Used vs Refurbished vs New Industrial Parts: How to Choose

Used, refurbished and new automation parts all have a place in a maintenance budget. The right choice depends on how critical the machine is, how long you can wait, and whether the module is even still manufactured. Here is how experienced procurement teams decide.

Definitions

Used (surplus)	Removed from working equipment or surplus stock; tested for function, cosmetic wear expected. Typically 40–70% below new list.
Refurbished	Used units that have been opened, inspected, repaired or had wear parts replaced, then fully tested and run-in. Typically 30–60% below new list.
New (sealed)	OEM production or authorized channel stock; full OEM warranty. List price, longest lead time for EOL parts.

Decision Matrix

Production-critical, line-down now	Refurbished or tested used	Speed beats price — in-stock used/refurbished ships in 24–48 h
Critical spare, planned maintenance	New if available, refurbished otherwise	Budget-friendly insurance for the next failure
Safety-related loop (E-stop, safety PLC)	New (sealed)	Certification and OEM traceability matter
15+ year-old legacy rack	Used or refurbished, with sourcing plan	The module may be EOL — buy before the last stock disappears
Prototype or test bench	Used	Lowest cost, wear is acceptable

4 Checks Before You Buy

('Ask for the condition grade and photos', "Grade A/B/C with photos beats a vague 'good working condition'")
('Ask what was tested', 'I/O modules: all channels signal-tested. Drives: run with a test motor. CPUs: boot and memory verified')
('Confirm the warranty', 'A 12-month warranty on used/refurbished stock is the market standard — do not accept less')
('Verify the revision before ordering', 'The last group of the MPN is the revision; a mismatch can force a reflash or fail a swap')

FAQ

Are used automation parts a false economy?

Not when they come with a condition grade, test evidence and a 12-month warranty — that combination makes used parts a controlled risk, not a gamble.

What is the difference between used and refurbished?

Refurbished units have been opened, inspected and had wear parts replaced before full testing; used units are tested as-is. Refurbished costs slightly more and is the better choice for high-duty applications.

Can I return a used part if it does not work in my machine?

We verify compatibility before shipping using your nameplate photo. In the rare case of a mismatch on arrival, we exchange it — the 12-month warranty covers in-service failures.