- Industrial-Class B2 Chassis Approximately 1098 x 450 x 645 mm standing and approximately 60 kg with battery — the heavy end of Unitree's quadruped range rather than an education-sized platform.
- Walking Load Above 40 kg Carries above 40 kg while walking and supports at least 120 kg standing, leaving real margin for a fire and rescue sensor package on top of the robot's own mass.
- 45 Ah / 2250 Wh Battery A large onboard pack sized for sustained reconnaissance and inspection runs rather than short demonstrations.
- Speed Above 6 m/s Unitree lists the B2 family at above 6 m/s, fast enough to cover ground on approach and reposition quickly during an incident.
- Approximately 360 Nm Joint Torque High joint torque is what allows a loaded quadruped to climb, recover and hold posture on broken or unstable footing.
- -20°C to 55°C Operating Range A wide stated operating temperature range covering cold outdoor deployment through hot ambient conditions.
Description
The Unitree B2 Fire Rescue Quadruped Robot Dog is the fire and rescue configuration of the B2, identified by the SKU B2-XF2-B. The B2 sits at the heavy end of Unitree's quadruped portfolio, which runs from compact education robots through inspection-focused platforms to industrial systems of this class. Quadrupeds are chosen for this kind of work because they combine mobility and stability with the ability to carry sensors through stairwells, rubble, gratings and confined spaces where a wheeled robot struggles.
Unitree's confirmed figures for the B2 family give the platform its working envelope: approximately 1098 x 450 x 645 mm standing, approximately 60 kg with battery, a 45 Ah / 2250 Wh battery, walking load above 40 kg, standing load of at least 120 kg, an operating range of -20°C to 55°C, speed above 6 m/s and joint torque of approximately 360 Nm.
Those numbers are what make a fire and rescue fit-out realistic. A walking load above 40 kg leaves genuine margin for a thermal and optical sensor head, gas detection, lighting, comms and a payload mount on top of the robot's own mass, and the 2250 Wh pack is sized for the endurance that reconnaissance work needs rather than for a short demonstration. The XF2-B designation identifies the intended package; the exact sensor head, mounting, controller and accessory set are validated against the SKU at quotation rather than assumed from the family name.
Beyond fire and rescue, teams put B2-class quadrupeds to work on inspection routes, teleoperation, mapping, security review and pilot programmes, and universities and AI labs use them for motion planning, perception and embodied AI research. Integrators typically combine the robot body with cameras, LiDAR, controllers, compute modules, grippers, charging equipment and custom software, so a complete quotation should define the robot, the options, the support scope, the destination and any compliance requirements together.
Every unit is sourced new through established distribution channels and arrives with the full manufacturer warranty. Robotix Market ships worldwide; after-sales support is coordinated with Unitree's service network, and no on-site installation or commissioning is included.
Features
Specs
| Brand | Unitree |
|---|---|
| Model | B2 Fire Rescue Quadruped Robot Dog (B2-XF2-B) |
| Standing Size | Approx. 1098 x 450 x 645 mm |
| Weight | Approx. 60 kg with battery |
| Battery | 45 Ah / 2250 Wh |
| Walking Load | Above 40 kg |
| Standing Load | At least 120 kg |
| Maximum Speed | Above 6 m/s |
| Joint Torque | Approx. 360 Nm |
| Operating Temperature | -20°C to 55°C |
Industries
Frequently Asked Questions
It is a fire and rescue configuration of Unitree's industrial B2 quadruped, used to carry sensors into environments that are hazardous or hard to reach for people — reconnaissance ahead of a team, hot-zone observation, confined-space and stairwell access, and post-incident inspection. The same platform is also used for routine industrial inspection, teleoperation, mapping and security patrols.
Unitree lists the B2 family at a walking load above 40 kg and a standing load of at least 120 kg, on a robot that weighs approximately 60 kg with its battery. That is what makes a substantial sensor and lighting package practical rather than marginal.
The B2 family uses a 45 Ah / 2250 Wh battery and Unitree states an operating range of -20°C to 55°C. Runtime in service depends on payload, terrain, speed and ambient conditions, so we confirm expected endurance for your payload at quotation.
This configuration is supplied on a quotation basis, so pricing is provided on request rather than published. Cost varies with the fire and rescue payload selected, accessories, fleet size, destination, customs requirements and support scope — send us your requirement through the product page and we will confirm a delivered figure and lead time.
The robot is sourced new through established distribution channels and arrives with the full manufacturer warranty. Robotix Market ships worldwide and coordinates after-sales support with Unitree's service network. On-site installation and commissioning are not included.
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