We built the first "Tub" Grinder in 1947, and held the original patent from 1952 to 1969.
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"Celebrating our 70th Anniversary!

(719) 336-7433

Physical Dimensions

  • Transport length…………………………..….40ft
  • Transport Height…………………………..…13’6”
  • Transport Width………………………..….11’10”
  • Width across top of tub………………………13’
  • Inside tub diameter……………………….…..10’
  • Tub depth………………………………….……...66”
  • Loading Height…………………………………11’1”
  • Weight…………………………………....60,000 lbs.

​Grinding Cylinder

  • ​Length………………………………………………….63”
  • Shaft size………………………………………….…5-7/8”
  • Hammers……………..…………...28pcs 2 1/2” thick
  • Stationary hammers

​Tub Assembly

  • ​Tub wall thickness……………….………………3/8”
  • Tub drive………………………..……81XHHR chain
  • Powered by……….…….Eskridge 22:1 gear box
  • Hydraulic motor and pump

Hydraulic Landing Legs (optional)

Model P11-56XSHD-WF Specifications

Engine

  • Caterpillar-C18………………..800HP
  • Caterpillar-C27………………..950-1050HP

​​Capacity

  • Stumps and logs……110 tons per hour/300 cubic yards
  • Brush and yard waste…..75 tons per hour/450 cubic yards
  • Pallets and demolition……110 tons per hour/700 cubic yards

Screen size, methods of loading and operator skill can effect production​

​​Optional Equipment

  • ​Knuckle boom loader
  • Tool box
  • Electric winch rod puller
  • Magnetic head pulley with chute
  • Air Compressor-10hp gas with electric start
  • Hydraulic Landing Legs
  • Radial stacking conveyor
  • Tier 4 Final Engines

Engine and Tub controls ground level

Radial Stacking Conveyor (optional)

Model P11-56XSHD-WF