WALTER SF 30 DSP Screw Compressor power input 30 kW, air delivery 2.34–5.86 m³/min at 8 bar, two-stage, IE5 motor, 7-year warranty
Code: SF-30-DSPProduct detailed description
WALTER SF 30 DSP two-stage screw compressor
The SF 30 DSP builds on the smallest model in the range with higher output: at 8 bar it delivers up to 5.86 m³/min, at 10 bar up to 5.53 m³/min. Like the SF 22 DSP, it is produced for 8 and 10 bar.
It shares its housing, measuring 1,610 × 1,043 × 1,380 mm, with the SF 37 DSP. When you expand operations, higher output will fit into the same footprint.
Configuration of this machine
- Two-stage screw block · direct drive 1:1 · IE5 magnetic motor with inverter
- Working pressure 8 or 10 bar
- Housing shared with SF 37 DSP, weight 826 kg
- Connection G 1½″, noise level 65 dB(A)
- Power supply 400 V / 3 / 50 Hz, WALTER CONTROLLER control unit


Who it suits
For operations that already find 22 kW insufficient, but don't yet need a large compressor room. The inverter maintains pressure even with fluctuating demand, and the machine slows down at lower consumption.
When to choose a different model
Consumption around 7 m³/min
SF 37 DSP comes in the same housing and delivers up to 7.5 m³/min at 8 bar. It is also produced for 13 bar.
Constant consumption
The single-stage SF 30 KSP delivers up to 5.21 m³/min at 8 bar and weighs 518 kg. The two-stage SF 30 DSP delivers 12% more air.
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
- Can the SF 30 DSP be operated at 13 bar?
- No. The model is manufactured for 8 and 10 bar; 13 bar is only offered by the SF 37 DSP.
- What is the control range at 10 bar?
- 2.21–5.53 m³/min. The inverter continuously adjusts the output according to demand.
The machine is covered by a 7-year warranty on the entire machine. Warranty terms, maintenance, and a comparison of all 13 models can be found in the category WALTER SF DSP screw compressors: two-stage compression.
Ventilek advises
The range 2.34–5.86 m³/min means: below the lower limit the machine will not slow down further, and above the upper limit it will not add anything more. Look for a model where your typical demand falls somewhere in the middle.
Additional parameters
| Category: | Air compressors |
|---|---|
| Warranty: | 7 let |
| Compressor type: | Screw compressor |
| Pressure: | 8 bar, 10 bars |
| Air delivery: | 5 860 l/min |
| Pressure vessel volume: | It isn't |
| Connecting: | 1 1/2" |
| Motor power: | 30 kW |
| Mains voltage: | 400/50 V/Hz |
| Lubrication: | Oleic |
| Noise: | 65 dB(A) |
| Weight: | 826 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.

