Legged robots are no longer science projects — they are tools with a price tag and a payback period.
Ip67 rating is one of the terms buyers meet early when evaluating Unitree robots. Here is the plain-English version.
The short answer
IP67 means the robot is dust-tight and can survive immersion in up to 1 metre of water for 30 minutes. The Unitree B2 and B2-W carry IP67 so they can work in rain, mud and spray.
How it works
In practice it is less magic and more good engineering: sensors build a live map, onboard compute turns that into safe moves, and the whole loop runs many times a second. The result is a robot that copes with the messy real world instead of a lab.
Why it matters for buyers
Understanding IP67 rating helps you judge whether a given model fits your site. It also tells you which options — compute, sensors, ingress protection — are worth paying for.
Frequently asked questions
Is IP67 rating the same across the lineup?
The principle is, but the hardware differs: a Go2 has less compute and protection than a B2, so capability scales with the model.
Where can I see it in action?
Most Unitree product pages show the behaviour; the SDK samples let you reproduce it on your own unit.
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Specifications are publicly reported and approximate; exact figures depend on configuration, region and production batch. Confirm the current sheet with your supplier before purchase.