Castair I718VC1-S: 7.5 HP Single-Phase Industrial Air Compressor, 80-Gallon Vertical Tank
The Castair I718VC1-S is a 7.5 horsepower, single-phase industrial reciprocating air compressor on an 80-gallon vertical ASME tank with a factory-mounted aftercooler. This is the vertical entry point in the 7.5 HP single-phase Castair industrial lineup — the C1 pump runs at 895 RPM and delivers 32.4 CFM free air, 24.8 CFM at 175 PSI.
At 655 lbs and with a compact 32x24x74 inch footprint, the I718VC1-S is the lightest and most space-efficient unit in the 7.5 HP 1-phase vertical lineup. The vertical tank maximizes storage capacity within a small floor footprint — shops with adequate ceiling height prefer vertical tanks because they take up less floor space than horizontal equivalents with the same tank capacity.
Who This Compressor Is For
- Single-phase shops that want a vertical tank to save floor space
- One- or two-technician operations running general automotive service tools
- Shops where moisture control is needed — the factory aftercooler handles that
- Buyers stepping up from consumer-grade compressors to a proper industrial cast iron unit
- Applications where 24.8 CFM at 175 PSI covers peak tool demand
Industrial Cast Iron Pump — C1 Configuration
- All cast iron construction: Cylinder, head, crankcase
- Pump speed: 895 RPM (C1 configuration)
- Tapered roller bearings: Both ends of crankshaft for superior support
- Precision steel connecting rods: Automotive-type insert bearings at crankshaft and wrist pin
- Disc and spring valves: Serviceable, efficient, proven in industrial service
- 4-ring pistons: Better sealing, reduced oil carryover vs. 2-ring designs
- Centrifugal unloader: Loadless startup every cycle — no starting against full head pressure
Technical Specifications
- Model: I718VC1-S
- Horsepower: 7.5 HP
- Phase: Single-phase (1-phase)
- Voltage: 230V
- Tank capacity: 80 gallons
- Tank type: Vertical (VC)
- Pump RPM: 895
- Free air delivery (CFM @ 0 PSI): 32.4 CFM
- Delivery at working pressure (CFM @ 175 PSI): 24.8 CFM
- Maximum working pressure: 175 PSI
- Dimensions (L x W x H): 32 x 24 x 74 inches
- Weight: 655 lbs
- Aftercooler: Factory-mounted beltguard aftercooler included (#BGAC1M, 35 CFM rated)
Available Configurations in the 7.5 HP 1-Phase Vertical Lineup
- I718VC1-S (this unit) — C1 pump, 895 RPM, 32.4/24.8 CFM, 32x24x74 in., 655 lbs — smallest footprint, lightest unit
- I718VC2-S — C2 pump, 585 RPM, 35.0/28.1 CFM, 40x24x74 in., 760 lbs — quieter, more CFM, larger base
- I7112VC2-S — C2 pump, 585 RPM, 35.0/28.1 CFM, 120-gal vertical, 44x30x75 in., 850 lbs — maximum 1-phase tank
When Does a Shop Need This vs. Stepping Up or Down?
Choose the I718VC1-S if: Floor space is at a premium, you have adequate ceiling height, and your peak demand fits within 24.8 CFM at 175 PSI. Right call for a single-technician shop doing general service — tire changes, impact wrenches, air ratchets, occasional spray work.
Step up to I718VC2-S if: Noise matters in your shop environment or you need the extra CFM (28.1 vs. 24.8 at 175 PSI) that the C2 pump provides.
Step up to I7112VC2-S if: Multiple technicians share the same air supply and you need 120 gallons of storage to handle peak demand without constant compressor cycling.
Why Buy From Air Compressor Factory Direct?
We carry the complete Castair industrial series. Call us and we will walk you through the C1 vs. C2 pump decision, confirm whether an 80-gallon or 120-gallon tank fits your shop demand, and help you select the right factory options. Free shipping on qualifying orders. Free tech support before and after the sale. Full manufacturer warranty on every Castair industrial unit.
Call 866-217-0063 for quick answers and help!
