FS-Curtis ML15+ 120G Horizontal 15HP Simplex Tank Electric Air Compressor #ML15Plus-SH

FS-Curtis ML15Plus-SH — 15 HP Air Compressor

An owner just finished walking a competitor's shop and watched three techs pull air from one line without so much as a stutter in pressure — and came home wondering why their own compressor can't keep up the same way during a busy multi-bay shift.

The FS-Curtis ML15Plus-SH is a two-stage reciprocating compressor rated for 15 HP 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 ML15Plus-SH Is Built For

• ✅ A commercial shop that's added bays over the years and watched its standard ML15's 49.5 CFM start falling short during a busy multi-tech shift, but already has a working refrigerated dryer installed from a prior upgrade and doesn't want to pay again for accessories it doesn't need
• ✅ An owner comparing the base ML15-SH against this ML15+ configuration line-by-line and choosing the C89 pump specifically because the extra 6.3 CFM matters more to their actual daily draw than the price gap
• ✅ A facility manager budgeting a compressor replacement who wants the highest-output pump platform in the 15 HP tier now, with the explicit plan to add Ultra Pack accessories in a later budget cycle rather than all at once
• ✅ A shop running several bays simultaneously where a tech has already noticed a tool losing pressure mid-job on the standard ML15, and needs the C89 pump's extra headroom without paying for a dryer bundle they'll install separately
• ✅ A multi-location operator standardizing on FS-Curtis's ML15+ pump platform across several shops for common parts and service, starting each new install at the base configuration and layering in accessories site-by-site as budgets allow

What the ML15Plus-SH Is NOT Built For

• ❌ Shops whose demand is fully covered by the standard ML15 (49.5 CFM) or an ML10 unit — the ML15+ costs more for the extra output
• ❌ Shops wanting factory auto-drain/dryer accessories standard — the Ultra Pack (ML15Plus-HUP) adds those, this base unit doesn't
• ❌ Shops needing single-phase power — this series is three-phase only

What Makes the ML15Plus-SH Different

Commercial 2-Stage Pump

The ML15Plus-SH uses a C89, 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 55.8 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 only, 230V/460V options available. Confirm your panel and breaker sizing with an electrician before delivery.

Full Specifications — ML15Plus-SH

FS-Curtis Warranty — ML15Plus-SH

FS-Curtis backs the ML15Plus-SH with a 1-year parts-only warranty.

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.