Lubricated Rotary Screw Compressor 22 - 30 kW
CompAir L23 - L29, RS
The L-Series from CompAir
Well known in the industry for quality and reliability CompAir continuously develops the L-Series achieving cutting edge performance and efficiency. The L23-L29 range of lubricated screw compressors comprises of fixed speed and regulated speed (RS) models.
Engineering Excellence
Benefits to you:
High reliability and high quality compressed air
Superior energy efficiency
High flexibility
Small footprint
Low maintenance & servicing costs
Engineering excellence
Premium efficiency airend
Time proven inverter concept
iConn industry 4.0 Solution
Integrated heat recovery
Water Separator
Compressed Air Filter
Condensate Drain Solution
Compressed Air Refrigerant Dryer
Heatless Desiccant Dryers
Heat Regenerative Desiccant Dryers
Nitrogen Generator
SmartAir Master Multi Compressor Controllers
The CompAir L23–L29 (22–30 kW) lubricated rotary screw compressor range sits a level above the 7–11 kW class you mentioned earlier—it’s designed for medium-scale industrial plants where air demand is higher, more continuous, and often variable.
Here’s a clear, practical breakdown 👇
🔧 Overview: CompAir L23–L29 Series (22–30 kW)
Power range: 22 kW to 30 kW (≈ 30–40 HP)
Flow range: ~0.92 to 5.52 m³/min
Pressure range: typically 5–13 bar
Available in:
Fixed Speed (L23 / L29)
Regulated Speed – RS (Variable Speed)
👉 Built for continuous-duty industrial use like fabrication, automotive, plastics, packaging, and process industries.
⚙️ Fixed vs Regulated Speed (RS)
🔹 Fixed Speed (L23 / L29)
Runs at constant RPM
Best for stable, continuous load
Lower purchase cost
Example:
L23 → ~4.16 m³/min @ 7.5 bar
L29 → ~5.52 m³/min @ 7.5 bar
👉 Choose this if:
Your machines run continuously
Demand doesn’t fluctuate much
🔹 Regulated Speed (RS / VSD)
Adjusts output based on demand
Saves significant energy during partial load
Higher initial cost, lower operating cost
⚙️ Key Features (Why L-Series is popular)
Premium airend design → higher efficiency, lower energy consumption
IE3 high-efficiency motor → better power usage
Low maintenance design → fewer hoses, integrated oil system
Delcos Pro controller → advanced monitoring & automation
Integrated dryer + heat recovery options available
Low noise (~67–69 dB) → suitable for indoor installation
Power 22 kW 30 kW 30 kW
Type Fixed Speed Fixed Speed Variable Speed (RS)
Airflow (approx) Up to ~4.1 m³/min Up to ~5.5 m³/min 1.1–5.4 m³/min
Pressure Range 5–13 bar 5–13 bar 5–13 bar
Energy Efficiency High High Very High (load-based)
Noise Level ~67 dB ~69 dB ~69 dB
Best Use Case Medium steady load Higher steady load Variable demand factories
🧠 How to Choose (Simple Logic)
Go for L23 (22 kW) → if your plant is mid-size and demand is stable
Go for L29 (30 kW) → if you need higher airflow continuously
Go for L29 RS (VSD) → if:
Demand fluctuates
You want long-term electricity savings
✅ Bottom Line
The CompAir L23–L29 series is a reliable mid-range industrial solution:
Fixed speed → lower cost, steady operations
RS (VSD) → higher efficiency, lower energy bills over time
