Representative photo of the series, non-contractual.
K Series — 4-in-1 compressors, screw compressor 7.5 kW
K 75Screw compressor 7.5 kW 4-in-1
Compressor, 420 L air receiver, refrigerated dryer and filtration combined on a single frame.
- Power
- 7.5kW
- Maximum pressure
- 13bar
- Air flow (ISO 1217) · 8 bar
- 1.1m³/min
- Weight
- 310kg
4-in-1 version: compressor, 420 L air receiver, refrigerated dryer and filtration built in.
- 2 years warranty
- Parts for 15 years · stock in England
- CE compliance
Pressure and colour confirmed with your order. Photo may not show the chosen colour.
Volume discounts and reseller pricing on quote.
Not sure which model? Try the configurator
Description
At the heart of the machine is a high-efficiency screw air-end, driven by an IP55-protected motor (insulation class F). An electronic controller with display constantly monitors pressure, temperature and running hours, and protects the machine if anything goes wrong. You set the working pressure: the compressor builds up to that value, stops on its own, then restarts automatically as soon as the pressure drops below the set threshold.
- Air-cooled, with an oil content in the compressed air of 3 ppm maximum at the compressor outlet.
- Standard wear parts (filters, oil, separator): maintenance stays simple and affordable.
- Every machine is checked and tested before shipping.
On the K Series, tank, refrigerated dryer and filtration are mounted on the same frame: one machine to set down and connect.
| Power | 7.5 kW |
|---|---|
| Technology | 4-in-1 screw compressor |
| Maximum pressure | 8, 10 or 13 bar, your choice |
| Air flow (ISO 1217) | 1.1 m³/min at 8 bar; 0.95 m³/min at 10 bar; 0.8 m³/min at 13 bar |
| Air receiver | 420 L |
| Drying and filtration | Built-in refrigerated dryer + filtration |
| Colour | Blue, black and yellow, or black and red |
| Power supply | 400 V three-phase / 50 Hz |
| Cooling | Air-cooled |
| Noise level | 66 ± 2 dB(A) |
| Outlet connection | G 3/4" |
| Dimensions | 1650 × 850 × 1200 mm (L × W × H) |
| Weight | 310 kg |
| Service intervals | 500 hours, then every 1,500 hours (reminder shown by the controller) |
| Oil | 4 L, Shell Corena S3 R recommended |
| Documentation | Manual and technical documentation |
| Warranty | 2 years |
Maintenance
Service parts for your compressor
First service at 500 hours, then every 1,500 hours. With the parts on hand, your K 75 is not left standing on service day.
Frequently asked questions
Can a screw compressor run all day?
Yes. Compression by two rotating screws is continuous: a screw compressor is designed for continuous operation, unlike a piston compressor, which needs rest periods.
Are your screw compressors supplied with an air receiver?
The K series 4-in-1 compressors (7.5, 11 and 15 kW) include the air receiver, refrigerated dryer and filtration. The S series stand-alone screw compressors (5.5 to 132 kW) are supplied without receiver or dryer, to be added to your network. We can quote the complete set-up.
When is the first service due?
The first service comes early, to remove running-in residues: at 500 hours, then every 1,500 hours. The machine's controller displays the reminder, and the intervals are in the manual.
Who installs and services the compressor in the UK?
Our technicians and dealers in the UK, Scotland included, install and commission AIRSTAHL compressors, carry out servicing and handle repairs. Spare parts ship from our stock in England to England, Scotland, Wales and Northern Ireland.
What is the warranty?
AIRSTAHL compressors come with a 2-year warranty. Spare parts remain available for 15 years, with stock in England.
K Series — 4-in-1 compressors
11kW
K 110Screw compressor 11 kW 4-in-1
Compressor, air receiver, refrigerated dryer and filtration combined on a single frame, at 11 kW.
15kW
K 150Screw compressor 15 kW 4-in-1
Compressor, air receiver, refrigerated dryer and filtration combined on a single frame, at 15 kW.
K 75 — Screw compressor 7.5 kW 4-in-1
Free quote, configuration advice, volume discounts.