Winstone Aggregates is a key supplier to New Zealand’s construction and infrastructure sectors, operating an extensive network of quarries, clean fills, laboratories, and bulk transport operations across the country. At their Hunua Quarry, Winstone required a wash solution to support PAP (Premium Asphalt Product) processing.
MIMICO Engineering was tasked with delivering a complete wash plant installation featuring a Superior Industries 36” Aggredry fine material washer. This solution enables Winstone to produce a cleaner, drier product while improving handling and consistency in downstream operations.
To maximise production flexibility, MIMICO also modified the existing load out bins, retrofitting the bin outlets to accept new belt feeders. This allows the site team to control the blend ratio of washed versus unwashed PAP in the final product, ensuring quality control across different customer requirements.
The full plant installation included new MIMICO Engineering-designed structures, conveyors, belt feeders, and a load out hopper with integrated roof, providing safe, efficient material handling and all-weather protection.
Project Highlights:
Superior Industries 36” Aggredry fine material washer installed
New MIMICO Engineering structures, conveyors, and belt feeders supplied
Existing load out bins modified for blending control
Load out hopper installed with roof for weather protection
Through careful integration of new and existing equipment, MIMICO Engineering delivered a tailored wash plant solution that enhances Winstone Aggregates’ production capabilities at Hunua Quarry.
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