WALTER SFTG 7,5/300 KSP Screw Compressor power input 7.5 kW, air delivery 0.42–1.15 m³/min at 8 bar, air tank 300 l, inverter, 7-year warranty
Code: SFTG-7-5/300-KSPProduct detailed description
WALTER SFTG 7,5/300 KSP screw compressor for pressure up to 13 bar
The SFTG 7,5/300 KSP maintains air delivery even at higher pressure: at 8 bar it delivers up to 1.15 m³/min, and at 13 bar still 0.95 m³/min, i.e. 83% of the 8 bar value.
The assembly dimensions of 1,683 × 739 × 1,629 mm and weight of 326 kg are the same as for the SFTG 5,5/300 KSP. Compared to the SFTG 7,5/270 KSP, it is 403 mm longer, but the air receiver is 300 l instead of 270 l.
Configuration of this machine
- Direct drive 1:1 · IE4 magnetic motor (IE5 optional) · inverter
- Three pressures: 8, 10 and 13 bar
- 300 l air receiver, assembly 1,683 × 739 × 1,629 mm, weight 326 kg
- G ¾″ connection, noise level 60 dB(A), winding thermal protection and soft start
- Power supply 400 V / 3 / 50 Hz, WALTER CONTROLLER control unit



Who is it suitable for
For a workshop or smaller production with several outlet points and tools that require higher pressure. The inverter maintains pressure even with fluctuating consumption, and the air receiver evens out short peaks. With the same housing as the 5.5 kW model, the main gain is performance at higher pressure.
When to choose a different model
Belt drive
The SKTG 7,5/300 SP has the same air receiver and the same weight, but with belt drive and fixed speed. At 13 bar it delivers 0.85 m³/min, while the SFTG 7,5/300 KSP delivers up to 0.95 m³/min, i.e. 12% more.
With dryer
In the same housing, and additionally with a dryer and filters, is the SFTG 7,5/300 KSP COMBO. The assembly weighs 369 kg.
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
- How much energy does the inverter save?
- Up to 35% compared to a machine with constant output, with variable air consumption. With constant draw-off, the savings are smaller.
- What is the control range at 13 bar?
- From 0.43 to 0.95 m³/min. In this range, the inverter continuously adjusts the speed to the demand.
The machine is covered by a 7-year warranty on the whole machine. Warranty conditions, maintenance and a comparison of all 14 models can be found in the category Screw compressors WALTER SFTG KSP: with inverter on the air receiver.
Ventilek’s advice
At 13 bar, the air delivery is 17% lower than at 8 bar, so it is advisable to take into account the value at the pressure that is actually used.
Additional parameters
| Category: | Air compressors |
|---|---|
| Warranty: | 7 let |
| Compressor type: | Screw compressor |
| Pressure: | 8 bar, 10 bars, 13 bar |
| Air delivery: | 1 150 l/min |
| Pressure vessel volume: | 300 L |
| Connecting: | 3/4" |
| Motor power: | 7.5 kW |
| Mains voltage: | 400/50 V/Hz |
| Lubrication: | Oleic |
| Noise: | 60 dB(A) |
| Weight: | 326 kg |
| Engine: | Electric |
| Drive: | Direct |
| Air dryer: | No |
| Retrieved from: | Professional |
| Development: | Stationary |
| Inverter: | Yes |
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- 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.
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