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 are positive-displacement machines that compress air using two interlocking helical rotors. In lubricated designs, oil serves multiple purposes: lubrication of the airend, cooling of compressed air, and sealing between rotors — resulting in reliable, continuous operation for industrial demand.
The 160 – 250 kW range sits toward the high end of industrial compressors, offering significant airflow (often 6 – 47 m³/min or more) and pressures typically from ~5 bar up to ~13 bar depending on model and configuration.
⚙️ Single-Stage vs Two-Stage Compression
🌀 Single-Stage Lubricated Screw
Air is compressed in one phase between the male and female rotors.
Simpler design, lower upfront cost.
Suitable for general industrial compressed-air needs.
🟢 Two-Stage Lubricated Screw
Air is compressed twice (first stage then second) before discharge.
Improved energy efficiency and performance at higher pressures.
Often more compact than traditional two-stage machines due to advanced airend design.
📊 Key Features & Benefits
🔧 1. High Efficiency & Energy Savings
Advanced airend technology (e.g., compact double-stage designs) can deliver higher efficiency and lower specific energy consumption than older single-stage units.
Variable speed drive (VSD) options allow better matching of air delivery to demand, reducing waste and power cost.
🔩 2. Robust, Industrial-Grade Construction
Premium-quality airends engineered for long life and heavy duty service.
Automatic motor lubrication and optimized cooling extend service life.
Compact footprint despite high power class, reducing installation space and costs.
📊 3. Control & Monitoring
Integrated controllers manage operations, protect the compressor, and provide diagnostics.
Many models offer touch-screen or remote-monitoring capabilities.
🛠️ 4. Serviceability & Maintenance
Large access panels and smart layout simplify maintenance tasks.
Integrated oil filters and regulation valves reduce external piping and potential leak points.
📈 5. Performance
Typical airflow range: roughly 6 – 47 m³/min (varies by model).
Pressure range: commonly 5 – 13 bar (standard industrial system range).
🧠 Typical Applications
These compressors are ideal for:
Large production facilities and factories
Heavy manufacturing machinery
Automotive plants
Textile, chemical, and packaging industries
