US Dollars
FSCurtis
FS-Curtis ML7.5 200G 7.5HP(2) Duplex Tank Mounted Electric Air Compressor
Write a Reviews
FSCurtis
FS-Curtis ML7.5 200G 7.5HP(2) Duplex Tank Mounted Electric Air Compressor
FS-Curtis ML7.5 200G 7.5HP(2) Duplex Tank Mounted Electric Air Compressor
Need help with installation? Our AI assistant has read this installation manual and can help you find the right page and walk you through each step.
The FS-Curtis ML7.5 Duplex represents the pinnacle of heavy-duty reciprocating air compressor engineering. Featuring dual 7.5 HP pumps paired with a 200-gallon ASME approved tank, this duplex system delivers 57.4 CFM at 175 PSI with unmatched reliability and efficiency. Duplex compressors are ideal when there are varying demand levels during operation—by alternating demand across two pumps, the ML7.5-D delivers longer pump life and eliminates maintenance downtime. The redundant pumps ensure you'll always have compressed air when you need it most.
Available in single-phase 1/60/230V and multiple three-phase configurations (200-208V, 230V, and 460V), this industrial-grade compressor is built for 100% continuous duty in the most demanding working conditions. The Masterline series combines quality cast-iron components with FS-Curtis's patented Centro-Ring pressure lubrication technology, creating a rugged, affordable, and smart air compressor solution that outlasts splash-lubricated and small rotary compressor alternatives.
Power Configuration Options
Single Phase:
- 1/60/230V - Model FML07C79D1S-A2L1XX
Three Phase (Premium Efficiency Motors):
- 3/60/200-208V - Model FML07C79D1S-A9L1XX
- 3/60/230V - Model FML07C79D1S-A3L1XX
- 3/60/460V - Model FML07C79D1S-A4L1XX
Industrial-Grade Performance & Durability
Masterline is the most robust, heavy-duty reciprocating air compressor lineup available. The perfect combination of quality components and efficient design make the ML Series rugged, affordable, and smart. Because every model is built tough to last a lifetime in demanding working conditions, the ML Series is an outstanding alternative to splash-lubricated reciprocating compressors and small rotary compressors. Choose higher quality. Choose superior durability. Choose ML Series pressure lubricated air compressors.
Patented Centro-Ring Pressure Lubrication Technology
The Centro-Ring pressure lubrication system is a proprietary FS-Curtis exclusive that sets the ML7.5-D apart from the competition:
- Supplies pressurized oil internally to all bearings and critical wear surfaces through the rifle-drilled crankshaft and connecting rods
- Helps ensure maximum uptime and increased service life
- Proprietary technology is an FS-Curtis exclusive
100% Cast-Iron Construction Where It Counts
The ML7.5-D features 100% cast-iron cylinders, cylinder heads, connecting rods, and crankshaft – all cast-iron where it counts for longer life with less maintenance:
- Some pumps claim 100% cast-iron yet still have aluminum cylinders, cylinder heads, connecting rods, and crankshafts – not FS-Curtis
- Ductile cast-iron crankshaft and connecting rods are stronger, more corrosion-resistant, and less likely to break
- Slow-turning pump design increases pump life dramatically
- Rugged parts and construction for true industrial performance
Premium Quality Components – Built for 100% Continuous Duty
Every component is engineered for industrial reliability:
- Industry-leading stainless-steel valve assemblies for increased airflow and reliability
- Oversized tapered main roller bearings to ensure long life
- Premium finned intercooler maximizes heat dissipation
- Metal intake filter-silencer is superior to plastic alternatives
- Heavy-duty stamped-steel belt guard for OSHA compliance
- Suction valve head unloaders for continuous running air compressors
- Dynamically balanced flywheel for smooth, vibration-free operation
Duplex System Advantages
The duplex configuration provides significant operational and cost advantages over single-pump systems:
- Alternator control panel comes mounted with magnetic motor starters and thermal overload protection
- Compressors alternate during normal operation to evenly distribute wear and extend service life
- Both compressors run when system demands, delivering full capacity when you need it
- Duplex design reduces electrical cost by running only the capacity required
- Eliminates downtime – redundant pumps ensure continuous operation even during maintenance
- Factory oil filled and ready to install
- 3-position alternator switch for flexible operation
- Standard two power source electrical configuration
Key Selling Points
- 57.4 CFM at 175 PSI with dual 7.5 HP pumps and 200-gallon ASME tank
- Patented Centro-Ring pressure lubrication ensures maximum uptime and extended service life
- 100% cast-iron construction – cylinders, heads, rods, and crankshaft built for industrial duty
- Duplex redundancy eliminates downtime and reduces operating costs
- Premium Efficiency Motors (3-phase models) and slow V-belt drive for energy savings
See the Masterline ML Series in Action
Looking for full specifications and features?
Check out the Product Specifications and Product Features tabs
above for complete specs, dimensions, and detailed feature breakdowns.
1 Year Factory Warranty extends to 2 years with use of FS-Curtis Maintenance Products. See full Warranty Policy & Procedure Manual