Heavy Duty Shop Tandem - Model No.: T10312HC2-S

Castair Heavy Duty Shop Tandem Air Compressor — Model T10312HC2-S

The Castair T10312HC2-S is a 10-horsepower, two-stage, tandem air compressor built for heavy-duty shop environments. This is a cast iron pump compressor — not aluminum, not oil-less — running at a slow 420 RPM for quiet operation and long service life. If you are outfitting a diesel shop, truck bay, tire shop, or any commercial facility that needs consistent high-volume compressed air, this is the type of compressor that will still be running 20 years from now.

Specifications

Cast Iron Pump Construction

Castair has been building compressors since 1991 with one philosophy: cast iron, not aluminum. Their pumps are oil-lubricated, not oil-less, and run at very slow RPMs. This combination means quieter operation, less heat buildup, and significantly longer service life compared to high-RPM aluminum pump compressors. Here is what is inside:

• All Cast Iron Construction: Cylinders, heads, and valve plates are cast iron for heat dissipation and durability
• Slow RPM (420 RPM): Lower speed means less wear, less noise, and longer life between rebuilds
• Tapered Roller Bearings: Both ends of the crankshaft ride on tapered roller bearings for superior support and reduced friction
• Precision Steel Connecting Rods: Automotive-type rod insert bearings at the crankshaft and bearings at the wrist pin for long service life
• Disc and Spring Valves: Easy to service, higher efficiency, and more reliable than reed valves
• 4-Ring Pistons: Better sealing means higher compression efficiency and less oil carry-over into the air supply
• Centrifugal Unloader: Ensures load-less startup every time — the compressor never has to start against pressure

Tank, Motor, and Controls

• ASME-Rated Tank: 120-gallon horizontal tank with powder coat finish and channel mounting
• ASME Safety Valves: Code-compliant pressure relief protection
• Metal Belt Guard: Totally enclosed for safety
• Copper Discharge and Unloader Tube: Resists corrosion and conducts heat away from compressed air
• Heavy-Duty Industrial Motor: 1725 RPM with a full 15% service factor — this motor is rated to continuously deliver 15% above nameplate power without overheating

Tandem Configuration

The tandem setup runs two pump heads off a single motor. This gives you higher CFM output while keeping the system compact. The two-stage compression design runs air through a low-pressure cylinder first, intercools it, then compresses it again in a high-pressure cylinder. Two-stage compressors deliver more air at higher pressures with less heat buildup than single-stage units of the same horsepower.

Included with Every Tandem Series Compressor

• Right from the Start Kit: Included with all Tandem Series piston-driven compressors — contains everything needed for initial setup

Ordering and Shipping

• Ships within two weeks of order placement (it will not arrive within two weeks — it will ship within two weeks)
• All orders receive a courtesy call to confirm conditions and application to make sure the correct product has been purchased
• This is a freight item due to the 1,275 lb weight — contact us for shipping details to your location

"Castair. Compressors Built Like They Used to Be."

Call 866-217-0063 for quick answers and help!