R1

OceanTrix Robotics in Shenzhen builds the R1 as a heavy-duty metal hand: the structure is aviation-grade aluminium with food-safe plastic, and the motors sit inside the hand to drive six degrees of freedom across five fingers.

The maker quotes a 30 kg load for the whole hand and 6 kg per finger, 30 N of finger force, a thumb-to-index opening of 0 to 113 mm and a full opening time of 0.8 s. Thirteen touch sensors are offered as an option rather than fitted as standard.

Communication runs over RS-485, CAN FD or Modbus-RTU, and the supply range is 9.5 to 28 V. The Python and C++ SDK works with a control cycle of 10 ms or less and 0.1 mm accuracy. The weight is not published. Intended fields are industry, research and humanoids; the price is on request.

The smaller R2 from the same family adds EtherCAT but trades down to 20 kg and 20 N, while RH56DFX is a widely used six-axis competitor.