Atlas Copco’s second-generation DZS A series dry claw vacuum pumps are the new standard of vacuum efficiency. Taking a step further from the previous generation, this updated series provide superior vacuum performance with high pumping speeds and deep ultimate vacuum levels. The DZS A series dry mono claw vacuum pumps are easy to maintain with a separate and isolated pumping element allowing quick access to the pumping chamber. This ensures ease of service and on-site maintenance, helping you meet your operational goals with no lag in efficiency.

The Atlas Copco DZS oil-free claw blower delivers clean, reliable and efficient low-pressure air for demanding industrial processes.
Featuring proven dry claw technology, the DZS provides oil-free and dry compressed air without oil entering the compression chamber. Its compact design, low maintenance requirements and reliable operation make it an ideal solution for applications requiring relatively low airflow and pressure.
The DZS is particularly well suited for centralized or decentralized installations where dependable Class 0 oil-free air is essential.
Technical Specifications
| Specification | DZS |
|---|---|
| Technology | Oil-Free Dry Claw |
| Compressor / Blower Type | Rotary Claw |
| Air Quality | ISO 8573-1 Class 0 |
| Working Pressure | 0.5–2.3 bar(g) |
| Air Flow | 110–340 m³/h |
| Air Flow | 65–200 cfm |
| Motor Power | 11–22 kW |
| Installation | Centralized or Decentralized |
| Maintenance | Low Maintenance |
| Drive | Fixed Speed |
Atlas Copco’s published DZS 150P/300P data specifies 110–340 m³/h, 0.5–2.3 bar(g) and 11–22 kW.
Key Benefits
100% Oil-Free Air
The DZS delivers Class 0 certified oil-free air, helping protect production processes and end products from oil contamination.
Proven Dry Claw Technology
The claw-shaped rotors operate with tight clearances to provide reliable and efficient low-pressure air generation. The male rotor is directly driven by the motor, while the female rotor is driven through precision gearing.
Low Lifecycle Cost
The DZS is designed for efficient operation, long service life and reduced maintenance requirements, helping minimize the total cost of ownership.
Compact Footprint
Its compact package makes the DZS suitable for installations where floor space is limited. The unit can be integrated into both centralized and decentralized air systems.
Easy Maintenance
The dry claw element is designed for straightforward access and maintenance. The robust construction helps support reliable continuous operation.
Plug & Play Installation
The DZS is designed for fast and simple installation. Its compact package and straightforward connections can help reduce installation complexity and associated costs.
Applications
Wastewater Treatment
The DZS provides reliable aeration air for wastewater treatment applications, particularly installations with relatively low air demand.
Fermentation
Clean, oil-free air is essential for fermentation processes. DZS dry claw technology provides a reliable source of process air for fermentation tanks.
Pneumatic Conveying
The DZS can provide low-pressure air for conveying powders, granules and other bulk materials.
Cement & Bulk Material Handling
The compact dry claw design is suitable for applications involving silos and material handling where reliable low-pressure air is required.
Food & Beverage
Class 0 oil-free air helps reduce the risk of oil contamination in processes where compressed air comes into contact with products or production environments.
Industrial Aeration
DZS blowers can be used for aeration applications requiring stable, clean and reliable low-pressure air.


