Unitree Z1

Overview

The Unitree Robotics Z1 is a 6-axis robotic arm priced at $15,999, designed for mounting on the Unitree B2 quadruped robot or for fixed-base deployment as a desktop manipulation arm. The Z1 represents a bridge between Unitree's mobile robot platforms and manipulation capability, enabling the B2 quadruped to interact with its environment through a capable arm rather than relying solely on its locomotion. As a standalone fixed arm, the Z1 offers competitive specifications in the sub-$20,000 cobot category.

Key Specifications

• Axes: 6
• Target integration: Unitree B2 quadruped (or fixed base)
• Price: $15,999
• Interface: ROS compatible, SDK available
• End effector: Compatible with standard interfaces

The Z1 uses a direct-drive actuation approach that provides back-drivability, making it suitable for force-sensitive tasks and physical human-robot interaction scenarios. ROS support allows integration with the broader open-source manipulation ecosystem, including MoveIt for motion planning.

Use Cases

Research teams working on mobile manipulation, quadruped-arm systems, and field robotics applications are the primary users of the Z1. Mounting the Z1 on the B2 quadruped creates a mobile manipulation platform capable of traversing unstructured terrain while carrying and deploying the arm for inspection, sample collection, and light manipulation tasks.

As a fixed-base arm, the Z1 is used in research laboratories exploring compliant manipulation, force control, and learning from demonstration. UK universities with existing Unitree B1 or B2 platforms are natural adopters, as the Z1 integrates directly with Unitree's hardware and software ecosystem.

Buying Used

A very limited secondary market exists. The Z1 is a relatively recent product and most units remain with their original research or development owners. Contact Unitree UK distribution for availability of any factory-refurbished units.

Alternatives to Consider

• Kinova Gen3 for a well-supported 7-axis research arm with strong torque sensing
• Elephant Robotics Mercury A1 for a 7-axis alternative at a similar price point
• Hello Robot Stretch for a mobile manipulation alternative with a different design philosophy