Greenlee HPD-T-U Sign Post Driver

Part Number: HPD-T-U
Price: $3270.68
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Greenlee Fairmont hydraulic sign post driver with integral trigger and universal post adapter. These are a big seller with state and local DOT as they make installing road signs much easier then a manual post driver.

If you are running these tools off of a skid steer or other hydraulic source then you will likely need a reducing valve to keep
the hydraulic flow between 5 to 8 GPM and keep the pressure under 2300 PSI.


  • This post driver can drive a variety of post sizes from small delineator posts up to 3 1/2 inch round posts including square, “U” channel, breakaway stubs, round, “T” fence, and wood.
  • Quick change front head design accommodates adapters for different types of posts.
  • On tool trigger operation.
  • Dual guide handles for good directional control.
  • A deep post opening and smooth operation ensures that the driver will not jump off of posts.


  • Hydraulic System: Open and closed center.
  • Weight: with adapter and hoses 75 lbs
  • Length: 32 inch
  • Hydraulic Flow Range: 5-8 gpm
  • Blow Energy: 81 ft-lb
  • Blows/min: 1500 at 8 gpm
  • Maximum Input Pressure: 2300 psi
  • On/Off Hose Connection Sizes: Pressure Hose 1/2 inch NPTF Return Hose 1/2 inch NPTF

Hydraulic sign post driver with built in valve and universal adapter.