Castair C1 Two-Stage Air Compressor Pump — 5 HP, 22 CFM, 2-Cylinder In-Line
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 Vendor |
Control & Components
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 SKU |
C1PUMP
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The Castair C1 is a heavy-duty, two-stage cast-iron bare pump rated for 5 HP and 22 CFM, built for industrial and commercial air systems that demand long life and dependable high-pressure performance. Its splash-lubricated, two-cylinder in-line design runs cool at a low 895 RPM for reduced wear and longer service intervals.
Key specifications
- Horsepower: 5 HP
- Air delivery: 22 CFM
- Configuration: Two-stage, 2-cylinder in-line
- Pump speed: 895 RPM
- Built-in centrifugal unloader for loadless start-up
- Lubrication: Splash lubricated
- Oil capacity: 2 qt (synthetic GA10W30)
- Stroke: 3.5 in
- Cooling: Finned cast-iron intercooler & aftercooler for maximum heat dissipation
- Bearings: Tapered roller bearings at both ends of the crankshaft, needle bearings at the wrist pin, and automotive-type rod insert bearings at the crankshaft
- Pistons: 4 rings for higher efficiency and less oil carry-over
- Valves: Disc and spring valves, easily removed from the top without removing the head
Typical applications
An ideal replacement or upgrade pump for two-stage reciprocating air compressors in automotive shops, fabrication, manufacturing, and other commercial and industrial environments that need reliable high-pressure compressed air.
The Castair C1 two-stage air compressor pump pairs a rugged cast-iron build with low-RPM operation and efficient finned cooling, delivering durable 5 HP, 22 CFM performance for demanding shop and industrial duty.
The C1 bare pump is used on the following Chicago Pneumatic piston compressors:
- RCP-C1130G
- RCP-C1330G
- RCP-C1430G
- RCPC581VS
- RCPC583VS4
- RCPC7581VS
- RCPC7583VS4
- RCPC581V
- RCPC583V4
- RCPC7581V
- RCPC7583V
(3.5hp) 506 RPM is approximately 68 DBA
(5hp) 767 RPM is approximately 75 DBA
(7.5 hp) 895 RPM is approximately 82 DBA
Our intake noise silencer adds a 5-7 DBA reduction on this pump, depending on the RPM/model and place of install.
NOTE: Actual product may be different from pictured!
Financing Options
Financing Options
We offer Financing Through Many Different Avenues:
- Affirm is great for smaller purchases. You can do this during checkout.
- Clicklease is a great option for Instant decisions up to 25k. NO Hard credit pull. No Time in Business Required. More information can be found out about it here: https://www.clicklease.com/partner/warthog-air-compressor-store
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AirCompressorStore.com offers a complete selection of air compressors, parts and accessories designed to keep your equipment running reliably and efficiently. Whether you’re servicing a small shop compressor, maintaining an industrial air system, or replacing a worn component in a production environment, our parts are sourced from trusted manufacturers and built to meet the demands of real-world compressed air applications.
