When a business buys a significant piece of equipment, attention naturally goes to the purchase: the price, the specification, the delivery date, installation and commissioning. Once the machine is running and the invoice is paid, the purchase is considered done. For the people who run and maintain the equipment, that is when the real story begins.
They inherit whatever the purchase did or did not arrange: whether spare parts are available and how long they take to arrive, whether the controls need a proprietary tool or a specialist from overseas, whether software requires an annual subscription nobody budgeted for, whether the manuals arrived and are usable, whether anyone was trained to fix common faults. A purchase can come in on budget and on time while creating an operation that is expensive, fragile or dependent on a single supplier for years.
This article explains how to treat a purchase as buying the ability to operate, maintain and adapt the equipment over its life, not just the equipment itself. It covers the questions to settle before you sign, how to decide which spares to hold, what documentation and training to require, how to understand and price supplier dependence, and how to compare offers on whole-of-life terms.
What you are really buying
A machine, a production line or a software system is valuable only while it works. What you are really buying is a stream of output over many years, and that depends on more than the equipment. It depends on:
- Maintainability: whether the equipment can be inspected, serviced and repaired practically.
- Parts availability: whether the right spares can be obtained quickly enough.
- Technical knowledge: whether your people, or someone you can reach, know how to fix it.
- Software and data access: whether you can back up, restore, change and update the control software.
- Service capacity: whether help is available within the time your operation can tolerate.
- Documentation: whether drawings, manuals and parameter records exist and are accurate.
- Training: whether operators and maintainers can use and look after it properly.
A useful single question captures all of these: what must remain true after handover for this equipment to keep creating value? The answers belong in the purchase, not in a scramble after the first breakdown.
Common misreadings
- Whole-life cost means price plus maintenance. Whole-life thinking is also about availability, dependence and capability, which may not appear as maintenance costs until something fails.
- Spares and support can be sorted out at commissioning. By then, the commercial leverage of the purchase has gone and the supplier has less reason to offer good terms.
- Proprietary features are just technical details. A proprietary controller, tool or software licence can determine your bargaining power for the life of the equipment.
- The supplier who builds it should support it. That may be right, but it should be a deliberate decision, not a default.
Six areas to settle before you buy
Availability
Start with the operation. How long can the equipment be unavailable before it seriously affects customers, safety or costs? An hour, a day, a week? The answer sets the required response time for support and the level of spares holding. A machine that is the only way to make your main product needs far stronger support arrangements than one with a manual fallback.
Spares
Not every part needs to be on the shelf. Classify spares by three factors: how critical the part is to operation, how long it takes to obtain and how likely it is to fail or wear. A simple rule set:
| Part type | Example | Typical approach |
|---|---|---|
| Critical, long lead time | Control board, servo drive, special gearbox | Hold on site, or agree that the supplier holds one locally for you |
| Critical, short lead time | Standard motor, common sensor | Confirm a local stockist; hold if downtime is very costly |
| Wearing parts | Belts, seals, blades, filters | Hold enough for planned maintenance cycles |
| Non-critical | Covers, panels, cosmetic parts | Order when needed |
Ask the supplier for a recommended spare parts list with prices and lead times as part of the quote, then review it rather than accepting it whole. Suppliers sometimes recommend too much, and sometimes too little. Make sure the list gives manufacturer part numbers for standard components, not only the equipment supplier’s own codes, so you can buy them from other sources if needed.
Skills
Decide what capability must sit inside your business. Operators need to run the equipment safely and handle routine adjustments. Maintainers need to carry out planned maintenance and fix common faults. Some tasks may reasonably stay with the supplier. Specify the training to be delivered, to whom, and how it will be recorded, and consider training one person well enough to train others later.
Supplier dependence
List the activities that only the original supplier can perform: configuring a replacement control board, changing software, recalibrating a special sensor, supplying a unique part. For each, ask how quickly the supplier can respond, from where, and at what cost. Some dependence is unavoidable and acceptable for specialised equipment. The aim is to understand it and price it deliberately, and to reduce it where the cost is low, for example by choosing standard components, a widely supported control platform or a supplier with a local service agent.
Data and documentation
Documentation is easy to request at purchase and hard to obtain afterwards. Consider requiring:
- Operating and maintenance manuals in English, specific to your equipment.
- Electrical, pneumatic and hydraulic drawings as built, not as designed.
- A bill of materials with manufacturer part numbers.
- Backups of control programs and parameter settings, and the right to keep and use them.
- Maintenance schedules and lubrication charts.
- Calibration certificates for measuring devices.
- Safety documentation, including risk assessments and guarding information.
Make delivery of complete documentation a condition of final payment.
Software and licences
Many machines now include software with ongoing costs or restrictions: annual subscriptions, remote access services, licensed programming tools or cloud platforms. Ask what is included, what costs continue after the first year, what happens if you do not renew, how updates are managed, and whether you can access and back up your own configuration and data. Budget for ongoing costs before you buy.
Plan for obsolescence
Equipment often outlives some of its components. Control systems, drives, displays and software versions can stop being supported years before the mechanical parts wear out. Ask how long the supplier expects to support the control system and key components, whether it will notify you before parts are discontinued, and whether it offers upgrade paths. Prefer widely used components where performance allows. When a discontinuation notice arrives, decide promptly whether to buy spares, plan an upgrade or accept the risk.
Bundled or separate support
Some suppliers offer support packages bundled with the purchase, sometimes for several years. These can provide continuity and clear responsibility. They can also create switching costs. Before signing, understand renewal terms, price escalation, what happens at the end of the term, how you can move support to another provider, and how your data and documentation will be returned. These questions are easier to settle while you are still choosing between suppliers.
Check it at handover
Handover is the last point at which the supplier is strongly motivated to complete everything. Use a simple checklist before signing off and making final payment:
- Spares: the agreed initial spares have arrived, are labelled and are stored where maintainers can find them.
- Documentation: manuals, as-built drawings, bill of materials and maintenance schedules are delivered and match the installed equipment.
- Software: program and parameter backups are delivered, tested by restoring them if practical, and stored securely in more than one place, along with any passwords or licence keys.
- Training: operators and maintainers have been trained, with records of who attended and what was covered.
- Support: contact details, response times and escalation steps are written down and known to the team.
- Outstanding items: anything incomplete is listed, with a responsible person and a date.
A handover that is rushed to meet a production date often leaves gaps that take months to close. A short, firm checklist avoids that.
Bring operations into the purchase early
The people who will run and maintain the equipment know things the purchaser may not: which parts fail in similar machines, how long maintenance really takes, which suppliers respond well and what support they can realistically handle themselves. Involve them in writing the requirements and assessing offers, not just at handover. After the equipment is in service, record failures, spare usage and support response, and use that evidence when choosing equipment and suppliers next time.
A worked example
This is an illustration. A small manufacturer is buying an automated packing machine and has two offers. The business estimates that if the machine is down, it can pack by hand at an extra labour cost of about $1,200 per working day. It plans to keep the machine for seven years.
Offer A costs $185,000. It uses a proprietary controller that only the overseas manufacturer can configure. A replacement controller has an eight-week lead time. Software requires a subscription of $6,000 a year from the second year.
Offer B costs $205,000. It uses a widely supported industrial controller, spares are stocked by a local distributor, the local agent can attend within two days, and the program backup and documentation are included. There is no subscription.
The owner assumes, for planning purposes, one controller failure over seven years. For Offer A as quoted, eight weeks is 40 working days of hand packing. The owner also considers Offer A with a spare controller held on site for $9,000, which would cut the outage to about two days. The comparison below is simplified and does not discount future costs.
| Cost over seven years (illustrative) | A as quoted | A with spare controller | B |
|---|---|---|---|
| Purchase price | $185,000 | $185,000 | $205,000 |
| Spare controller | — | $9,000 | — |
| Software subscription, years 2 to 7 | $36,000 | $36,000 | $0 |
| Outage cost from one controller failure | $48,000 | $2,400 | $2,400 |
| Total | $269,000 | $232,400 | $207,400 |
Offer A looked $20,000 cheaper. On a whole-life view, Offer B is the lowest cost, and it also leaves the business less dependent on one overseas supplier. The owner chooses Offer B and writes the documentation, program backups, training and recommended spares list into the order, with final payment linked to their delivery.
The point is not that proprietary equipment is always worse. Sometimes it offers performance nothing else can. The point is that the dependence was made visible and priced before the decision, rather than discovered at the first failure.
How this applies to a small Australian business
Many small Australian businesses buy equipment made overseas, which makes support planning especially important. Practical steps:
- Ask who supports the equipment in Australia, where spares are held and typical response times, and speak to other local users.
- Request a priced recommended spares list with lead times as part of the quote.
- Specify documentation, program backups and training in the order, and link final payment to them.
- Check ongoing software and subscription costs and budget for them.
- Confirm the equipment meets Australian electrical and safety requirements with the supplier and a licensed electrician before it arrives.
- Ask about support life and obsolescence for controls and key components.
- Record failures and support performance to inform future purchases.
The articles on planning the path from supplier to installation and business continuity planning for small businesses cover related preparation.
Signals worth watching
- Equipment entering service without critical spares or a spares plan.
- Manuals and drawings arriving after handover, or not at all.
- Reliance on one technician, especially one overseas.
- Software subscriptions not budgeted beyond the first year.
- Proprietary restrictions discovered after purchase.
- Long outages caused by parts with long lead times.
- Discontinuation notices for key components.
Common mistakes
- Comparing offers on purchase price alone.
- Leaving spares, training and documentation until commissioning.
- Accepting supplier part numbers only, making alternative sourcing hard.
- Not backing up control programs and settings.
- Ignoring ongoing software costs and restrictions.
- Assuming long-term support will be available without asking.
- Excluding maintenance staff from the purchase decision.
Frequently asked questions
How much should we spend on spares? Enough to cover the parts whose failure would cause costly downtime and whose lead time is long, plus wearing parts for planned maintenance. Compare the cost of holding a part with the expected cost of waiting for it.
Should we buy an extended support package? Consider it where downtime is costly and you lack in-house capability. Check what it covers, response times, renewal terms and how you could exit.
What if the supplier will not provide program backups or documentation? Treat that as a significant risk and factor it into your decision. In some cases, it may be a reason to choose a different supplier.
Questions to ask
- What must be available for this equipment to keep running after handover?
- Which tasks can only the original supplier perform, and how quickly?
- Which spares should be on site before commissioning?
- What documentation, backups and training are included, and are they in the order?
- What ongoing software or support costs continue after the first year?
- How long will the controls and key components be supported?
- How would we change support provider if we needed to?
Bringing it together
A purchase is not complete when the equipment arrives. It succeeds when the business can operate, maintain and adapt the equipment reliably over its useful life. Settle availability needs, spares, skills, supplier dependence, documentation and software before you sign. Plan for obsolescence, understand the terms of any bundled support and involve the people who will run and maintain the equipment. Compare offers on whole-life cost and dependence, not just purchase price. Buy the ability to keep the equipment working, not just the equipment.
Source: KEVOS notes. Examples and figures in this article are illustrations, not quotes. This article is general information, not legal or electrical advice.
