The Castair I1033HC2-S is a 10-horsepower, 3-phase industrial air compressor on a 30-gallon horizontal tank with the C2 pump configuration and a factory-mounted magnetic motor starter. The 30-gallon tank makes this the most compact offering in the 10HP 3-phase horizontal line — built for installations where space is the primary constraint: service trucks, tight utility rooms, or supplemental compressor setups where a remote or secondary tank provides additional storage. Note that manufacturer specifications for this specific model were not publicly listed on the Castair product page at the time this description was written — contact us for confirmed specs before ordering.
Who Needs This Configuration
The horizontal tank orientation keeps the height low — useful for installations under workbenches, in service vans, or in spaces with overhead constraints. The 10HP 3-phase motor requires a proper 3-phase electrical service, which limits this to commercial and industrial installations. The factory-mounted magnetic motor starter is included, so your electrician just needs to land the 3-phase power leads and the unit is ready to run.
If you need more air storage in the same HP range, look at the I1038HC2-S (80-gallon horizontal) or the I10312HC2-S (120-gallon horizontal). If you are on single-phase power, the comparable 10HP single-phase horizontal models are the I1018HC2-S (80-gallon) and I10112HC2-S (120-gallon).
Pump Features — Castair Industrial C2 Configuration
The C2 designation indicates a medium-frame cast iron pump. All Castair industrial pumps share these core features:
- All cast iron construction — cylinders, heads, crankcase. Handles the heat and wear of continuous commercial service.
- Slow RPM design — Castair runs their industrial pumps from 420 to 995 RPM depending on configuration. Slower than typical compressor pumps, which means less heat, less wear, and longer service life.
- Tapered roller bearings at both ends of the crankshaft — correct bearing selection for the thrust loads of a reciprocating pump.
- Precision steel connecting rods with automotive-type insert bearings — at crankshaft and wrist pin. Serviceable and replaceable.
- Disc and spring valves — reliable and field-serviceable without major disassembly.
- 4-ring pistons — better sealing efficiency and less oil carry-over than 2-ring pistons.
- Centrifugal unloader — starts under no load every time, protecting the motor.
Tank and Motor
- 30-gallon horizontal ASME-certified tank — powder coated with channel base for floor or rack mounting.
- ASME safety valve — code-compliant and properly rated.
- 1725 RPM industrial motor — 15% service factor minimum.
- Totally enclosed metal belt guard.
- Copper discharge tube or stainless-steel braided flex line.
- Magnetic motor starter included — factory mounted and wired.
10HP 3-Phase Horizontal Tank Lineup
- I1033HC2-S (this unit) — 10HP, 3-phase, 30-gallon horizontal, C2 pump, with starter. Most compact option.
- I1038HC2-S — 10HP, 3-phase, 80-gallon horizontal, C2 pump (758 RPM), 35.0 CFM @175 PSI, 64x20x46 in., 770 lbs, with starter.
- I10312HC2-S — 10HP, 3-phase, 120-gallon horizontal, C2 pump (758 RPM), 35.0 CFM @175 PSI, 69x24x50 in., 860 lbs, with starter.
- I10312HC3-S — 10HP, 3-phase, 120-gallon horizontal, C3 pump (570 RPM, larger/slower), 35.0 CFM @175 PSI, 69x24x50 in., 1025 lbs, with starter.
Technical Specifications
- Model Number: I1033HC2-S
- Horsepower: 10 HP
- Phase: 3-phase
- Tank Capacity: 30 gallons, horizontal
- Pump Configuration: C2
- Max Pressure: 175 PSI
- Motor Speed: 1725 RPM
- Motor Service Factor: 15% minimum
- Tank Certification: ASME
- Magnetic Starter: Included (factory mounted)
- Note: Detailed CFM, RPM, dimensions, and weight specifications not publicly listed by manufacturer for this model. Contact us for confirmed specifications before ordering.
Why Buy From Air Compressor Factory Direct?
We have specialized in industrial air compressors since 2016. If you are unsure whether a 30-gallon tank is the right fit or whether you should step up to the 80-gallon horizontal, call us and we will walk through the application with you. Free shipping, free pre-sale technical support, and full manufacturer warranty on every unit.
Call 866-217-0063 for quick answers and help!
