Screw compressor WALTER SF 15 KSP power input 15 kW, air delivery 0.92–2.25 m³/min at 8 bar, direct drive, inverter, 7-year warranty
Code: SF-15-KSPProduct detailed description
WALTER SF 15 KSP screw compressor, the most powerful model with optional tank and dryer
The SF 15 KSP is the most powerful of the models that can optionally be equipped with an air receiver and/or a dryer. At 8 bar it delivers up to 2.25 m³/min, at 10 bar 2.15, and at 13 bar 2.07 m³/min.
The housing, 1,090 × 730 × 1,080 mm, is shared with the SF 11 KSP, weighing 243 kg. Above this output, the range continues in a larger housing.
Configuration of this machine
- Single-stage screw airend · direct drive 1:1 · IE4 motor (IE5 optional) with inverter · submerged oil separator
- Three pressures: 8, 10 and 13 bar
- Housing shared with the SF 11 KSP, weight 243 kg
- Connection G ¾″, noise level 62 dB(A)
- Power supply 400 V / 3 / 50 Hz, WALTER CONTROLLER control unit


Who it suits
For operations where daytime demand fluctuates and where a ready-made unit with a tank and dryer may be useful. The control range at 8 bar is 0.92–2.25 m³/min.
When to choose a different model
An already complete set
A 500 l air tank and a dryer in one unit is offered by the SFTG 15/500 KSP COMBO. The set weighs 492 kg.
More air
The SF 18,5 KSP delivers up to 3.2 m³/min at 8 bar. It has a larger housing (1,300 × 880 × 1,170 mm), weighs 378 kg, and the connection is G 1″.
What the parameters imply — calculated values
The values are calculated from the maximum air delivery at 8 bar and serve for comparing models with each other, not as a guaranteed value.
Frequently asked questions
- What is the difference compared to the SK 15 KSP?
- The SK 15 KSP is the same machine without an inverter, with fixed speed. It has the same maximum air delivery at 8 bar, 2.25 m³/min, but it has no control range.
- How much space does the assembly with the tank and dryer take up?
- The SFTG 15/500 KSP COMBO assembly has a housing of 1,970 × 760 × 1,750 mm and weighs 492 kg. The SF 15 KSP alone is smaller: 1,090 × 730 × 1,080 mm and 243 kg.
The machine comes with a 7-year warranty covering the entire machine. Warranty terms, maintenance, and a comparison of all 19 models can be found in the category Screw compressors WALTER SF KSP: inverter and direct drive.
Ventilek’s tip
The complete assembly on the air receiver is supplied as a single unit, so it takes up less space and installation is quick. The standalone unit is suitable where you already have an air receiver.
Additional parameters
| Category: | Air compressors |
|---|---|
| Warranty: | 7 let |
| Compressor type: | Screw compressor |
| Pressure: | 8 bar, 10 bars, 13 bar |
| Air delivery: | 2 250 l/min |
| Pressure vessel volume: | It isn't |
| Connecting: | 3/4" |
| Motor power: | 15 kW |
| Mains voltage: | 400/50 V/Hz |
| Lubrication: | Oleic |
| Noise: | 62 dB(A) |
| Weight: | 243 kg |
| Engine: | Electric |
| Drive: | Direct |
| Air dryer: | No |
| Retrieved from: | Professional |
| Development: | Stationary |
| Inverter: | Yes |
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WALTER Kompressortechnik - Innovative Solutions for Compressors
- About the company WALTER: WALTER Kompressortechnik is a renowned manufacturer of air compressors and accessories, known for its quality, reliability and innovative technologies. The company focuses on providing highly efficient solutions for various industries.
- Product portfolio:
- Screw compressors: we offer a wide range of screw compressors that are designed for maximum energy efficiency and long life. Ideal for high demanding industrial applications.
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- Mobile compressors: lightweight and easily portable compressors that allow easy use in a variety of locations, ideal for construction and field work.
- Scroll and special compressors: provide quiet operation and are suitable for specific applications requiring minimal vibration and noise.
- Innovation and quality: WALTER emphasizes continuous development and improvement of its products to ensure maximum customer satisfaction. Their compressors are equipped with advanced technologies to optimise performance and save energy.
- Customer support and service: the company offers comprehensive service, including installation, maintenance and diagnostics, ensuring the long-term reliability and efficiency of their equipment.

