Oil-free rotary screw blower ZS (VSD+)

ZS (VSD+) oil-free screw blower, a true energy saver
ZS VSD+ screw blowers reduce energy costs up to 30% compared to conventional lobe blowers. They are Class 0-certified, have an easy set


Quality certified
ISO 9001 quality certification standard for all our oil-free screw technology. Our built quality increases your production reliability.

Maximize your energy savings
Compared to lobe technology the ZS oil-free screw saves an average of 30% on your energy costs. Further savings can be achieved with VSD technology.

Avoid oil contamination
Avoid the risk of contamination or production downtime with our ISO 8573-1 Class 0 certified positive displacement screw blowers.

More Class Zero range solutions

Easy installation
Minimize your installation time and costs with our complete ZS package design.

Quiet operation
Our ZS(VSD+) packages run at extremely low noise levels compared to open frame lobe blowers.

Intelligent control and monitoring
The advanced control system maximizes the reliability of your blower installation. Monitors overall system performance with service indications, malfunction alarms and safety shutdowns

Energy-efficient low pressure technology
This is the average energy saving you get when using ZS oil-free screw blowers compared to lobe technology.

Bring down your energy bill significantly

Rotary screw technology has now established itself as the energy efficient alternative to lobe type air blowers. Our ZS packages reduce your energy costs by an average of 30%. No matter which low pressure application (such as Waste Water Treatment, pneumatic conveying, desulphurisation), our ISO 8573-1 Class 0 certified positive displacement screw blowers protect all your critical processes and products. Variable speed drive technology helps you save even more money by adjusting the air pressure flow and motor speed to your specific needs.

Technical specifications


Capacity FAD l/s 69 l/s – 2,528 l/s
Capacity FAD 248 m³/h – 9,100 m³/h
Working pressure 0.3 bar(e) – 1.2 bar(e)
Installed motor power 18 kW – 355 kW


Capacity FAD l/s 69 gal/min – 2,528 gal/min
Capacity FAD 146.07 cfm – 5,359.9 cfm
Working pressure 4.4 psig – 17.4 psig
Installed motor power 24.14 HP – 476.06 HP