Industrial Robot Arms: What Buyers Should Know
An industrial robot arm is a programmable 4-axis or 6-axis manipulator used for material handling, assembly, machine tending, and welding in factories. Buyers source them from China industrial robot arm manufacturers for payloads from 3kg to 500kg, reaches up to 3,000mm, and ±0.02mm repeatability at competitive cost.
Key specifications are payload, reach, repeatability, and number of axes. Controller compatibility and CE/RoHS compliance matter for integration. The curated suppliers below are screened against these criteria.
Curated Suppliers — Industrial Robot Arms
7 Checks Before Choosing a Industrial Robot Arms Supplier
1. Payload
Choose a rated payload above your heaviest tool plus part weight.
2. Reach
Match arm reach to your work envelope and cell layout.
3. Repeatability
±0.02-0.05mm repeatability is standard for precision assembly and handling.
4. Axes
6-axis arms offer full orientation; 4-axis arms suit pick-and-place at lower cost.
5. Controller
Confirm controller compatibility with your PLC and vision systems.
6. Speed & cycle
Check cycle time and speed ratings against your throughput target.
7. Certification
Confirm CE and RoHS compliance for your target market.
Frequently Asked Questions
How many axes does an industrial robot arm need?
Six-axis arms give full orientation for welding and assembly; four-axis arms suit simple pick-and-place.
What is repeatability in robot arms?
It is how precisely the arm returns to a taught point, typically ±0.02-0.05mm on quality models.
What payload should I choose?
Choose a rated payload comfortably above your heaviest tool plus workpiece, with safety margin.
What is the MOQ for industrial robot arms?
Standard units often start at 1-5 units; OEM integration projects start higher. See each supplier profile.