Humanoid robot with ice-blue RoboChill cold packs clipped on its knee and hip joints, cold vapor drifting off

U.S. patent pending · Filed Nov 2026

Robots run hot.
Keep them moving.

RoboChill is a clip-on cold pack for robot joints. Snap it on, get more full-power time, and let the robot swap in a fresh one by itself.

Get early access See how it works

01 — The problem

Heat is the new
dead battery.

Push a robot hard, like climbing stairs, carrying loads or running a race, and its joint motors heat up fast. When they get too hot, the robot has to cut power or stop to cool off.

Bigger motors and fans add weight and cost. Most robots already in the field can't be redesigned anyway. They just need to stay cool for the next hour of work.

  • ThrottleHot joints lose torque
  • PauseRobots sit idle to cool
  • WearHeat ages motors and gears
Humanoid robot climbing stone mountain stairs at dawn with RoboChill packs on its knees
Concept render · long-climb endurance

02 — How it works

Clip. Chill. Swap. Repeat.

Close-up of a RoboChill pack clipped onto a robot knee actuator
  1. 01

    Clip it on

    A saddle mounts on the outside of the joint, even on robots already built. The cold pack snaps into it. No teardown and no new motors.

  2. 02

    Phase-change chill

    The pack holds a pre-chilled phase-change core. As it melts, it soaks up heat from the actuator and keeps the joint in its sweet spot much longer.

  3. 03

    The robot knows

    A smart tag in each pack tracks how much cooling is left. The robot plans its work around it and knows when it's time for a fresh pack.

  4. 04

    It swaps itself

    The robot walks to a chilled dock, grabs a cold pack by its grip, drops off the spent one and gets back to work. Nobody has to step in.

03 — The pack

Small part. Big headroom.

Tap the dots to explore.

RoboChill cold pack module with translucent ice-blue shell, graphite clip saddle and grip handle
A · GRIP

Made for robot hands

A textured handle lets the robot pick the pack up and set it down without help.

B · CORE

Phase-change core

Pre-chilled gel that soaks up heat as it melts. Recharge it in the dock and use it again.

C · SADDLE

Clip-on saddle

Mounts on the outside of the joint, so you can add it to robots that are already out working.

D · TAG

Smart tag

Each pack carries an ID that tracks how much cooling it has left, so the robot always knows.

Robot hand pulling a fresh RoboChill pack from a refrigerated wall dock

04 — The dock

A pit stop
with no pit crew.

The chilled dock keeps a row of packs ready. Robots swap in seconds, and the spent packs refreeze for the next round.

Reserve a pilot spot

05 — Built for

Anywhere robots work hard.

01

Humanoid makers

Add thermal headroom without redesigning the joints.

02

Robot race teams

Swap packs at each stop instead of waiting for joints to cool.

03

Warehouses & plants

Keep robots at full power through long, hot shifts.

04

Labs & schools

A cheap way to test longer and protect pricey motors.

06 — FAQ

Quick answers.

Is RoboChill available now?

Not yet. We're in early development. Join the waitlist to hear first about pilots and launch timing.

Does it fit my robot?

RoboChill is built to clip onto the outside of joint actuators, including robots that are already in use. Tell us your robot on the form and we'll follow up.

Is it protected?

Yes. A U.S. provisional patent application for RoboChill was filed and paid on November 12, 2026, so RoboChill is patent pending.

Do I need the dock?

No. Packs can be swapped by hand from any freezer. The dock lets the robot do it by itself.

How much will it cost?

Pricing isn't set yet. Waitlist members get early pricing first.

Early access

Stay cool.
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