Custom Truck Chassis Manufacturing

TRJ Engineering specialises in custom truck chassis manufacturing

TRJ Engineering has been at the forefront of custom truck chassis manufacturing for over 20 years. Our manufacturing service for the transport industry continues to evolve with our clients’ needs.

We began manufacturing truck chassis in the late 1990s. At this time, we only produced 10 truck chassis annually. Currently, we fabricate over 150 truck chassis each year for key clients, including FTE & Genuine Truck Bodies. As a result of our steady experience growth, we now dedicated four 13 metre welding bays to the fabrication of custom trucks chassis. Each day, you see these chassis on Australia’s roads, driven by blue chip companies such as Aldi, Bega, Scott’s and more. 

We help clients increase truck durability and reduce the vehicle’s manufacturing cost as a result of our state of the art engineering processes. This leads to the delivery of a premium product, on time and on budget, every time. Furthermore, we are able to fabricate and repair trailers, both as one-off jobs or for fleets.

To enquire how we can assist your business with your transport fabrication needs, please call us today on (03) 9703 1707.

Alternatively, send us an email at

Knorr-Bremse & Metro Trains - Door Testing Rig
Knorr-Bremse & Metro Trains - Door Testing Rig

Train Door Test Rig

TRJ Engineering designed and manufactured a fire rating test rig in order to assure the safety of Melbourne’s train doors. Metro Trains engaged Knorr-Bremse to test and record the doors’ fire rating. Due to the task complexity, Knorr-Bremse needed a leader in steel fabrication and transport engineering. Accordingly, TRJ Engineering fabricated and ensured the test rig was functional to specification before delivery.

Knorr-Bremse is one of the world’s leading manufacturers of braking and on-board systems for rail vehicles. Their product portfolio includes door systems, air conditioning installations, control components and windscreen wipers. Their range is represented in 25 countries around the world, with a global annual turnover of over 3 billion AUD.

Custom Car Chassis & Trailer Manufacturing

Cobra Chassis

Cobra Chassis (4)

Custom Car Trailer

Car Utility Bodies