The Rhino PD-55 Square Post Driver Kit is the package for square-tube and Telespar-style sign posts: the 54 lb PD-55 pneumatic post driver with its 3-7/8 in. I.D. master chuck, plus a square tube breakaway adapter for square anchor systems. The driver runs 42 CFM at 90 PSI at up to 1,700 blows per minute, with a single moving part a double-valve reciprocating piston keeping maintenance low.
Air-line essentials are included throttle valve kit with 5 ft hose whip, filter-regulator-lubricator with carrier and hose, 15 ft hose whip assembly and a gallon of rock drill oil while additional chuck adapters are sold separately. Other configurations live in the PD-55 kit lineup, and the Rhino post driver buyer’s guide matches driver to post type across all the post drivers we stock.
- PD-55 pneumatic post driver with 3-7/8 in. I.D. master chuck and square tube breakaway adapter included
- 42 CFM at 90 PSI air consumption; up to 1,700 blows per minute
- 54 lb driver with 3-1/2 in. alloy steel piston fits tight job sites
- Includes throttle valve kit with 5 ft hose whip, FRL with carrier and hose, and 15 ft hose whip assembly
- One gallon of rock drill oil included; additional chuck adapters sold separately
- Applications with optional adapters: ground rods, tent stakes, form pins, pipe, T-posts, Telespar and channel posts
- Kit assembled and shipped by Crowder Supply in Denver
PD-55 Square Kit FAQ
What posts does this kit drive out of the box?
The included square tube breakaway adapter sets it up for square-tube and Telespar-style sign posts and square anchor systems. Ground rods, tent stakes, form pins, pipe, T-posts and channel posts need additional PD chuck adapters, which are sold separately.
What size air compressor does the PD-55 need?
The driver consumes 42 CFM at 90 PSI, so a compressor with roughly 45 CFM of spare capacity runs it at its full rate of up to 1,700 blows per minute.
What air-line gear is included in the kit?
Everything between compressor and driver: a throttle valve kit with 5 ft hose whip, a filter-regulator-lubricator with carrier and hose, a 15 ft hose whip assembly and one gallon of rock drill oil.



