Trossen Robotics · Research robot arm

Trossen ViperX 300 S

Six-axis research arm

Purchase price Price on request (discontinued)

Payload: 750 g (≤50% extension at full load)
Reach: 750 mm
Degrees of freedom: 6
Control: Interbotix SDK, ROS 2, MoveIt
Environment: Indoor labs and classrooms
Best for: Manipulation and robot-learning research

Up close

The Trossen ViperX 300 S is a six-axis tabletop robot arm for manipulation research, teleoperation and robot-learning experiments. It reaches 750 mm, carries up to 750 g, and is built from DYNAMIXEL smart servos with the Interbotix SDK, ROS 2 and MoveIt. Trossen has discontinued the standard model, but it remains common in ALOHA-style setups and labs, and support documentation is still available.

Key features

750 mm reach

A large tabletop work area.

750 g payload

Handles heavier objects than smaller desktop arms.

Six degrees of freedom

Full position and orientation control.

DYNAMIXEL servos

Read position, load, temperature and voltage from every joint.

ROS 2 and MoveIt

Open software with Trossen's Interbotix SDK.

ALOHA ready

Widely used in ALOHA teleoperation and imitation-learning rigs.

Is it right for you?

Good fit if

Manipulation, teleoperation or imitation-learning research
Labs already running ViperX or ALOHA setups
ROS 2 teaching and projects
Open, hackable hardware

Not ideal if

You need a new unit with guaranteed factory supply
Industrial accuracy, safety certification or production uptime

Where it works

Robot-learning research
Teleoperation
ALOHA-style bimanual setups
ROS 2 teaching
Perception and grasping experiments

Specifications

Robot type: Research robot arm
Main purpose: Manipulation and robot-learning research
Operating environment: Indoor labs and classrooms
Availability: Discontinued; used units and ALOHA variants available
Mounting: Tabletop
Payload: 750 g; keep to 50% extension at full load
Reach: 750 mm; 1,500 mm tip-to-tip span
Degrees of freedom: 6
Manipulation: Gripper with interchangeable fingers
Battery / power: 12 VDC external supply
Navigation / control: Interbotix SDK, ROS 2 and MoveIt
Sensors: DYNAMIXEL position, velocity, load, voltage and temperature feedback; optional camera kit

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Pricing

🇺🇸United States

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Questions

Is the ViperX 300 S still sold?

Trossen has discontinued the standard model. Used units, ALOHA kits and replacement parts may still be available, and Trossen offers newer research arms.

How much can it lift?

Up to 750 g. Trossen advises keeping the arm within half its extension when carrying that much.

What software does it use?

Trossen's Interbotix SDK with ROS 2 and MoveIt, with Python and C++ access to the DYNAMIXEL servos.

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