The Unitree H2-D Ultimate J is one of the lettered Ultimate packages of the H2-D, Unitree's wheeled dual-arm humanoid. Unitree develops the H2-D's hardware and software in house, from the actuators and force-controlled joints to the motion-control algorithms, and the mechanical specification reflects that.

The joints use low-inertia, high-speed inner-rotor permanent-magnet synchronous motors on industrial-grade cross-roller bearings, and the arm joints reach a maximum torque of 120 N·m. Each 7-DoF arm carries about 7 kg rated and 15 kg peak, a figure that varies with how far the arm is extended, and reaches about 0.6 m without the hands. The structure combines aerospace-grade aluminium, titanium alloy and high-strength engineering plastics, and the robot is air-cooled.

Without the hands the body has 20 degrees of freedom: seven in each arm, one in the waist (0–115° pitch), two in the head, one in the lift column, which sets the height between 1200 and 1700 mm at up to 200 mm/s, and two in the servo-driven chassis, which reaches 1.5 m/s and turns within about 0.75 m. A LiDAR, a depth camera, collision and ultrasonic sensors guide it, and a 48 V, 30 Ah (1.44 kWh) battery runs it for about 5 hours.

The Ultimate packages share this body and differ mainly in their hands. The hand model of the Ultimate J, with its degrees of freedom and wrist cameras, is confirmed in writing on your quotation; the product photo shows the H2-D with two-finger grippers. The H2-D Flagship and the H2-D Standard are listed separately.

Key Capabilities

• Unitree's own joints: Actuators, force-controlled joints and motion-control algorithms are all developed by Unitree.
• 120 N·m arm joints: Low-inertia inner-rotor PMSM motors on cross-roller bearings drive arms that carry about 7 kg rated and 15 kg peak.
• 20 degrees of freedom in the body: Seven sit in each arm, one in the waist, two in the head, one in the lift column and two in the chassis.
• Aluminium and titanium structure: The body is built from aerospace-grade aluminium, titanium alloy and high-strength engineering plastics.
• Servo-driven chassis: Dual-wheel differential drive moves the robot at up to 1.5 m/s and turns it 360° in place.
• Hands confirmed on the quotation: The hand package of the Ultimate J is specified in writing before you order.

Buying through Robotix Market

This unit is sourced new through established distribution channels and ships worldwide with the full manufacturer warranty. Technical support is coordinated with the manufacturer's own service network. Deployment scope, configuration, and commissioning responsibilities are agreed as part of the quotation — on-site installation is not included in the product price.