Castair I1013HC2-S — 10 HP Single-Phase Industrial Air Compressor, Horizontal Tank with Mounted Starter
The Castair I1013HC2-S is a 10 HP single-phase industrial air compressor with a horizontal ASME tank and factory-mounted magnetic motor starter. This unit is built around Castair's cast iron two-stage pump design — the same all-cast-iron construction, slow pump RPM, tapered roller bearings, and centrifugal unloader used across the entire Industrial Series lineup.
Note on specifications: Castair's published Industrial Series table does not include a standard entry for this exact model number. The exact tank capacity, pump RPM, CFM output, dimensions, and weight for this configuration were not confirmed in manufacturer documentation at time of writing. Call us at 866-217-0063 for current confirmed specifications, pricing, lead time, and availability for this model before purchasing.
Cast Iron Pump Engineering — Why This Matters for Shop Longevity
Every Castair Industrial Series compressor is built around their oversized cast iron pump. Here is what separates these from lighter-duty machines:
- All cast iron construction — cylinder heads, crankcase, and cylinders are cast iron throughout. Cast iron manages heat better than aluminum and wears far more slowly under continuous load.
- Tapered roller bearings at both ends of the crankshaft — not ball bearings. Tapered rollers handle both radial and thrust loads simultaneously, which is exactly what a reciprocating pump crankshaft sees in operation.
- Precision steel connecting rods with automotive-type insert bearings — at both the crankshaft journal and the wrist pin. These are the same bearing design used in automotive engines. They are replaceable when worn — not a throwaway assembly.
- Disc and spring valves — simpler to service than reed valves, more efficient at high discharge pressures, and more reliable over years of cycling.
- 4-ring pistons — two extra rings versus typical 2-ring piston designs. Better compression sealing, significantly less oil carry-over into the air stream.
- Centrifugal unloader — the pump starts unloaded on every cycle without exception. This reduces motor starting current, reduces wear on the motor and belts, and eliminates the hard-start problem common in compressors that attempt to restart against pressure.
Tank, Motor, and Controls
- ASME-coded steel tank — powder-coated for corrosion resistance. ASME certification means the tank was designed and tested to a recognized pressure vessel standard, not just stamped with a number.
- ASME safety valve — factory-installed.
- Metal belt guard, totally enclosed — not a plastic cover.
- Copper discharge and unloader tubing or stainless-steel braided flex line — not plastic hose or rubber.
- Heavy-duty 1,725 RPM industrial motor with a minimum 15% service factor. This means the motor can sustain loads above its nameplate rating without tripping. In a shop where the compressor runs all day, the service factor is not a marketing number — it is the difference between a motor that lasts a decade and one that burns up in two years.
What We Know About This Configuration
- 10 HP motor — single-phase, 1,725 RPM industrial motor with full 15% service factor
- Horizontal tank orientation — channel base mount, lower profile than vertical equivalent
- C2 two-stage cast iron pump — same pump family as I1018HC2-S and I10112HC2-S
- Factory-mounted magnetic starter — included, provides overload and single-phase protection
- ASME tank certification — all Castair Industrial Series tanks are ASME coded
Related Confirmed Models for Comparison
- I1018HC2-S — 10 HP, 1-phase, 80-gal horizontal, C2, 758 RPM, 45.0/35.0 CFM, 64x20x48 in., 780 lbs, w/starter
- I10112HC2-S — 10 HP, 1-phase, 120-gal horizontal, C2, 758 RPM, 45.0/35.0 CFM, 69x24x50 in., 875 lbs, w/starter
What's in the Box
- Castair I1013HC2-S compressor assembly (pump, motor, tank, factory-assembled)
- Factory-mounted and wired magnetic motor starter
- ASME safety valve (installed)
- Pressure switch (installed)
- Metal belt guard (installed)
- Discharge tubing (installed)
- Operator documentation
Factory-installed options available on this unit include: low oil shutdown control (#6304M), hour meter (#HRM75M for 230V or #HRM460M for 460V), air-operated auto drain (#ADVSM), electronic auto drain (#SDV03M), dual controls (#DC2 for C2 pumps), intake noise silencer (#SA100x2M for C2/C3), belt tensioner (#215DM for 10 HP), time delay (#TD100M for 230V), vibration isolation pads (#VP1004), beltguard aftercooler (#BGAC1M — 35 CFM, appropriate for 10 HP), and Right from the Start Kit (#RFS001 for C1/C2). Ordering all asterisk-marked options qualifies for 10% discount on options. Ask us about pre-configured option packages.
Technical Specifications
- Model: I1013HC2-S
- Horsepower: 10 HP
- Phase: 1-phase (single-phase)
- Tank orientation: Horizontal (channel base)
- Pump type: C2 (two-stage cast iron)
- Max working pressure: 175 PSI
- Motor speed: 1,725 RPM
- Motor service factor: 15% minimum
- Tank certification: ASME
- Starter: Factory-mounted magnetic motor starter (included)
- Full specs (CFM, RPM, dimensions, weight): Contact us at 866-217-0063 for confirmed manufacturer data
- Manufacturer: Castair (Cast Air Inc., Spicer, MN)
Why Buy From Air Compressor Factory Direct?
We have been selling industrial air compressors since 2016 and carry the full Cast Air Industrial Series lineup. When you call us, you reach someone who can tell you whether the C2 or C3 pump is right for your application, what electrical service you need, which options are worth adding, and whether horizontal or vertical tank orientation fits your floor plan. We offer free shipping on qualifying orders, full manufacturer warranty support, and straight talk about which unit fits your shop — not a push toward the most expensive option.
Call 866-217-0063 for quick answers and help!
