FS-Curtis ML5 120G 5HP(2) Duplex Tank Mounted Electric Air Compressor #ML5-D
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| Model / Part Number | ML5 Duplex |
| Horsepower | 5 HP (x2, Duplex) |
| Tank | 120 Gallon Horizontal ASME |
| Airflow | 38.2 CFM @ 175 PSI |
| Pressure Range | 175 PSI |
| Warranty | 12 months |
FS-Curtis ML5-D — 5 HP (x2, Duplex) Air Compressor
A tech is standing next to a dead compressor at 7 AM on a Monday, and every bay in the shop is waiting on air — a single-pump failure just cost the whole crew the start of the week, and the owner is done betting the shop's morning on one pump.
The FS-Curtis ML5-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 ML5-D Is Built For
- ✅ A multi-bay shop that's had a single compressor fail and stop the whole crew cold, and wants a second independent pump so one bad morning doesn't happen again
- ✅ A commercial operation running enough simultaneous air draw that 38.2 CFM combined output covers peak demand comfortably, with headroom to spare
- ✅ A shop that can service one pump during business hours without shutting down air to the rest of the building
- ✅ An owner who's priced out a simplex ML5 and decided the redundancy is worth the extra cost for a shop that can't afford downtime
- ✅ A fleet-maintenance or multi-tech facility standardizing on FS-Curtis's ML Series for parts and service commonality
What the ML5-D Is NOT Built For
- ❌ Single-bay or lighter-demand shops where a simplex ML5-SH or ML5-SV already covers the air draw
- ❌ Budget-conscious buyers — duplex costs meaningfully more than simplex at the same HP
- ❌ Shops with limited floor space — the 120-gallon duplex tank has a larger footprint than a simplex unit
What Makes the ML5-D Different
Commercial 2-Stage Pump
The ML5-D uses a D96 (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 38.2 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.
- Built-in pump redundancy
- 38.2 CFM combined output
- Multi-bay shops that can't afford downtime
- Single-bay / lighter-demand shops
- Budget-first buyers
ML5-D vs. FS-Curtis ML5-SH (5 HP, Simplex) — Which Compressor Is Right for Your Shop?
| Decision Point | ML5-D | FS-Curtis ML5-SH (5 HP, Simplex) |
|---|---|---|
| Horsepower / Tank | 5 HP x2 / 120 Gal Horizontal | 5 HP / 80 Gal Horizontal |
| CFM @ 175 PSI | 38.2 CFM combined | 19.1 CFM |
| Redundancy | Duplex — two independent pumps, built-in backup | Simplex — single pump, no built-in redundancy |
| Best fit | Shops that can't tolerate a compressor going down | Shops where redundancy isn't a hard requirement |
Choose the ML5-D when a compressor failure stopping the whole shop is not an option. Choose the ML5-SH for a simpler, lower-cost setup if redundancy isn't required. Both stay inside Alamo’s catalog — call (844) 480-6059.
Full Specifications — ML5-D
| Model / Part Number | ML5 Duplex |
| Horsepower | 5 HP (x2, Duplex) |
| Pump | D96 (x2), Cast-Iron, Two-Stage |
| Configuration | Duplex Two-Stage Reciprocating |
| Tank | 120 Gallon Horizontal ASME |
| Airflow | 38.2 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 (FML05D96D1S-A2L1XX) Three Phase: 3/60/200-208V (FML05D96D1S-A9L1XX) 3/60/230V (FML05D96D1S-A3L1XX) 3/60/460V (FML05D96D1S-A4L1XX) |
| Overall Dimensions | 76" L x 29" W x 56" H |
| Shipping Weight | 1300 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: 76" L x 29" W x 56" 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: 1300 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 — ML5-D
FS-Curtis backs the ML5-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 ML5-D
Why Buy the ML5-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), a 120 gallon horizontal ASME tank, 38.2 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 ML5-D or the FS-Curtis ML5-SH (5 HP, Simplex) 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