When you're shopping in the industrial robotics cobots space for a used robotic arm, the first decision is whether to pay more for an arm that includes its control hardware or save money with an arm-only unit. The right choice depends on whether you already own robot control hardware or want it bundled into the purchase. This head-to-head compares two robotic arm assemblies: the Annin AR3 and the Scorbot ER VIII. The Annin is the more complete package; the Scorbot is the arm assembly without its controller.
Quick Verdict
If you need a robotic arm assembly that includes its controls, the Annin AR3 at $750 is the listed choice. If you want the lower-priced arm assembly and have your own control setup, the Scorbot ER VIII at $450 is worth a close look. The listed price spread between them is $300. Both are listed for parts or not working, so treat them as project bases rather than plug-and-play units.
Comparison Table
| Feature | Annin AR3 | Scorbot ER VIII |
|---|---|---|
| Brand | Annin | Scorbot |
| Model | AR3 | ER VIII |
| Listed price | USD 750.00 | USD 450.00 |
| Condition | For parts or not working | For parts or not working |
| Controls | Motion controller with control box | Controller not on site |
| Price bar |
Where Each Product Wins
- Annin AR3 wins when you want a more complete package with the control hardware included. All commercial components are present and assembled except wiring; the buyer completes the wiring per the setup guide. The unit had only a few hours of operation.
- Scorbot ER VIII wins on the lower listed price for builds where you already have a controller or plan to source one separately. This arm came from a working environment and was used for micro electronic assembly. The computer and controller were not on site at decommissioning, so you'll need to bring your own control hardware.
Product Notes
Annin AR3
The Annin AR3 is the option that bundles the arm with its motion controller and control box. The listed robotics controls type is Motion Controller, so you don't have to hunt for the right controller separately. The unit was functioning before all wiring was removed; all commercial components are present and assembled except wiring, which the buyer must complete using the setup guide. Only a few hours of operation were logged. That makes this a self-contained starting point for a robot arm project, but the required wiring work means you should be comfortable with hands-on assembly and troubleshooting.
Scorbot ER VIII Industrial Robotic Arm Assembly
The Scorbot ER VIII is the lower-priced arm assembly in this comparison. It 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, so the arm is not paired with its controls. You'll need to supply your own control setup if you want to run it. The model is ER VIII, and no serial plate was found on the arm. For builders who already have a compatible controller or want to keep the initial investment low, this is the starting point for a project build.
Final Choice by Use Case
- Go with the Annin AR3 if you want the bundled control hardware and you're ready to complete the wiring per the setup guide.
- Go with the Scorbot ER VIII if the lower listed price matters more and you already have a controller or plan to add one separately.
Both are project units rather than plug-and-play robots, so plan for assembly and testing time.
