WALTER SF 90 KSP Screw Compressor power input 90 kW, air delivery 6–16 m³/min at 8 bar, direct drive, inverter, 7-year warranty

Code: SF-90-KSP
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Šroubový kompresor WALTER SF 90 KSP
€0,05 / pcs €0,04 excl. VAT Measure price:
up to 14 days
Delivery to:
02.11.2026
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Industrial machine with an inverter for variable demand, the first model in the range with a DN 65 connection. It weighs 1,795 kg, noise level is 70 dB(A). The housing with a footprint of 2,727 × 1,666 mm is shared with two other models.

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Product detailed description

Screw compressor WALTER SF 90 KSP with DN 65 connection

The DN 65 connection and the 2,727 × 1,666 × 1,800 mm housing distinguish the SF 90 KSP from all smaller models in the range.

At 8 bar it delivers 6–16 m³/min, at 10 bar 5.2–13.7 m³/min, and at 13 bar up to 12.3 m³/min. The housing is shared with the SF 110 KSP and SF 132 KSP.

16m³/min maximum air delivery at 8 bar
90kW motor power input
70dB(A) noise level
8–13bar operating pressure

Configuration of this machine

  • Single-stage screw airend · direct drive 1:1 · IE4 motor (IE5 optional) with inverter · submerged oil separator
  • Three pressures: 8, 10 and 13 bar
  • Housing shared with the SF 110 KSP and SF 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
Separation tank and screw block of the WALTER SF KSP compressor
Oil separator tank and screw airend
Axial cooling fan of the WALTER SF KSP compressor
Axial cooling fan

Who it suits

For industrial operation with variable demand, for which models with a G 2″ connection are no longer sufficient. The inverter adapts the output to the current air consumption, so the machine doesn't run at full capacity when demand doesn't require it.

When to choose a different model

Two-stage compression

The two-stage SF 90 DSP delivers up to 19.1 m³/min at 8 bar, 19% more, and is manufactured for the same three pressures.

More air in the same cabinet

The SF 110 KSP delivers up to 19.1 m³/min at 8 bar, weighs 2,124 kg, and has the same DN 65 connection.

What the parameters imply — calculated values

0.178m³/min of air delivery per 1 kW of power input at 8 bar
38 %of the maximum air delivery at 8 bar is provided by the machine at the lowest speed

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 connection differ from smaller models?
The 55 kW and 75 kW models have a G 2″ thread, while the SF 90 KSP already has DN 65.
In what range does the machine regulate its output?
At 8 bar from 6 to 16 m³/min, at 10 bar from 5.2 to 13.7 m³/min.

The machine comes with a 7-year warranty covering the entire machine. Warranty terms, maintenance, and a comparison of all 19 models can be found in the category Screw compressors WALTER SF KSP: inverter and direct drive.

Ventilek advises

The three large machines in one casing also differ in weight: the SF 90 KSP weighs 1,795 kg, the SF 132 KSP weighs 2,281 kg. Check the floor load capacity according to the model you ultimately want to have.

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: Yes

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