US Dollars
FSCurtis
FS-Curtis OL5 Base Mount 5HP Oil-less Air Compressors
Write a Reviews
FSCurtis
FS-Curtis OL5 Base Mount 5HP Oil-less Air Compressors
FS-Curtis OL5 Base Mount 5HP Oil-less Air Compressors
Model: 230V/3-Phase FOL05W50BXS-A3H1XX or 460V/3-Phase FOL05W50BXS-A4H1XX
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.
True Oil-Less Air for Critical Applications
The FS-Curtis OL5 Series is the ideal reciprocating oil-less air compressor for applications where critical air quality is absolutely required. Industries such as food and beverage processing, medical and dental facilities, chemical processing, pharmaceutical manufacturing, electronics production, and more rely on the OL5's 100% oil-free compressed air to protect their products, processes, and equipment.
Featuring a 5HP NEMA-designed electric motor driving a robust VW50 2-cylinder pump, this base-mounted compressor delivers 12.3 CFM at 175 PSI with a 100% duty cycle for continuous operation. Available in 230V/3-Phase or 460V/3-Phase configurations, the OL5 offers unmatched flexibility, reliability, and performance in a compact 370 lb package.
Oil-Less Air Quality You Can Trust
Zero oil carryover. The OL5 features a 100% dry cast iron crankcase that provides truly oil-less compressed air for critical applications. Unlike oil-lubricated compressors that rely on filtration to remove oil contamination, the OL5 produces clean air at the source—eliminating the risk of oil vapor contaminating your process or product.
- 100% dry crankcase provides oil-less compressed air for critical applications with zero oil carryover
- Over-sized fan and multiple inter-stage cooling pipes with an air-cooled inter-cooler to maximize heat transfer and deliver lower discharge temperatures
- Environmentally friendly with no oil vapor generated by the compressor—eliminates oil changes and costly oil disposal
- Protects downstream equipment and reduces maintenance costs by delivering clean, dry air
- Decreases costs and reduces system pressure loss due to reduction of air filtration equipment in the compressed air system
Built for Reliability and Continuous Operation
The OL5 is engineered for long-term reliability in the most demanding continuous-duty applications. Every component—from the cast iron crankcase, cylinder, and cylinder head to the dynamically balanced ductile iron crankshaft and cast aluminum high tensile strength connecting rod—has been precision-manufactured to withstand years of heavy use.
- Low speed pump for long-term reliability and efficiency—reduces wear and extends service life
- 100% duty cycle for continuous operation in critical applications
- Robust cast-iron crankcase, cylinder, and cylinder head for long-lasting performance
- Sealed pre-greased bearings and self-lubricated guide rings and compression rings reduce maintenance needs
- Aluminum piston and precision-machined valves requiring no lubrication
Industry Leading Performance and Efficiency
Every component in the FS-Curtis OL5 has been made to the highest quality and precision standards to provide maximum performance in the most demanding of applications. The compressor is designed for low noise operation, making it suitable for installation in occupied work areas without disruption.
- Precision manufactured valves increase air flow and maximize reliability
- Balanced flywheel and dynamically balanced crankshaft for smooth, vibration-free operation
- Slow V-belt driver for efficient power transfer and reduced wear
- Designed for low noise level to minimize workplace disruption
- Intake filter with silencer reduces operational noise and protects internal components
Complete Package with Safety Features
The OL5 arrives as a complete, ready-to-install system with all necessary safety features and components included. The unit features a NEMA-designed electric motor with magnetic starter, UL pressure switch, ASME safety relief valve, ASME air service valve, OSHA approved belt guard, and more—all professionally engineered and assembled at the factory.
The compressor includes a horizontal ASME tank, manual tank drain valve, air pressure gauge, copper discharge piping, and isolation pads (shipped loose for installation). Connection is made via a 7/8" OD NPT fitting.
Key Highlights
- True oil-less design with 100% dry cast iron crankcase—zero oil carryover for critical applications
- 5HP power delivering 12.3 CFM at 175 PSI with 100% duty cycle for continuous operation
- Robust construction with cast iron components, precision-machined valves, and dynamically balanced crankshaft
- Low maintenance design with sealed pre-greased bearings and self-lubricated rings—no oil changes required
- Made in USA quality—precision-engineered and factory-assembled for reliability
Made in USA Quality
FS-Curtis compressors are proudly Made in the USA, combining American engineering expertise with precision manufacturing for dependable performance you can trust.
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