What is the difference between Wet vs. Dry Vacuum Pumps?

Wet vs. Dry Vacuum Pumps

There are two types of vacuum pumps: the ‘wet’ kind, which is essentially a hydraulic pump, and the pneumatic, ‘dry’ variety.



Browse our range of Atlas Copco Vacuum Pumps here

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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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Fixed Speed Dry Claw Vacuum Pumps VSD+ Dry Claw Vacuum Pumps
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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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Atlas Copco Liquid Ring Pumps Pompetravaini liquid ring pumps 
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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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Dry Rotary Vane Pumps Oil-Sealed Rotary Vane Pumps
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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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Dry Screw Vacuum Pumps Oil Sealed Screw Vacuum Pumps
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Blowers

We have a great range of new and hire blowers from single stage ring blower through to large lobe blowers, and we also stock the service parts for common blowers across many brands.

Our roots blowers, side channel blowers are built to last, and are backed up by our promise of excellent customer service to keep your business performing well day in and day out.

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Roots Blowers Side Channel Blowers
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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

Read more from our #expertcorner


Just like any other equipment, a compressed air installation also requires the necessary maintenance work during its entire lifespan. Even though maintenance costs are only about 5 to 10% of a machine's annual operating costs, failure to budget for maintenance can have potentially disastrous consequences. …


The air dyer is one of the most ignored cooler in the system. A dirty condenser will cause water in the lines, or worse it will cause complete dryer failure. …


Using nitrogen is not about fully replacing CO2, but it can reduce their consumption of CO2 by close to 70%. Using nitrogen is about sustainability. Creating your own nitrogen is easy and will reduce the use of a greenhouse gas, which is better for the environment. It will also save you money as early as month one adding that savings to your bottom line. …


A question that is occasionally asked by our customers to Ash Air is 'what is the cost of compressed air?'  This article looks at the product costs involved with compressed air, as well as minimising the energy cost of compressors and cost allocation. When looking at these factors, we need to realise what causes dropped efficiency of your compressor, leading to increased costs of compressed air. …


You may have great fall protection measures in place to keep employees safe when working at height, but what about their co-workers below? Dropped tools and other falling objects are a major hazard – and one that isn’t always fully addressed.  …


Providing a safe working environment for operators is essential, especially when using pneumatic tools and compressed air. If there is a failure in the air network and the hose is not adequately clamped, the resulting whiplash could be devastating. Failure to follow best practice can result in injuries, associated production downtime and decreased productivity. …


A common questions asked is why do I need an air dryer for my compressor? Typically, air compressors produce water, and although the water can be drained, there can still be aerosol and vapour droplets that are present. This is because water cannoet be compressed. Water can damage your compressor by corroding the valves, pipes and machinery controls, which will cost you time and money to resolve. In the long run, the cost of a new compressor is a small price to pay compared to the loss of production that could potentially arise due to water damage in your compressor.





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Air compressors can fail for an assortment of different reasons: Normal wear and tear, lifespan and age of the unit, poor maintenance, power surge, install issues are just a few the come to mind. Check out this blog to find out our top 7 tips to ensure your compressor is looked after!  …


That cold, rainy, and in some places icey New Zealand winter is upon us, and with the following air compressor tips, your air system will be prepared with the preferred temperatures, despite the weather outside. Regardless of whether or not it actually snows or freezes up where you live, most winterisation service recommendations are also basic, solid maintenance procedures that will help extend the life and operational efficiencies of air compressors regardless of whether you live in Queenstown or Northland. …


If you're wondering what an air compressor actually is, you've come to the right place. Simply, air compressors convert power in to air that is pressurised which is then used to power air tools such as spray guns. Air compressors are used in a wide range of applications, so naturally if you want one that will be designed for spray painting your vehicle, you want a compressor specifically made for spray guns! This way your compressor will be able to provide the right amount of power to perform the job. …


Compressed air plays a fundamental role in industrial activities. Depending on the type of application, the energy cost of producing compressed air can be very high. Below are some tips to save on you compressor bill. …


Air Compressors are essential tools in a variety of industrial settings. No matter what industry you are in having a reliable air compressor can be a crucial part of getting the job done efficiently. However, like an investment, air compressors require upkeep and maintenance, and eventually will need to be upgraded. But how do you know when it’s time to upgrade your air compressor? Here are some things you need to consider. …


When it comes to laser cutting and other industrial processes, the choice of assist gas is crucial in achieving optimal results. Nitrogen and oxygen are commonly utilized as assist gases, each with its own unique properties and applications. Understanding the characteristics of both gases, will help you to make an informed decision to ensure precision, efficiency, and cost-effectiveness in your operations. …


Mobile air compressors are portable, towable compressors particularly useful for applications that suit the construction and roading industry! You'll often see a mobile compressor being used for sandblasting, irrigation blow-outs, and for quarrying tools such as pneumatic block cutters and rock drills.   …


Did you know that Chicago Pneumatic helped man land on the moon? Notice in this photo of the Apollo 11 landing what appear to be "soccer balls" on top of the capsule. They were inflated through a compressor specially developed by Chicago Pneumatic for NASA. …


Your company purchased an air dryer for your compressor, now where should you install it? One of the most common things we see in the industry are air dryers being stored on top of the compressors. Seems like a wasted space not being used on top of the compressor, right? Wrong. …


When using air compressors, there are many variables that are integral to the quality and effectiveness of your compressed air. When dryer air is necessary, being able to constantly and accurately monitor dew points can be a critical factor to your operation. …


Compressed air plays an integral role in breweries both large and small around the world. From start to finish, all details in the brewing process are managed in fine detail and having the right air compressor is no exception. …


We Kiwi's love our Coffee! Coffee, like all other food & beverage products, must go through a preservation process to keep the beans fresh during storage and packaging before they reach the consumer. Coffee that is not properly stored after it is roasted will lose a large amount of carbon dioxide, which lessens its' flavor and speeds up the staling process. One of the most common ways to preserve the freshness of coffee is the use of nitrogen gas. Learn more here: …


Air compressors are helpful for an enormous range of applications such as air filling, packaging, tools, HVAC control, and more! One possible drawback is the amount of electricity they use; air compressors can be a huge drain on energy if used ​inefficiency...  …


We get it, buying an air compressor is a big financial decision. And now we are suggesting that you need two air compressors, not just one. Ask yourself one question- Can your business still run if your air compressor goes down? …


It’s no secret – air compressors are excellent sources of energy. Not only do they power essential manufacturing elements and applications, but the heat generated as a result of the compressed air processes can be used as a byproduct that offsets other energy costs. However, there’s another form of energy that is also a consequence of the air compression process – sound. …


The emergency stop, "e-stop", is for true emergency situations only. When hitting the e-stop, all power is halted from the machine and the unload process isn't achieved. The emergency stop button is intended to help with possibly hazardous situations that are developing. Common conditions of having to use the e-stop is the misuse of the equipment in ways that weren’t intended, predictable failures not addressed or failing to consider all the foreseeable uses of the compressor.
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We've put together a list of tips for working safely with air compressors in your environment! We recommend that you always read owners manual before running your compressor. The number one cause for repairs and personal injury is improper use. You've got to remember to use eye protection and hearing protection when operating your air compressor and try to avoid using air compressors in a wet area.  …


Air Compressor Installation Tips Installing Your Reliable Air Compressor

So, you've just bought an efficient and reliable ALUP air compressor? Welcome to the world of compressed air. As your partners in compressed air, we will continue to assist you along your journey. We have provided air compressor installation tips to ensure you get the most out of your air compressor.  …

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