Chaifu's CR5000-3700 claims a 5-ton payload record at CIIF. Will it work on real lines?

In short: A Chinese maker claims the heaviest-lifting industrial robot yet: 5,000.36 kg rated payload with a 3,700 mm reach.

What's inside

• Self-developed large RV reducer, a three-motor drive for a single axis, and a cast-steel body.
• Chaifu makes its own reducers, servo motors and controllers.
• Its control system spans robots from 7 kg desktop units to 6,000 kg heavy-duty machines, with EtherCAT, PLC logic, laser seam tracking and multi-pass welding.

Who it's for

Nuclear power, rail transit, large equipment and heavy new-energy components, where moving huge workpieces today needs cranes, fixtures and manual coordination.

Why it matters

Chinese robot makers are moving up into heavy, high-value segments long led by Japanese and European firms. But as TechNode notes, a payload record is a starting point: long-term stability, accuracy, maintenance cost and customer adoption decide commercial value. Chaifu says the 5-ton rating is meant for continuous production, not a one-off stunt.