Our Services

TurnTru Machining Limited is a precision engineering workshop situated in Invercargill, Southland. For the last 34 year period we have continued to provide specialist engineering services to our loyal valued clients. Managing Director, Geoff Lamb and his engineering team provide specialist driveshaft balancing, repairs and modifications for all types of machining work including:

  • Heavy Transport
  • Agricultural Industrial
  • Commercial
  • Sawmilling
  • Mining
  • Automotive
  • Earthmoving
  • Marine
In addition, Geoff has specialist condition monitoring expertise and experience in vibration analysis of critical equipment – for fans, motors, gear boxes, pumps and other general plant and equipment

Trucks No truck too big – too small we can replace all worn components, straightening, lengthening/shortening, balancing and modifications.
4WD’s Modifications and general replacement, balancing for all types of 4WD’s.
Performance Heavy duty and high horsepower performance vehicles, we supply complete driveshafts or components, modifications and balancing.
Marine Driveshafts for all types of marine applications from family jet boats to high performance race boats.

Heavy duty high quality driveshafts and repairs for all your industrial requirements.

Mining Routine overhaul of driveshaft components including balancing and crack testing for all mining equipment.


Need a specific customisation to suit your commercial operations?  TurnTru Machining Ltd can design, customise and manufacture to suit all your commercial needs.

Agricultural General repairs and replacement of components for all your agricultural requirements.