Korean startup Tesollo has brought to market a robotic hand weighing 600 grams while delivering 40 Newtons of grip force, addressing weight constraints in humanoid robot development. The hand balances manipulation capability against the power and weight budgets critical for mobile robots.
The design uses a tendon-driven system with one motor per finger controlling multiple joints through mechanical linkages. This approach reduces both weight and component count compared to systems using individual motors for each joint. The hand provides 12 degrees of freedom across four fingers and an opposable thumb.
Force sensors in each fingertip enable adaptive grip strength, allowing the hand to handle objects from fragile electronics to heavier components. The commercial release follows field testing with multiple humanoid robot developers across warehouse, manufacturing, and service applications.
Tesollo targets humanoid manufacturers who need manipulation capability without excessive weight. The market has grown as companies from Tesla to Chinese startups develop commercial humanoid platforms. Each platform requires hands capable enough to justify the key robotic function while staying within weight limits that affect balance and arm motor sizing.
