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 CompAir L45+ to L132RS lubricated rotary screw compressors are part of a heavy-duty industrial range designed for continuous, reliable compressed air supply. Here’s a clear breakdown of what that description actually means and why these machines are widely used in manufacturing and process industries.
🔧 Overview of L45+ to L132RS Series
These compressors cover a power range of ~45 kW to 132 kW, making them suitable for medium to large industrial operations like automotive plants, food processing, textiles, and pharmaceuticals.
L45+ → entry-level in this range (smaller plants or partial load use)
L132RS → high-capacity, variable-speed model for demanding applications
They are oil-lubricated rotary screw compressors, meaning oil is used for:
Cooling
Lubrication
Sealing during compression
⚙️ Key Features & Technology
1. Continuous High-Quality Air Supply
Designed for 24/7 operation
Stable pressure and airflow output
Ideal for production lines where downtime is costly
2. Advanced Airend & Efficiency
Uses premium efficiency screw airend (core compression unit)
Newer models feature two-stage compression technology
Up to 13% energy savings
Up to 17% higher airflow vs older designs
3. Fixed Speed vs Regulated Speed (RS)
Fixed Speed: constant output, simpler operation
RS (Variable Speed):
Adjusts motor speed based on demand
Reduces energy consumption during partial loads
4. FourCore Technology (New Generation)
Compact design with single motor + multiple rotors
Combines:
Efficiency of 2-stage compressors
Footprint of single-stage units
Can be ~8% more efficient than earlier models
5. Smart Control System
Equipped with Delcos XL controller
Features:
Touchscreen interface
Real-time monitoring
Fault diagnostics
Remote operation capability
🏭 Built-In System Integration
These compressors can be supplied with integrated air treatment:
Air dryers (refrigerant/desiccant)
Filters and water separators
Condensate management systems
Optional heat recovery (reuse waste heat)
This makes them a complete compressed air solution, not just a standalone machine.
💡 Why Industries Prefer This Range
Energy efficiency → lower operating cost
Reliability → minimal downtime
Scalability → multiple models for different plant sizes
Compact design → saves floor space
Consistent air quality → critical for sensitive processes
