Newsletter Spring 2012

September 2012

Mainstream Engineering Spring 2012 announcement

Mainstream Engineering Ltd is proud to announce that Air Systems Engineering Limited (ASEL) is now part of Mainstream Engineering and will be operating as
a division of Mainstream Engineering Ltd (MEL).

ASEL (formerly owned and operated by David Mills) is a design and build organisation supplying industrial air systems for over 34 years. ASEL’s speciality focuses on the development and supply of solutions for air handling requirements.  We have an extensive range of proven in-house designs of industrial fans, cyclones/separators, flow measurement and controls with many installations in operation throughout New Zealand.  ASEL is a company committed to professionalism and competitiveness in its operations and has a strong reputation earned for delivering a quality service and product. David Mills is continuing his work in ASEL by joining the Mainstream team providing technical support and specialist assistance.

The acquisition of ASEL by Mainstream Engineering is a commitment to continue supplying quality engineering services and building additional capability to provide an
innovative and competitive alternative to industrial or commercial mechanical engineering requirements.  Together with MEL’s proven mechanical design and project management capability, we are now equipped to offer comprehensive, quality Air System Engineering solutions from concept to installation.

David Mills - I am delighted to pass the baton of ASEL to Mainstream and Darrin and Dianne.  It has taken more than eighteen months to get to this stage mainly because of my health issues.  During this time I have gotten to know Darrin and Dianne to the point that I believe that they are the ideal people to accept the baton.  I am very comfortable that Darrin becomes the new front for ASEL.  My intention is to continue working in the background training and supporting Darrin and the team whenever required.  This arrangement will ensure a seamless transition for existing clients and my request is that my clients support Darrin and Dianne as you have supported me.

Mainstream have all the ASEL working drawings and design files dating back to 1978 so clients can be assured of ongoing service. 

The amalgamation of the two businesses has also been marked with the issuing of two new logos signalling the start of an exciting new progressive era in both businesses.

ASEL will be relocating to MEL’s premises in Kawerau and can now be contacted on the following addresses and phone numbers:



Office:   Level 2, 99 Manukorihi Drive, Kawerau,  3127, New Zealand
Postal:   PO Box 106, Kawerau, 3127,
New Zealand 



+64 7 323 9003


Engineering:      +64 27 291 1093
Administration:  +64 27 671 1869


In the eight months up to the end of August, Mainstream Engineering completed over 17,500 hours on clients projects, providing Project and Maintenance Engineering, Mechanical Design and Draughting, Scheduling, Health and Safety Supervision and Business Services.  We are now also supplying services into Australia and with ASEL
we can provide additional technical capability to support their demand for engineering services.


Keep an eye out for our annual Christmas/New Year news letter where we will update you on recent developments and achievements:


  • Customer success stories
  • CFD (Computerised Fluid Dynamics) capability
  • Additional mechanical and process measurement and data logging capabilities
  • New staff
  • New products and services

Until then stay safe and we hope to see or contact you in the coming months.

The Mainstream Team