Custom Machine vs Standard Equipment

Custom machine vs standard equipment: what forces a custom build, what a catalogue machine buys instead, lead time, ten-year cost, and when not to go custom.

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Two assembly machines side by side for comparison: on the left a small single-station benchtop unit with a simple guard and one control button, on the right a larger purpose-built rotary machine with several stations, an HMI on a swing arm and a stack light

Motionwell Automation designs and builds production machines in Singapore, and the custom machine vs standard equipment question is the first one a buyer faces, usually before a layout exists or a price has been discussed. Our own answer goes against us often enough to be worth stating in the first paragraph: we integrate proven standard units for induction sealing, can seaming and stretch wrapping rather than designing our own, and we have not built a high-speed rotary roll-fed labeller or a shrink sleeve applicator with a steam tunnel, so where one of those is the right answer we point at the standard machine. What does get designed here is equipment nobody sells from a catalogue: a 5-axis CNC shot peening machine moving X, Y, Z, B and C simultaneously at 0.3 to 0.6 MPa for 100 to 200 per cent coverage on a turbine blade, a GMP filling and sealing platform holding plus or minus 0.5 per cent of target volume with the capping torque curve logged for every container, cleanroom automated test equipment running 4 to 6 stations under fan filter units holding ISO Class 7/8. Machines are designed, assembled and tested at our Woodlands Link facility, and the company has delivered more than 150 special purpose machines since 2014 under ISO 9001:2015 and bizSAFE Level 3.

Where we stand, said plainly before you read further. We sell custom machines, so this page carries a commercial bias, and the way to test it is the section below on when not to go custom, which names cases we would lose. We are not a distributor reselling someone else’s machines. We do not sell machine tools. We do not take on production welding cells. We are not a notified body and we do not issue CE certificates.

This page takes the decision in the order a buyer meets it: what forces a custom build, what standard equipment buys that a custom machine cannot, where we say the catalogue machine wins, the hybrid many delivered lines turn out to be, lead time, the arithmetic over a decade rather than at purchase, obsolescence on both sides, and when not to go custom at all. How a custom machine is then scoped, engineered and commissioned is a separate subject, set out in our special purpose machine design guide; this page stops at the decision. The same decision one level down, once a custom cell is agreed, is on the cobot and industrial robot comparison and the gantry and six-axis machine tending comparison. If you have a part, a rate and a site constraint, skip ahead and talk to an engineer.

What Actually Forces a Custom Build?

Five conditions do. Each is a fact about your product or your plant rather than a preference, and one on its own is enough. Wanting a machine that fits better is not on the list, and neither is a catalogue machine that would work with some inconvenience.

Product geometry outside any standard envelope. Turbine blades are the clearest case we have delivered: the shaped rack fixture on the shot peening machine holds 20 to 30 blades per side for dual-side access, because a blade does not sit in a tray and no standard carrier presents it to a nozzle. Packaging carries the same constraint more quietly. On a rotary machine the star wheel, container guides and capping chuck geometry are tied to one container envelope, so a container outside it is a change part set rather than a recipe, and a container outside every available envelope is a machine.

A process nobody sells a machine for. Blasting a part is not on its own a reason to build a machine. Five-axis nozzle control holding a programmed angle and standoff around an aerofoil, sequenced from G-code with a collaborative arm loading it for unattended running, is a different requirement, and 2 to 5 minutes per blade at 100 to 200 per cent coverage is proved by Almen strip intensity measurement during commissioning rather than by anything on a datasheet. Our SCARA sensor panel assembly line is the same shape of problem: the panel is picked on Schmalz vacuum cups, placed under vision guidance and fastened by an electric screwdriver working to a torque set per fastener in the recipe.

A rate, or an envelope, that no catalogue unit hits in the space you have. This is the condition most often mistaken for the previous one, because the process is ordinary and only the constraint is not. Our own low-profile robot track exists for exactly that reason: a conventional seventh axis consumes 200 to 400 mm of vertical working height before the arm has done anything, and ours is 100 mm overall on adjustable feet with no floor pit, at plus or minus 0.05 mm repeat positioning. The honest inverse holds too, and it is on our robot seventh axis page: where a catalogue travel unit from your robot vendor covers the stroke, the payload and the height you have available, buy it.

Integration into a line you already run. A large share of end of line palletizing work is a retrofit rather than a greenfield installation, and the machine has to accept whatever the existing line hands it: conveyor height and case pitch as they are, a handshake with the upstream controller covering case ready, accumulation full, pallet in position, pallet complete and fault, and a reject that has somewhere to go. None of that is a catalogue specification, because it is a specification about your plant rather than about the machine.

A record requirement rather than a process requirement. Where the line is regulated, the machine has to be provable and not merely working. On the GMP filling and sealing platform the servo capping heads log the full torque curve for every container instead of a final figure, and once that log is evidence that a cap was applied correctly it falls under 21 CFR Part 11, which decides where it is stored, who may alter it and what audit trail follows. A machine bought without that capability cannot be talked into it afterwards, which is why compliance is a common driver behind the control system retrofit work that is now our largest project line, as set out on our electronic batch record page.

What Does Standard Equipment Buy That a Custom Machine Cannot?

Four things, and a custom builder who will not name them is not worth trusting on the rest.

A part number on a shelf. A catalogue model has an installed base, so the manufacturer holds an assembly under an order code and can ship it. On a one-off machine there is no such code; the spares are the components inside it. That is workable, and it is why every delivery includes mechanical drawings, electrical schematics, PLC program documentation, operator training, maintenance schedules and spare parts lists. It is still a real difference, and the way to close it at purchase is to ask for the list and hold the items that matter locally.

A service network. On a standard machine somebody other than the builder can be called. On a custom machine the people who know it are the builder plus your own maintenance team, so the handover has to carry more. Our answer is proximity rather than a network: design, fabrication, assembly and testing happen across five units at 20 Woodlands Link, which is why a Singapore buyer attends the factory acceptance test instead of flying to it. Proximity is not the same thing as a service network, and it is worth saying so.

A price you can compare. A catalogue machine has a list price against a model number, so two offers can be lined up item by item. We do not publish prices, because a nominal machine of the same description moves a long way on decisions taken before hardware is ordered. A published number you can argue with is a genuine advantage of the standard route, and a custom builder who pretends otherwise is selling.

Somebody else’s debugging. Where a model has a long production history, failure modes surface across that installed base and a manufacturer that acts on them folds the fixes into later builds. On a one-off machine the first hundred hours of running is the first hundred hours anyone has run it. That is what factory acceptance testing is for, and why the test happens at our facility with the customer present before the machine ships.

What you are buying Catalogue machine Custom machine
Spares An assembly with its own order code The components inside it, listed in the handover pack
Who can service it The manufacturer, their agent, and often a third party The builder and your own maintenance team
Price discovery A list price against a model number A quotation after concept review
Failure modes Found by the installed base before you Found at factory acceptance testing and early production
Fit to your process What the model does, and what it does not Designed against the process sheet
Documentation The manual for the model Drawings, schematics, program documentation, maintenance and spares list for your machine

Where Do We Say the Standard Machine Is the Right Answer?

Regularly, and the list is specific rather than a gesture. Work we have not delivered does not get a page here, and processes that are settled commodities do not get designed twice.

Where the standard unit wins What we do instead
Induction sealing heads Integrate a proven unit; the result is decided by the cap, the liner and the application torque, not by the head
Can seaming Integrate a proven seamer, because seaming a can lid is a specialised machine
Stretch wrappers, shrink tunnels, carton erectors, case sealers Integrate proven standard machines rather than designing our own
High-speed rotary roll-fed labelling, shrink sleeve with steam tunnel Not delivered here; we point you at the standard machine
Electric rod actuators, catalogue linear stages, screw jacks, packaged lift columns Specify one where it covers the stroke, load and duty, as on the servo lift and positioning page
Catalogue grippers Specify a Schunk or DH Robotics unit rather than machining our own
Off-the-shelf gauges and sensors with their own bracket Point you at the instrument rather than design a station around it
Robot arms, controllers, cameras, drives Buy and integrate them; we manufacture none of these
A single benchtop instrument that is the bottleneck Buy the instrument, as set out on the laboratory automation page
Conveying, drum motors, cable carrier Interroll, Intralox and igus components, sized for the load

Two of those rows are the honest core of this page. An induction sealing head and a can seamer are settled products where the engineering that matters happens elsewhere in the pack, so designing our own would cost you money and buy you nothing. And where your closure, container or part runs at a rate a catalogue machine already covers at a lower price, saying so costs you a conversation rather than a commitment. The same position on the packaging side, including which parts of a line we build and which we integrate, is on the case packing and wrapping page.

Is the Real Answer Standard Modules Inside a Custom Frame?

Often, yes, and reading the choice as pure custom against pure catalogue misdescribes what actually ships. A Motionwell machine combines bought components arranged and controlled in a way nobody sells: precision parts machined to our own drawings by qualified machining partners, standard components sourced from approved suppliers, assembled and integrated in our own facility.

Layer of the machine Where it comes from
Robot arm, controller, drives, cameras Bought: ABB, JAKA, Yamaha SCARA and others, on the platform your plant already runs
Control platform Bought: Allen-Bradley, Siemens, Omron, Mitsubishi, Beckhoff, chosen against your site standard
Pneumatics, vacuum, cable carrier, conveying Bought: SMC and Festo, Schmalz, igus, Interroll and Intralox
Grippers where a catalogue unit fits the part Bought: Schunk and DH Robotics
End-of-arm tooling where no catalogue unit fits Designed: the plate, the fingers, the cup layout, the compliance, the sensing
Part presentation, fixtures, frame, station sequence Designed: this is the part that decides whether the cell makes rate
Safety architecture, guarding, interlocks Designed against the risk assessment for your installation
Recipes, handshakes, data and records Designed: shipped with the machine rather than sold as a licence

The consequence is that the components carry their own support and the arrangement carries ours, which is why we ask which control platform and which robot brand your maintenance team already stocks spares for before selecting anything. Where two platforms both clear payload, reach, speed, precision and safety mode, the existing plant standard wins on cost of ownership, because spares, training and support already exist.

There is a second hybrid that deserves a warning rather than a recommendation: buying a standard machine and modifying it. The engineering objections are in the special purpose machine design guide and are not repeated here. The one that guide does not cover is regulatory. For machinery placed on the EU market, the European Commission states the Machinery Directive applies to products placed on the market for the first time, or when existing machinery is modified to such an extent that it becomes de facto new machinery. Cross that line and whoever did the modification is in the manufacturer’s position, with the conformity work that follows. Where the line sits is a judgement made per project rather than a published threshold, which is why it belongs in the kickoff meeting and not in a change order. Regulation (EU) 2023/1230 then applies to machines placed on that market from 20 January 2027 with no transitional period, so a machine being specified now for European sites should be documented against the edition that will be in force when it ships. How that scope is handled is on our machine safety and CE marking page.

How Do the Two Lead Times Actually Differ?

A custom build runs 16 to 24 weeks from concept approval to factory acceptance testing on a standard build, and 24 to 32 weeks where cleanroom compatibility or full GMP validation applies. The clock starts at concept approval rather than at your enquiry, and how that time is spent is broken down by machine complexity in the design guide.

A catalogue machine quotes a delivery date, and it is normally shorter. The comparison run against it is the wrong one, because a delivery date is not the date you make sellable parts. On the standard route the work after arrival is integration into your line, and none of it is on the distributor’s schedule: conveyor heights that have to match, a handshake with the existing controller that somebody has to own, guarding of the combined installation rather than of the machine alone, and whatever the part presentation turns out to need. Compare first-good-part to first-good-part and the gap narrows, sometimes to nothing.

The schedule risks are also different in kind, which matters more than the weeks. On a custom build the recurring one is late finalisation of the product design, because a geometry change after detail engineering has started changes the machine, which is why the product design is frozen before that phase begins. On a standard machine the equivalent risk arrives after delivery: the unit does not accept your container or your part as it stands, and the modification that follows is a project with its own schedule, its own cost and, on a validated line, its own change control.

What Does the Comparison Look Like Over a Decade Rather Than at Purchase?

An automation system operates for 10 to 15 years, so the purchase price is one input among many. The worked payback model on our warehouse automation ROI page puts a number on that: halving the equipment price improved payback by eight months, while failing to convert the assumed headcount reduction into a payroll change cost twenty-eight. The equipment quotation is the line everyone negotiates and, in that model, one of the least sensitive inputs in it. Run the same sensitivity on your own case before letting a price difference settle the decision.

What belongs in the ten-year picture is the set of costs that arrive after the invoice, and they arrive on both options.

Cost line over the life On a catalogue machine On a custom machine
Consumables The manufacturer’s list, if one is published Named at concept stage: on our cleanroom test equipment the engineering-plastic nests are consumables with a defined replacement interval
Recalibration routine The model’s procedure Defined per station: the collaborative loading on that same equipment is calibrated against a reference pin at the start of every batch
Spares holding An assembly under an order code Components you choose to hold; the handover pack lists them
Support response The manufacturer’s or agent’s terms The builder’s terms; ours are a Singapore-based team with local spares for specified components
Format and product changes A change part set if the model offers one, otherwise a limit A change part set, or a recipe where the axes were motorised for it
Controls life Set by the manufacturer’s support for that model Set by the platform chosen at design stage

Two items on that table are ones often left out of a quotation rather than disputed in it. A specification that lists no consumables has moved a running cost off the capital sheet without removing it, so ask any supplier for the consumable list, the replacement interval for each item, the re-verification routine an operator runs on shift, and which spares to hold in Singapore rather than order in. And ask for the support terms in writing: a benchmark worth holding both routes to is critical spares stocked locally or available within 3 to 5 business days, with engineers who can respond within 24 to 48 hours, which is the standard our integrator evaluation guide sets for any vendor, including us.

Which Side Carries More Obsolescence Risk?

Both carry it, in different places, and neither route escapes it.

On a standard machine the risk sits in the model. When the manufacturer discontinues it, spares thin out on someone else’s schedule and the timing stops being yours. The end of that cycle is visible in our order book: control system retrofit is the largest project line we run in 2026, replacing obsolete PLCs, servo drives and VFDs on legacy machines, mostly onto Allen-Bradley CompactLogix and ControlLogix controllers with Kinetix servo drives and PowerFlex 755 VFDs. A large share of that work has a compliance driver rather than a mechanical one, because the mechanics are still sound and the controller cannot hold a user account.

On a custom machine there is no model to discontinue, so the risk moves to the components and the paperwork. The mitigation is a decision taken years before the problem: build the controls on the platform your plant already standardises on, so the clock you are exposed to is the one your maintenance team already tracks. Where a PC sits in the loop, the point on our smart camera and PC vision comparison applies to either route: the hardware and the operating system age on separate clocks, and the end-of-support date is worth having in writing.

There is a third clock that catches both routes, and it runs on documents rather than parts. ISO 13849-1:2023 is the edition ISO 10218-1:2025 references for robot control system safety functions, so a design still documented against the 2015 edition will need its performance level calculations restated when the machine is re-assessed. Nothing on the machine changed. What changed is what the file has to say.

When Should You Not Go Custom?

This is the section that decides whether the rest of the page is worth trusting, so it names the cases we lose.

A standard machine already covers your part at your rate. The clearest disqualifier, and the one to test first. Where a proven catalogue machine does your job at a lower price than anything we would build, that is the answer, and finding it out costs you a conversation.

Volume is low and the format never changes. A semi-automatic filling machine of the tabletop or pneumatic type, bought from a local distributor, costs a fraction of a custom line and works fine when volumes are low, the format never changes and an operator loads each container by hand. The filling machines page sets out where those economics flip.

One bench is the bottleneck. If a single station is the constraint, buy the instrument for that station. A lab-wide transport, scheduling and traceability system is an engineering project, and it is the wrong purchase when one machine is the problem.

The process is a settled commodity. Induction sealing heads are the example we use on ourselves. Where the result is decided by consumables and a process parameter rather than by the mechanism, a bespoke design buys you a longer lead time and no better seal.

The product design is not frozen. A geometry change after detail engineering begins changes the machine, so a product still moving is a reason to wait rather than a reason to specify. Buy a flexible standard unit for the interim if you need capacity now.

You need it next month. Sixteen weeks is the short end of a custom build, so a delivery date inside that window is a requirement for something you can buy. Compressing a custom schedule to meet it produces a machine debugged in production.

Nobody will own the machine after handover. A custom machine assumes a maintenance team that reads schematics and holds spares. Where a site has no such team and no plan to build one, the supported catalogue product is the more honest choice regardless of fit.

You are buying flexibility you will not use. A machine designed for six formats when one will ever run costs more to build, more to change over and more to validate. Specify the range you have plus the one genuinely on the roadmap, and no more. The same discipline applies at component level: where a catalogue travel unit, actuator or gripper clears the stroke, payload, height and duty, buying it beats designing around it, and it arrives with stocked spares.

One boundary belongs here rather than in a footnote. We do not issue CE certificates or act as a notified body; we build to a specification and support your conformity work, including LVD and CE testing and Ministry of Manpower lifting certification where the machine includes lifting equipment.

Which Questions Settle It for Your Line?

Run these in order. The first that gives a hard answer usually settles it, and if two disagree, price standard modules inside a custom frame against both.

  1. Is there a product that does this at all? Not one that could be adapted. One that does your process, on your part, at your rate. If yes, price it before anything else.
  2. What is the sustained rate, and in what footprint? Rate on its own rarely forces a custom build. Rate inside a fixed height, floor area or aisle frequently does.
  3. Does the part fit any standard envelope? Check the carrier, the nest and the fixture, not the machine. Geometry is the condition that cannot be negotiated later.
  4. Does it have to join a line you already run? If it does, list the existing conveyor height, the controller, the handshake signals and where a reject goes, because that list is the specification.
  5. Does every unit have to be provable afterwards? A record requirement is architecture rather than a setting, and it cannot be added to a machine that was not built for it.
  6. Is the product design frozen? If not, the honest sequence is to freeze it, or to buy something standard for the interim.
  7. Who maintains it in year seven? Name the team, the platform they already stock spares for, and the response time you need. That answer often decides the control system before the mechanism is drawn.
Your situation Start from Why
A catalogue machine does your process at your rate The catalogue machine Spares, service, a published price and somebody else’s debugging
Low volume, one format, an operator loads by hand A semi-automatic unit from a distributor The custom economics have not flipped yet
Ordinary process, but it has to fit a height or footprint nothing clears Custom, or a custom carrier around a standard unit Envelope is structural rather than optional
The part fits no standard carrier, nest or star wheel Custom The envelope is designed in, not selected
Sequence exists in your process sheet and in no brochure Custom There is no installed base to buy from
Retrofit into a running line with existing controls Custom station around standard modules The interface is the project
Regulated line where every unit must be provable Custom, with the record architecture set at concept Logging depth and access control cannot be retrofitted cheaply
Settled commodity process inside a bespoke line A proven standard unit, integrated Nothing left for a custom design to improve
Product design still moving Wait, or buy standard for the interim A geometry change after detail engineering changes the machine
Next step: Send five things and we can tell you which of the three routes you are on. One: a drawing or sample of the part, with the feature that has to be held. Two: sustained parts per minute and shifts per day, not a peak figure. Three: the space it has to live in, with floor area, clear height and what is already overhead. Four: whether it joins an existing line, and if so the conveyor height, the controller make and vintage, and who owns the handshake. Five: whether every unit has to be provable afterwards, and to which rule. That is enough to say catalogue machine, custom build, or standard modules inside a custom frame, and if the answer is the catalogue machine we will tell you which one to look at.

Which standard editions apply right now?

The editions below are the ones we design and document against on current projects. We check them on the date shown rather than assuming last year's edition still holds.

StandardCurrent editionWhat it means for your machine
Modified machinery as new machinery — Machinery Directive 2006/42/EC scope rule Directive 2006/42/EC (applies until 19 January 2027) The European Commission states the Directive applies to products placed on the EU market for the first time 'or when existing machinery is modified to such extent that it becomes de facto new machinery'. For a retrofit this is the decision that sets the cost: a modernisation that crosses that line puts the party doing it in the position of placing new machinery on the market, with the conformity work that follows, while one that stays below it does not. Where the line sits is a judgement made per project, not a number, and it has to be settled before the scope is fixed rather than after.
Regulation (EU) 2023/1230 — the EU Machinery Regulation (EU) 2023/1230 (changeover pending) Replaces Machinery Directive 2006/42/EC for machines placed on the EU market from 20 January 2027. There is no transitional period: 2006/42/EC applies up to 19 January 2027 and the Regulation applies from the next day, on the European Commission's wording 'on a mandatory basis as of 20 January 2027'. Before that date a manufacturer may declare conformity with the new Regulation voluntarily on the EU Declaration of Conformity, so a machine being built now can be documented against it early. It is also the first EU machinery law to put software integrity, updates and connected functions alongside mechanical safety, which changes what a machine builder has to document for a networked line.

Editions last checked 1 September 2026. Standards bodies revise on their own schedule, so confirm the edition that applies to your contract before it is signed.

Frequently Asked Questions

When is a custom machine genuinely cheaper than standard equipment?

When a condition in your product or your plant closes the catalogue option, rather than when a custom machine simply fits better. On filling work the economics flip at sustained throughput above 20 units per minute, GMP or HSA validation requirements, several container formats on one line, or a quality system that requires inline verification with automatic rejection. Below those thresholds a semi-automatic machine bought from a distributor does the job for a fraction of the money. The test is not which machine you would rather own. It is whether anything you can buy would meet the requirement at all.

What do I give up by going custom?

Four things, and they are worth naming before you sign. A part number on a shelf, because spares on a one-off machine are the components inside it rather than an assembly with its own order code. A service network, because only the builder and your own team know the machine. A published price you can line up against a competitor's. And an installed base that has already found the failure modes, which on a one-off machine are found during factory acceptance testing and the first weeks of production instead. Ask any builder, including us, how each of those four is covered.

Can we buy a standard machine now and modify it later?

Sometimes, and the limit is regulatory rather than mechanical. For machinery placed on the EU market the European Commission states the Machinery Directive applies to products placed on the market for the first time or when existing machinery is modified to such an extent that it becomes de facto new machinery, which puts whoever did the modification in the manufacturer's position. Where that line sits is a judgement made per project rather than a published number, so it belongs in the kickoff meeting rather than in a change order. On a validated line the same modification is also a change control.

Not sure what configuration fits your product?

Talk to our engineering team. We will help you map the right approach.