Permanent magnet compressors for efficient 7.5–22 kW air supply
The Liutech L7.5–22 PMI range covers 7.5 to 22 kW oil‑injected screw compressors designed for reliable industrial air supply. Permanent‑magnet variable‑speed motors and direct drive technology minimise transmission losses while delivering stable pressure and responsive airflow across changing demand profiles.
Compact cabinets allow installation close to production equipment, reducing piping losses and saving floor space. Intuitive controls support easy monitoring and communication, this makes the L7.5–22 PMI range a practical, efficient solution for workshops, manufacturing and general industrial applications requiring dependable compressed air.
The L7.5–22 PMI compressors are designed for straightforward maintenance and long service intervals. Wide‑opening panels provide clear access to filters, separators and coolers, while front pre‑filter meshes help protect internal components from dust and contamination in workshop and factory environments.
Permanent‑magnet variable‑speed technology significantly reduces energy consumption by motor regulation in line with actual air demand. Compared with fixed‑speed operation, this lowers idle losses and delivers meaningful electricity savings in applications with fluctuating usage.
Compact layout, reduced pressure drop to improve system efficiency. Lower energy use, simplified installation and reduced maintenance effort combine to deliver a lower total cost of commissioning.
Technical information
| Model | Pressure | Motor | Capacity | Weight (CE) | Connection | Dimension | |
|---|---|---|---|---|---|---|---|
| bar(e) | kW | l/s | cfm | Kg | G | LxWxH (mm) | |
| L7.5 PMI | 7 | 7.5 | 20 | 43 | 112 | G1/2'' | 774x618x710 |
| 8 | 19 | 40 | |||||
| 10 | 17 | 35 | |||||
| L11 PMI | 7 | 11 | 32 | 68 | 174 | G3/4'' | 950x650x917 |
| 8 | 32 | 68 | |||||
| 10 | 29 | 60 | |||||
| L15 PMI | 7 | 15 | 39 | 82 | 174 | G3/4'' | 950x650x917 |
| 8 | 39 | 82 | |||||
| 10 | 31 | 65 | |||||
| L22 PMI | 7 | 22 | 63 | 134 | 237 | G1'' | 1000x725x1090 |
| 8 | 63 | 133 | |||||
| 10 | 53 | 112 | |||||
Unit performance measured according to ISO 1217, Annex C, ed.4 2009.
L7.5-22 PMI
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Download the brochure to explore the full details of this Liutech range. Inside, you'll find key product features, technical specifications, available configurations, and insights to help you select the right solution for your compressed air requirements.
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