The Rhino PD-55 (P/N 070013) is the medium-duty workhorse of the Rhino pneumatic post driver line, manufactured in Kewanee, Illinois with over 40 years of continuous service in the field. A single reciprocating alloy-steel piston controlled by a double valve drives directly down on the post one moving part doing all the work, which is what gives the PD-55 its long service life and short repair list.

• Medium-duty pneumatic post driver, 55 lb working weight, single-operator handheld for staged compressor jobs.
• 3-1/2 inch alloy steel piston delivers ~1,700 BPM at 90 PSI working pressure through a 3-7/8 in. master chuck (P/N 070592).
• Air consumption 42 CFM at 90 PSI; runs from a 60-80 CFM tow-behind compressor with 3/4 in. air hose for full driving force.
• PD-55 PostMaster variant (P/N 070019) ships with the slotted chuck for Master Halco PostMaster and PostMaster Plus fence systems.
• Adapter set covers 1, 1-1/2, 2, 2-1/2, 3, and 3-1/2 in. round post diameters plus T-post, channel post (1.2-1.5, 2-2.75, 3-4 lb/ft), and 4-1/16 in. square wood post.
• Drives ground rod, concrete form pin, T-post, channel post, round line and terminal post up to 3-5/8 in., and 1-3 in. Schedule 40 pipe with the matching drive cap.
• Optional 4-1/4 in. master chuck (P/N 070060) lets the PD-55 share heavier adapters with the PD-110 for inventory consolidation across a fleet.
• Adapters and drive caps from the PD-55 family also fit the Rhino HPD-60 hydraulic driver, sharing inventory between pneumatic and hydraulic crews.
• Single-piston design has been the Rhino fence-contractor standard for over 40 years; minimum mechanical complexity, decades of service life.
• Crowder Supply stocks the full PD-55 adapter, drive cap, FRL, and accessory line, including the Master Halco PostMaster slotted chuck and replacement piston/seal kits.