Claw vacuum pumps · Claw compressors

Atlas Copco DZS and DZS VSD+ series

The Atlas Copco DZS VSD⁺ series comprises single-stage, oil-free and air-cooled Class 0 dry claw vacuum pumps with integrated VSD⁺ inverter technology. The DZS 100, 200 and 400 VSD⁺ range was developed specifically for reliable rough vacuum applications with high energy efficiency and low maintenance.

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  • 13Models
  • 2Series
  • 65–1,140m³/h pumping speed at 50 Hz
  • 50mbar lowest ultimate pressure
  • 1.8–22kW rated motor power at 50 Hz
Atlas Copco DZS and DZS VSD+ series

Product overview

Products of the Atlas Copco DZS and DZS VSD+ series

Use the filters on the left to narrow the models down by their key figures. Each row leads to the model with its technical data and variants.

DZS series 8 models

DZS 065APumping speed 65 m³/h 50 Hz78 m³/h 60 HzUltimate pressure 50 mbarRated motor power 1.8 kW 50 Hz2.2 kW 60 HzVariants 12
DZS 065APPumping speed 65 m³/h 50 Hz78 m³/h 60 HzUltimate pressure Rated motor power 3.7 kW 50 Hz3.7 kW 60 HzVariants 5
DZS 150APumping speed 150 m³/h 50 Hz180 m³/h 60 HzUltimate pressure 50 mbarRated motor power 3.7 kW 50 Hz3.7 kW 60 HzVariants 12
DZS 150APPumping speed 150 m³/h 50 Hz180 m³/h 60 HzUltimate pressure Rated motor power 11 kW 50 Hz15 kW 60 HzVariants 6
DZS 300APPumping speed 238 m³/h 50 Hz280 m³/h 60 HzUltimate pressure Rated motor power 19 kW 50 Hz22 kW 60 HzVariants 6
DZS 300APumping speed 300 m³/h 50 Hz360 m³/h 60 HzUltimate pressure 140 – 200 mbarRated motor power 6.2 kW 50 Hz7.5 kW 60 HzVariants 12
DZS 500 VPumping speed 500 m³/h 50 Hz600 m³/h 60 HzUltimate pressure 200 mbarRated motor power 9.2 kW 50 Hz11 kW 60 HzVariants 8
DZS 1000 VPumping speed 950 m³/h 50 Hz1,140 m³/h 60 HzUltimate pressure 200 mbarRated motor power 18.5 kW 50 Hz22 kW 60 HzVariants 8

DZS VSD+ series 5 models

DZS 100 VSD+Pumping speed 105 m³/h 50 Hz105 m³/h 60 HzUltimate pressure 50 mbarRated motor power 3 kW 50 Hz3 kW 60 HzVariants 3
DZS 200 VSD+Pumping speed 189 m³/h 50 Hz189 m³/h 60 HzUltimate pressure 50 mbarRated motor power 5.5 kW 50 Hz5.5 kW 60 HzVariants 3
DZS 400 VSD+Pumping speed 398 m³/h 50 Hz398 m³/h 60 HzUltimate pressure 140 mbarRated motor power 11 kW 50 Hz11 kW 60 HzVariants 3
DZS 600 VSD+Pumping speed 600 m³/h 50 Hz600 m³/h 60 HzUltimate pressure 200 mbarRated motor power 11 kW 50 Hz11 kW 60 HzVariants 2
DZS 1200 VSD+Pumping speed 1,140 m³/h 50 Hz1,140 m³/h 60 HzUltimate pressure 200 mbarRated motor power 22 kW 50 Hz22 kW 60 HzVariants 2

Model comparison

About the series

Features and benefits of the DZS and DZS VSD+ series

The series at a glance

The compact and robust design allows space-saving installation and a long service life even under demanding operating conditions. The variable speed matches the pump performance to the actual demand and thereby reduces energy consumption.

The DZS VSD⁺ offers high ultimate vacuum, low operating costs, low noise emissions and high operational reliability.

With the DZS and DZS VSD+ series, Atlas Copco offers a powerful range of dry-running claw vacuum pumps that was developed for clean operation, high energy efficiency and reliable performance. The robust claw technology allows oil-free vacuum generation and low maintenance. The DZS VSD+ models adjust their speed automatically to the actual vacuum demand and thus offer a particularly energy-efficient solution for industrial vacuum applications with varying load.

Oil-free and clean operation

The Atlas Copco DZS and DZS VSD+ series works completely dry and oil-free. As a result, the pumped medium remains free of oil contamination, which makes the series particularly suitable for applications with high demands on a clean vacuum process.

High efficiency and reliable operation

The robust claw technology allows reliable vacuum generation combined with low maintenance. The DZS VSD+ adjusts its speed automatically to the actual vacuum demand and can thereby reduce energy consumption when the load varies.

Versatile for industrial applications

The various sizes and versions allow flexible adaptation to different process requirements. The DZS and DZS VSD+ series is suitable, among other things, for packaging, pneumatic conveying, central vacuum systems, food processing and general industrial vacuum applications.

Operating principle

The Atlas Copco DZS and DZS VSD+ series works on the principle of dry-running claw vacuum technology. Two counter-rotating claw rotors turn without contact inside the pump housing and convey the air drawn in continuously through the pump chamber. During transport, the gas is compressed and then discharged through the outlet.

As the DZS series runs dry and oil-free, the pumped medium does not come into contact with oil or lubricants. This makes the technology particularly suitable for processes that require a clean and contamination-free vacuum.

The robust construction and the contact-free claw principle allow reliable and low-maintenance operation. On the DZS VSD+ models, the speed of the pump is adjusted automatically to the actual vacuum demand, which can reduce energy consumption under changing operating conditions.

The DZS and DZS VSD+ series is suitable for numerous industrial applications that call for dry, oil-free vacuum, high operational reliability and energy-efficient operation.

The technology page shows the operating principle with an interactive drawing: Claw vacuum pumps.

Standard operating conditions and performance

  • Ambient temperature: 0 to 40 °C, depending on model and version
  • Designed for dry, oil-free vacuum applications

Frequently asked questions

Questions about the Atlas Copco DZS and DZS VSD+ series

Which models does the Atlas Copco DZS and DZS VSD+ series comprise?
The Ehrler & Beck catalogue lists 13 models of the series. The product overview names each model with its key figures and the number of its variants; the model page shows the technical data.
Which pumping speeds does the series cover?
At 50 Hz the models cover pumping speeds from 65 to 1,140 m³/h. The figure comes from the product data of the individual models; values for 60 Hz, where available, are given in the product overview.
What ultimate pressure do the models of the series reach?
Depending on the model, the ultimate pressure lies between 50 and 200 mbar. The figures on the page of the respective model are decisive.
How does the technology of the series work?
The series belongs to the field of claw vacuum pumps. The technology page explains the operating principle with an interactive drawing and names all series of this technology.
Does Ehrler & Beck supply spare parts and service for the Atlas Copco DZS and DZS VSD+ series?
Yes. Ehrler & Beck supplies the models of the series as well as spare parts and accessories and takes care of maintenance and repair. For a quotation, an enquiry with the model or part number is all it takes.

Which model fits your process?

Tell us the gas to be conveyed, the working pressure and the flow rate you need – we will advise you on selection, spare parts and service.

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