decisions made in the first hour largely determine whether the event costs a few hours or a few days.

    This guide is for plant and shift managers in Brisbane and South East Queensland. It covers what to do first, how to get the right emergency electrician moving quickly, what the law requires you to report and how to prepare so that the next event is shorter.

    First: People

    If anyone has received an electric shock, or may still be in contact with a live part, do not touch them. Isolate the supply if you can do so safely, call triple zero and begin first aid once the person is clear of the electrical source. Anyone who has received a shock should be medically assessed even if they feel well, because effects can be delayed.

    If there is fire, smoke or a burning smell from electrical equipment, evacuate the area and call triple zero. Do not use water on electrical equipment.

    Keep people away from the affected equipment. Do not open switchboard doors to look. A fault inside a switchboard can release a great deal of energy, and an unqualified person in front of an open panel is in the worst possible place.

    Second: Work Out What Has Actually Failed

    From a safe distance, establish the extent of the problem. The answer directs everything that follows.

    The whole site is off. Check whether neighbouring premises have power. If they do not, the fault is probably on the network and the call is to your electricity distributor, which in South East Queensland is Energex. If neighbours have power, the problem is likely your own main switch or incoming equipment.

    Part of the site is off. A section of the plant or a group of machines without power points to a tripped breaker or blown fuse on a sub main or distribution board.

    One machine is off. This is a machine fault and the most common case.

    Things are behaving strangely. Motors humming and not starting, lights dim in one area or equipment running hot suggests a lost phase. Stop affected motors, because a motor running on two phases can burn out quickly.

    Third: Do Not Keep Resetting

    A circuit breaker that trips has done its job. It is protecting cable and equipment from damage. Resetting it once, after a visual check for anything obvious, is reasonable. Resetting it repeatedly is not. Each attempt closes the supply onto a fault, and each one can do more damage to the equipment and to the breaker itself.

    If it trips again, leave it off and call an electrician. The same applies to drives and overloads that keep tripping.

    Fourth: Protect the Product

    While help is on the way, the production team can limit the loss. The priorities in a beverage or food plant are usually these.

    Refrigeration and temperature control. Find out how long tanks and cold rooms can hold temperature. Keep doors shut. If glycol or refrigeration plant is down, this becomes the clock that matters.

    Cleaning cycles. A CIP cycle interrupted part way through may have left chemical in the line. Make sure nobody restarts production on that circuit until it has been checked and the cycle completed.

    Product in process. Decide what on the line can be recovered and what must be held for quality review.

    Controlled restart. When power returns, do not let everything start at once. Bring equipment up in sequence so that the starting load is spread and so that each machine is checked as it comes back.

    Fifth: Make the Call Count

    An emergency electrician can prepare on the way if you give them the right information. Have the following ready.

    Which area and which machine is affected. What was happening when it failed. Any alarm messages or fault codes, exactly as displayed. Whether a breaker has tripped and which one. What has been tried already. Whether anyone was hurt. The control platform on the machine, such as Allen Bradley or Siemens. Who will meet them at the gate and what induction they need.

    Send someone to find the electrical drawings for the affected equipment and the latest software backup. Having them on a bench when the electrician arrives can save an hour.

    What You May Be Required to Report

    Some electrical events must be notified to Queensland’s Electrical Safety Office by the business concerned. The Electrical Safety Act 2002 defines two categories.

    A serious electrical incident includes a person being killed by electricity, a person receiving a shock or injury from electricity that is treated by or under the supervision of a doctor, and a person receiving a shock or injury from electricity at high voltage whether or not treatment is given.

    A dangerous electrical event includes significant property damage caused by electricity or by a fire originating from electricity, as well as unlicensed or unsafe electrical work.

    Where a death is involved, notification must be immediate. In other cases notify promptly by phone and follow up with the written incident notification form. Keep your records of the incident for at least five years.

    There is a second obligation that is easy to breach under pressure. It is unlawful to interfere with the scene of a notifiable incident without the permission of an inspector or a police officer, except where that is necessary to save life, relieve suffering or prevent injury or property damage. Make the area safe, then leave it as it is until you have been told you can proceed. Repairs to get production going do not come first.

    After the Power Is Back

    Getting running again is not the end of the job. Ask the electrician what failed and why, and get the answer in writing. A breaker that tripped because a motor failed is a different matter from one that tripped because the switchboard is overloaded. If the cause was not found, treat the event as unfinished and schedule a proper investigation.

    Then record it: time, extent, cause, what was done and how long each stage took. The stages that took longest are the ones to fix before next time.

    Preparing Before It Happens

    Plants that recover quickly have usually done a few simple things in advance.

    A current single line diagram of the site, displayed in the main switch room and held in the maintenance office. Switchboards and breakers labelled to show what they feed. An emergency contact list with the distributor’s fault line and your electrical provider’s after hours number, posted where the night shift can see it. Drawings and software backups stored where they can be found without the day shift. Critical spares identified and on the shelf. A restart sequence written down. And an agreed arrangement with an industrial electrician who already knows the site, so that the first call is not also the first introduction.

    Emergency Electrical Support From BevTech

    BevTech is a family owned engineering business in Richlands, Brisbane, with more than 25 years in beverage and FMCG manufacturing. Our industrial electricians provide 24/7 breakdown support and shift coverage across Brisbane and South East Queensland, with fast, methodical diagnosis of electrical and control faults on Allen Bradley and Siemens systems. Our mechanical trades and machine shop are part of the same business, so a failure that turns out to need a part made is still handled by one team.

    The best time to set up emergency cover is before you need it. To talk through an arrangement for your plant, use the contact form at bevtech.com.au/contact.

    This article is a general guide current as at October 2026 and is not a substitute for your site emergency procedures. In a life threatening emergency call triple zero.

  • Brisbane’s Industrial Electrician Shortage and What It Means for Your Shift Roster

    Brisbane’s Industrial Electrician Shortage and What It Means for Your Shift Roster

    A Shortage That Is Not Going Away

    Every Brisbane maintenance manager has a version of the same story. A trusted industrial electrician resigns, the role goes to market, and what used to produce a shortlist now produces a trickle. Months pass. The roster that was comfortable in March is being held together with overtime by June. The role eventually gets filled, often by paying well above the old rate, and sometimes by poaching someone from a plant twelve kilometres away who will themselves need replacing.

    It is tempting to read this as bad luck or a poorly run campaign. It is neither. Electricians have sat on Australia’s national skills shortage lists year after year, and the industrial end of the trade, where the work involves control systems, drives and plant equipment rather than domestic wiring, is the tightest segment of a tight market. Understanding why matters, because the causes tell you how long the condition will last and therefore how you should structure your roster.

    The Demand Side: Everyone Wants the Same People

    Demand for electrical trades in South East Queensland has been climbing from several directions at once, and manufacturing is competing with all of them.

    Infrastructure and construction absorb enormous numbers of electricians, and Brisbane has been in a sustained build cycle. The energy transition adds another layer, with grid work, renewables projects and battery installations all drawing on the same licensed pool. Resources and mining continue to offer rosters and pay packets that a suburban food plant struggles to match, and the fly in fly out option is within easy reach of Brisbane. Data centres, warehousing automation and logistics facilities have emerged as a further competitor, often offering newer equipment and more comfortable working conditions.

    Against that field, an FMCG plant is bidding for a specific and unusually capable person: someone who can work on energised industrial equipment, read a PLC program, diagnose a drive fault, respect food safety constraints, and do it at three in the morning on their own. The pool of people who can genuinely do all of that in Brisbane is small, and every one of them has options.

    The Supply Side: The Pipeline Is Not Refilling Fast Enough

    Supply has not kept pace for structural reasons that no single employer can fix. Apprenticeship completion rates across the electrical trades have long been a source of concern, with a substantial share of commencements never finishing, which means headline apprentice numbers overstate the eventual supply. The existing workforce is ageing, and a wave of experienced tradespeople is moving toward retirement carrying decades of plant knowledge with them.

    There is also a specialisation gap. A newly qualified electrician is not yet an industrial electrician. The capability that makes someone valuable on a production line, comfort with automation platforms, fault finding under pressure, familiarity with process equipment, takes years of exposure to build. Even a healthy apprenticeship pipeline would not produce plant ready industrial electricians quickly.

    What This Does to a Roster

    The practical consequences show up in four ways, and most Brisbane plants are experiencing at least three of them.

    Time to fill has stretched. A permanent industrial electrician vacancy that once took six weeks now routinely takes three to six months, and some campaigns fail entirely and have to be rerun with a higher budget. Wage pressure has followed, with counter offers and poaching becoming normal, which quietly raises the cost base of every plant in the corridor. Overtime dependency grows, because the shifts still have to be covered and the remaining team absorbs the difference, which drives the fatigue and attrition that started the cycle. And roster fragility becomes chronic: a team with no slack cannot absorb a single sick call without an uncovered shift.

    The compounding effect is the dangerous part. Each of these makes the others worse. Overtime drives resignations, resignations extend vacancies, vacancies drive more overtime.

    The Strategic Response: Treat Cover as Structural

    The plants coping best in Brisbane have made a mental shift. They have stopped treating contracted electrical cover as an emergency purchase and started treating it as a permanent component of how the plant is staffed.

    In practice that means sizing the permanent team for the workload that genuinely exists every week of the year, and deliberately buying the remainder as contracted cover. It means holding a live relationship with a provider, with inductions current and terms agreed, so a short notice request is administratively trivial rather than a scramble. It means requesting the same electricians repeatedly so site knowledge accumulates on the contracted side as well as the permanent side. And it means accepting that in a market this tight, an always full permanent roster is not a realistic operating assumption.

    This is not a counsel of despair about recruitment. Keep recruiting, invest in apprentices, and be the plant that experienced people want to work at. But run the roster on the assumption that gaps will occur, because in this market they will.

    What Plants Can Still Control

    Three things remain firmly within your control, and all three are worth more than another job advertisement.

    The first is retention of the people you have, which is largely a function of whether the job is sustainable. Fix the overtime dependency and you remove the main reason good electricians leave. The second is documentation and system quality, because a plant with current drawings, clear isolation points and sensible alarm management is one where a covering electrician becomes productive fast, which widens the pool of people who can help you. The third is the quality of your provider relationship, which determines whether a 5pm phone call ends with a competent person on site or with an uncovered night shift.

    Where BevTech Fits

    BevTech sits on the supply side of this problem from an unusual position. It is not a recruitment agency but a family owned engineering business with more than 25 years in manufacturing, focused on FMCG and beverage production, employing control system engineers, industrial electricians and TUV certified functional safety engineers. The same team delivers electrical and automation projects on Allen Bradley and Siemens platforms, precision machining and fabrication, and turnkey installations for some of the largest manufacturing companies in Australia.

    That means the industrial electricians it supplies for shift cover in Brisbane have been assessed by people who do the work themselves, and they arrive with an engineering business, a workshop and 24/7 support standing behind them. In a market where the scarce commodity is proven capability rather than bodies, that distinction is the whole point.

    If the shortage is currently showing up on your roster as overtime, uncovered shifts or a vacancy that will not close, it is worth a conversation. Reach BevTech through the contact form at bevtech.com.au.

  • Equipment Refurbishment vs Replacement: A Decision Framework for Plant Managers

    Equipment Refurbishment vs Replacement: A Decision Framework for Plant Managers

    Every piece of production equipment eventually reaches a point where a plant manager has to decide whether to invest in refurbishment or commit to full replacement. This decision is rarely as simple as comparing a refurbishment quote against a new equipment price, since the right answer depends on factors that are easy to underweight when the conversation is dominated by a single headline cost comparison.

    Why the decision is harder than it looks

    A refurbishment quote will almost always look cheaper than a replacement quote on its face, which creates a natural bias toward refurbishment in budget conscious organisations. But this comparison only holds if the refurbished equipment genuinely matches the reliability, output, and integration capability of new equipment for a comparable remaining service life. If a refurbishment extends a machine’s useful life by only two or three years before further significant work is needed, while a replacement offers a fifteen year service life with modern control integration and improved efficiency, the simple upfront cost comparison can be misleading.

    Factors that should drive the decision

    Mechanical condition is the obvious starting point, but the more useful question is not just how worn the equipment is, but whether the underlying frame, drive system, and major components are sound enough to support a meaningful extension of service life, or whether wear has progressed to the point where refurbishment would essentially mean replacing most of the machine’s value anyway, at which point full replacement often becomes the more sensible path.

    Control system compatibility matters just as much as mechanical condition. A mechanically sound machine running on an obsolete control platform may need a parallel control system upgrade alongside any mechanical refurbishment, which changes the cost equation considerably and may tip the balance toward replacement with modern, integrated control as standard.

    Parts availability is a quieter but increasingly important factor. As original equipment manufacturers discontinue support for older machine generations, refurbishment becomes progressively harder and more expensive, since custom fabricated replacement parts may be needed for components that were once simply ordered from the OEM catalogue. This is an area where a fabrication and machining partner with strong reverse engineering capability becomes valuable, since they can manufacture replacement components even when official parts support has ended.

    Downtime during the works is the factor most likely to be underestimated in a refurbishment business case. A full mechanical overhaul can take a machine out of production for an extended period, and if that downtime is not properly costed against the production lost during the works, the comparison against replacement, which typically also requires installation downtime but may come with manufacturer support and faster commissioning, can be skewed.

    Building a defensible framework

    A practical decision framework weighs four dimensions for each major piece of equipment under consideration, remaining mechanical service life achievable through refurbishment versus the service life of new equipment, the control system integration cost in each scenario, parts and ongoing support availability over the likely service life, and total downtime cost for the works in each option. Scoring equipment against these dimensions, rather than defaulting to whichever quote has the lower upfront number, produces a more defensible business case when presenting to finance or executive stakeholders for capital approval.

    When refurbishment is the clear winner

    Refurbishment tends to make the strongest case when the core mechanical structure of the equipment, the frame, major drive components, and structural elements, remains genuinely sound, when the required work is well defined and bounded rather than open ended, and when the equipment’s control system can be upgraded as part of the same project to bring it up to current integration standards without the full cost of mechanical replacement. In these cases, a structured refurbishment can deliver a service life extension at a fraction of replacement cost while also modernising the control architecture.

    Independent assessment before committing

    Because the refurbishment versus replacement decision carries significant capital implications either way, it is worth obtaining an independent mechanical and control system assessment before committing to either path, rather than relying solely on a refurbishment quote from a party with an obvious interest in recommending refurbishment, or a sales quote from an equipment manufacturer with an obvious interest in recommending replacement.

    Bevtech Engineering and Automation provides equipment refurbishment, research and development, and design and engineering services for food and beverage manufacturers, backed by an in house machine shop and electrical automation team capable of addressing both the mechanical and control system dimensions of an ageing equipment decision. To arrange an independent assessment of equipment nearing a replacement decision point, contact Bevtech on +61 400 881 321 or admin@bevtech.com.au, or visit 25 Silvio St, Richlands QLD.

@Fd2X@HoSi10178
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