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Kepler K2 Bumblebee

Kepler Robotics · ChinaChina

Shanghai factory humanoid in mass production, with 30 kg two-arm lifts and 8-hour shifts.

K2 “Bumblebee” is Kepler’s industrial humanoid. It stands 175 cm, weighs 75 kg, and mixes planetary roller screw actuators with rotary joints. Kepler says it walks with a straight-knee gait and runs up to 8 hours on a 1-hour charge.

Kepler announced mass production and shipping in September 2025 at RMB 248,000 per unit. At ICRA 2025 it quoted the base model at $30,000. The full build has 52 degrees of freedom; the basic build has 30.

Specs

Height
175 cm
Weight
75 kg
Degrees of freedom
52. Basic build 30
Payload
15 kg per arm. 30 kg with both arms
Runtime
Up to 8 hours on a 1-hour charge
Compute
100 TOPS
Sensing
More than 80 sensors
Actuators
Planetary roller screw and rotary

Quoted from Kepler K2 product page · Kepler K2 at ICRA 2025 · Kepler K2 mass production.

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