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FS-Curtis ML5 5HP 80G Vertical Simplex Tank Mounted Electric Air Compressor
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FSCurtis
FS-Curtis ML5 5HP 80G Vertical Simplex Tank Mounted Electric Air Compressor
FS-Curtis ML5 5HP 80G Vertical Simplex Tank Mounted Electric Air Compressor
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The FS-Curtis ML5 represents the pinnacle of industrial-grade reciprocating air compressor design. This 5 HP vertical simplex unit with an 80-gallon ASME-approved tank delivers 19.1 CFM at 175 PSI, making it the ideal solution for demanding shop environments that require reliable, continuous-duty compressed air. Built exclusively with 100% cast-iron construction where it matters most and featuring patented Centro-Ring pressure lubrication, the ML5 outperforms splash-lubricated compressors and small rotary units in durability, efficiency, and service life. Available in multiple voltage configurations including single-phase 230V and three-phase 200-208V, 230V, and 460V options, this American-made compressor is engineered to deliver decades of trouble-free operation in the toughest working conditions.
Masterline Series: Built Tough to Last a Lifetime
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.
Simplex compressors are well suited for common applications where only one compressor is needed. The ML5 is factory oil-filled and ready to work right out of the crate, delivering professional performance with minimal setup time.
Centro-Ring Pressure Lubrication – Patented FS-Curtis Design
The heart of every ML Series compressor is the exclusive Centro-Ring pressure lubrication system—a proprietary technology available only from FS-Curtis. This innovative design delivers critical advantages:
- Proprietary technology is an FS-Curtis exclusive – You won't find this advanced lubrication system anywhere else
- Supplies pressurized oil internally to all bearings and critical wear surfaces through the rifle-drilled crankshaft and connecting rods
- Helps ensure maximum uptime and increase service life by maintaining optimal lubrication under all operating conditions
Unlike splash-lubrication systems that rely on random oil distribution, Centro-Ring technology guarantees that every bearing and wear surface receives consistent, pressurized lubrication—dramatically extending pump life and reducing maintenance requirements.
100% Cast-Iron Where It Counts – All Cast-Iron for Longer Life with Less Maintenance
The ML5 features 100% cast-iron cylinders, cylinder heads, connecting rods, and crankshaft. This isn't marketing hype—it's genuine industrial-grade construction:
- Some pumps claim 100% cast-iron yet still have aluminum cylinders, cylinder heads, connecting rods and crankshafts – not FS-Curtis. When we say cast-iron, we mean it.
- Ductile cast-iron crankshaft and connecting rods are stronger, more corrosion-resistant and less likely to break under demanding conditions
- Slow-turning pump increases pump life by reducing heat and wear on critical components
- Rugged parts and construction for industrial performance – built for 24/7 operation in harsh environments
Cast-iron construction ensures superior heat dissipation, dimensional stability under load, and decades of reliable service. The D96 pump delivers consistent performance year after year.
Quality Components – Built for 100% Continuous Duty
Every component in the ML5 is selected for maximum durability and performance. This compressor is engineered for 100% continuous duty, meaning it can run all day, every day:
- Industry-leading stainless-steel valve assemblies for increased airflow and reliability
- Oversized tapered main roller bearings to ensure long life even under heavy loads
- Premium finned intercooler maximizes heat dissipation for cooler, more efficient operation
- Metal intake filter/silencer is superior to plastic—more durable and effective
- Heavy-duty stamped-steel belt guard provides OSHA-compliant protection
- Suction valve head unloaders for continuous running air compressors
- Dynamically balanced flywheel for smooth, vibration-free operation
- Slow V-belt drive reduces wear and extends component life
Complete Industrial Features & Controls
The ML5 comes fully equipped with professional-grade controls and safety features:
- Magnetic motor starter for reliable, long-lasting electrical control
- Automatic Start-Stop control maintains pressure automatically
- Dual Control ML5 with pilot valve for precise pressure management
- NEMA-1 control panel with industrial-grade components
- UL approved pressure switch for safe, reliable operation
- Dial read-out pressure gauge for easy monitoring
- ASME approved air receiver (80-gallon tank) ensures code compliance
- ASME approved safety relief valve and discharge valve air service valve
- Manual condensate tank drain valve for moisture removal
- Tank shut-off valve for maintenance convenience
- Premium Efficiency Motors (3-phase models only) reduce energy costs
Flexible Voltage Configurations
The FS-Curtis ML5 is available in multiple voltage configurations to match your shop's electrical system:
Single Phase:
- 1/60/230V - Model FML05D96V8S-A2L1XX
Three Phase:
- 3/60/200-208V - Model FML05D96V8S-A9L1XX
- 3/60/230V - Model FML05D96V8S-A3L1XX
- 3/60/460V - Model FML05D96V8S-A4L1XX
Key Performance Highlights
- 5 HP motor with D96 pump delivers 19.1 CFM at 175 PSI
- 80-gallon vertical tank provides ample air storage in a compact footprint (36" L x 30" W x 75" H)
- Patented Centro-Ring pressure lubrication ensures maximum uptime and extended service life
- 100% cast-iron construction on all critical wear components for unmatched durability
- Factory oil-filled and ready to work with complete safety and control systems installed
Proudly Made in the USA
FS-Curtis air compressors are engineered and manufactured in the United States, ensuring superior quality control, readily available parts, and support you can count on.
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