Unitree B2 Quadruped Robot

Most legged robots ask you to choose between nimble and durable. The Unitree B2 Quadruped Robot is built for buyers who refuse that trade: a machine that climbs stairs, jumps ditches and crosses obstacles, then keeps walking for hours while it does the work it was sent to do. For teams that need a robot to finish the shift, endurance matters as much as agility.

The Unitree B2 Quadruped Robot is available through this page, by quotation.

Background

Unitree Robotics and the B2 lineage

Unitree Robotics is a Chinese maker of legged robots. Its quadrupeds range from compact machines for teaching and experimentation to larger platforms meant for field work. The B2 sits at the heavier, industrial end of that range. The source material describes a 170% increase in joint performance for this generation, with joint torque of about 360 N.m, and that figure shows what the platform is aimed at: carrying, climbing and working outdoors, not demonstrating.

The sources name four versions: B2, B2-W, B2-Ex and B2-NAV-KIT. The wheeled form is an option. The B2 structure is designed to switch between legged and wheeled forms, so a site with long flat corridors and a site with stairs can both be served by one family. The figures in this article are given for the B2 as the sources publish them and are not assigned to any other version.

Positioning and key technology

The B2 is an industrial-grade carrier of sensors and equipment. Its standard configuration pairs a 3D LiDAR, two depth cameras and two optical cameras, and this set varies with the configuration you choose. For computing, the platform lists an Intel Core i5 for platform functions and an Intel Core i7 for user development. In practice this means one processor handles locomotion and perception while the other is open for a team's own software.

Power is the other half of the design. The battery supports quick change, and autonomous charging solutions are available as an option. That matters for any robot expected to run a route repeatedly without an operator standing beside it. To compare the wider family, visit the Unitree B2 category.

Technical Specifications

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

The manufacturer has not published the payload mounting specifications, the charging time or the noise level; they are confirmed at quotation.

What makes the B2 endurance figures worth reading closely?

Battery life of 4-6h is the headline, but the walking figures are more useful because they describe real movement. Without a load, the robot walks for more than 5h and covers more than 20km. With a 20kg load, it walks for more than 4h and covers more than 15km. The gap between the two numbers is modest, and that is the point for anyone planning a patrol route: adding equipment shortens the day, but it does not end it.

The 45Ah (2250Wh) battery at 58V provides the energy, and the quick-change design means a spent pack does not have to keep the robot idle while it recharges. Teams planning repeated rounds can think in terms of swapping packs, or of the optional autonomous charging solutions where the site supports them. Charging time itself has not been published, so it should be raised when you request a quotation.

How much can the Unitree B2 carry and where can it go?

Two load figures describe the platform. The standing load is at least 120kg, and the continuous walking load is more than 40kg. The first tells you how much the frame can bear at rest; the second is the number to plan around for equipment that rides along on a route. A weight of about 60kg for the robot itself puts those loads in perspective.

Terrain figures are equally concrete. The robot crosses obstacles up to 40cm, climbs continuous stairs of 20~25cm, handles slopes steeper than 45° and jumps ditches 0.5~1.2m wide. It operates from -20℃ to 55℃, a range that covers hot outdoor sites as well as cold ones. When lying prone, the robot is about 330mm high, so it can be stored or transported in a compact posture.

Who is the Unitree B2 Quadruped Robot for?

Industrial operators come first: plants, power and utility sites, and facilities where routine inspection means stairs, gratings and uneven ground. A robot that carries a LiDAR and cameras can bring back information from places where staff would rather not go every day.

Research groups and universities are the second segment. The Intel Core i7 listed for user development gives developers room for their own perception and control work, and the load capacity allows custom sensor payloads to be tested. Integrators form the third segment; they can build solutions around the quick-change battery and the optional autonomous charging, and consider the wheeled option where the route is flat.

Buyers whose work is specifically fire and rescue should also look at the dedicated range, such as the Unitree B2 Fire Rescue Quadruped Robot Dog (B2-XF2-A) or the B2-XF2-B. Their specifications are listed on their own pages, and none of the figures in this article should be assumed for them. Buyers who need radio approval documentation can browse the FCC Approved category.

What is the Unitree B2 Quadruped Robot used for?

1. Industrial inspection. Walk a fixed route with LiDAR and cameras, taking readings at stairs, platforms and equipment rooms.
2. Load carrying. Move equipment along a route, with a continuous walking load of more than 40kg.
3. Research and development. Use the Intel Core i7 user-development computer to test locomotion, mapping and autonomy software.
4. Hazardous-area patrols. Send the robot where a person should not go, in temperatures from -20℃ to 55℃.
5. Hybrid-route operations. Choose the optional wheeled form for flat stretches and legs for stairs and rough ground.
6. System integration. Build a complete inspection or monitoring solution around the platform, its battery system and its sensors.

Pricing and Availability

We do not publish prices on this page. A quotation is the way to proceed, because the configuration, the version (B2, B2-W, B2-Ex or B2-NAV-KIT), the sensors and the optional features all shape what you receive. Delivery, customs and support are arranged together with the quotation. The Unitree B2 Quadruped Robot is available on this page.

Frequently Asked Questions

How long does the Unitree B2 run on one battery?

The battery life is 4-6h. Walking without load exceeds 5h and 20km, and walking with a 20kg load exceeds 4h and 15km.

How much weight can the B2 carry?

The standing load is at least 120kg and the continuous walking load is more than 40kg.

Can the B2 climb stairs?

Yes. It climbs continuous stairs of 20~25cm, crosses obstacles up to 40cm and handles slopes steeper than 45°.

Is there a wheeled version?

The structure is designed to switch between legged and wheeled forms, as an option. The B2-W is one of the versions the sources name.

What sensors and computers does it have?

The sensor set is one 3D LiDAR, two depth cameras and two optical cameras, and it varies with configuration. Computing uses an Intel Core i5 for platform functions and an Intel Core i7 for user development.

Can the battery be replaced quickly?

Yes. The battery supports quick change, and autonomous charging solutions are available as an option.

Where can I buy the Unitree B2 Quadruped Robot and what does it cost?

You can buy it through this page by requesting a quotation. The cost depends on the version and configuration, so it is given in the quotation and not printed here.

Summary

The Unitree B2 Quadruped Robot answers the question of how to get agility and staying power in one machine. It carries a standing load of at least 120kg, walks for hours, climbs stairs and slopes, and works across a wide temperature range. Its quick-change battery and optional wheeled form show that it is designed for repeated working days. If you are ready to define your configuration, this page is the starting point.