Hardware / Dual Arm

ALOHA 2

Bimanual ViperX 300 station · Trossen Robotics / Stanford + Google DeepMind

DEGREES OF FREEDOM
12
PAYLOAD
0.75 kg
REACH
750 mm
CONTROL RATE
50 Hz
POWER
Mains powered station
RUNTIME
Continuous duty
ONBOARD COMPUTE
Workstation with 2 arms + 4 cameras
INTERFACES
USB serial to 4 arms, ROS

Actuators

3

Joints and end effectors that produce the action vector recorded in datasets.

Follower arms

×2

ViperX 300 6-DoF

750 g payload each

Leader arms

×2

WidowX 250 6-DoF

teleoperation masters

Grippers

×2

Low-friction parallel jaw

redesigned in ALOHA 2 for fine insertion

Motors & drives

2

The drive units inside those joints, with torque and reduction details.

Dynamixel XM540-W270

Smart servo

10.6 N·m stall, shoulder/elbow

Dynamixel XM430-W350

Smart servo

wrist joints

Sensors

4

Observation streams available to a policy running on this platform.

Wrist cameras

RGB

2 × 640×480 @ 50 fps

Top camera

RGB

overhead scene view

Low camera

RGB

table-level view for insertion

Joint states

Servo encoders

14-dim action vector at 50 Hz

Bimanual teleoperation station used for ALOHA, Mobile ALOHA and ALOHA Unleashed datasets.

Data recorded on this hardware

Resolving related models, datasets and papers…