Rotary Screw Air Compressors
L Series 7 - 11 kW
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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
🔧 Best for Light / Medium Industrial Work
11 kW Rotary Screw Air Compressor – Solid 11 kW unit suitable for continuous industrial tasks with good airflow.
7.5–11 kW Industrial Rotary Screw Compressor – Flexible power range model, often chosen for workshops or production lines.
COMPAIR 10 HP Industrial Rotary Screw – Trusted brand compressor with good reliability and performance.
⚙️ Balanced Performance & Value
Industrial Rotary Screw Air Compressor with Low Maintenance – Good choice if maintenance ease and uptime matter.
11 kW 15 HP Screw Type Air Compressor – 15 HP equivalent 11 kW machine for heavier airflow.
7.5 kW 10 HP Rotary Screw Air Compressor – Slightly smaller power but effective for moderate usage.
📦 Integrated & Advanced Options
Airstone Rotary Screw Air Compressor With Inline Dryer – Compressor + dryer combo to deliver dry, clean air in industrial settings.
AC 11 kW Lubricated Screw Air Compressor – Standard lubricated compressor at a competitive price.
🛠️ What “L Series” Rotary Screw Compressors Offer
Rotary screw compressors like the L-Series 7–11 kW are a popular choice in light to medium industrial sectors for several reasons:
🔹 Continuous Duty & Efficient Airflow
These compressors use rotary screw elements – two interlocking helical rotors – to deliver a constant, smooth supply of air suitable for production lines, machine tools, painting booths, and pneumatic systems.
🔹 Flexible Operation (Fixed & Regulated Speed)
Fixed-speed models are simpler and cost-effective for steady air demand.
Regulated speed (RS or VSD) models adjust motor speed to air demand, saving energy and reducing operating costs.
🔹 Compact, Easy to Maintain
Many L-Series packages are base-mounted or tank-mounted with integrated dryers — reducing footprint and installation complexity.
🔹 Low Noise & High Reliability
Good enclosures, quality motors and cooling systems keep noise levels reasonable and make these units suitable for workshop or factory environments.
📊 Typical Specs You’ll See on 7 – 11 kW Rotary Screw Compressors
(Values vary by model and manufacturer)
Power: ~7.5 kW – 11 kW (~10–15 HP)
Pressure range: ~7.5 – 13 bar depending on model and configuration
Air delivery: Typically ~0.4 – 1.8 m³/min (varies with pressure)
Noise: As low as ~63–70 dB(A) depending on enclosure and design
🏭 Selecting the Right L-Series Compressor
Choose based on:
✔ Airflow demand (m³/min) – match your tool/equipment requirements.
✔ Pressure requirement (bar) – common industrial needs are 7.5–13 bar.
✔ Duty cycle – screw compressors excel at continuous use.
✔ Energy efficiency – consider RS/VSD units for variable demand environments.
