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Hydraulics

75 Digger Drive

Driver Heads – Digger Drives, Output Torque, 4,300 to 20,000 ft.-lb., Two-Speed, Shift-On-The-Fly or Optional Single Speed, Heavy-Duty, Automatic Kick-Down, Maximum System Pressure: 2,750 PSI.

The 75 Series Digger Drive, “Hydrasync” uses a high-efficiency double planetary for high-torque requirements, like foundation anchor installation, and drilling larger holes for piers. The 75 can provide a cost-saving alternative to other single-purpose equipment.

The 75 Series is available with automatic “Kick-down” option (when operations require it). The digger will shift to low-speed, high-torque position while you keep digging. There is no need for an additional hydraulic line to shift the motor. This option requires a motor with a high-pressure shaft seal.

Features:

  • Two-Speed
  • Automatic kick-down
  • Heavy-duty
  • Double planetary
  • High-efficiency

Models 75 or 78 Hydrasync™ with Kickdown Features:

  • 2-speed shift-on-the-fly Hydrasync™
  • For use in utility and construction applications
  • At 2,300 psi, shifts to low-speed high-torque
  • No shift line, shift valve or motor case drain line
  • Digger stays in low unless digger control valve is centered
  • Gives more control for driving anchors in changing soil conditions
  • Specifications
    • + expand all
    • - collapse all

    Performance Characteristics

    Rated Output Torque 20,000 ft. lbs. 27,112 Nm
    Maximum System Pressure 2,750 psi 189,7 bar
    Output Shaft (hex) 2-5/8" (66,7 mm) 3" (76,2 mm)
    Shaft Pullout Load 30,000 lbs. 13,600 kg.
    Shaft Pressure Load 30,000 lbs. 13,600 kg.
    Bail Boss Diameter 1.51" (38 mm) 2.0" (50.4 mm)
    Approximate Weight (with motor) 510 lbs. 230 kg.
    Motor Mount SAE "C" 2-bolt & 4-bolt
    Motors 1 & 2-speed (speed gear type) -
    Maximum Shifting Pressure 300 psi (20,7 bar) -
    Motor Case Crain Required
    Oil Capacity 10 pts. 4,6 liters
    Weight (with motor) 510 lbs. 231,8 kg.
    - -
    75/78 with Kick-down Digger Drive (product specification) Criteria - -
    Hydraulic System -
    2400 psi / 250 psi -
    40 gpm minimum -
    Motors Two-speed with high-pressure seal
    Motor mount SAE "C" 2-bolt & 4-bolt
    Heavy-Duty, high-efficiency, double planetary drive Shaft side loading not recommended

    Options

    Shaft (hex) 2-5/8" 3"
    Boss (dia.) 1-1/2" 2"
    Rotated Bail (90°) For backhoe and excavator use -
    Kick-Down Forward and reverse Must be ordered with motor code 60 or code 61
    Motor Options available (factory & user) Contact GS Global Resources for more information

    Features and Benefits

    - 2-speed -
    - Automatic kick-down -
    - Heavy-duty -
    - Double Planetary -
    - High-efficiency -
    - - -
    Models 75 or 78 Hydrasync™ with Kickdown - -
    - 2-speed shift-on-the fly Hydrasync™ -
    - At 2300 psi, shifts to low-speed, high-torque -
    - No shift line, shift valve or motor case drain line -
    - Digger stays in low, unless digger control valve is centered Giving more control for driving anchors in changing soil conditions

    Markets

    Mobile -
    Agriculture -
    Construction -
    Utility -

    Applications

    Anchor Installation
    Drilling Larger Holes for Piers -
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