Rotary Screw Air Compressors
L Series 7 - 11 kW
Fixed & Regulated Speed
Well known in the industry for quality and reliability, CompAir continuously develops and expands the L-Series to achieve optimum performance and efficiency and maximum flexibility. The wide range of screw compressors from 7 to 11 kW includes fixed and regulated speed models, high efficiency models and is available as airstation including receiver and refrigerant dryer.
Engineering Excellence
Compressors are more than just a financial investment, they are a key component in ensuring that manufacturers, processors and operators receive consistent, high quality low cost air. The screw compression element is the heart of the compressor and therefore CompAir keeps the design and manufacture in-house, using the latest CNC rotor grinding machinery, coupled with online laser technology. The resulting reliability and performance ensure that operating costs will remain low throughout the compressor’s life.
Benefits
Compressor base mounted
Complete package including compressor, dryer and receiver
Small carbon foot print (by mounting the components on the receiver the footprint is reduced up to 55%)
In-house AirEnd
Highly efficient motors
Easy maintenance
Wide regulation range
The L-Series (7 – 11 kW) refers to a size range suitable for small-to-medium air demand applications—typically around 7.5 to 11 kW motor power (about 10 to 15 HP).
👉 These compressors are lubricated, belt-driven, air-cooled, and designed for reliability, compact installation, and easy maintenance.
Typical Performance & Features (7–11 kW Models)
🔹 Motor power: ~7.5 – 11 kW (10–15 HP)
🔹 Pressure range: ~5 – 13 bar (varies by model and configuration)
🔹 Air delivery: Roughly 0.4 – 1.9 m³/min depending on pressure and model
🔹 Noise: About 63 – 70 dB(A) (quiet for a rotary screw compressor)
🔹 Cooling: Air-cooled standard
🔹 Design: Compact footprint, reliable airend, integrated lubrication and separation systems
🔹 Controller: Modern units use digital controllers for easy operation and monitoring
📌 Recommended Picks
7.5‑11 kW Industrial Rotary Screw Compressor – Good general-purpose unit around this power range; suitable for small to moderate compressed-air needs.
11 kW Rotary Screw Air Compressor (7 Bar) – 11 kW machine designed for ~7 bar working pressure, ideal for typical industrial air applications.
Industrial Rotary Screw Air Compressor (Low Maintenance) – Budget-friendly industrial option with focus on simple maintenance.
11 kW Electric Rotary VSD Screw Compressor – VSD (variable speed drive) model can offer better energy savings by matching motor speed to air demand.
11‑7 Encap Series Screw Compressor – Another mid-range compressor option suitable for varied industrial needs.
📊 How to Choose Between L-Series Models
When selecting the right 7–11 kW rotary screw compressor:
✅ Air flow requirement (m³/min): Base your choice on the total flow needed by your tools/process.
✅ Working pressure (bar): Higher pressure reduces flow; match it to your application.
✅ VSD vs fixed speed: VSD gives better energy savings if air demand varies.
✅ Installation space & noise limits: Compact, quiet models help in workshop settings.
✅ Service/support availability: Choose brands or sellers with local parts and service options.
