FS-Curtis CA7.5 120G Duplex 7.5(2)HP Electric Air Compressor #CA7.5-D
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| Model / Part Number | CA7.5 Duplex |
| Horsepower | 7.5 HP (x2, Duplex) |
| Tank | 120 Gallon Horizontal ASME |
| Airflow | 46.4 CFM @ 175 PSI |
| Pressure Range | 175 PSI |
| Warranty | 12 months |
FS-Curtis CA7.5-D — 7.5 HP (x2, Duplex) Air Compressor
A shop running 7.5 HP simplex units that's outgrown a single pump's output during peak demand needs the redundancy of a second pump, not just more tank capacity bolted onto the same single point of failure.
The FS-Curtis CA7.5-D is a duplex two-stage reciprocating compressor rated for 7.5 HP (x2, Duplex) with a 120 gallon horizontal ASME tank, built for shops and commercial operations that need compressed air on tap all day without paying for accessories they don’t need.
Who the CA7.5-D Is Built For
- ✅ A multi-bay shop already running 7.5 HP CA7.5 simplex units elsewhere that's outgrown a single pump during peak multi-tech demand and needs both more air volume and backup redundancy
- ✅ An operation that's had a compressor go down mid-shift and watched every bay stop billing at once, wanting a second pump ready to take over instead of risking that again
- ✅ A facility manager who's tired of scheduling maintenance downtime around a single compressor and wants one pump serviceable while the other keeps the shop running
- ✅ A shop planning to add more bays or techs in the next year and wanting real headroom now instead of another upgrade cycle
- ✅ An owner standardizing on FS-Curtis's CA line across a multi-bay operation, stepping up to duplex at the 7.5 HP tier for the busiest location
What the CA7.5-D Is NOT Built For
- ❌ Single-bay or small shops where a simplex CA7.5-V/H already covers the air draw
- ❌ Budget-conscious buyers — duplex units cost significantly more than a simplex configuration at the same HP
- ❌ Shops with limited floor space — the 120-gallon duplex tank has a larger footprint than a single 80-gallon unit
What Makes the CA7.5-D Different
Commercial 2-Stage Pump
The CA7.5-D uses an E57 (x2), Cast-Iron, Two-Stage pump built for daily, all-day duty cycles — not a hobby-grade single-stage unit that struggles under continuous shop use.
CFM & Pressure Output
Delivers 46.4 CFM @ 175 PSI and holds pressure up to 175 PSI, enough headroom to run impact wrenches, tire equipment, and paint tools without the tank running dry.
Power Requirements
Three-Phase, 230V/460V options available. Confirm your panel and breaker sizing with an electrician before delivery.
- Built-in pump redundancy
- Multi-bay continuous demand
- Zero-downtime commercial shops
- Single-bay / small shops
- Tight floor space
CA7.5-D vs. FS-Curtis CA7.5-V (7.5 HP Simplex, 80 Gal) — Which Compressor Is Right for Your Shop?
| Decision Point | CA7.5-D | FS-Curtis CA7.5-V (7.5 HP Simplex, 80 Gal) |
|---|---|---|
| Horsepower / Tank | 7.5 HP x2 / 120 Gal Horizontal | 7.5 HP / 80 Gal Vertical |
| CFM @ 175 PSI | 46.4 CFM | 23.2 CFM |
| Redundancy | Duplex — two independent pumps, built-in backup | Simplex — single pump, no built-in redundancy |
| Best fit | Shops needing uptime guarantees / continuous multi-bay draw | Shops wanting a simpler, lower-cost single-pump setup |
Choose the CA7.5-D when redundancy matters more than a lower up-front cost — one pump can fail and the shop keeps running. Choose the CA7.5-V for a simpler simplex setup at a lower price point if uptime redundancy isn't a hard requirement. Both stay inside Alamo’s catalog — call (844) 480-6059.
Full Specifications — CA7.5-D
| Model / Part Number | CA7.5 Duplex |
| Horsepower | 7.5 HP (x2, Duplex) |
| Pump | E57 (x2), Cast-Iron, Two-Stage |
| Configuration | Duplex Two-Stage Reciprocating |
| Tank | 120 Gallon Horizontal ASME |
| Airflow | 46.4 CFM @ 175 PSI |
| Pressure Range | 175 PSI |
| Motor / Electrical | Three-Phase, 230V/460V options available |
| Phase / Hz / Voltage |
Single Phase: 1/60/230V (FCA07E57D1S-A2L1XX) Three Phase: 3/60/200-208V (FCA07E57D1S-A9L1XX) 3/60/230V (FCA07E57D1S-A3L1XX) 3/60/460V (FCA07E57D1S-A4L1XX) |
| Overall Dimensions | 78" L x 27" W x 52" H |
| Shipping Weight | 930 lbs |
| Warranty | 12 months |
⚠️ Setup Requirements
- Electrical: Three-Phase, 230V/460V options available; have an electrician confirm your panel capacity before delivery.
- Floor space: 78" L x 27" W x 52" H footprint; plan clear access on at least two sides for maintenance and tank drain.
- Ventilation: Locate in a dry, ventilated area away from dust and moisture to protect the pump and tank.
- Weight: 930 lbs shipping weight — confirm your floor/dock can receive and position the unit.
- Setup: Installation is available as a quoted service (piping, electrical tie-in, functional test) — it’s not included in the purchase price. Call (844) 480-6059 for an install quote if you’d like Alamo’s crew to set it up.
FS-Curtis Warranty — CA7.5-D
FS-Curtis backs the CA7.5-D with a 1-year parts-only warranty.
| Component | Coverage Term |
|---|---|
| Tank & pump | 1 year parts |
| Motor & electrical components | 1 year parts |
| Wear items (belts, filters, gaskets) | Not covered (consumable) |
Warranty service is through Alamo Equipment & Service — call (844) 480-6059 instead of waiting on a manufacturer hotline. Coverage is subject to FS-Curtis warranty terms, conditions, and requirements.
Frequently Asked Questions — FS-Curtis CA7.5-D
Why Buy the CA7.5-D from Alamo Equipment & Service?
- Installation available. Buying online gets you the compressor — piping and electrical tie-in are an extra-charge service. We have the crews to install it and can quote that separately; call (844) 480-6059 for a quote.
- We service it. These compressors need preventative maintenance up to 4x a year per the manufacturer — oil changes, belt and air filter checks, contactor and electrical inspection. Call (844) 480-6059 for maintenance, repairs, or support — and if you ever need warranty work, we register your equipment with the manufacturer and handle the claim directly, so you’re not stuck navigating vendor support on your own.
- We size it with you. 7.5 HP (x2, Duplex), 120 Gallon Horizontal ASME tank, 46.4 CFM @ 175 PSI — we’ll confirm this matches your shop’s actual air draw before you order.
- Free shipping. Ships free to the 48 contiguous states.
- Expert comparison help. Not sure if the CA7.5-D or the FS-Curtis CA7.5-V (7.5 HP Simplex, 80 Gal) is the better fit? We’ll walk you through it.
A shop buying from a pure e-commerce retailer gets a box. A shop buying from Alamo gets a partner.
Shipping Rates and Delivery Estimates: Shipping is FREE to the 48 contiguous United States.
Shipment Processing Time: All orders are processed within [2–3] business days of receipt, excluding weekends and holidays. Orders are not processed or shipped from Friday at 12 pm CST through Sunday or on holidays. During periods of high order volume, shipments may be delayed by a few days. Customers will be notified via email or phone in the event of significant delays.
See the attached document for FS CURTIS WARRANTY