Castair T10124HC1-S — 10 HP Single-Phase Tandem Air Compressor, 240-Gallon Horizontal
The Castair T10124HC1-S is a 10 horsepower, single-phase tandem air compressor with a 240-gallon horizontal ASME tank — the large-tank version of the 10 HP single-phase tandem lineup. Two cast iron pumps run off a single motor, delivering higher combined CFM output than any single-pump 10 HP unit while maintaining continuous duty capability on standard single-phase power. The 240-gallon tank provides a massive air reserve that significantly reduces compressor cycling frequency and sustains pressure across multiple simultaneous tools.
If your shop runs spray booths, blast equipment, multiple impact tools, or any combination of high-CFM tools simultaneously, the 240-gallon configuration gives you the reserve to handle peak demand without waiting on the compressor to recover between uses.
Technical Specifications
- Model: T10124HC1-S
- Horsepower: 10 HP
- Phase: Single-phase (1-phase)
- Configuration: Tandem — 2 pumps, 1 motor, two-stage
- Pump RPM: 767 RPM
- Tank: 240-gallon horizontal, ASME-certified
- Dimensions (LxWxH): 85 x 30 x 64 inches
- Weight: 1,465 lbs
- Motor Speed: 1,725 RPM industrial with 15% service factor
- Price: $8,023.75
Cast Iron Pump Construction
- All cast iron: Cylinders, heads, crankcase, and valve plates — cast iron throughout for heat dissipation and long service life
- Slow RPM operation: Lower speed means less heat, less noise, and longer life between rebuilds
- Tapered roller bearings: Both ends of each crankshaft for superior support and reduced friction
- Precision steel connecting rods: Automotive-type rod insert bearings at crankshaft and wrist pin for long service life
- Disc and spring valves: Stainless steel — approximately 10x the service life of standard reed valves, easy to service in the field
- 4-ring pistons: Better sealing, higher compression efficiency, less oil carry-over
- Centrifugal unloader: Load-free startup every time — the motor never has to start against tank pressure
Tank, Motor, and Controls
- Powder-coated ASME-certified horizontal tank with channel base
- ASME safety valves — code-compliant pressure relief installed
- Totally enclosed metal belt guard
- Copper discharge and unloader tubes
- Heavy-duty 1,725 RPM industrial motor with 15% service factor
- Magnetic motor starter: Mounted and wired from the factory (S designation)
What's Included
- Complete tandem compressor assembly (pumps, tank, motor, controls)
- Magnetic motor starter — factory mounted and wired
- Cast Air "Right from the Start" Kit
- ASME safety valve(s)
Why a Tandem vs. a Single-Pump Compressor
- Higher combined CFM output: Two pumps filling the tank simultaneously means faster recovery under continuous demand
- Redundancy: If one pump needs service, the other keeps running — a single-pump unit is either all or nothing
- Lower heat per pump: Neither pump runs at maximum stress — cooler operation extends pump life significantly
- Doubled pump service intervals: Runtime hours split between two pumps means each pump sees half the cycles
Shipping and Lead Time
These units ship within two weeks of order placement. Freight delivery time is additional and varies by location. All orders receive a courtesy call to confirm application requirements and ensure you have selected the correct configuration.
10 HP Tandem Lineup — Configuration Reference
- T10112HC1-S — 10 HP, 1-phase, 120 gal, 767 RPM ($6,560.05)
- T10112HC2-S — 10 HP, 1-phase, 120 gal, 420 RPM ($7,478.05)
- T10124HC1-S — 10 HP, 1-phase, 240 gal, 767 RPM ($8,023.75)
- T10124HC2-S — 10 HP, 1-phase, 240 gal, 420 RPM ($9,012.30)
- T10312HC1-S — 10 HP, 3-phase, 120 gal, 767 RPM ($5,660.75)
- T10312HC2-S — 10 HP, 3-phase, 120 gal, 420 RPM ($6,579.60)
- T10324HC1-S — 10 HP, 3-phase, 240 gal, 767 RPM ($7,194.15)
When Does a Shop Need the T10124HC1-S
This unit is the right choice when:
- You have single-phase power and need 10 HP capacity with maximum air storage — 240 gallons provides a substantial reserve
- Your shop operates high-CFM tools simultaneously — spray booths, blast cabinets, multiple impacts running at once
- You want to minimize how often the compressor cycles — the 240-gallon tank extends recovery intervals significantly vs. a 120-gallon unit
- Your operation is in a high-demand environment where continuous tool use requires a large air reserve
Choose the T10112HC1-S instead when: 120 gallons is sufficient for your tool demand and you prefer the lower purchase price.
Step up to the T10124HC2-S when: You want the 240-gallon tank with slower, quieter 420 RPM pump operation — the additional $988 buys significantly lower noise and heat.
Consider the T10324HC1-S when: You have three-phase power — same 240-gallon tank and 767 RPM pumps, but $829 less due to three-phase motor efficiency.
Why Buy From Air Compressor Factory Direct?
- Authorized Cast Air dealer since 2016
- Free shipping included on this order
- Free technical support at 866-217-0063 — call before ordering to confirm phase, tank size, and CFM requirements for your application
- Full Cast Air manufacturer warranty
- Honest guidance: If a different configuration fits your shop better, we will tell you
Call 866-217-0063 for quick answers and help!
