Run the Provenance Test
The used market is real and the savings can be substantial. What varies enormously is what you are actually receiving alongside the hardware.
The Bot Scout provenance test asks five questions before price: what application did this robot run and for how many hours, does the controller software have a transferable licence, is the controller generation still supported by the builder, are spare parts still manufactured, and does documentation and backed-up program memory come with it.
An arm is mechanically durable and a controller is not. Obsolete controller generations, expired software licences, and lost program backups are the failures that turn a bargain into scrap, and none of them are visible in a photograph.
| Check | Good outcome | Warning sign | Consequence if ignored |
|---|---|---|---|
| Application history | Documented hours and duty cycle | Unknown prior use | Wear you cannot assess |
| Controller support | Generation still supported | End-of-life controller | No parts, no software updates |
| Software licences | Transferable in writing | Licence tied to prior owner | Cannot legally run the software |
| Spare parts | Still manufactured | Parts only from breakers | Downtime measured in weeks |
| Documentation and backups | Supplied with the robot | None available | Reprogramming from scratch |
| Safety assessment | New application assessed | Assumed to carry over | Non-compliant installation |
When Used Makes Sense
Used equipment fits a stable, well-understood task where your team already has robotics capability, spares are available, and the cell design is not software-dependent. That combination is common in established manufacturing and rare in a first project.
A first automation project is the worst case for used equipment, because the buyer cannot yet distinguish a good arm from an expensive problem. If it is your first cell, the integrator relationship matters more than the saving — see the industrial robots for sale guide.
Software-dependent fleet systems are the riskiest used purchase of all, since licences and fleet software may not transfer with the hardware, as noted in the warehouse robots for sale guide.
- Require documented application history and running hours.
- Confirm the controller generation is still supported.
- Get software licence transferability in writing.
- Check spare-part availability before agreeing a price.
- Budget a new safety assessment for the new application.
Safety Does Not Transfer
A safety assessment covers an application, not a machine. Installing a used robot in a new cell requires a new assessment regardless of how it was certified at its previous site — ISO 10218-1:2025 sets the robot safety requirements.
OSHA notes that many robot incidents occur during programming, setup, adjustment, testing, and maintenance, which is exactly the phase a used installation spends most time in.
Budget refurbishment honestly: cables, seals, batteries, belts, and grease all age. A robot that has sat unpowered for a long period may also have lost its program memory, which is a cost rather than an inconvenience.
Bottom Line
A used industrial robot is sound when history, controller support, licences, and parts are documented. Budget a new safety assessment and refurbishment, and avoid used equipment for a first project.
Confirm controller support and licence transferability in writing before agreeing any used-robot price.
FAQs
Are used industrial robots worth buying?
They can be, for a stable well-understood task where your team has robotics capability, spares are available, and the controller generation is still supported by the builder.
What is the biggest risk with a used robot?
The controller rather than the arm. Obsolete controller generations, non-transferable software licences, and missing program backups are what turn a bargain into scrap.
Does a used robot's safety certification transfer?
No. Safety is assessed per application, so installing a used robot in a new cell requires a new assessment regardless of its previous certification.
Should a first automation project use second-hand equipment?
Usually not. A first-time buyer cannot easily distinguish a sound arm from an expensive problem, and the integrator relationship matters more than the saving.