K2 Forerunner
In-house planetary roller-screw actuators.
hopefully coming soon
Illustrative only. Real financing terms depend on unit, buyer profile, and maker's approved lender network.
In-house planetary roller-screw actuators.
K2 'Bumblebee' uses Kepler's hybrid serial-parallel actuation — planetary roller-screw linear motors paired with rotary joints — to hit high torque inside a low-cost frame, with an eight-hour runtime. Revealed at GITEX 2024, it entered customer testing at the SAIC-GM plant in Shanghai from April 2025, and Kepler announced the start of mass production and customer shipments in September 2025 at 248,000 yuan (about $35,000) per unit, with framework agreements covering several thousand units. It carries 52 body degrees of freedom, 11-DoF rope-driven hands (96 tactile points per fingertip), and a dual-arm payload of up to 30 kg.
- ◆In-house planetary roller screws (hybrid serial-parallel)
- ◆~8-hour continuous runtime, up to 30 kg dual-arm payload
- ◆Mass production + shipments began Sept 2025 at ~248,000 yuan (~$35k)
- ◆52 body DoF; customer testing at SAIC-GM since 2025
Kepler engineers its own planetary roller-screw actuators to squeeze industrial-grade torque into a lightweight humanoid frame. Forerunner K2 targets warehouse and factory work.
K2 Forerunner in motion
Also in industrial
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