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Unitree Z1 is designed for a wide range of tasks where mobility and precision are key. In logistics and warehouses, it enables "pick-and-place" operations on mobile platforms. In industrial production, it serves for the assembly of lightweight components and machine tending. Due to its open architecture, it is indispensable in research institutes for developing manipulation algorithms and in "New Retail" scenarios for automated service and customer interaction.
The Z1 is not just a static arm; it was developed specifically for integration onto quadruped robots (such as Unitree Aliengo and B1) and other mobile vehicles (AGV/AMR). With its compact design and standardized interface, it allows mobile robots to not only observe but physically interact with the environment – opening doors, pressing buttons, or carrying cargo on challenging terrain.
The robotic arm boasts 6 degrees of freedom (6 DOF), allowing it exceptional flexibility and reach from various angles. Each joint uses high-precision harmonic reducers and industrial cross-roller bearings. This ensures smooth movement, high torque (up to 33 N·m at the base), and minimal backlash (~6 arcmin), which is crucial for precise operations.
For safe collaboration between humans and robots (collaborative work), the Z1 is equipped with a collision detection system. Advanced algorithms and torque feedback allow the arm to stop immediately or adjust force in case of unexpected contact. Support for "Joint Force Control" ensures force control precision up to ~0.2 N·m, protecting both the robot and its surroundings.
Unitree Z1 stands out for its lightweight construction. The arm itself weighs only about 4.3 kg (depending on the version), yet it provides an impressive payload capacity. The Z1 Air version lifts up to 2 kg, while the more powerful Z1 Pro version handles loads up to 3 kg (even more under certain conditions). This favorable ratio is ideal for mounting on smaller mobile platforms where every kilogram matters.
Despite its compact size, the Z1 is an extremely agile device. The maximum joint rotation speed reaches up to 180°/s, enabling fast cycle times in production processes. The arm can perform complex movements within its working range (740 mm reach) with high repeatability (~0.1 mm), ensuring consistency in repetitive tasks.
Unitree Z1 is a true platform for developers ("Open Programming Interface"). It supports programming in C++ and is fully compatible with ROS (Robot Operating System). Users have access to low-level and high-level commands, including torque, position, and speed control for each individual joint, enabling the development of custom kinematics and control solutions.
The end of the arm (flange) allows for quick changes of various effectors – from electric grippers and suction cups to screwdrivers and cameras. The arm communicates via a reliable Ethernet interface and uses RS485 for internal communication. It is powered by a standard 24V source, facilitating integration into existing industrial systems.
| Model | Unitree Z1 (Air / Pro) |
| Degrees of Freedom (DOF) | 6 axes |
| Arm weight | 4.1 kg (Air) / 4.3 kg (Pro) |
| Payload | 2 kg (Air) / ≥3 kg (Pro) |
| Maximum reach | 740 mm |
| Repeatability | ~0.1 mm |
| Power supply | 24V DC, current >20A (Max. power 500W) |
| Communication interface | Ethernet (UDP) |
| Internal bus | RS485 |
| Operating system | Ubuntu (ROS support) |
| Control modes | Position control, Force Control |
| Force control precision | ~0.2 N·m |
| Maximum joint speed | 180°/s (all joints) |
| J1 movement range | ±150° |
| J2 movement range | 0 to 180° |
| J3 movement range | -165° to 0° |
| J4 movement range | ±80° |
| J5 movement range | ±85° |
| J6 movement range | ±160° |
| Reducers | Harmonic reducers (ratio 60+) |
| Housing material | Aluminum alloy, composites |
| IP protection | IP54 (basic protection against dust and splashing) |
Ships within 48 hours · Estimated delivery Aug 18 - Aug 23
US$40
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