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Air blower ZS 4

air blower
air blower
air blower
air blower
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rotary, screw
Number of stages
Other characteristics
oil-free, compact
Operating pressure

Min.: 0 bar (0 psi)

Max.: 1.5 bar (21.756 psi)

Nominal power

Min.: 37 kW (50.31 hp)

Max.: 90 kW (122.37 hp)


Our new ZS 4 series (37-90 kW / 50-120 hp) combines Atlas Copco's trusted screw technology with our latest innovations to deliver you Class 0 certified oil-free air up to 1.5 bar(g) / 22 psig. Our newest generation is one of the most energy efficient oil-free screw blower solution on the market and ensures you of a very low lifecycle cost. Save 11% on energy With our newest generation of oil-free Class 0 certified rotary screw blowers we offer you one of the most energy efficient solution on the market, helping you save up to 11% on energy costs compared to the previous generation. 32% more air flow We combined our trusted screw technology with the latest innovations to create a new generation of oil-free screw blowers that deliver up to 32% more flow compared to the current ZS VSD (variable speed drive) models. Small and compact blower The new ZS 4 series is a small and compact solution that can be installed anywhere side-by-side. These small blower units are easy to maintain, fit perfectly into your existing blower room and can be placed outside in the toughest environments, allowing an ambient temperature up to 50°C/120°F. Setting a new standard for oil-free screw blower technology with our ZS 4, ZS 4 VSD & ZS 4 VSD+ The ZS 4, ZS 4 VSD & ZS 4 VSD+ are among the most compact screw blowers on the market, making them the ideal choice for the replacement of your exisiting blower units. Whether your process requires constant or variable air delivery, with our newest generation of rotary screw blowers you don't need to worry about your process uptime.


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*Prices are pre-tax. They exclude delivery charges and customs duties and do not include additional charges for installation or activation options. Prices are indicative only and may vary by country, with changes to the cost of raw materials and exchange rates.