WALTER SFTG 11/500 KSP Screw Compressor power input 11 kW, air delivery 0.67–1.65 m³/min at 8 bar, air tank 500 l, inverter, 7-year warranty
Code: SFTG-11/500-KSPProduct detailed description
Screw compressor WALTER SFTG 11/500 KSP with immersion oil separator
SFTG 11/500 KSP is the first model in the SFTG KSP range to feature a long-life immersion oil separator; the smaller models have a spin-on separator.
At 8 bar it delivers up to 1.65 m³/min, at 10 bar up to 1.5 m³/min, and at 13 bar up to 1.3 m³/min. The unit, measuring 1,970 × 760 × 1,750 mm, has a 500 l air tank, which is the only tank size available for the 11 kW power rating.
Configuration of this machine
- Direct drive 1:1 · IE4 magnetic motor (IE5 optional) · inverter
- Three pressures: 8, 10 and 13 bar
- 500 l air tank, housing 1,970 × 760 × 1,750 mm, weight 430 kg
- G ¾″ connection, noise level 62 dB(A), submerged oil separator
- Power supply 400 V / 3 / 50 Hz, WALTER CONTROLLER control unit



Who it suits
For medium-sized operations with several outlet points, where 7.5 kW power is no longer sufficient. The inverter maintains pressure under fluctuating demand, and the 500 l air tank evens out short peaks. Compared to the SFTG 7,5/500 KSP, it delivers 43% more air at 8 bar.
When to choose a different model
With dryer
Dried air from a single unit is delivered by the SFTG 11/500 KSP COMBO, which is 57 kg heavier.
Fixed speed
For constant demand, the SKTG 11/500 KSP is sufficient. It has the same power rating and air tank, delivers 1.65 m³/min at 8 bar, and weighs 426 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 does the housing differ from the smaller models?
- The 1,970 × 760 × 1,750 mm assembly is 40 mm wider and 50 mm taller than the 5.5 and 7.5 kW models on a 500 l air receiver. The length of 1,970 mm is the same.
- What is the difference compared to the standalone SF 11 KSP?
- The machine without tank with the same air delivery is SF 11 KSP. It weighs 243 kg, the assembly on the air receiver is heavier by 187 kg.
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 advises
The lower limit of the regulation range at 8 bar is 0.67 m³/min. If the consumption is permanently lower, it is better to choose a smaller model.
Additional parameters
| Category: | Air compressors |
|---|---|
| Warranty: | 7 let |
| Compressor type: | Screw compressor |
| Pressure: | 8 bar, 10 bars, 13 bar |
| Air delivery: | 1 650 l/min |
| Pressure vessel volume: | 500 L |
| Connecting: | 3/4" |
| Motor power: | 11 kW |
| Mains voltage: | 400/50 V/Hz |
| Lubrication: | Oleic |
| Noise: | 62 dB(A) |
| Weight: | 430 kg |
| Engine: | Electric |
| Drive: | Direct |
| Air dryer: | No |
| Retrieved from: | Professional |
| Development: | Stationary |
| Inverter: | Yes |
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