US Dollars
FSCurtis
FS-Curtis ML5 120G 5HP(2) Duplex Tank Mounted Electric Air Compressor
Write a Reviews
FSCurtis
FS-Curtis ML5 120G 5HP(2) Duplex Tank Mounted Electric Air Compressor
FS-Curtis ML5 120G 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 ML5 Duplex combines two 5HP pumps with a 120-gallon ASME-approved air receiver to deliver 38.2 CFM at 175 PSI — making it the ideal solution for shops with varying demand levels and zero tolerance for downtime. Built with 100% cast-iron construction where it matters most and featuring the patented Centro-Ring pressure lubrication system, this duplex compressor delivers industrial-grade reliability and extended pump life. With automatic alternation between pumps and the ability to run both units during peak demand, the ML5-D reduces electrical costs, ensures continuous air supply, and virtually eliminates maintenance downtime.
Built Rugged for Industrial Performance
The Masterline Series represents the most robust, heavy-duty reciprocating air compressor lineup available today. The perfect combination of quality components and efficient design make the ML5 Duplex 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.
Centro-Ring Pressure Lubrication – Patented FS-Curtis Design
This proprietary technology is an FS-Curtis exclusive that sets the ML5 Duplex apart from the competition. The Centro-Ring system supplies pressurized oil internally to all bearings and critical wear surfaces through the rifle-drilled crankshaft and connecting rods. This innovative design helps ensure maximum uptime and significantly increases service life, delivering reliability you can count on day after day.
100% Cast-Iron Where It Counts
All cast-iron cylinders, cylinder heads, connecting rods, and crankshaft — 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. The ductile cast-iron crankshaft and connecting rods are stronger, more corrosion-resistant, and less likely to break. Combined with a slow-turning pump design, this rugged construction delivers true industrial performance that stands the test of time.
Quality Components – Built for 100% Continuous Duty
The ML5 Duplex features industry-leading stainless-steel valve assemblies for increased airflow and reliability, oversized tapered main roller bearings to ensure long life, and a premium finned intercooler that maximizes heat dissipation. Unlike cheaper alternatives, this unit includes a metal intake filter/silencer superior to plastic, a heavy-duty stamped-steel belt guard, and suction valve head unloaders designed specifically for continuous running air compressors. Every component is engineered for durability and performance.
Duplex Design Advantages
Duplex compressors are ideal when there are varying demand levels during operation. By alternating demand across two pumps, a duplex compressor also delivers longer pump life. The redundant pumps ensure you'll always have air, eliminating maintenance downtime.
The alternator control panel comes mounted with magnetic motor starters and thermal overload protection. Compressors alternate during normal operation, and both compressors run when system demands require maximum output. This duplex design reduces electrical cost and eliminates downtime, while being factory oil filled and ready to install right out of the crate.
Key Highlights
- 38.2 CFM at 175 PSI with two 5HP motors and D96 pumps
- 120-gallon ASME-approved horizontal tank for consistent air delivery
- Patented Centro-Ring pressure lubrication ensures maximum pump life and reliability
- Automatic alternation between pumps with both running during peak demand
- Available in single-phase 230V and multiple three-phase voltages (200-208V, 230V, 460V) to match your shop power
Available Voltage Configurations
Single Phase:
- 1/60/230V - Model FML05D96D1S-A2L1XX
Three Phase:
- 3/60/200-208V - Model FML05D96D1S-A9L1XX
- 3/60/230V - Model FML05D96D1S-A3L1XX
- 3/60/460V - Model FML05D96D1S-A4L1XX
Three-phase models feature Premium Efficiency Motors for reduced energy consumption and operating costs.
See the 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