Products & Services

NDA Engineering specialises in the mechanical design and manufacture of stainless steel tanks and equipment for the food, dairy, brewing, pharmaceutical and chemical industries. NDA has extensive experience across a broad range of equipment, professionally manufactured to exacting standards in one of several dedicated stainless steel workshops.



We have a wide range of expertise in the design and manufacture of liquid and powder storage tanks including:

  • Raw milk storage silos with a capacity of up to 500m3
  • Cream silos (with cooling pad and insulation)
  • Fermenters and bright beer tanks for the brewing industry
  • Wine tanks up to 160 kl in capacity, with dimple pad or channel cooling
  • Powder bins and silos (explosion rated)

We’ve got strong experience in the design and manufacture of liquid transport tankers and trailers including:

  • Milk transport truck and trailer units with a GVM of up to 55 tonnes
  • Chemical tanker B-Train units – Class 8
  • Milk transport rail tankers carrying up to 52,000 litres
  • Water tankers – rigid truck and/or 4-axle trailer units

We specialise in the design and manufacture of specialised stainless equipment including manufacture of third party designed equipment:

  • Milk evaporators
  • Spray dryers
  • Brine concentrators
  • Pressure vessels to ASME XIII and AS1210



To meet your own particular specifications, we offer full in-house mechanical design and drafting services. Using design software, including COMPRESS, and our own specially developed design models we can design pressure vessels and heat exchangers in compliance with current design codes including AS1210, ASME VIII, and TEMA, and storage tanks to API650, API620 and AS1692.

To ensure we get your design right, we use a wide range of professional design software. We create conceptual 3D models in SolidWorks, which are turned into fully detailed fabrication drawings for manufacture. Depending on your engineering project, we may also use AutoCAD or Autodesk Inventor. We can also offer Finite Element Analysis (FEA).


With dedicated stainless steel fabrication facilities located in Hamilton and Invercargill, NDA are well positioned to service your manufacturing requirements right across the country.

A total of some 17,500m3 of workshop area and fabrication capacity in excess of 200,000 labour hours per year ensures we have the flexibility to deliver on our commitments. All workshops have overhead gantry cranes with maximum lifting capacity of up to 60 tonnes and both our Hamilton and Invercargill facilities have specialised high bay facilities with a maximum 20 metres under the hook.