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
🏭 L Series 7–11 kW Screw Compressors (Overview)
The L Series (7–11 kW) is a popular industrial range of oil-injected rotary screw air compressors designed for continuous-duty applications like workshops, manufacturing, and processing units.
⚙️ Key Specifications
Power range: 7.5 kW – 11 kW (≈10–15 HP)
Pressure range: ~5 to 13 bar (model dependent)
Airflow (FAD): ~0.4 to 1.9 m³/min
Noise level: ~63–70 dB (quiet operation)
Configuration: Base-mounted or tank-mounted (air receiver + dryer options)
🔄 Fixed Speed vs Regulated Speed
🔹 Fixed Speed
Runs at constant motor speed
Best for steady air demand
Lower upfront cost
🔹 Regulated Speed (Variable Speed / RS)
Adjusts motor speed based on air demand
Saves up to 30–35% energy
Ideal for variable load conditions
🛠️ Typical Features
High-efficiency IE3 motors
Compact footprint (up to 55% space saving with tank-mounted units)
Integrated dryer + receiver options (AirStation)
Advanced controllers (monitoring, fault logs, multi-unit control)
Low maintenance and long service life
🧰 Applications
Automobile workshops
Small & medium factories
Textile, pharma, food industries
Painting, sandblasting, pneumatic tools
📊 Example: 11 kW Model (Typical)
Power: 11 kW
Pressure: 7–7.5 bar
Airflow: ~1.5–1.8 m³/min
Noise: ~64–70 dB
Compact size (~1 m height)
👍 Why Choose L Series?
Reliable for 24/7 industrial operation
Energy-efficient (especially regulated speed models)
Compact + integrated systems available
Suitable for growing businesses
