We partner with a range of market-leading brands, working closely with our suppliers to develop machinery tailored to the demands of New Zealand farmers, ag-contractors, and civil contractors.
Brownrigg Agri Gear specialises in the sale and service of high-quality agricultural trailers, tankers, and slurry spreading equipment—designed to efficiently transport and spread silage, aggregates, and effluent across a wide range of applications.
Our trusted brands include Donnelly, SlurryKat, and Tyrone Trailers. The Donnelly range features versatile 3-in-1 trailers built for NZ conditions, with heavy-duty flatbed tipping trailers that can be adapted with silage bins or dirt sides, available from 14–20 tonnes. SlurryKat offers advanced slurry solutions, including umbilical systems, dribble bars, and premium slurry tankers, alongside durable silage, grain, and construction trailers ranging from 10–30 tonnes. Tyrone Trailers specialise in low loaders and bale or flat-bed trailers, with customisable options to suit both agricultural and construction needs, ranging from 19–33 tonnes.
All equipment is manufactured using high-quality components, ensuring durability, reliability, and performance you can depend on season after season.
Explore our new machinery range below.

SlurryKat is the market leader in the design and manufacture of slurry spreading equipment for the farmer...

Trailers completely Manufactured and built specifically for agriculture, you can’t go past our range of quality trailers...

Specialises in the manufacture of high-quality low-loader trailers for the agricultural and construction industries...

"The Bullet” is designed to cover dump bodies up to 23 feet long...