The Castair I1038HC2 is a 10-horsepower, 3-phase industrial air compressor on an 80-gallon horizontal tank with the C2 pump at 758 RPM — the non-starter companion to the I1038HC2-S. If your electrical installation already includes a properly rated magnetic motor starter for a 10HP 3-phase load, or if your electrician is supplying and mounting the starter as part of the panel work, this is the correct version to order. You get the same all-cast-iron C2 pump, the same 80-gallon ASME horizontal tank, and the same 35.0 CFM at 175 PSI output — without paying for a redundant starter.
Starter vs No Starter — What You Need to Know
A 10HP 3-phase motor requires a magnetic motor starter with properly sized overload relays for safe operation. This is not optional — running a 3-phase motor without overload protection risks motor burnout and is a code violation in most jurisdictions. If you are ordering the non-starter version, confirm with your electrician that they are supplying and installing a starter rated for your voltage and motor amperage before the unit ships. If there is any uncertainty, order the I1038HC2-S with the factory-mounted starter instead.
Pump and Machine Features
- All cast iron pump construction — cylinders, heads, crankcase.
- 758 RPM operating speed — slow-speed design for lower operating temperatures and extended pump life.
- Tapered roller bearings at both ends of the crankshaft.
- Steel connecting rods with automotive-type insert bearings — at crankshaft and wrist pin.
- Disc and spring valves — field-serviceable.
- 4-ring pistons — better sealing, less oil carry-over.
- Centrifugal unloader — loadless motor starts.
- 80-gallon horizontal ASME tank — powder coated, channel base, 64x20x46 inches.
- ASME safety valve.
- 1725 RPM industrial motor — 15% service factor minimum.
- Totally enclosed metal belt guard.
- Copper discharge tube or stainless-steel braided flex line.
- Magnetic starter: NOT included — must be sourced and installed separately.
Technical Specifications
- Model Number: I1038HC2
- Horsepower: 10 HP
- Phase: 3-phase
- Tank Capacity: 80 gallons, horizontal
- Pump RPM: 758
- CFM @ 0 PSI: 45.0
- CFM @ 175 PSI: 35.0
- Max Pressure: 175 PSI
- Dimensions (LxWxH): 64 x 20 x 46 inches
- Weight: 770 lbs
- Motor Speed: 1725 RPM
- Motor Service Factor: 15% minimum
- Tank Certification: ASME
- Magnetic Starter: Not included
- Pump Configuration: C2
Why Buy From Air Compressor Factory Direct?
We have specialized in industrial air compressors since 2016. Call us if you need guidance on starter sizing, electrical requirements, or whether this model or the with-starter version is the right call for your installation. Free shipping, free pre-sale technical support, full manufacturer warranty.
Call 866-217-0063 for quick answers and help!
