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

Heat is the one opponent a firefighter cannot talk down, and every extra meter of distance from it is worth having. The Unitree B2 Fire Rescue Quadruped Robot Dog (B2-XF2-B) is a four-legged machine made for that trade-off: it walks toward the fire, works in conditions that wear down people and ordinary equipment, and sends back what it sees so that commanders can decide from a safe position.

The product is available through this page, by quotation.

Background

Unitree Robotics and the B2 lineage

Unitree Robotics is a maker of quadruped robots, and the B2 is its heavy-duty platform. The fire rescue family is built on that base. The sources name four versions: B2 Fire Rescue XF1, B2 Fire Rescue XF2, B2 Fire Rescue F2 and B2 Fire Rescue F2D. This page covers the B2-XF2-B, listed under the XF2 name.

A four-legged base suits fire work because legs can step over debris, climb steps and keep a stable footing where wheels and tracks may struggle. The base robot runs at 6 m/s, which means it can reach a scene quickly before it starts any task.

Modular design for the fire rescue trade

The product is deeply integrated into fire rescue applications and supports modular functions and replacements. In practice, the same walking platform can carry different working modules. The sources describe a water cannon module and an air blower module, each aimed at a different kind of fire.

The joint performance has increased by 170%, which matters for a robot that must carry equipment, climb and keep its balance while working. The body is made of a composite metal that is wear-resistant, high in mechanical strength, dust-proof and waterproof, chosen to cope with harsh environments.

Technical Specifications

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

The manufacturer has not published the weight, the exact dimensions for this version, the contents of the box, the water tank or hose details, or the software and SDK support for this version; they are confirmed at quotation.

What makes the B2 Fire Rescue different from an ordinary inspection robot dog?

An inspection robot dog is built to look, listen and measure. A fire rescue robot dog has to do all of that and also fight the fire, so the design changes in several places.

First, the body. The composite metal shell is dust-proof and waterproof, and the series carries an IP67 protection rating. A machine that stands in water spray, smoke and dust needs that sealing. Even the battery change is designed around it: quick battery replacement is possible while water-tightness is maintained, which the source describes as significant for rescue efficiency and safety.

Second, the working modules. The water cannon module has a pitching range of 5 - 85°, a water flow rate of 40L/s and a firing range of 60m, and it handles both water and foam. The air blower module takes a different route and extinguishes forest fires through high-speed airflow. An ordinary inspection platform carries neither.

Third, the payload. The series offers a payload capacity of over 40 kg, which gives the modules room to be mounted and carried.

How does the robot cope with heat and smoke?

The drencher system is the answer to heat. It ensures that the robot dog can continue to operate in high-temperature environments without being affected by heat, which improves fire-extinguishing efficiency. A robot that has to retreat because it is hot cannot finish the job, so this system keeps it at work.

Smoke is a problem for people more than for sensors, and the robot's sensor set is built to see through it as far as the hardware allows. The base robot carries one 3D-LiDAR, two depth cameras and two optical cameras. The visualization platform then enables long-distance transmission of the video stream with a clear view. It recreates the onsite environment for commanding and provides visualized information for rescue decision-making.

For stairs and uneven ground, the robot can ascend and descend steps up to 40cm high when facing front. The base robot's operating temperature runs from -20°C to 55°C, which defines the ambient range of the platform itself.

Who is the Unitree B2 Fire Rescue Quadruped Robot Dog (B2-XF2-B) for?

Fire departments and industrial fire brigades are the first group. They gain a way to place water or foam on a fire from 60m away without committing a crew to the hot zone. Operators of sites with a high fire risk, such as large plants and storage areas, form a second group, since a machine that is already on site can respond before a crew arrives.

Forest and wildland fire services are a third segment. The air blower module is described for forest fires, where high-speed airflow is the method of extinguishing. Emergency planners and public safety agencies in the Caribbean, where distances between stations can be long and terrain varies, may also see value in a machine that is robust and sealed against water and dust.

Integrators and research teams who want to build on the platform will note the interfaces on the base robot: four gigabit Ethernet ports, four USB 3.0 ports and several power outputs. The sources also name three sibling versions, the B2 Fire Rescue XF1, F2 and F2D. The fact sheet does not state how they differ from this one, so ask us at quotation which version best fits your task.

What is the Unitree B2 Fire Rescue Quadruped Robot Dog (B2-XF2-B) used for?

1. Water and foam fire fighting. The water cannon module delivers 40L/s of water or foam to a range of 60m.
2. Forest fire suppression. The air blower module extinguishes forest fires through high-speed airflow.
3. Work in high heat. The drencher system lets the robot keep operating where heat would otherwise stop it.
4. Access over steps and rough ground. Legs let the robot ascend and descend steps up to 40cm high when facing front.
5. Remote command and observation. Long-distance video transmission gives commanders a clear view of the scene.
6. Sustained operations. Quick battery replacement that keeps water-tightness shortens the pause between missions.

Pricing and Availability

We do not publish prices on this page. A quotation is the way to proceed: tell us your use case, the modules you need and your location, and we will respond with a quotation for this robot. Delivery, customs and support are arranged with the quotation. The Unitree B2 Fire Rescue Quadruped Robot Dog (B2-XF2-B) is available on this page.

Frequently Asked Questions

What can the water cannon do?

The water cannon has a body-compensated pitching range of 5 - 85° and a water flow rate of 40L/s. It can be used for both water and foam, and its firing range is 60m.

How well is the robot protected against water and dust?

The B2 Fire Rescue series has an IP67 protection rating. The body is made of composite metal that is dust-proof and waterproof.

How much can the robot carry?

The B2 Fire Rescue series has a payload capacity of over 40 kg.

Can it work in high temperatures?

Yes. The drencher system lets the robot dog continue to operate in high-temperature environments without being affected by heat. The base robot's operating temperature is -20°C to 55°C.

Can the battery be changed quickly?

Yes. The battery can be replaced quickly while water-tightness is maintained. The base robot's battery is 45 Ah (2250 Wh) at 58 V.

Does it support other modules?

The product supports modular functions and replacements. The sources describe a water cannon module and an air blower module, and the interfaces on the base robot allow further equipment to be connected.

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

You can buy it through this page by requesting a quotation. The cost depends on the configuration and delivery destination, so it is given in the quotation rather than listed here.

Summary

Heat sets the limit of what a crew can do, and the Unitree B2 Fire Rescue Quadruped Robot Dog (B2-XF2-B) is built to move that limit. It combines a sealed composite metal body, a drencher system for high temperatures, a water cannon module with a 60m firing range, an air blower module for forest fires and a video link that keeps commanders informed. Its legs take steps up to 40cm high. If you want to see what it can do for your team, this page is the starting point.