Airrex
Airrex AD-55 Post Driver
Overview
The Airrex AD-55 Pneumatic Post Driver is intended for steel fence posts, sign posts and similar driving work. Its 3-7/8-inch inside-diameter master chuck accepts model-specific adapters to suit different post profiles. The published package includes the driver, whip hose assembly and throttle valve with coupler.
Features & Applications
- 56 lb published tool weight and 1,700 blows per minute.
- Published air requirement: 42 cfm at 90 psi.
- Ductile-iron top cover and body with carrying and side handles.
- 3-7/8-inch I.D. master chuck with round and channel-post adapter options.
- Heat-treated alloy-steel piston with a hard-chrome-plated ground surface.
Complete tool: AD-55Tool part # AD-55
Medium Duty Post Driver 3-7/8" I.D. Master Chuck
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AD-55 Part Number
Airrex AD-55 Post Driver
AD-55Medium Duty Post Driver 3-7/8" I.D. Master ChuckPart No. AD-55
Select Your Tool:
Select the Model and Part Number You Need.
| Select Your Tool | |
|---|---|
| Part Number | AD-55 |
| Item | Description |
| Top Cover: | Ductile iron casting, high in strength and ductility has a 1" (25.4 mm) diameter handle designed into the cover for easy handling and carrying. O-Ring sealed. |
| Body: | Ductile iron casting, with excellent wear resistant characteristics. The air inlet is cast into the body and tapped with 3/4" NPT female threaded ports, along with 1" (25.4 mm) diameter ergonomically designed side handles for easy handling and carrying. Chuck bolts pass thru the lower body flange into tapped holes in the chuck mounting plate allowing special chucks to be made in a wide variety of shapes and sizes. |
| Piston: | Alloy steel heat-treated with a ground surface with hard chrome plate. Designed with 2 round valve ports to give better lubrication and load distribution to the valve ring while running. |
| Master Chuck and Chuck Adapters: | The 3-7/8" (98.4 mm) I.D. master chuck is an all-welded, reinforced steel and tubing construction. The chuck is equipped with extra long chuck adapter attachment lugs. Standard chuck adapters are available in the following sizes: 1" (25.4 mm) I.D., 1 1/2" (38.1 mm) I.D., 2" (50.8 mm) I.D., 2 1/2" ( 63.5 mm) I.D., 3" (76.2 mm) I.D., 3 1/2" (88.9 mm) I.D. and three channel post adapters for 1.2 to 1.5 lbs/ft, 2 to 2.75 lbs/ft, and 3 to 4 lbs/ft posts. |
| Weight: | 56 lbs (25.4 kg) |
| Fasteners: | S.A.E. grade-5 bolts with belleville lock washers. All fasteners are plated. |
| Air Consumption: | 42 CFM (1.19 m³/min) @ 90 PSI (6.4 kg/cm²) |
| Blows Rate: | 1700 BPM |
Technical Specs
| Item | Description |
|---|---|
| Top Cover: | Ductile iron casting, high in strength and ductility has a 1" (25.4 mm) diameter handle designed into the cover for easy handling and carrying. O-Ring sealed. |
| Body: | Ductile iron casting, with excellent wear resistant characteristics. The air inlet is cast into the body and tapped with 3/4" NPT female threaded ports, along with 1" (25.4 mm) diameter ergonomically designed side handles for easy handling and carrying. Chuck bolts pass thru the lower body flange into tapped holes in the chuck mounting plate allowing special chucks to be made in a wide variety of shapes and sizes. |
| Piston: | Alloy steel heat-treated with a ground surface with hard chrome plate. Designed with 2 round valve ports to give better lubrication and load distribution to the valve ring while running. |
| Master Chuck and Chuck Adapters: | The 3-7/8" (98.4 mm) I.D. master chuck is an all-welded, reinforced steel and tubing construction. The chuck is equipped with extra long chuck adapter attachment lugs. Standard chuck adapters are available in the following sizes: 1" (25.4 mm) I.D., 1 1/2" (38.1 mm) I.D., 2" (50.8 mm) I.D., 2 1/2" ( 63.5 mm) I.D., 3" (76.2 mm) I.D., 3 1/2" (88.9 mm) I.D. and three channel post adapters for 1.2 to 1.5 lbs/ft, 2 to 2.75 lbs/ft, and 3 to 4 lbs/ft posts. |
| Weight: | 56 lbs (25.4 kg) |
| Fasteners: | S.A.E. grade-5 bolts with belleville lock washers. All fasteners are plated. |
| Air Consumption: | 42 CFM (1.19 m³/min) @ 90 PSI (6.4 kg/cm²) |
| Blows Rate: | 1700 BPM |
Complete tool configurations
Match the model, shank and part number. These are complete tools, not replacement parts.
| Model | Shank / Details | Part Number | Quote |
|---|---|---|---|
| AD-55 | Medium Duty Post Driver 3-7/8" I.D. Master Chuck | AD-55 |












