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Arm > Articulated arm rb-1-1

Unitree Z1

Articulated arm by Unitree Robotics, Hangzhou, CN

The Unitree Z1 is a compact six-axis research arm weighing about 4.5 kg, with harmonic-drive joints, 740 mm reach and roughly 0.1 mm repeatability. It communicates over RS-485/Ethernet, runs from 24 V and offers position and force control with collision detection through an open SDK on Ubuntu. The Air and Pro versions differ in payload (2 kg vs 3–5 kg) and cooling.

Key specifications

Mass
4.5kg
Payload
3kg
Axes
6
Reach
740mm
Repeatability
0.1mm
USD 13,388 at STEMfinity (US), seen 2026-10-28 — 'from' price covering Z1 Air / Z1 Pro; no per-variant price shown
Maker's product page Data record

Versions

Z1 Air4.3 kg, 2 kg payload
Z1 Pro4.5 kg, 3–5 kg payload, higher-performance components, air cooling

All attributes

Arm count1
SegmentResearch, Education
ApplicationResearch platform
EnvironmentIndoor
AutonomyTeleoperated

Looked for but not confirmed on any fetched page: Release year, SDK.

Editor's notes

Unverified (free text): whether Unitree itself still lists the Z1 (vs. D1); mass/payload of the configuration priced. Could not confirm from a fetched Unitree page whether the Z1 is still sold directly or has been replaced by the D1 (unitree.com blocks fetching; RobotShop's Z1 Pro page returned an error). The Z1 is still listed by a US reseller (STEMfinity) with no discontinuation note, so availability is recorded as shipping. mass/payload in attributes are the Z1 Pro figures (payload lower bound). The listing says 'open SDK, Ubuntu' but names no language, so `sdk` is omitted. links.product is the manufacturer URL from the group C pass (not fetched).

Sources

Facts on this page come only from the pages listed above, read on the dates shown. Prices are observations, not offers to sell; check the seller before buying.

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