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McMillen High Flow HP 75 Series Post Hole Diggers


  • For Skid Steer Loaders and Mid-Sized Excavators.
  • 24 to 54 GPM Available.
  • Several types of Augers up to 48" in Diameter Available.
  • Wide Variety of Auger Diameters, Lengths, and Styles for Every Digging Application.
  • All System Pressure Translates into Torque and Productivity, no Pressure Reducers are Used.
  • Extensions Available for Deeper Digging.
  • Various Mounts Available for Most Applications.

MODEL 3575 (Case Drain Line Required)
Maximum Auger Diameter 48"
Minimum Hydraulic Flow 24 GPM
Maximum Hydraulic Flow 30 GPM
Maximum Continuous Operating Pressure 2500 PSI
Output Shaft Options 2" Hex
OUTPUT SPEED
FLOW SPEED
24 GPM 78 RPM
26 GPM 84 RPM
30 GPM 97 RPM
OUTPUT TORQUE
PRESSURE TORQUE
1500 PSI 2,472 lb. ft.
2000 PSI 3,296 lb. ft.
2500 PSI 4,120 lb. ft.

MODEL 4075 (Case Drain Line Required)
Maximum Auger Diameter 48"
Minimum Hydraulic Flow 24 GPM
Maximum Hydraulic Flow 32 GPM
Maximum Continuous Operating Pressure 4000 PSI
Output Shaft Options 2" Hex
OUTPUT SPEED
FLOW SPEED
24 GPM 58 RPM
28 GPM 68 RPM
30 GPM 73 RPM
32 GPM 78 RPM
OUTPUT TORQUE
PRESSURE TORQUE
2500 PSI 3,155 lb. ft.
3000 PSI 3,786 lb. ft.
3500 PSI 4,417 lb. ft.
4000 PSI 5,048 lb. ft.

MODEL 5075 (Case Drain Line Required)
Maximum Auger Diameter 48"
Minimum Hydraulic Flow 28 GPM
Maximum Hydraulic Flow 40 GPM
Maximum Continuous Operating Pressure 3500 PSI
Output Shaft Options 2" Hex
OUTPUT SPEED
FLOW SPEED
28 GPM 59 RPM
35 GPM 72 RPM
40 GPM 85 RPM
OUTPUT TORQUE
PRESSURE TORQUE
2500 PSI 2,620 lb. ft.
3000 PSI 4,345 lb. ft.
3500 PSI 5,096 lb. ft.

MODEL 6075 (Case Drain Required)
Maximum Auger Diameter 48"
Minimum Hydraulic Flow 30 GPM
Maximum Hydraulic Flow 53 GPM
Maximum Continuous Operating Pressure 3500 PSI
Output Shaft Options 2" Hex
OUTPUT SPEED
FLOW SPEED
30 GPM 51 RPM
42 GPM 72 RPM
53 GPM 90 RPM
OUTPUT TORQUE
PRESSURE TORQUE
2500 PSI 4,531 lb. ft.
3000 PSI 5,437 lb. ft.
3500 PSI 6,343 lb. ft.

MODEL 8075 (Case Drain Required)
Maximum Auger Diameter 48"
Minimum Hydraulic Flow 36 GPM
Maximum Hydraulic Flow 54 GPM
Maximum Continuous Operating Pressure 3500 PSI
Output Shaft Options 2-1/2" Hex
OUTPUT SPEED
FLOW SPEED
36 GPM 42 RPM
45 GPM 53 RPM
54 GPM 64 RPM
OUTPUT TORQUE
PRESSURE TORQUE
2500 PSI 6,493 lb. ft.
3000 PSI 7,791 lb. ft.
3500 PSI 9,090 lb. ft.


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