Learning ApproachOfficial claim
Simulation
Kepler RobotForerunner K2 Bumblebee
Price
Unknown
Type
Humanoid Robots · Human-scale Humanoid
Status
Commercial
Availability
On sale
Purchase
Not disclosed
Release Date
May 2025
Country/Region
China
Last Verified
2026-07-31
How classification and status work
Category describes physical structure and function; wheels alone do not determine whether a robot is humanoid. Product stage describes demonstrated maturity. Commercial availability describes current access: a commercial product may still be limited to pilot customers. Neither stage nor availability alone proves that a product can be purchased. Unknown facts remain unknown.
52 DOF
Total degrees of freedom
1.75 m
Height
75 kg
Weight
25–30 kg
General Payload
Kepler Forerunner K2 (Bumblebee) is a mass-produced general-purpose industrial humanoid. The 175 cm, 75 kg biped has 52 DOF, hybrid roller-screw and rotary actuation, 11-DOF dexterous hands, a 25–30 kg dual-arm payload, one-hour charging, and up to eight hours of operation.
1 / 1
Intelligence Profile
Control ApproachOfficial claim
Other control method
Capability Map
MobilityOfficial claim
Walking
Kepler lists complex-terrain walking and whole-body motion planning and control for the Forerunner K2 series.
MobilityOfficial claim
Navigation
The official page describes Nebula visual SLAM for mapping unfamiliar environments and autonomously determining position and movement trajectory.
ManipulationOfficial claim
Grasping
Kepler describes 11-DOF tactile dexterous hands for precision grasping and compliant manipulation in the K2 product page.
Hardware Specification
Physical Specifications
Arm Specifications
Seven joints per arm
Active degrees of freedom
11 degrees of freedom per hand
Locomotion Type
Straight-knee bipedal walking with navigation and obstacle avoidance
Total degrees of freedom
52 DOF
Mobility & Payload
Absolute Position Accuracy
0.01°
Dual-arm Payload
25–30 kg
General Payload
25–30 kg
Peak Joint Output Torque
220 N·m
Walking Speed
Over 1.1 m/s
Mechanical and mounting
Controllable DOF per Arm
7 DOF per arm
Height
1.75 m
DOF per Leg
6 DOF per leg
Weight
75 kg
Mechanical Structure
Actuator Model
Planetary roller-screw, rotary, and micro actuators
Dexterous Hand
Ten-finger tactile dexterous hands; 11 DOF per hand and 25 force touchpoints per finger
Joint Type
Hybrid serial-parallel joint architecture
Sensors
Audio Sensor
Auditory sensor
Camera
Pure-vision system with multiple cameras
Force/Torque Sensor
Six-axis force sensor at each wrist
IMU
Inertial measurement unit
Sensors
Vision, auditory, tactile, six-axis force, and inertial sensing
Tactile Sensor
25 force touchpoints per finger
Vision Sensor
Vision sensors and multiple cameras
Battery and Runtime
Charging Time
1 hour
Runtime
8 h
Compute Platform
AI Compute Module
GPU computing power
AI Compute Claim
100 TOPS
AI Model
Layered VLA+ model for semantic command processing
GPU
100 TOPS GPU
Operating System
Kepler OS
Software Algorithm
Reinforcement and imitation learning for bipedal gait and motion control
Interaction and Communication
Smart Navigation
Autonomous navigation and obstacle avoidance in complex industrial spaces
OTA Update
Supported
Speaker
Speaker
Development and Expansion
Graphic Programming
Supported
Operating Modes
Motion, vision and voice modules; visual programming; multi-robot collaboration; online debugging and OTA
Secondary Development (SDK)
Supported
Swarm Control
Supported
Commercial Information
Availability
Mass production; shipping to customers
Expected Delivery
90 days
Warranty
12 months
Commercial Status
Status
Commercial
Price
Unknown
Release Date
May 2025
Deployment records
Progress, changes and sources from real-world projects.
Pilot
- Partner
- Zhaofeng Motor · Operator
- Scenario
- Manufacturing
- Primary task
- Navigate autonomously on the factory floor and load and unload components on the production line.
- Location
- Zhaofeng Motor production line (city and plant address not disclosed)
- Started
- Undisclosed
- Last verified
- 2026-10-10
Deployment timeline · 1
Kepler reports K2 operating on Zhaofeng Motor's production line
As of the verified evidence; this is not live operating status.2026-10-10
Customer test
- Partner
- 上汽通用汽车 · Operator
- Scenario
- Manufacturing
- Primary task
- Test gap inspection, metal-part loading and coordinated handling
- Location
- Undisclosed
- Started
- Undisclosed
- Last verified
- 2026-10-09
Deployment timeline · 1
K2 completes industrial field-test rounds with SAIC-GM
As of the verified evidence; this is not live operating status.2026-10-09
Related Entities
Dexterous hands
No specific dexterous hand model confirmed.
Timeline
- Robot releaseForerunner K2 Bumblebee
Submit a source or correction