Unoair UH30D Single-Stage Air Compressor Pump, 2 to 5 HP, 8 CFM at 100 PSI
The UH30D is the small-frame member of the Unoair UH30 family: same cast-iron single-stage twin-cylinder layout, but built to hang off a 56 or 145 frame motor rather than a 182. That makes it the replacement pump for the lighter Unoair portables and for any 2 to 5 HP build where the motor you already own is a standard small frame.
Key specifications
- Horsepower: 2 to 5 HP
- Delivery: 8 CFM at 100 PSI
- Stages and cylinders: single stage, 2 cylinder
- Construction: cast iron
- Motor frame: suitable for 56 and 145 frame motors
- Weight: 53 lb
UH30D or UH30
The frame is the deciding spec. The UH30D takes 56 and 145 frame motors and makes 8 CFM at 100 PSI. The standard UH30 (AirComParts U1261) takes a 182 frame motor and makes 13.8 CFM. Measure the motor shaft height and the mounting bolt pattern before ordering, because the two pumps are not interchangeable on a frame basis even though they share a model name. ACP lists this one as the slotted version, which is how the mounting accommodates the smaller frames.
Service notes
Check oil before every run and change it on the manufacturer's schedule. Keep the intake filter clean. Single stage means this pump is happiest below 135 PSI; asking a single-stage pump to make and hold high pressure is what burns valves and rings.
Typical applications
Replacement pump for Unoair portables and shop-cart machines, 2 to 5 HP single-stage builds on 56 or 145 frame motors, farm and ranch compressors, and service-truck air.
The Unoair UH30D single-stage air compressor pump delivers 8 CFM at 100 PSI on 2 to 5 HP, in cast iron with two cylinders, for 56 and 145 frame motors.
NOTE: Actual product may be different from pictured!
Financing Options
Financing Options
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