WALTER SK 15 KSP screw compressor power input 15 kW, air delivery 2.25 m³/min at 8 bar, direct drive, fixed speed, 7-year warranty

Code: SK-15-KSP
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Šroubový kompresor WALTER SK 15 KSP
€6 314,70 / pcs €5 218,76 excl. VAT Measure price:
up to 14 days
Delivery to:
02.11.2026
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A model for smaller operations that need more air than the SK 11 KSP can handle, while not wanting a larger machine. It weighs 244 kg, the housing has a footprint of 1,090 × 730 mm and a G ¾″ connection. Noise level 62 dB(A).

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Product detailed description

Screw compressor WALTER SK 15 KSP: more air in the same housing as SK 11 KSP

SK 15 KSP has the same housing and weight as SK 11 KSP, but higher power input. At 8 bar it delivers 2.25 m³/min, at 10 bar 2.15 and at 13 bar 2 m³/min.

Compared to SK 11 KSP, which delivers 1.65 m³/min at 8 bar, this is 36% more air. The housing 1,090 × 730 × 1,080 mm, weight 244 kg and noise level 62 dB(A) remain the same.

2.25m³/min air delivery at 8 bar
15kW motor power input
62dB(A) noise level
8–13bar operating pressure

Configuration of this machine

  • Screw element coupled directly to the motor · fixed speed without inverter · three-stage oil separation
  • Air delivery 2.25 m³/min at 8 bar, 2.15 at 10 bar and 2 at 13 bar
  • Housing shared with SK 11 KSP, weight 244 kg
  • Connection G ¾″, noise level 62 dB(A)
  • Power supply 400 V / 3 / 50 Hz, WALTER CONTROLLER control unit
Piping and oil distribution in the housing of the WALTER SK KSP compressor
Piping and oil lines in the housing
Electric motor with cooling fins in the WALTER SK KSP compressor
Electric motor with cooling fins

Who is it suitable for

Suitable where 11 kW is no longer enough and there is no room for a larger housing. Fixed speed assumes consumption that does not fluctuate too much during a shift.

When to choose a different model

Need a larger machine

If even 15 kW is not enough, the next size up is SK 18,5 KSP. The housing is larger (1,300 × 880 × 1,170 mm), the connection is G 1″ and at 8 bar it delivers 3.2 m³/min.

Fluctuating consumption

The same power input with an inverter is offered by SF 15 KSP. It is in the same housing (1,090 × 730 × 1,080 mm) and regulates air delivery at 8 bar within the range of 0.92–2.25 m³/min.

What the parameters imply — calculated values

0.150m³/min air delivery per 1 kW power input at 8 bar
89%of air delivery at 8 bar remains at a pressure of 13 bar

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

Is SK 15 KSP also available in a set with an air receiver and dryer?
Yes. With a 500 l air tank it is the SKTG 15/500 KSP, and with a dryer in the set it is the SKTG 15/500 KSP COMBO.
How often is the SK 15 KSP serviced?
Servicing is carried out every 2,000 engine hours.

The machine is covered by a 7-year warranty on the entire machine. Warranty conditions, maintenance, and a comparison of all 17 models can be found in the category WALTER SK KSP screw compressors: direct drive without losses.

Ventilek advises

Between the two models in the same housing, the decisive factor is the required air delivery, since the footprint and weight do not change.

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: 244 kg
Engine: Electric
Drive: Direct
Air dryer: No
Retrieved from: Professional
Development: Stationary
Inverter: No

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