Wuzhou New Spring

Wuzhou New Spring is a leading Chinese manufacturer of inverted planetary roller screws, a critical component for the high-torque hip and knee joints of humanoid robots. The company is expanding internationally with a new factory in Thailand to meet growing demand.

Planetary roller screws convert rotary motor motion into the precise linear force required for the load-bearing leg joints of bipedal humanoid robots, and Wuzhou New Spring's inverted roller-screw design is particularly well suited to the packaging constraints and force requirements of hip and knee actuators. The company emerged as a notable supplier in the humanoid component ecosystem as robot OEMs began specifying roller screws over ball screws for their superior load capacity, stiffness, and durability under the dynamic loading conditions of walking robots. Investor interest in Wuzhou New Spring grew sharply through 2025 as humanoid robot programs accelerated, reflecting the market's recognition of roller-screw suppliers as a critical bottleneck in the supply chain. The construction of a Thailand factory signals the company's intention to scale internationally and reduce customer concentration risk by moving production closer to diversified manufacturing bases.

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