Cast Air Industrial Series Heavy Duty Shop Air Compressor — Model I10312HC2-S
The Cast Air I10312HC2-S is a 10 HP, 120-gallon horizontal industrial compressor at ,659 — the most affordable 10 HP / 120-gallon configuration in Cast Air's Industrial Series. The 3-cylinder pump designation indicates a higher-displacement pump than 2-cylinder alternatives at the same horsepower, which translates to higher CFM output for the same motor size.
For shops that need maximum air volume from a single-phase 10 HP compressor, the 3-cylinder pump is the specification to prioritize. More cylinders mean more air moved per revolution, which shortens tool recovery times and allows more simultaneous air tool use without significant pressure drop across the shop.
Who This Compressor Is For
- High-volume single-phase shops needing maximum CFM from a 10 HP unit — body shops, truck service centers, tire operations
- Operations running multiple air tools simultaneously where pressure consistency across the shop is critical
- Shops at the limit of a smaller compressor experiencing slow recovery, pressure drop during spray work, or tools slowing under load
- Value-driven buyers who want the largest tank at this HP with maximum pump output at the lowest price in the lineup
Key Features
- 10 HP Single-Phase Motor: Industrial-grade 10 HP motor on standard single-phase 230V service — no 3-phase electrical upgrade required
- 120-Gallon Horizontal Tank: Maximum storage at this HP level — extended run time between motor cycles under heavy demand
- 3-Cylinder Cast Iron Pump: Three-cylinder horizontal cast iron pump delivers higher CFM than 2-cylinder equivalents at the same horsepower — more air volume per minute means more simultaneous tool capacity
- 2-Stage Compression: High-pressure, high-efficiency two-stage compression — delivers air at elevated working pressures with less heat than single-stage designs
- Industrial Series Construction: Commercial-grade throughout — engineered for daily professional shop use
- Stationary Configuration: Permanent installation design
Why 3-Cylinder Pump Output Matters
A 3-cylinder pump displaces more air per revolution than a 2-cylinder pump running at the same motor RPM and HP. The direct result is higher CFM — the metric that determines how many tools you can run simultaneously and how fast the tank recovers after a heavy air draw. If your shop runs a sandblaster, impact wrench, and spray gun at the same time — or has technicians in multiple bays drawing air concurrently — the 3-cylinder pump maintains pressure where a 2-cylinder equivalent would show a performance gap.
Understanding the I10312HC2-S Model Number
- I — Industrial Series
- 10 — 10 HP motor
- 3 — 3-cylinder pump
- 12 — 120-gallon tank
- HC — Horizontal Cast iron pump
- 2 — 2-stage compression
- -S — Stationary
Comparing 10 HP / 120-Gallon Options
- I10312HC2-S (this unit) — ,659 — 3-cyl, single phase, horizontal — best value for CFM output
- I10112HC2-S — ,008 — 2-cyl, single phase, horizontal
- I10112VC2-S — ,473 — 2-cyl, single phase, vertical
- I10312HC3-S — ,111 — 3-cyl, 3-phase, horizontal
- I10312VC3-S — ,573 — 3-cyl, 3-phase, vertical
Installation Requirements
- Electrical: Single-phase 230V service — 10 HP single phase typically draws 50–60A at 230V; confirm breaker and wire capacity
- Floor: Level concrete for permanent installation
- Clearance: Adequate clearance on all sides for cooling airflow and service access
- Condensate: Regular tank drain maintenance — plan for auto-drain or manual schedule
Note: Exact CFM ratings, maximum PSI, physical dimensions, and shipping weight were not available from Cast Air's website at time of listing. Contact us at 866-217-0063 for current technical specifications before ordering.
Why Buy From OEM Diagnostic Tools?
OEM Diagnostic Tools has supplied professional shop equipment since 2016. We help you match the compressor to your actual air demand — tank size, pump cylinders, phase, and HP all interact in ways that matter for daily shop performance. Free shipping, free pre-sale technical support at 866-217-0063, and the full Cast Air manufacturer warranty on every unit. Call us before you order and we'll confirm this is the right fit for your operation.
Call 866-217-0063 for quick answers and help!
