Your Process Partner

With over three decades’ experience in New Zealand’s processing industry, Rendertech helps businesses optimise their plant efficiency and throughput with specialist engineering advice and design. We will ensure a higher yield and a higher quality product, while reducing your energy use and environmental impact for greater compliance and return on investment.

Our technical team provide design, manufacturing, installation and customer support for rendering plants, wastewater treatment, odour control and storage solutions. We have designed and manufactured some of the largest rendering plants in the Pacific Rim, and we support established plants on a day-to-day basis. In addition to new builds and retrofits, we provide one-off machine replacements, technical support and process audits.

A cleaner environment
Environmental performance standards are getting tougher. We can help reduce odour from existing plants, and design new plants with a very low environment impact.

Made in New Zealand
We design and manufacture most of our equipment in New Zealand for greater control over quality, safety and timeframes.

International markets    
We supply and service in New Zealand, Australia, South East Asia, the Pacific, the USA and South America.

Low-temperature rendering

Rendertech's co-founder Steve Dunn was part of the design team who developed the first low-temperature rendering plants in New Zealand. This technology virtually halves the energy used by traditional high-temperature plants, improves the quality of the output, and significantly reduces odour. Today, we are Australasia's only low-temperature rendering specialists. 


  • Standard design to 25 tonne/hr raw material.     
  • Larger plants through customised design.  
  • Higher yield.  
  • Higher quality end product.  
  • Lowered energy use.  
  • Reduced environmental impact.  

Meet the Team

Greg Adams


+64 27 499 3660

Steve Dunn

Sales & Technical Director

+64 21 372 954

James Richardson

General Manager

+64 27 572 9973

Tony Motu

Contracts Manager

+64 21 512 769

Mike Webb

Design Manager

+64 9 634 5375

Elaine Hassan

Office Administrator

+64 9 634 5375

Tim Auld

Process Engineer

+64 21 0812 7045

Hamish Olsen-Ross

Project Engineer

+64 21 530 441

Michael Czarny

Project Engineer

+64 27 320 6726

Edmund De Alwis

Design Engineer

+64 9 634 5375

Ian Ramos de Oliveira

Design Engineer

+64 9 634 5375

Mike Coomer

Design Draftsman

+64 9 634 5375