Screw compressor WALTER SK 90 KSP power input 90 kW, air delivery 16 m³/min at 8 bar, direct drive, fixed speed, 7-year warranty

Code: SK-90-KSP
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Šroubový kompresor WALTER SK 90 KSP
€0,05 / pcs €0,04 excl. VAT Measure price:
up to 14 days
Delivery to:
02.11.2026
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The lightest model in the large housing of 2,727 × 1,666 mm with the first DN 65 connection in the series, for industrial operation with constant demand. It weighs 1,795 kg, noise level 70 dB(A).

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Product detailed description

WALTER SK 90 KSP screw compressor with DN 65 connection

SK 90 KSP is the first in the SK KSP range to have a DN 65 connection. It shares the 2,727 × 1,666 × 1,800 mm housing with the 110 and 132 kW models.

At 8 bar it delivers 16 m³/min, at 10 bar 13.7 and at 13 bar 11.6 m³/min. With a weight of 1,795 kg it is the lightest of the three, the SK 110 KSP weighs 2,124 kg and the SK 132 KSP 2,281 kg.

16m³/min air delivery at 8 bar
90kW motor power input
70dB(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 of 16 m³/min at 8 bar, 13.7 at 10 bar and 11.6 at 13 bar
  • Housing shared with SK 110 KSP and SK 132 KSP, weight 1,795 kg
  • DN 65 connection, noise level 70 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 it suits

For industrial operation with continuous and steady demand, where the compressor is started at the beginning of the shift and runs without major fluctuations. The weight of 1,795 kg has implications for the design of the compressor room floor.

When to choose a different model

Lower output

One size down is the SK 75 KSP in a smaller housing of 2,158 × 1,331 × 1,600 mm. At 8 bar it delivers 12.7 m³/min and weighs 1,225 kg.

Two-stage compression

With two-stage compression and an inverter, there is the SF 90 DSP: at 8 bar it delivers up to 19.1 m³/min, 19% more, but it weighs 3,300 kg.

What the parameters imply — calculated values

0.178m³/min of air delivery per 1 kW of power input at 8 bar
73%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

How does the SK 90 KSP differ from the SK 75 KSP?
The housing is larger (2,727 × 1,666 × 1,800 mm compared to 2,158 × 1,331 × 1,600 mm), the connection changes from G 2″ to DN 65, and the weight increases from 1,225 to 1,795 kg. The power input is higher by 15 kW and the noise level by 2 dB(A).
How big is the machine?
Footprint 2,727 × 1,666 mm, height 1,800 mm, and weight 1,795 kg. Space must be left around the housing for servicing and for the supply of cooling air.

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

The piping to the DN 65 connection is significantly thicker than on smaller machines. It is advisable to account for the piping already during the planning of the compressor room.

Additional parameters

Category: Air compressors
Warranty: 7 let
Compressor type: Screw compressor
Pressure: 8 bar, 10 bars, 13 bar
Air delivery: 16,000 l/min
Pressure vessel volume: It isn't
Connecting: DN65
Motor power: 90 kW
Mains voltage: 400/50 V/Hz
Lubrication: Oleic
Noise: 70dB(A)
Weight: 1 795 kg
Engine: Electric
Drive: Direct
Air dryer: No
Retrieved from: Professional
Development: Stationary
Inverter: No

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