As easy as it would make all of our lives, vacuum pumps are far from being “one size fits all”. Not only do you have the size to consider
when choosing a vacuum pump, but more importantly type. I will briefly touch on some of the advantages and disadvantages associated with
each vacuum technology we deal with. This should give you a better understanding of where to begin your search.
Reciprocating
Advantages(traditional, large capacity ranges, easy to install, simple design, can handle vapors and some liquids)
Disadvantages (a large number of parts subject to wear, low efficiency, high maintenance, higher noise level, higher initial cost on larger
units, oil carryover)
Rotary Screw
Advantages(long pump life, long maintenance life with lower maintenance costs over time, energy-efficient, vibration-free, virtually no oil
exhaust, air or water-cooled, complete vacuum system)
Disadvantages(large size and weight, limited operating pressure range, particulate and liquid sensitive, high initial cost)
Disadvantages(high maintenance due to vane wear, rebuild every 2-3 years or sooner, particulate sensitive, can be vapor sensitive,
discharges oil out of the exhaust, unable to handle water or liquid slugs, frequent oil changes)
Rotary Piston
Advantages(reliable, handles particulates well, long operation life, low rotational speed leading to less wear, large oil reservoirs for
contamination dilution)
Disadvantages(overheats if operating at high pressures, high vibration levels, high noise levels, large footprint)
Liquid Ring
Advantages(low maintenance, high reliability, low vibration due to one moving part, handles contaminants very well, can use various sealing
liquids, low noise levels)
Disadvantages(water consumption and disposal, low energy efficiency, discharge saturated with liquid, particles can clog inlet and
discharge, low water pressure can cause vacuum loss, subject to performance fluctuations based on water temperature)
Many of these advantages and disadvantages may already help you eliminate some choices based solely on the environment your pump will be
operating in. If water is a costly utility in your area or consistent water pressure is a concern, you may want to eliminate liquid ring
pumps from your selection choices altogether. If water is not a concern, but noise and vibration levels are, we may actually lean towards
the liquid ring as a good fit for your application.
Look at that! We’re already narrowing your search down by eliminating options simply based on the operating environment. Here are some other
questions to keep in mind when searching for the right pump for you…
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.
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.
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.
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.
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!
Reciprocating, Screw, air compressors
Vacuum pumps
Nitrogen
An extensive line of air treatment components
Ash Air's range of Chicago Pneumatic, Alup, Pneumatech, and Quincy compressors 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 by a 13 locations
nationwide, Ash Air offers one of the widest selections of compressed air equipment and parts available today in New Zealand.
Reliability and Efficiency
With Ash Air compressors, you can count on reliability and high performance for even the most demanding applications. We focus our
efforts on the following:
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.
Read More…
Say goodbye to the high cost and hassles of nitrogen bottle deliveries. Producing your own nitrogen is the smart solution. Ash Air is here to help you with your industrial gas needs.
Read More…
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