FS-Curtis OL7.5 120G Horiz 7.5HP Simplex Oil-less Air Comp #OL7.5
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| Model / Part Number | OL7.5 Simplex |
| Horsepower | 7.5 HP |
| Tank | 120 Gallon Horizontal ASME |
| Airflow | 23.1 CFM @ 100 PSI |
| Pressure Range | 100 PSI |
| Warranty | 12 months |
FS-Curtis OL7.5 — 7.5 HP Air Compressor
A food-processing line running more pneumatic equipment than a smaller oil-less compressor can support needs the extra CFM of the 7.5 HP tier without introducing any contamination risk into the product stream.
The FS-Curtis OL7.5 is a simplex oil-less reciprocating compressor rated for 7.5 HP with a 120 gallon horizontal ASME tank, sized for shops and commercial operations that need steady, dependable air output every day, with the option to bolt on accessories down the road.
Who the OL7.5 Is Built For
- ✅ A food-processing, pharmaceutical, or dental facility that's outgrown a 5 HP oil-less unit and needs the extra CFM headroom of the 7.5 HP tier
- ✅ A coating or finishing operation running multiple oil-free air tools simultaneously without contamination risk
- ✅ A facility replacing an aging oil-less compressor that's started struggling under real daily multi-station load
- ✅ An operation that wants to eliminate oil-change maintenance while stepping up to more sustained CFM output
- ✅ A facility standardizing on FS-Curtis's oil-less OL Series for parts and service commonality, starting at the 7.5 HP tier
What the OL7.5 Is NOT Built For
- ❌ Shops needing 175 PSI output — the OL Series tops out at 100 PSI; for higher pressure, look at the CA or ML Series
- ❌ Facilities needing single-phase power — this unit is three-phase only
- ❌ Operations needing redundancy — this is a simplex (single-pump) unit; look at the OL7.5-D duplex instead
What Makes the OL7.5 Different
Oil-Less Pump Design
The FS-Curtis OL7.5 uses a W75, Oil-less Design — a 100% dry-crankcase design built for continuous duty without oil, so there's no oil-change maintenance and zero risk of oil carryover into the compressed air line.
CFM & Pressure Output
With 23.1 CFM @ 100 PSI on tap at up to 100 PSI, there’s enough reserve to supply clean, oil-free compressed air to contamination-sensitive processes and pneumatic equipment without the compressor struggling to keep pace.
Power Requirements
Three-Phase only, 230V/460V options available. Confirm your panel and breaker sizing with an electrician before delivery.
- 23.1 CFM — higher oil-less output
- Zero oil-contamination risk
- No oil-change maintenance
- Shops needing 175 PSI output
- Operations needing redundancy
OL7.5 vs. FS-Curtis OL5 (5 HP, Simplex Oil-less) — Which Compressor Is Right for Your Shop?
| Decision Point | OL7.5 | FS-Curtis OL5 (5 HP, Simplex Oil-less) |
|---|---|---|
| Horsepower / Tank | 7.5 HP / 120 Gal Horizontal | 5 HP / 120 Gal Horizontal |
| CFM @ 100 PSI | 23.1 CFM | 12.3 CFM |
| Design | Oil-less — no oil contamination risk | Oil-less — no oil contamination risk |
| Best fit | Higher-demand clean-air applications | Smaller clean-air applications |
Choose the OL7.5 when your clean-air application needs more sustained CFM than the OL5 provides. Choose the OL5 if 12.3 CFM already covers your demand — it costs less. Both stay inside Alamo’s catalog — call (844) 480-6059.
Full Specifications — OL7.5
| Model / Part Number | OL7.5 Simplex |
| Horsepower | 7.5 HP |
| Pump | W75, Oil-less Design |
| Configuration | Simplex Oil-less Reciprocating |
| Tank | 120 Gallon Horizontal ASME |
| Airflow | 23.1 CFM @ 100 PSI |
| Pressure Range | 100 PSI |
| Motor / Electrical | Three-Phase only, 230V/460V options available |
| Phase / Hz / Voltage | Three Phase: 3/60/230V (FOL07W75H1S-A3H1XX) 3/60/460V (FOL07W75H1S-A4H1XX) |
| Overall Dimensions | 73" L x 30" W x 60" H |
| Shipping Weight | 895 lbs |
| Warranty | 12 months |
⚠️ Setup Requirements
- Electrical: Three-Phase only, 230V/460V options available; have an electrician confirm your panel capacity before delivery.
- Floor space: 73" L x 30" W x 60" 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: 895 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 — OL7.5
FS-Curtis backs the OL7.5 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 OL7.5
Why Buy the OL7.5 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 — belt and air filter checks, valve and piston-ring inspection, 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, a 120 gallon horizontal ASME tank, 23.1 CFM @ 100 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 OL7.5 or the FS-Curtis OL5 (5 HP, Simplex Oil-less) 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