The GLT rollback is an ideal choice for operators wanting the lightest weight lead unit available. Traditionally these units are lighter than sliders due to the smaller size of trailer. A standard grain spec rollback 24’ will tare in at 6.6 tonnes.

Rollbacks are commonly used in B-Double, B-Triple and AB-Triple applications due to their ability to achieve a shorter pin-to-axle spacing. A single hydraulic cylinder is used to roll the body back on the chassis towards the rear axle. Your prime mover will need to be equipped with supply and return hydraulics.

All nuts, bolts and washers are stainless steel. Grain scrapers, shovels, brooms and grain chutes are equipped as standard. Every trailer is professionally detailed before it is delivered to the customer.

All GLT trailers are laser wheel aligned prior to delivery. GLT chassis tippers are available in tandem, tri or quad axle configurations. We have a large range of options to customise your new chassis tipper. See below for some of our most popular options.

Technical specs

Tandem axle

Length:21’4″ to 27’11”
Height:4′ to 8’6″
Capacity:19 to 54 cubic metres
Tare Weight:5.4 to 6.4 tonnes

Tri axle

Length:27’11” to 32’10”
Height:4′ to 8’6″
Capacity:25 to 63 cubic metres
Tare Weight:6.1 to 7.4 tonnes

All GLT aluminium bodies are fabricated from European-sourced marine-grade aluminium plates. Floor and wall sheet thicknesses can be customised to suit the application.

Each body is built on our exclusive extruded aluminium floor beams. The beams are specifically cambered to suit the body length. The process of welding the floor sheet to the beams and cambering the beams all happens simultaneously.
Top coamings are also an exclusive aluminium extrusion. These specialised extrusions increase the tub body strength while maintaining exceptional tare weight. All top coamings are either huck riveted or bolted with stainless steel bolts. This method of construction allows the coaming to flex and reduces the risk of cracking.
All trailers with a king pin position less then 900mm come standard with a Jost body lock. GLT bodies are designed to have the hoist feet mounted directly above the king pin to increase strength and stability while tipping. Bodies with upright hoists need the body lock to help hold the body in position while traveling.
Fronius machines are used to create superior welds on all aluminium sections.

Body type options include

Straight Body – This standard body type is a strong, cost effective and a light weight option. Choose from two body widths: Narrow – 2,330mm or Wide (standard) – 2,480mm.

Side wall options include

Plate – 4mm to 12mm thickness. Choose from either mill finish, mill bright (polished), painted or vinyl.

Standard Lower Curve – The GLT lower curve is an exclusive extrusion. The side sheet and floor sheet slot into the extrusion before they are hand welded into place.

Pressed Sides – GLT can remove the lower curve and press the side sheet to meet the floor sheet. This will reduce the tare weight by around 70kg. It also increases the strength of the tubs making it an ideal option for carrying liquid based goods.

Plank – GLT custom extruded planks. These are ideal for maximum height bodies as they reduce the amount of side wall bulge. This option will increase the trailer tare weight by around 80kg depending on length and height.

Front sheet options include

Standard Flat Front Sheet – This is our standard front sheet which is 5mm thick with a polished finish. Other thicknesses and finishes are available.

Rounded Front Sheet – This option is ideal for carrying liquid based products. The front sheet is specially rolled before being welded into the place. As liquids move forward when decelerating, the shape of the front sheet reduces the liquid’s impact. We recommend a thickness of 6mm to add stiffness to the front sheet which reduces fatigue.


All our chassis are fabricated from 700 grade mechanical steel with quenched and tempered skid plates. Minor amounts of 350 and 250 grade steel are used for small profile gussets.

Each chassis is 3D modelled and laser cut. Our steel fabrication team are highly skilled qualified tradesmen. Miller digital pulse welders are used to lay a clean weld. All edges on flanges are sanded and polished to reduce the chances of cracking and to help the paint adhere to the steel.

The top cradle moves on steel rollers which have a graphite infused nylon bearing for reduced maintenance.

Our pivots use a superior through design which greatly increases the strength of the pivot area. A 50mm pivot pin is slotted through a welded connection, making it exceptional strong.

GLT chassis are optimised for Hendrickson Intraax airbag suspension and axles. Other brands such as BPW, SAF and K-Hitch can be optioned. Subtle design changes are made to the chassis to accommodate these different suspension brands ride characteristics.


GLT trailers are designed to handle the harsh Australian conditions. The correct suspension and axle selection is one of the most important factors in the trailers’ ability to survive our unique roads.

GLT chassis are optimised for Hendrickson INTRAAX air bag suspension and Hendrickson axles. Other brands such as BPW, SAF and K-Hitch can also be equipped if requested. GLT is an authorised Hendrickson dealer which allows us to offer greater after-sales support.

Air bag suspension offers better ride quality, low tare weight and simplified ways of reading load weights. The prefered brands which we supply have passed our field testing protocol and have excellent after sales support. All trailers with air bag suspension are equipped with ball valve taps to isolate individual bags. These taps will allow you to shut off an air bag if it has an issue.

Mechanical spring suspension can be fitted to most GLT trailers. K-Hitch KHDO/KHU and FW88 are our preferred suspension models.


Choose from a range of custom trailer solutions

Tarp solutions

Create your next trailer with us

Contact our team to discuss your customised trailer requirements to receive tailored advice and a quote.