GK Machine, Inc.

Model H7 - Tree Digger

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GK's H7 Bare Root Digger has proven itself year after year, in field after field as the backbone of GK's product line and the premier bare root tree and shrub digger in the industry. This workhorse gets the job done fast and efficiently, and it's extremely easy to operate and maintain.

  • With a very low center of gravity, the H7 maneuvers well in all kinds of terrain and ground conditions.
  • The H7 has the power needed to make tough digging jobs easy - it puts out just over 440 lbs. of torque at 1,500 RPM.
  • Designed to straddle rows, the H7 has “on-the-go” track width adjustment while the tunnel offers a full 9’ of vertical clearance.

The H7 travels at 6 miles per hour, covers an area of 12’ 6” and will pull the ½” thick sold steel U-blade for a complete length of 21’ 6” – all while carrying 80 gallons of diesel, driver and blade. The variable speed oscillating shaker arm efficiently removes soil and debris from the root structure for a fast and efficient operation.

Specifications
  • Engine: John Deere 4-cylinder 173 HP
  • Transmission: Sundstrand Series 90 - Two hydrostatic pumps
  • Final Drives: 2-speed planetary gearbox, 0-6 MPH
  • Auxiliary Hydraulics: Flow compensated with full-load sensing • 25 GPM and 2500 PSI
  • Undercarriage: Caterpillar D3 | 16” single grouser pads | Rock guards
  • U-Blade: Variable speed oscillating shaker arms | 22” – 32” wide blade, ½” thick, 24” max depth | Hydraulic u-blade tilts control
  • Dimensions and Weights: Track center width of 45” – 92” | Machine width of 72” – 119” | Machine height of 10’ 8” to top of stack | Machine length of 12’ 6” without u-blade/shaker arm | Machine length of 21’ 6” with u-blade/shaker arm | Machine weight of 20,000 pounds | Tunnel clearance of 110” | Track length of 102” center to center | Track width of 16” | Ground pressure of 6 PSI | Fuel capacity of 80 gallons

Hydraulic Options:

  • 3-point hitch (left and right)
  • Width adjustment for widening tunnel
  • Auxillary hydraulics to run chopper or tiller

Implements:

  • Nose cones
  • 4’ bed digger/shaker
  • ¾” thick digger blade
  • Extended track grouser
  • Chopper/tiller

Other:

  • Lexan windows
  • Pull-arm toolbar
  • Heater
  • Light kit

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