Both our ranges of monocoque trailers are available with silage sides. The QM range is available with silage attachment style sides are quicker to switch between silage and cereal set-ups. In 2014 we introduced our new silage attachment style sides that provide increased strength and rigidity thanks to the specially designed internal plate. The improvements do not stop there as the visual appearance of the sides have been modernized.

Our QM range has 4' high sides to minimize the distance crops have to fall during loading. When specified with 560/60x22.5 wheels and a full width front window, our QM range is ideal for rootcrop work whereas our QM00 range is intended more for Cereals.

The floors of the entire range are 5mm thick and the sides are either 3.5mm or 4mm thick, ensuring an extended service life. Every model also benefits from a fully-welded construction with a substantial number of floor and side bearers to improve overall rigidity and strength. The sides of the trailer are also welded on one of our robotic welders to provide an incredible level of finish that cannot be matched by hand-welding.

The QM/11 model upwards uses a unique chassis design that is formed from heavy-duty channels with 8mm or 10mm reinforcing plates stitch welded to the channels. This set-up provides unrivaled strength, while also allowing the chassis to flex when required; if the chassis is too rigid then it can become prone to cracking and premature failure. Almost the entire chassis is now welded on a robot, ensuring perfect welds every time and adding to the overall chassis durability. The chassis design on the QM/16 and QM/1800 models are also further reinforced by an internal lattice work of steel plates, providing a tidy finish combined with the necessary strength.

The tipping points of our QM/6 and QM/8 models use a toughened 24mm bolt and on our QM/11 model upwards, a fully bushed 50mm solid steel bar is used to eliminate any potential weak link in the design. Similarly our QM/11 model upwards also benefit from using a single chrome tipping ram, which had a faster cycle time than traditional twin ram designs increasing efficiency.

Available on all our tandem axle QM models as a no-cost option and available on our QM/6 single axle model as a priced option. Our QM/8, QM/11, QM/12 and QM/1200 models us multi-leaf springs to keep the trailer height down for improved stability, while still providing excellent road performance. On our QM/14 model upwards mono-leaf springs are utilized to handle the increased weights.

Every model in the QM range has hydraulic brakes as standard with the option for air brakes with load sensing or a full ABS system. There is also the option for hydraulic load sensing. Our QM/11, QM/12 & QM/1200 models use 8 stud 350 x 90 axles, with the option to upgrade to commercial axles for high-speed road work. Commercial 10 stud 420 x 180 axles are standard on our QM/14 model upwards; these are the same size of axles that are used on HGVs and provide exceptional braking and high-speed performance.

LED Lights are standard on all models in the QM range, but there are also various lighting options including; high-level LEDs, LED beacons and dual lights. All lights are recessed into the back-rail of the trailer or are fully guarded.

The whole QM range comes with an inspection ladder as standard, which is fabricated from chequered plate and precision welded by our robot welders before being treated with a galvanized finish.

The QM range hydraulic door arms are formed from pressed steel plates to create a sleek and strong design. In addition the arms are now 150mm longer to provide increased clearance when discharging the load, this is particularly useful when tipping silage or maize. The hydraulic door option is standard on the QM/8 model upwards and optional on our other models.

This intelligent design has resulted in our new drawbars being incredibly strong, while also creating a modern, sleek looking finish. This is only possible due to the advanced fabrication equipment we use; two 8mm plates are folded together by our CNC presses and overlapped before our robotic welders complete the process by welding the parts together.

The simple idea of this new design approach and concept is to allow 80% of our optional extras to be retrofitted to our product ranges without the need for any fabrication or paint rectification. The QM range is naturally designed around this idea and the benefits are huge! It allows us as manufacturers to stock basic trailers that can be adapted to meet customer demands for improved delivery, it allows dealers to supply the correct specification of trailer to customers faster and for the farmer to add to the trailers' functionality and extend its lifespan. The best example of this is the ability to add air brakes to the QM range, so if a tractor is upgraded to air brakes the trailer can be made to match without the need to change the entire trailer!

The introduction of robotic welders to our production line gives the Marshall QM range a unique and unrivalled level of finish and consistency. The chassis, drawbar, ram anchors and sides are all welded robotically; taking the quality far beyond what a man can achieve. This production and design method will continue to be integrated into our ranges throughout the coming years.

Since November 2011 we have shot-blasted, this is acknowledged in the paint industry as the best possible method for preparing steel for painting. The shot-blasting creates a profile for the paint to adhere to, improving adhesion and in turn the protection offered to the steel. Our five man team of trained sprayers then use the latest spraying equipment to finish our products with a dual layer paint finish.

Every machine is finished our latest Two-Pack-Paint and Undercoat, this is recognized as one of the best ways to paint an agricultural machine in the industry.

Marshall Trailers uses a computerized build system to plan production to ensure that machines are delivered on time. The final stage of delivery is undertake by our two artic lorries,and a number of other haulage partners.

Marshall Trailers has a full selection of spare parts for all our ranges, most of which can be dispatched immediately. In some cases we have spares for machines dating back forty years, which gives you peace of mind when buying a Marshall that you will be properly supported well into the future.

Marshall Trailers Brochure 2026

Operating and Safety instructions for all models of monocoque, drop-side, flat and dumper trailers.