Vacuum Pump Technologies

You may think you know pretty much everything there is to know about vacuums. You push one around your house to pick up dust on the floor and that’s about all there is to it.

Far from it.

Vacuums are used in so many places, and for so many purposes, that it’s almost mind-boggling. Think of the package of yogurt you sometimes have in the morning. A vacuum was used to make that packaging and keep the yogurt fresh. You’ve had a soda before, right? Vacuum pumps are used to make those cans!

When paper is manufactured, the heavier loads are lifted and forwarded using vacuum pumps. In hospital rooms, there are bound to be vacuum pumps for various applications such as using suction during surgery.

And it is unfathomable for virtually any segment of the computer industry not to use a vacuum pump.

You would be hard-pressed to find an industry that doesn’t use vacuum pumps. They keep our food fresh and enhance our lives. They simplify, accelerate, and lower

costs of manufacturing

Let's learn about the difference types of Vacuum Pumps

Vacuum Pump Technologies

Rotary Vane Vacuum Pump: A rotary vane pump consists of sliding vanes mounted in a spinning rotor within a pump housing.  This rotor is offset, resulting in varying pockets sizes between the rotor and housing.  These pockets reduce in size traveling from the inlet side of the pump to the discharge side;  this creates suction of the gas from the connected process or chamber. 

Screw Vacuum Pump: Screw technology utilizes two mating screw rotors rotating in opposite directions.  A volume of gas is trapped between the screws and the housing at one end.  As the gas travels the length of the screws it is compressed and discharged on the opposite end.  Some advantages of this technology are reduced heat load, smoother operation, greater efficiency, and more turn-down capability.

Liquid Ring Vacuum Pump: Liquid ring vacuum pumps require a seal liquid to function; the most common liquid is water.  An eccentrically installed impeller rotates in the casing partly filled with liquid. By the rotational movement of the impeller, centrifugal force throws the liquid outward. Gas is trapped in the spaces between the impeller vanes and the liquid ring.  Due to the eccentric installation of the impeller, the spaces enlarge, and the process gas is sucked in through the inlet port.  As the impeller further rotates, the spaces shrink so the gas gets compressed and discharged through the discharge port.

Claw Vacuum Pump: This type consists of two claw-shaped rotors turned in opposite directions inside a housing. The interlocking shape of the rotors makes it possible for the air or gas to be drawn in at a large volume, compressed, and then discharged.  Due to the tight clearances, these pumps do not require liquid to seal and lubricate the vacuum pump.  This makes the claw vacuum extremely robust and able to withstand harsh operating conditions.

Browse our range of Vacuum Pumps

Claw Pumps

The Ash Air range of rotary claw vacuum pumps is the best alternative to rotary vane pumps. A vacuum claw pump is virtually zero maintenance and compared to rotary vane pumps can work at vacuum levels of 400 to 1000 mbar without overheating. Rotary claw vacuum pumps are the best choice for CNC guided wood routers.

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Liquid Ring Pumps

The Ash Air range of humble liquid ring pumps is still the most reliable form of large volume vacuum generation available today. These liquid ring pumps are simple to use and very reliable, and the best option when sucked air contains a large amount of saturated gas.

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Rotary Vane Pumps

Dry and oil-sealed vane vacuum pumps are robust, affordable and easy in maintenance. You can use DVP vane pumps for wide range of application, for skin packaging, holding, lifting, thermoforming.

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Screw Vacuum Pumps

We have a quality range of oil-sealed screw pumps for sale that are energy efficient and have low life-cycle costs.

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Who we are and how Ash Air can help your business!

Ash Air has been around in New Zealand since 1979, and we’ve grown into a nationwide company with international support and a reputation for quality and reliability.We look after all things compressed air for your business!

  • Rotary Screw and Piston Air Compressors
  • Vacuum Pumps and Blowers
  • Nitrogen Generation
  • An extensive line of Air Treatment components
  • AIRnet Piping System and  Filtration
  • Mobile Compressors, Generators, and Light Towers

Ash Air's range of Chicago Pneumatic, ALUP, Pneumatech, and Atlas Copco products are used extensively around the world in industries ranging from oil and gas to food, automotive and farming, and we bring you these world-class compressors here in the land of the long white cloud.Our technicians are compressed air equipment experts and are dedicated to addressing customer needs. Supported with nationwide coverage, Ash Air offers one of the widest selections of compressed air, vacuum pump, and industrial gas equipment and parts available today in New Zealand.

Reliability and Efficiency

With Ash Air, you can count on reliability and high performance for even the most demanding applications. We focus our efforts on the following:

  • Increasing uptime
  • Reducing unexpected repairs
  • Reducing energy consumption and meeting our sustainability goals
  • Improving the cleanliness of compressed air


Talk to the team today:  CONTACT US CONTACT US

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