FS-Curtis CA5+ 120G Duplex 5(2)HP Electric Air Compressor #CA5Plus-D
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| Model / Part Number | CA5+ Duplex |
| Horsepower | 5 HP (x2, Duplex) |
| Tank | 120 Gallon Horizontal ASME |
| Airflow | 37 CFM @ 175 PSI |
| Pressure Range | 175 PSI |
| Warranty | 12 months |
FS-Curtis CA5PLUS-D — 5 HP (x2, Duplex) Air Compressor
A shop that's had a single compressor go down mid-shift and watched every bay grind to a halt waiting on air needs a second pump standing by, not another single point of failure that fails at the worst time.
The FS-Curtis CA5PLUS-D is a duplex two-stage reciprocating compressor rated for 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 CA5PLUS-D Is Built For
- ✅ A multi-bay commercial shop that's already had a compressor failure shut down every bay at once, and won't risk that again without a second pump ready to take over
- ✅ An operation comparing the standard CA5-D against this CA5+ version and choosing the lighter, more efficient E57 pump platform for the same duplex redundancy at less shipping weight
- ✅ A shop that's grown past what a simplex unit can support and needs both more combined CFM (37 vs. a single pump's output) and the uptime insurance of a second pump
- ✅ 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
- ✅ An owner standardizing on the CA5+ pump platform across a multi-bay operation for common parts and service, choosing the duplex configuration for the highest-demand location
What the CA5PLUS-D Is NOT Built For
- ❌ Single-bay or small shops where a simplex unit already covers the air draw
- ❌ Budget-conscious buyers — duplex units cost significantly more than simplex at the same HP
- ❌ Shops with limited floor space — the 120-gallon duplex tank has a larger footprint than a single unit
What Makes the CA5PLUS-D Different
Commercial 2-Stage Pump
The CA5PLUS-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 37 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
Single or Three-Phase, 230V/460V options available. Confirm your panel and breaker sizing with an electrician before delivery.
- Efficient CA5+ pump redundancy
- 37 CFM combined output
- Multi-bay commercial shops
- Single-bay / small shops
- Tight floor space
CA5PLUS-D vs. Atlas AF9-120H (7.5 HP, 120 Gal Horizontal) — Which Compressor Is Right for Your Shop?
| Decision Point | CA5PLUS-D | Atlas AF9-120H (7.5 HP, 120 Gal Horizontal) |
|---|---|---|
| Horsepower / Tank | 5 HP x2 / 120 Gal Horizontal | 7.5 HP / 120 Gal Horizontal |
| CFM @ 175 PSI | 37 CFM | 22 CFM @ 175 PSI |
| Redundancy | Duplex — two independent pumps, built-in backup | Simplex — single higher-HP pump, no built-in redundancy |
| Best fit | Shops needing uptime guarantees / continuous multi-bay draw | Shops wanting higher single-pump HP without duplex cost |
Choose the CA5+ D when redundancy matters and you want the more efficient CA5+ pump platform. Choose the Atlas AF9-120H for a simpler single-pump setup at a lower price if redundancy isn't required. Both stay inside Alamo’s catalog — call (844) 480-6059.
Full Specifications — CA5PLUS-D
| Model / Part Number | CA5+ Duplex |
| Horsepower | 5 HP (x2, Duplex) |
| Pump | E57 (x2), Cast-Iron, Two-Stage |
| Configuration | Duplex Two-Stage Reciprocating |
| Tank | 120 Gallon Horizontal ASME |
| Airflow | 37 CFM @ 175 PSI |
| Pressure Range | 175 PSI |
| Motor / Electrical | Single or Three-Phase, 230V/460V options available |
| Phase / Hz / Voltage |
Single Phase: 1/60/230V (FCA05E57D1S-A2L1XX) Three Phase: 3/60/200-208V (FCA05E57D1S-A9L1XX) 3/60/230V (FCA05E57D1S-A3L1XX) 3/60/460V (FCA05E57D1S-A4L1XX) |
| Overall Dimensions | 78" L x 27" W x 52" H |
| Shipping Weight | 910 lbs |
| Warranty | 12 months |
⚠️ Setup Requirements
- Electrical: Single or 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: 910 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 — CA5PLUS-D
FS-Curtis backs the CA5PLUS-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 CA5PLUS-D
Why Buy the CA5PLUS-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. 5 HP (x2, Duplex), 120 Gallon Horizontal ASME tank, 37 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 CA5PLUS-D or the Atlas AF9-120H (7.5 HP, 120 Gal Horizontal) 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