Rotary Screw Air Compressors
L45+ to L132RS
CompAir lubricated rotary screw compressors incorporate the very latest technological advances and guarantee a continuous supply of high quality compressed air.
New CompAir FourCore range balances two-stage efficiency with single-stage footprint
CompAir has announced the launch of its new 110 to 250 kW FourCore compressor range, combining best-in-class compressed air efficiency with a small footprint and sustainable design for eco-conscious businesses.
The FourCore range offers all the capabilities of a two-stage compressor, but with only the footprint of a single-stage unit. It therefore provides businesses – who might not have previously had the on-site space available – the opportunity to take advantage of the capabilities of two-stage technology. And when compared with previous single-stage compressors in this size range from CompAir, the new models are up to 8 per cent more efficient, offering a best-in-class oil-lubricated solution for decision makers.
Our application engineering team, based at the Simmern Centre of Excellence production site in Germany has designed and engineered a brand new, patented technology that offers best-in-class energy efficiency. They have developed a premium efficiency 2-stage model for fixed and regulated speed compressors using the new technology of the compact double stage airend. What’s unique about this design is that the airend has 1 motor and 4 rotors located in a single, semi-integrated casting. This differs from traditional 2-stage compressors, providing a compact package with high energy savings. In fact, these machines are the same size as a 1 stage machine due to new airend technology.
The L-Series from CompAir
Well known in the industry for quality and reliability, CompAir continuously develops the L-Series achieving cutting edge performance and efficiency. The L45+ - L132 range of lubricated screw compressors comprises of fixed speed and regulated speed (RS) models. All models are optionally available with integrated heat recovery.
Benefits:
Engineering Excellence
Premium Efficiency Airend
Wide Regulation Range
Perfect Motor - Drive - Airend Design
Compressed Air Purification
Water Separator
Compressed Air Filter
Condensate Drain Solution
Compressed Air Refrigerant Dryer
Heatless Desiccant Dryers
Heat Regenerative Desiccant Dryers
Nitrogen Generator
SmartAir Master Multi Compressor Controllers
The L45+ to L132RS range refers to heavy-duty industrial rotary screw air compressors (typically from brands like CompAir) designed for continuous operation, high efficiency, and large air demand applications.
🔧 Overview: L45+ to L132RS Series
Power range: 45 kW to 132 kW
Type: Oil-lubricated rotary screw compressors
Application: Medium to large industrial plants
Duty cycle: 100% (continuous 24/7 operation)
These compressors use twin rotating screws to compress air smoothly and continuously, making them ideal where uninterrupted air supply is critical.
⚙️ Key Features
High efficiency: Lower energy consumption vs piston compressors
Quiet operation: Around ~60–70 dBA typical for screw compressors
Reliable continuous air supply: No pulsation, stable pressure
Low maintenance: Fewer moving parts than reciprocating systems
Long lifespan: Designed for harsh industrial environments
🏭 Typical Applications
Manufacturing plants
Automotive & paint shops
Food & beverage processing
Textile & packaging industries
Heavy engineering & fabrication
Rotary screw compressors are preferred where constant airflow and reliability are more important than intermittent use.
📊 Typical Models in This Range
L45+ → ~45 kW (mid-size industrial use)
L55RS / L75RS → higher airflow, larger plants
L90RS – L132RS → heavy-duty, high-demand applications
✅ How to Choose (Quick Guide)
45–75 kW: Medium factories, CNC shops, automotive workshops
75–110 kW: Large production lines, multiple machines
110–132 kW: Heavy industry, continuous high air demand
👉 If your plant runs 24/7, go for VSD (Variable Speed Drive) models for up to ~60% energy savings.
🔍 Key Buying Considerations
Required CFM / FAD (air flow)
Operating pressure (bar)
Duty cycle (continuous vs intermittent)
Energy cost (VSD vs fixed speed)
Space & cooling requirements
