Guide

What to check before buying a used industrial robot arm

RoboResale

Used arms cost a fraction of new ones, but most listings hide the price and leave out what matters. A checklist for FANUC, KUKA, ABB and Yaskawa buyers.

An orange KUKA industrial robot behind glass at a trade show stand
Photo: Globetrotter19, CC BY-SA 3.0, via Wikimedia Commons

A new industrial arm costs about US$50,000–80,000, or US$100,000–150,000 as a full system. Used, the same class of robot often sells for US$6,000–40,000. A 2019 FANUC M-20iA/35M with its R-30iB Plus controller was listed at US$32,000, and a 2017 KUKA KR 6 R700 at €6,000.

Supply is growing. About 188,000 industrial robots left service in 2025, and with a typical 12-year service life, retirements should roughly double by 2029. Yet about 70% of used listings show no price at all.

Before you buy

  1. The controller. Make sure the arm comes with its own, and note its generation, such as R-30iB, KRC4, IRC5 or YRC1000.
  2. The teach pendant and cables. Auction units often arrive without pendants, cables or controller keys, and replacements add up fast.
  3. Software options and a backup. Options such as vision or palletising live on the controller, and without a backup they can be lost.
  4. Hours and service history. Ask for the hour counter and any gearbox or battery work.
  5. Payload and reach. Check both against your job, with some margin.
  6. A test video. Ask to see the arm run a program through all six axes.

Ask for the price

A missing price isn't a good sign. Ask for one in writing, with everything that's included, before you travel or pay for an inspection.

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