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RobotData — Training the physical world.

© 2026 RobotData · Demo content

Hardware / Single Arm

WidowX 250 S

Trossen WidowX 250 S · Trossen Robotics

Robot profile & datasetsOpen in knowledge graphVendor page
DEGREES OF FREEDOM
6
MASS
4.3 kg
PAYLOAD
0.25 kg
REACH
650 mm
CONTROL RATE
100 Hz
POWER
12 V 10 A supply
RUNTIME
Continuous duty
ONBOARD COMPUTE
Host PC with interbotix_ros_manipulators
INTERFACES
U2D2 USB-to-Dynamixel, ROS 2

Actuators

2

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

Arm joints

×6

Dynamixel smart servo

dual-servo shoulder and elbow

Gripper

×1

Servo parallel jaw

XL430 driven

Motors & drives

2

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

Dynamixel XM430-W350

BLDC-class smart servo

4.1 N·m stall at 12 V, current control

Dynamixel XL430-W250

Smart servo

wrist and gripper

Sensors

3

Observation streams available to a policy running on this platform.

Servo encoders

12-bit absolute

position, velocity, current

Third-person RGB

USB camera

BridgeData V2 recording setup

Wrist RGB

USB camera

optional in Bridge subsets

The arm behind BridgeData V2 and many low-cost manipulation datasets.

Data recorded on this hardware

Resolving related models, datasets and papers…

Single Arm datasets in the catalog

All single arm data Compare other hardware
Representative still for BridgeData V2Real-world Indexed

BridgeData V2

Source: UC Berkeley RAIL

ManipulationSingle ArmKitchen
EPISODES
60K
HOURS
333.9
CAMERAS
4
CC BY 4.05 Hz

RGB Video · Depth · Actions · Robot State +1

Representative still for LeRobot Community SO-100 DatasetsReal-world Indexed

LeRobot Community SO-100 Datasets

Source: Hugging Face LeRobot

ManipulationSingle ArmHome
EPISODES
23K
HOURS
481
CAMERAS
2
Open Source30 Hz

RGB Video · Joint Positions · Actions · Robot State +1

Representative still for DROIDReal-world Indexed

DROID

Source: Stanford IRIS & REAL Labs

ManipulationSingle ArmHome
EPISODES
76K
HOURS
350
CAMERAS
3
CC BY 4.015 Hz

RGB Video · Depth · Joint Positions · Actions +2

Representative still for LIBEROSimulation Indexed

LIBERO

Source: UT Austin RobIn Lab

ManipulationSingle ArmLab
EPISODES
6.5K
HOURS
36.1
CAMERAS
2
Open Source20 Hz

RGB Video · Joint Positions · Actions · Robot State +1