Mobile Unloaders

We don’t build trailers, we unload them.
KEITH® WALKING FLOOR® self-unloading systems bring mobile unloading options to where tippers and dump trailers can’t: Inside buildings and tunnels, under power lines, and on uneven or unstable ground.

Safety is essential. The horizontal unloading action of the WALKING FLOOR® system is safer than dump or tipper trailers, which can overturn in windy conditions or due to load shift. WALKING FLOOR® trailers keep you grounded.

Interested in a KEITH® WALKING FLOOR® unloader? Visit our Dealer Map to find a dealer near you.


The WALKING FLOOR® system is made of a series of floor slats, which are powered by a hydraulic drive, usually located underneath. As the floor moves through its four-phase cycle, every third slat moves together. During the final phase, all slats move in unison conveying the material. The friction of the load on the two sets of slats that remain in place keeps the load from moving while the single set of slats moves.


KEITH® Sweep Systems clean the floor of the trailer as it unloads, reducing payload cross contamination. The automated system eliminates the need for brooms or manual tarps so the operator never needs to enter the trailer, providing a safer working environment. Sweep systems are based on the floor profile and the material unloaded. For more information, download the KEITH SWEEP SYSTEMS BROCHURE or CONTACT US.

Mobile Installations Gallery

KEITH® WALKING FLOOR® systems are used in a wide variety of industries throughout the world to handle bulk materials. Today, the WALKING FLOOR® brand name is known internationally to describe the self-unloading system designed and manufactured exclusively by KEITH.

Floor Slats

KEITH WALKING FLOOR® systems are available in a wide range of profiles and thicknesses to address the vast number of applications that are in use worldwide.

For more information on choosing the right flooring options, download the Flooring Brochure or contact us.

Most common slat profiles shown. Additional slats available.


  • Heavy Duty Use
  • High Temperature Applications
  • Steel or Aluminum Slats

V-18 Aluminum

  • For MSW
  • No Floor Seal
  • Leak Resistant

Stainless Steel

  • For Abrasive Loads
  • High Wear Resistance
  • For Non-Impact Only

Standard Aluminum

  • Versatile Slat
  • Range of Profiles
  • Lightweight

Pressure Seal® Lite

  • For Fine Products
  • Tight Load Seal
  • Aluminum or UHMW


  • For Wet Loads
  • Interlocking Slat
  • Holds Up to 12″ of Liquid*

*With front-mount drive.

Check out our interactive WALKING FLOOR® Unloader to view a breakdown of its components.

Can't Find What You Are Looking For?

Take a look at our unique and efficient products: