TRT Develops a First-of-Its-Kind Mini Quad Trailer
OVERVIEW
TRT worked with Chris Robinson to create a first-of-its-kind mini quad trailer for Robinson Heavy Haulage.
The trailer combines mechanical steering, compact road-going dimensions and heavy haulage capability for demanding Australian transport work.
SITUATION
Chris Robinson bought his first TRT trailer in 2013.
Since then, his earthmoving work has grown into Robinson Heavy Haulage, with transport needs shaped by major infrastructure projects in northern New South Wales.
The Coffs City Highway Bypass created more varied and intensive haulage requirements.
Chris needed a trailer that could handle different loads while staying practical on tight job sites.
CHALLENGE
The trailer needed to be compact enough for complex sites and strong enough for heavy, mixed transport work.
It had to carry equipment such as rollers, containers, boom sections and diggers.
Steering was a key challenge.
The solution needed to move forward and reverse with better control than a castoring axle setup.
SOLUTION
TRT developed a new 4x4 mini quad trailer around Chris Robinson’s operating needs.
The steering system uses a skid plate, wedge plate, double bull race and mechanical linkage system.
This setup transfers steering movement through the trailer to the quad axle set.
Jeremy Carden has explained that the system gives the trailer controlled steering in both forward and reverse.
The design also allowed TRT to retain its long beavertail and use single-fold ramps.
This supports a better loading angle without adding the weight of heavier ramp systems.
The trailer includes top deck access ramps, an auto-tensioning ramp system, heavy-duty conveyor belt rubber and multiple load restraint options.
It also includes a removable headboard, LED work lights, toolboxes, electronic lift and lower legs, alloy rims and Michelin tyres.
MADE POSSIBLE:
Robinson Heavy Haulage now has a compact mini quad trailer built for varied heavy haulage work.
The trailer has a forward distance under 9.5 metres, a 51 tonne aggregate trailer mass and a 36 tonne Group Axle Mass Rating.
It is suitable for 30 to 35 tonne single-piece loads and divisible payloads up to 27 tonnes.
The steering system provides up to 26 degrees of steering at axle four.
That gives operators more control than standard castoring axles, which are limited to 12 degrees.
Jeremy Carden has pointed to tyre life as another practical gain.
Chris uses Michelin XTE2 tyres and expects 60,000 to 70,000 kilometres from them, compared with 20,000 kilometres on many heavily used quads.
TRT showcased the trailer at its Brisbane facility during Truck Week 2025.
The event gave operators a closer look at the mini quad, alongside other TRT trailer and crane solutions.
