SPEEDAIRE
SPEEDAIRE 22UX77 4 HP 128 cfm 3000 rpm pneumatic components power
A 4 hp air motor delivering 128 cfm at 3000 rpm with cast iron housing
- Delivers 4 hp output power for demanding pneumatic tasks
- 128 cfm maximum flow rate supports high-volume air applications
- 3000 rpm no-load speed enables rapid cycling performance
- 84 in-lb maximum torque handles heavy-load requirements
- Cast iron housing provides durability in industrial environments
Air Motor 4 HP 128 CFM
The Speedaire 22UX77 is a pneumatic air motor rated at 4 hp with a maximum flow rate of 128 cfm. It operates at a no-load speed of 3000 rpm and delivers peak torque of 84 in-lb. The unit features a cast iron housing and a 5/8 in shaft diameter for industrial power transmission.
Suited for Rotary Drive Applications
This motor suits installations needing reversible CW/CCW rotation at 100 psi maximum pressure. The 1/2 in NPT inlet and face-mount design simplify integration into existing compressed-air systems. Buyers requiring electric drive, hydraulic power, or higher pressure ratings should consider alternative solutions.
128 CFM Flow Rate Decides Fit
The 128 cfm maximum flow rate determines whether the compressed-air supply can sustain continuous operation. Verify that the source compressor meets this volume at 100 psi before purchase. The motor weighs 15.88 lb and includes a muffler for noise reduction.
Highlights
- Delivers 4 hp output power for demanding pneumatic tasks
- 128 cfm maximum flow rate supports high-volume air applications
- 3000 rpm no-load speed enables rapid cycling performance
- 84 in-lb maximum torque handles heavy-load requirements
- Cast iron housing provides durability in industrial environments
Specifications
| Brand | SPEEDAIRE |
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Questions about this item
How do I install the SPEEDAIRE 22UX77 air motor and what alignment step is often missed?
Bolt the face-mount housing using the 5/8 in shaft diameter and 1 3/8 in shaft length, then fit the 1/8 in keyway width key before coupling; skipping the key causes the shaft to spin inside the driven hub.
What maintenance will the SPEEDAIRE 22UX77 need over time?
Lubricate the Grade 40Cr shaft and check the cast-iron housing for paint damage; the spec lists bearing protection as not applicable, so external seals must be inspected for air leaks at the 1/2 in NPT inlet.
What limit appears first when the SPEEDAIRE 22UX77 runs continuously at load?
The 100 psi maximum operating pressure caps torque at 84 in-lb; sustained flow above 128 cfm at 3000 rpm will hit that pressure ceiling before thermal limits become an issue.
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