Variable speed rotary screw compressor

EKO 8-22 VST

The EKO 8-22 VST series enhances a proven compressor range with advanced iPM variable speed technology. Covering 7.5 to 22 kW, it delivers premium‑grade efficiency, reduced operating costs and reliable performance for demanding industrial applications, while maintaining a compact and low‑noise design. 

Energy Efficiency

Advanced iPM variable speed technology adjusts motor speed to real air demand, delivering energy savings of up to 45% compared to fixed‑speed compressors.

Compact Design

Compact, low‑noise construction enables installation in compressor rooms or close to the point of use, with base‑ or tank‑mounted configurations available.

Smart Control

The ES4000 controller provides advanced monitoring, energy insight and connectivity, supporting stable operation, system protection and easier compressor management.

Advanced iPM technology for premium compressed air

The EKO 8–22 VST series is engineered to deliver premium efficiency through interior permanent magnet technology combined with direct drive. This design minimises transmission losses, improves motor performance and ensures stable output during fluctuating air demand. Built for continuous operation, the range supports long duty cycles and reliable performance in demanding industrial environments.

Thanks to its compact and low‑noise design, the EKO 8–22 VST integrates easily into new or existing installations. Multiple configurations, including base‑mounted and tank‑mounted versions with optional integrated dryers, provide flexibility while maintaining durability, efficiency and simplified ownership throughout the compressor lifecycle.

EKO 16-22 VST_ghost

The EKO 8–22 VST range covers motor power from 7.5 to 22 kW and typically operates between 4 and 10 bar. Free air delivery varies by model and pressure, with performance measured according to ISO 1217 standards. Noise levels are measured in accordance with ISO 2151, supporting installation near production areas.

Designed for long service life, the EKO 8–22 VST combines robust construction with simplified maintenance. The iPM motor is maintenance‑free, while the direct‑drive concept reduces mechanical wear. Accessible service points and clear controller diagnostics support predictable maintenance and reduced downtime.

Energy represents more than 70% of a compressor’s lifecycle cost. With energy savings of up to 45% versus fixed‑speed compressors, the EKO 8–22 VST delivers fast return on investment. Lower energy use, reduced maintenance needs and long equipment lifetime contribute to a lower total cost of ownership.

Technical informations

 

Model Min. working pressure Reference working pressure Motor power Min. FAD* Free Air Delivery @ reference conditions *
Max. FAD*
Noise level **
7 Bar 7 Bar 9.5 Bar 12.5 Bar
Bar Bar kW  HP m³/h l/s m³/h l/s m³/h  l/s m³/h  l/s dB(A)
EKO 8 VST 4 10 7,5 10 22 6,1 76,3 21,2 66,2 18,4 55,4 15,4 63
EKO 11 VST 4 10 11 15 19,8 5,5 114,1 31,7 94,7 26,3 75,6 21 64
EKO 15 VST 4 10 15 20 20,5 5,7 137,2 38,1 117,7 32,7 88,6 24,6 65
EKO 16 VST 4 10 15 20 36,4 10,1 178,6 49,6 153,4 42,6 130,3 36,2 66
EKO 18 VST 4 10 18,5 25 34,9 9,7 210,2 58,4 181,4 50,4 143,3 39,8 68
EKO 22 VST 4 10 22 30 34,9 9,7 241,6 67,1 204,8 56,9 185 51,4 70

* Unit performance measured according to ISO 1217, Annex C, latest edition
** Noise level measured according to ISO 2151:2004 using ISO 9614/2

EKO 8-22 VST

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