Carnegie Mellon University

Mini Crusher

Mini Crusher is a small, rugged, versatile robotic platform. Its mobility, stability, large payload capacity and modular design make it an ideal platform for a wide range of tasks including mine mapping, research, first response, monitoring hazardous industrial environments, hazmat applications, explosive ordnance disposal, reconnaissance and surveillance. 

Small robotic platforms often have trouble traversing gravel, rocks and other difficult terrain. Their top speed is limited even on flat ground. Some suffer from vibration and controllability problems even at relatively modest speeds. These platforms can be difficult to adapt to new uses.  

Mini Crusher was designed to be highly mobile, highly stable and highly customizable. Its six wheels and independent suspension conquer challenging obstacles and provide superior stability even at high speeds. Its suspension compensates for rough ground, providing a stable platform for collecting data. Sturdy, modular construction allows it to stand up to rough terrain and facilitate maintenance. 
Design Highlights: 
  • The 125-pound Mini Crusher carries payloads of up to 100 pounds in an open, 1200 cubic inch bay with power port.   
  • Its 850 square inch side wings give ample space for mounting cameras, ladar and other sensors.  Its compact size (30 inch length x 20 inch width x 12 in height) makes it easy to transport.   
  • Mini Crusher’s battery pack is the only component located inside the hull. Power is supplied by a commercial, off-the shelf lead-acid battery that can be easily and inexpensively replaced.   
  • Mini Crusher’s skid steering makes it easy to maneuver. It reaches a top speed of 15 mph and is very stable and controllable even at maximum speeds. It can climb slopes of over 40°.
  • Mini Crusher can be scaled up to larger sizes or different configurations (e.g. 8 wheels).
  • Its soft suspension provides excellent stability over rough terrain. 


Mini Crusher
Mini Crusher
Mini Crusher