Reviving a Critical Compressed Air System for a Blasting Contractor in Porirua


The Ash Air team, known for their expertise in servicing and maintaining industrial equipment, recently encountered a new challenge at a major customer site in Porirua. Despite having successfully serviced the customer's Seaview Wellington site previously, this was the first time they had to address issues with the compressed air system at the Porirua location.

Product range:   ALUP Allegro 90 Rotary Screw Compressor, Pneumatech AD750 Air Dryer 5000-liter Receiver,, EControl 6 Central Controller

The issue:  A failed Variable Speed Drive (VSD) in one of the rotary screw compressors at the customer's Porirua site, which couldn't be resolved by the previous account holder or the site's electrician.

Technology:  This included a Variable Speed Drive (VSD) for the rotary screw compressors, an upgrade kit formulated by the Ash Air Technical Support Manager, and an EControl 6 central controller for managing the compressed air system.

Business type:  Blasting

Location: Porirua, Lower North Island, New Zealand

Contact our team about Nitrogen Generation for your business today! Contact our team about Nitrogen Generation for your business today!


The customer contacted Ash Air regarding a critical issue with their rotary screw compressors at the Porirua site. Specifically, the Variable Speed Drive (VSD) in one of the compressors had failed, and the previous account holder was unable to find a replacement VSD drive. Even the site's capable electrician couldn't resolve the issue, as they couldn't find a compatible replacement drive that could communicate with the controller.

The solution:

 Our Regional Manager, took charge of gathering essential information about the problem. The Ash Air Technical Support Manager, then formulated an effective solution. They put together an upgrade kit and connected the customer with a trained and qualified electrician who could successfully install the new drive and ensure compatibility with the controller.

The Results:

The Ash Air team's quick and thorough response, coupled with the successful repair of the failed VSD, impressed the customer. As a result, the customer awarded Ash Air with the service of their two existing compressors. Additionally, they placed an order for an ALUP Allegro 90 rotary screw compressor, a Pneumatech AD750 air dryer, a 5000-liter receiver, and an EControl 6 central controller. 

Overall, this successful project not only resolved a critical issue for the customer but also resulted in significant new business for Ash Air. The collaboration and expertise of the team members  played a crucial role in achieving this positive outcome.

Creating exceptional partnerships throughout New Zealand with innovative technologies

 ECOntrol6 gives you a well-managed compressed air system that decreases downtime and maintenance, while increasing production and most importantly, lowering your energy costs. 

Watch the educational video to learn more about ECOntrol 6 and its function - discover better overall network performance that helps you minimize energy costs.


Discover the benefits

Optimsiation services: 

Products of Choice for this project

Pneumatech Compressed Refrigerated Air Dryers

 Ash Air has a range of quality cycling and non-cycling Pneumatech refrigerated dryers for your air compressors.Our non-cycling Pneumatech refrigerated dryers offer a reliable and economic solution for removing moisture from your compressed air system. These refrigerated dryers for air compressors are easy to install, offer energy savings, prevent pressure losses, are equipped with rotary compressors and R410A refrigerant, and have improved connectivity features.

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Pneumatech AC Series - Cycling Dryers

Pneumatech AC Series - Cycling Dryers

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Super efficient ALUP rotary screw compressors

We're proud to offer ALUP rotary screw compressors.  Our assortment of screw air compressors encompasses fixed speed, variable speed, and our highly efficient Evoluto model. Our rotary screw air compressors cater to a broad spectrum of requirements.

If you are in search of top-quality screw compressors, ALUP stands as the ideal air compressor company for you. Explore the diverse range of rotary compressors on this page or reach out to us today for assistance in selecting the optimal screw compressor for your operations.

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Central Controllers - eControl6

Synchronize the operation of your compressor room's multiple installations with our smart eControl6

ECOntrol central controller system allows to efficiently control and monitor up to six different compressors. It will not only increase the performance of the compressed air network, but optimize energy by matching the air supply to your needs. You can obtain important energy and cost savings through intelligent unload cycles, as well as a decrease of the pressure band, which will result in reducing energy and leakages.

Browse ECOntrol Central Controllers Browse ECOntrol Central Controllers

About Ash Air: 

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, rotary screw air compressors
  • Vacuum pumps and blowers
  • Nitrogen Generation
  • An extensive line of air treatment components

Our technicians are compressed air equipment experts and are dedicated to addressing customer needs.  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:

  • Increasing uptime
  • Reducing unexpected repairs
  • Reducing energy consumption
  • Improving the cleanliness of compressed air

Ash Air's range of Chicago Pneumatic, Alup air compressors, Pneumatech industrial gases and Atlas Copco vacuum pumps are used extensively around the world in industries ranging from oil and gas to food, automotive and farming.