Steel Warrior Sumo Robot Kit (No Electronics – Not Assembled)


Steel Warrior, our very well designed robot sumo chassis, comes with 4 powerful Titan motors and  rubber wheels. Suitable for all sumo robot tournaments. Ready for attaching magnets and sensors.


Fully closed design makes robot unbreakable. You can secure all electronics inside of SteelWarrior.


Easily Attach Your Wedge

Front plane is bend to 15 degrees. 2 milimeter thickness gives enough strength.

Just use double sided tape or M3 screws for attaching thin blades.

Small angle will help to get under of opponent more easily.

Enough Room For All Parts

Four motor design makes robot very well balanced. You can place your batteries between motors easily. Left and right opponent sensors secured between wheels.

Better Mechanical Stability

At back side 2 wheel is always touches to ground, If opponent robot get under your robot still 2 wheel will be contacted to dohyo.

2 milimeter thickness chassis and design makes robot’s COG lower then other projects.

Best Design for robot sumo competitions with good price.

Suitable For All Sensors

You can use most models at SW chassis. M18 threaded sensors and industry standart prismatic sensors (Omron, Keyence, Sick, Pepperl Fuchs Miniature sensors) can be easily attached. Holes drilled with considering that sensor mount sizes.

Change for Magnetic Japan Style

At bottom chassis has lots of 2,5mm holes ready for tapping. Which means that you can use holed magnets for changing robot for metal dohyos.

You can click the picture for bigger size. At picture 15-20-25 milimeter diameter magnets attached to chassis.

Comes With Extra Plate!

SW comes with one extra middle plate for different assemblies. Middle plate has lots of hole and slots for attaching boards & sensors. All power and data cables can pass from bottom to top with cutted areas of chasis.

Produced with passion with our experiences! Not like any robot sumo chassis!

There are similar kits at another markets but just outdated designs.. Not like SteelWarrior

What is included at Our Robot Sumo Kit?

  • Steel Warrior Chassis (6 Pieces)
  • Titan Motors (4 Pieces – 200 Rpm or 500 Rpm)
  • Rubber wheels (4 Pieces – 6mm holed, 53milimeter diameter, 36mm width)
  • M3 Standoffs & Screws

Caution! Full list is at right. Above picture just includes some parts of kit.

What will you need more?

  • Battery (3S or 4S Lipo Battery is good 1500-2000 mah Enough)
  • Opponent & Edge Sensors (Omron, MZ80 sensors – Look below for recommendations)
  • Motor Controller (Relay Board or H Bridges Ok, It should give 10 Ampere continously)
  • Main Controller (Arduino or Pic boards)
  • Magnets (If your dohyo is metal and allowed to use magnets.)


If you have any competition at robot sumos but can’t afford to maxon motor designs that model is very suitable for you. Engineered design will crash all opponents.

Rigid structure will give hard impacts to opponents.

High powered Titan motors will work in higher voltages for more pushing force.

Other Notes

  • Chassis can be painted on black.
  • Best usage with five opponent sensors (Caution, sensors not included)
  • At front blade use spring steel with 0,3-0,5 milimeter thickness.
  • Place magnets balanced and near to the wheels.


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