Rotary Screw Air Compressors
Lubricated Rotary Screw Compressor 45 - 55 kW
New Generation in Compression Technology
Single & Two-Stage
Fixed & Regulated Speed
The ALL-NEW L-Series from CompAir
Well known in the industry for quality and reliability, CompAir continuously develops the L-Series to achieve cutting-edge performance and efficiency. And so, a new era in air compression technology has begun.
More sustainable, more powerful, more energy-efficient, and also, exceptionally small.
If you're looking at Lubricated Rotary Screw Air Compressors (45–55 kW) as a new-generation compression solution, here’s a clear, practical breakdown along with real product options and comparison.
These compressors are widely used in manufacturing, CNC shops, textiles, and continuous-process industries because they provide stable, continuous airflow with high efficiency.
Key highlights:
Power range: 45–55 kW (≈ 60–75 HP)
Pressure range: typically 7–12 bar
Flow rate: ~5.5 to 8 m³/min depending on pressure
Lubrication: Oil-injected for cooling + reduced wear (longer life)
🏭 Single-stage vs Two-stage (Important choice)
Single-stage compressors
Compress air in one step
Lower cost, simpler design
Best for ≤10 bar applications
Two-stage compressors
Compress air in two steps (intercooling in between)
Higher efficiency at higher pressure
Best for ≥10 bar / heavy-duty use
👉 Two-stage systems are considered part of the “new generation” because they reduce energy consumption at higher pressures.
🧠 How to choose the right one
Choose 45 kW if:
You run medium operations
Want better ROI upfront
Air demand is moderate
Choose 55 kW if:
You need continuous, heavy-duty air supply
Multiple machines run simultaneously
Energy efficiency over time matters more than initial cost
Choose Two-stage if:
Pressure requirement >10 bar
You want long-term energy savings
📌 Final takeaway
For most industries:
45 kW = economical + sufficient
55 kW = future-proof + high-demand ready
Two-stage = advanced efficiency for heavy applications
