CHOHO Hand
5 000 USD
Choho Industrial (Qingdao Choho Industrial Co., Ltd., 青岛征和工业股份有限公司)
Dex3-1 is Unitree’s three-finger force-controlled dexterous hand for the G1 humanoid. It offers 7 DoF from miniature brushless motors, 33 tactile pressure sensors and force-position hybrid control for sensitive, precise manipulation and data collection.
Hand Score
8
Specifications and details:
| Availability | In production |
|---|---|
| Degrees of freedom, hands | 17 |
| Strength [kg] | 40 |
| Weight [kg] | 0.715 |
| Size | 213.6 × 171.5 × 50 mm |
| Number of fingers | 5 |
| Tactile/Force Sensors | Optional fingertip force sensors: normal force Fz 0–25 N, shear force Fxy ±10 N, 0.1 N minimum detectable force |
| Motor tech | 7 electric actuators driving micro roller chains (1.905 mm pitch) and sprockets; 95–98% transmission efficiency |
| Main structural material | N/A |
| Manufacturer | Choho Industrial (Qingdao Choho Industrial Co., Ltd., 青岛征和工业股份有限公司) |
| Nationality | China |
| Website | https://chohogroup.net |
Description
CHOHO Hand (臻手) is a chain-driven, five-finger dexterous hand from Choho Industrial (征和工业), a Chinese chain manufacturer based in Qingdao. Choho has made industrial chains for about 30 years. It launched the CHOHO Hand in January 2026 as the world’s first chain-driven dexterous hand. Instead of tendons or linkages, tiny roller chains and sprockets move the fingers. As a result, the hand transfers power very efficiently and handles heavy loads with high precision.
2026 Humanoid Robot Market Report
Interested in the CHOHO Hand? Download 198 pages of exclusive insight from global robotics experts — uncover funding trends, technology challenges, leading manufacturers, supply chain shifts, and surveys and forecasts on future humanoid applications.
humanoid expert
Choho describes the hand as an “octagon warrior,” strong in eight areas at once. For example, it carries heavy loads, resists impacts and works reliably for millions of cycles. In addition, it resists wear, fire, rust and corrosion, and the chain design spreads out the force of sudden knocks. The hand can grasp odd-shaped parts, assemble small components and organize cables. Therefore, it suits factories, sorting lines, medical work and harsh environments, and robot makers such as AgiBot and ROKAE already use it.
Download the Humanoid Robot Market Report here
Website: https://www.chohogroup.com/pro/lslqs/zs/zspt/cs.jhtml
