Unitree B2 Fire Rescue Quadruped Robot Dog (B2-XF2-F)

In a burning warehouse, the hardest metres to cover are the last ones: the stretch between the safe line and the seat of the fire, where heat, smoke and falling material decide how close a crew can work. The Unitree B2 Fire Rescue Quadruped Robot Dog (B2-XF2-F) is built to cover that stretch instead of a person. It walks on four legs into ground that would stop a cart, carries a water and foam cannon with a long reach, and plots its own route with a laser map, so the people directing it can stay where the air is still breathable.

Robots Europa, based in Dublin, sells and supplies the Unitree B2 Fire Rescue Quadruped Robot Dog (B2-XF2-F) to fire services, industrial operators and research organisations across the European Union and the DACH region. Robots Europa prepares each quotation for the exact configuration, arranges delivery to the customer's site and provides support after handover, so that a brigade or plant safety team deals with a single European contact from first enquiry to operation.

Background

Unitree Robotics and the B2 platform

Unitree Robotics is known for legged robots that span education, research and industrial work. The B2 is the heavy, industrial member of its quadruped family: a platform designed to carry equipment, cope with rough ground and keep working in weather and dust. The fire rescue series takes that base robot and equips it for one of the most demanding environments in which a machine can be deployed. Buyers who need the platform for other duties, such as inspection or research, can compare it with the standard Unitree B2 quadruped robot and the wider Unitree B2 range.

From industrial quadruped to fire apparatus

The fire rescue model is deeply integrated into fire rescue applications and supports modular functions and replacements. In practice, that means the robot is treated as a carrier for mission equipment rather than as a single-purpose machine. The central piece is a water cannon with a body-compensated angle: the robot's own posture is taken into account as the cannon pitches, which matters on uneven rubble or a slope. The joint performance of this robot dog has increased by 170%, which is what allows a legged machine to carry and steady firefighting equipment while it moves.

Technical Specifications

Specifications are as published by the manufacturer and are confirmed against the datasheet at quotation.

The manufacturer has not published the weight, the Wi-Fi and Bluetooth versions on the fire variant, the maximum jump distance for the fire variant or the hose connection specification; these are confirmed at quotation.

What does the XF2 designation add?

Unitree's fire rescue robots appear under several designations, and the letters carry a practical meaning. Models designated XF2 or F2D include the Laser SLAM kit for autonomous navigation, whereas models marked XF1 or F2 without the D are delivered without SLAM navigation. The B2-XF2-F belongs to the XF2 group, so laser-based mapping and localisation are part of the package.

For a fire service, this is more than a convenience. Smoke degrades camera images quickly, and an operator steering by video alone can lose orientation inside a large building. A laser map gives the robot a geometric picture of its surroundings, allowing it to hold a route, return along a known path and reach a position from which the cannon can work. Combined with the 3D-LiDAR, the depth cameras and the optical cameras of the B2 base robot, the XF2 configuration is aimed at teams that expect to operate out of line of sight. Buyers who will always keep the robot in direct view, for example in training-ground demonstrations, may discuss an XF1 or F2 configuration with Robots Europa instead.

Why send a legged robot rather than a tracked one into a fire?

Tracked and wheeled firefighting robots have served brigades for years, and they remain a sound choice on open, level ground. The argument for a quadruped begins where the ground stops being level. Collapsed shelving, kerbs, debris fields, stairwells and steep ramps are common at fire scenes, and a legged machine steps over or onto them rather than having to find a way round. The B2 base robot climbs stairs of 20-25 cm continuously and handles a climbing angle of 45°, which brings upper floors, mezzanines and embankments within reach.

Endurance and robustness complete the case. With a 45 Ah (2250 Wh) battery, the base robot covers more than 15 km over more than four hours while carrying a 20 kg load, and it is rated IP67 with an operating range from -20°C to 55°C. Those figures describe a machine that can be committed to a long incident, operate in spray and runoff, and continue working through a winter night at a European industrial site. The modular design means the same platform can be re-equipped as the needs of the service evolve.

Who is the B2-XF2-F for?

The first group of buyers is municipal and county fire brigades that want to keep crews out of the collapse zone during large structural fires, warehouse incidents and fires in underground car parks. For them, the combination of a 60m firing range and autonomous navigation is the core of the proposition.

The second group is industrial fire teams at chemical plants, refineries, energy sites, logistics hubs and tunnels, where foam capability and the ability to approach a hazard remotely carry particular weight. The third group consists of fire academies, civil protection agencies and research institutes that evaluate robotic tactics, write operating procedures or develop new payloads on the open interfaces of the B2 platform.

The fire rescue series is offered in several configurations, including the Unitree B2 Fire Rescue Quadruped Robot Dog (B2-XF2-A), the Unitree B2 Fire Rescue Quadruped Robot Dog (B2-XF2-D) and the Unitree B2 Fire Rescue Quadruped Robot Dog (B2-XF2-E), as well as the B2-XF2-B and B2-XF2-C. Robots Europa explains how each configuration differs and which one matches the operational brief before a quotation is finalised.

What is the B2-XF2-F used for?

1. Structural firefighting: delivering water into a building interior while crews remain outside the immediate danger zone.
2. Industrial and chemical fires: applying foam to fuel or chemical fires from a remote position.
3. Tunnel and underground incidents: advancing through smoke-filled tunnels and car parks with laser-based navigation.
4. Reconnaissance before entry: sending cameras and LiDAR ahead to assess conditions before crews commit.
5. Cooling and exposure protection: keeping tanks, structures or neighbouring buildings cool during a prolonged incident.
6. Training and doctrine development: helping academies and agencies develop procedures for robot-assisted fire response.

Pricing and Availability

Robots Europa supplies the Unitree B2 Fire Rescue Quadruped Robot Dog (B2-XF2-F) on the basis of a written quotation, prepared for the configuration, the fire-fighting equipment and the services the customer requires. Delivery, customs and support are arranged with the quotation. The scope of delivery comprises one Unitree B2 battery and one Unitree B2 charger; the payloads shown in product imagery are not part of the standard scope, so Robots Europa sets out the equipment for each order in writing. Requests from fire services, public bodies and industrial operators across the EU and the DACH region are welcome, and the quotation form is available on this page.

Frequently Asked Questions

Does the B2-XF2-F navigate autonomously?

Yes. As an XF2 model, it includes the Laser SLAM kit for autonomous navigation, which XF1 and F2 models do not have.

Can the water cannon apply foam?

Yes. The water cannon can be used for both water and foam, with a flow rate of 40L/s and a firing range of 60m.

How does the cannon cope with uneven ground?

The cannon has a body-compensated angle and a pitching range of 5 - 85°, so the robot's posture is taken into account as it aims.

Can the robot climb stairs?

Yes. The B2 base robot climbs stairs of 20-25 cm continuously and handles a climbing angle of 45°.

How long does the battery last?

The B2 base robot has a battery life of 4-6 hours from its 45 Ah (2250 Wh) battery, and it walks for more than four hours with a 20 kg load.

Can the robot work in cold or wet conditions?

The B2 base robot is rated IP67 and operates from -20°C to 55°C, which suits spray, runoff and winter deployments.

Where can I buy the Unitree B2 Fire Rescue Quadruped Robot Dog (B2-XF2-F) and what does it cost?

You can buy it from Robots Europa, which supplies customers across the EU and the DACH region. The cost depends on the configuration and services you require and is set out in a written quotation that you can request on this page.

Summary

Firefighting has always been a question of how close a crew can safely get. The Unitree B2 Fire Rescue Quadruped Robot Dog (B2-XF2-F) shifts that question to a machine: a legged B2 platform that climbs stairs and slopes, a water and foam cannon that reaches 60m, and a Laser SLAM kit that lets it find its way where smoke defeats a camera. Robots Europa supplies it with delivery, customs and support arranged from Dublin for services and operators across Europe. For any brigade or safety team that wants to cover those last metres without sending a person, this page is the starting point.