Choosing between two used industrial robotic arms for your automation bench, especially in the industrial robotics cobots space, comes down to one practical question: how much of the control and wiring work are you ready to take on? The Annin AR3 and the Scorbot ER VIII are both listed as robotic arm assemblies in for-parts/not-working condition, but they arrive with different pieces of the puzzle. Here's how to decide.
#### Quick Verdict
The Scorbot ER VIII is the lower-priced arm here. The Annin AR3 brings a different hardware package. Which one fits your project depends on whether you want to do the re-wiring or bring your own controls.
#### At a Glance
| Product | Listed Price | Condition | Price Bar |
|---|---|---|---|
| Annin AR3 (with Control Box) | USD 750.00 | For parts or not working | |
| Scorbot ER VIII | USD 450.00 | For parts or not working |
#### Where Each Product Wins
- Annin AR3: The description says the arm was functioning before all wiring was removed, and all commercial components are present and assembled except wiring.
- Scorbot ER VIII: The description says the unit came from a working micro-electronics assembly environment.
Annin AR3

The Annin AR3 is the higher-priced product in this pair, at USD 750.00. The product title includes a control box, and the attribute list names the robotics controls type as a motion controller. The description says the arm was functioning before all wiring was removed, and all commercial components are present and assembled except wiring, with only a few hours of operation. You'd need to complete the wiring using the setup guide, and the description notes it's sold as is. If you're looking for an assembled robotic arm with a control box named in the title and you don't mind handling the wiring, this is the side to weigh.
Scorbot ER VIII

The Scorbot ER VIII is priced at USD 450.00. The description says the unit came from a working environment and was used for micro electronic assembly. The computer and controller were not on site at the time of decommissioning, and no serial plate was found on the arm. That makes it a candidate for a project where you supply the control hardware yourself. If your plan is to bring your own controls and keep the upfront price as low as possible, this unit gives you a starting point in the industrial robotics cobots space.
#### Final Choice by Use Case
Pick the Annin AR3 if you want the control box and motion controller included in the product title and you're prepared to re-wire the arm according to the setup guide. Pick the Scorbot ER VIII if you're building your own controls path and want the lower listed price.