A Landmark Quarry in New Zealand
Drury Quarry, operated by Stevenson Aggregates, is one of the largest and most advanced quarries in New Zealand. It ranks among the biggest producers of aggregate in Auckland, supplying over a quarter of the region’s needs.
The site also serves customers in Waikato and produces more than three million tonnes of aggregate each year when markets are strong. As a result, Drury Quarry has become a cornerstone of New Zealand’s construction and infrastructure supply chain.
The Challenge
With such a high production output, Drury Quarry faces heavy traffic volumes. During peak times, more than 600 trucks leave the site each day. This creates an ongoing challenge: managing dirt and debris carried from the quarry onto public roads.
Stevenson Aggregates needed a practical, durable, and efficient solution. It had to handle continuous demand while keeping operations smooth and compliant.
The Rocktec Warrior Wheel Wash Solution
In 2005, Stevenson Aggregates installed its first Rocktec Warrior Wheel Wash at Drury Quarry. This fully automatic system was designed to support the needs of quarries and industrial sites across New Zealand.
System Features:
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4 metre wash length for complete vehicle coverage.
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84 high-pressure jets arranged to clean tyres and underbodies.
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Automated drive-through operation triggered by electronic sensors.
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Adaptability to handle all types of road-going vehicles.
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Side screens to contain overspray.
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Adjustable side spray bars for different vehicle profiles.
A History of Rocktec at Drury Quarry
The Warrior Wheel Wash is only one example of Rocktec’s work at this site. Over the years, Rocktec has also designed and installed a custom quarry processing plant. In addition, the team built a tertiary crushing plant on-site.
Each project was engineered to handle the scale and complexity of Drury Quarry. Together, these solutions show the depth of Rocktec’s partnership with Stevenson Aggregates. They also highlight Rocktec’s ability to deliver reliable, long-term results.
Long-Standing Results
Since its installation, the Warrior Wheel Wash has proven its value in daily operations. It helps reduce quarry debris carried onto nearby roads. Furthermore, it supports cleaner transport routes and improves efficiency for trucks moving in and out of the site.
For Stevenson Aggregates, the system has shown the reliability and durability that Rocktec is known for. As a result, the Warrior Wheel Wash continues to serve as a practical solution for one of New Zealand’s busiest quarry environments.
A Proven Example of Rocktec Engineering
The Drury Quarry project demonstrates how Rocktec’s engineered solutions deliver long-term value to New Zealand’s extractive industries. With systems like the Warrior Wheel Wash, Rocktec supports cleaner operations, safer transport, and improved efficiency at demanding sites.