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Rebuilding for the Future
How OceanaGold Brought Their Cat® 789C Trucks Back to Life with Cat Reman
OceanaGold has been running the Macraes Operation on the South Island of New Zealand since 1990. The operation consists of a large-scale surface mine, an underground mine and an adjacent process plant, across which 300 employees work to support the company’s annual gold production.
A mine of this scale needs dependable support to prioritize uptime and productivity. For the duration of their time at Macraes, OceanaGold has relied on support from their dealer, Terra Cat®—and that support goes beyond new machine purchases and simple repairs. Recently, it meant helping OceanaGold give new life to three 789C mining trucks that had been out of service since 2015.
Each 789C had accumulated 65,000 to 70,000 frame hours before being idled, after which most of their parts and components were removed to keep the rest of the fleet productive. Still, Macraes Open Pit Manager Pieter Doelman recalls thinking, “we've got these 789Cs with the 1900 horsepower engine, which are essentially structurally OK. But for the want of a bit more power, can we modify them?”
Terra Cat recommended rebuilding them with 2,100-horsepower Cat Reman engines, providing them with the same power as the newer 789D models. They also utilized Cat Reman parts for the engines, torque converters, differentials, and other essential components.
“One of the key advantages of any Caterpillar product in the mining range is its rebuild-ability. They can get the productivity out of that machine and get it back to like new performance again. And we can do that multiple times, with different levels of rebuild [options] to suit their needs,” explains Terra Cat’s David Baillie.
For OceanaGold, putting equipment back to work while remaining environmentally responsible was a top priority. By opting to rebuild with Cat Reman parts, they were able to:
- Reduce waste by reusing core components instead of scrapping or replacing entire machines.
- Save time and money with a quicker turnaround compared to buying and shipping new trucks to New Zealand.
- Meet sustainability goals by extending the life of their existing fleet rather than increasing their carbon footprint through new manufacturing and transportation.
"One of the key advantages of any Caterpillar product in the mining range is its rebuild-ability."
With the help of Terra Cat and Cat Reman, OceanaGold got these trucks back on the job. James Glover, a diesel footer at OceanaGold, gives his stamp of approval saying the trucks are “serving the test of time, with the newest one being on 2,000 hours so far and having no issues."
