A Series

Alfa Laval’s comprehensive range of separators for the dairy industry includes our unique technology for anhydrous milk fat production (AMF). The A Series of hermetic separators provide an efficient, reliable and cost-effective separation solution.

Dairy PX 18 A, H, C, W, WD and BM Series

Advanced technology for anhydrous milk fat processes

  • Alfa Laval’s unique, bottom-fed, Hermetic Design provides premium oil purification efficiency for maintaining a high product quality
  • The bottom-fed design reduces shear forces for gentle product treatment with a minimum level of emulsification
  • Hermetic seals on inlet and outlet prevent oxidation
  • Easy adaptation to process conditions provides increased production flexibility and efficient CIP
  • Energy savings of up to 60% thanks to the Hermetic Design

Efficient separation for high product quality in AMF

Purification of anhydrous milk fat, or butteroil, is a niche application within dairy processing where our technology brings value to the process. In addition to preventing oxygen pick-up and preserving product quality, our unique, bottom-fed Hermetic Design gives you high separation efficiency, low energy consumption and superior process flexibility.

Where to use Alfa Laval A Series

Where to use the A Series

Common applications: butter and spread processing


Features that make the difference

What sets Alfa Laval separators apart is what’s on the inside: a broad scope of unique and patented technologies that, taken together, help dairy customers achieve improved product quality along with superior hygienic confidence. They also make it possible to drastically decrease both water and energy consumption, reducing both operational costs and environmental footprint.


Hermetic Design

Gentle acceleration, powerful efficiency

A unique air-tight bowl that enables improved product quality and drastically reduces power consumption.



Mechanical simplicity for higher efficiency and lower costs

A direct-drive system with fewer rotating parts that minimizes both maintenance and energy costs.



New levels of capacity and hygiene

A radical new disc design that decreases cleaning needs while increasing flow rate by up to 20%.



Double the output per kWh

An innovation to minimize friction, which cuts the separator´s energy consumption and CO2 footprint by up to 70%.



Outstanding solids capacity

Continuous solid discharge ensures an intact and highly concentrated stream for onward processing or as a valuable by-product. This makes it possible to increase separation capacity.

The Separator Innovator

Alfa Laval invented the first disc stack separator over a century ago. Since then, we have led the way by constantly improving and reinventing centrifuge technology. Making it safer, more efficient, and more sustainable. Visit our Separator Innovator knowledge base and discover how we continue to revolutionize separation processes across industries.

Separator Innovator 640x360