Rotary Screw Air Compressors
Single and Two-Stage Lubricated Screw Compressors 160 - 250 kW
Fixed & Regulated Speed L160 to L250
By listening to our customer’s needs and wishes, and incorporating the latest technology and design concepts, CompAir has delivered an impressive range of compressors featuring higher free air delivery, new compact footprint, lower noise levels, new split radial cooling fan design, new controller, and many more features besides.
New CompAir FourCore range balances two-stage efficiency with single-stage footprin
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 Classic 160 to 250kW Range
The new E models are offered in addition to the well established existing large screw compressor range which has been offered over many years, with 1000's of installations worldwide, continuing to power the larger volume air requirements of a diverse range of industries.
How Industry benefits from CompAir:
Premium airend providing high reliability
Automatic motor lubrication system for optimum protection
Low installation costs thanks to the compact design
High quality air
Safe and economical operation
Excellent accessibility contributing to the low maintenance costs
Rotary Screw Air Compressors (160–250 kW Range)
🔧 Product Range Overview
You’re referring to industrial oil-lubricated rotary screw compressors in the 160–250 kW category, typically used in heavy-duty continuous operations like:
Cement plants
Steel & metal industries
Textile manufacturing
Power plants
Large-scale automation systems
These compressors are designed for 24/7 operation, offering high efficiency and reliability compared to piston compressors .
⚙️ Key Types in This Range
1. Single-Stage Lubricated Screw Compressors
Compress air in one step
Simpler design, lower initial cost
Suitable for moderate pressure applications (7–10 bar)
Slightly lower efficiency at high loads
2. Two-Stage Lubricated Screw Compressors
Compress air in two stages (LP + HP)
Higher efficiency (especially >160 kW)
Lower energy consumption (up to ~10–15% savings in some cases)
Better for high pressure & continuous heavy loads
👉 Preferred for energy-intensive industries
⚡ Fixed Speed vs Regulated Speed
Fixed Speed Compressors
Run at constant RPM
Best for stable air demand
Lower capital cost
Less flexible
Regulated Speed (VSD / VFD)
Adjust motor speed based on demand
Significant energy savings (up to ~35% depending on usage)
Reduced wear and tear
Ideal for variable load conditions
📊 Typical Technical Specifications (160–250 kW)
Power: 160–250 kW
Pressure Range: 7–14 bar
FAD (Flow): Up to ~2450 m³/h
Cooling: Air-cooled / Water-cooled
Noise Level: ~60–75 dB
Drive: Direct drive / Belt drive
🏷️ Example Series (L160–L250)
The “L160 to L250” designation typically refers to:
Models around 160 kW to 250 kW
Available in:
Fixed speed (FS)
Variable speed (VSD/VFD)
Single or two-stage configurations
✅ Key Selection Factors
When choosing between models:
Air demand profile → fixed vs VSD
Energy cost → two-stage + VSD saves most
Pressure requirement → single vs two-stage
Duty cycle → continuous vs intermittent
Installation environment → cooling & noise
💡 Quick Recommendation
If your plant load varies → go for VSD (regulated speed)
If running 24/7 heavy load → choose two-stage + VSD
If budget constrained → single-stage fixed speed
