“Easy Supro” – Our mission goes beyond delivering equipment. It’s about making your journey home after a successful heavy haul easier, safer, and more rewarding.

Even though we may be oceans apart, Supro Trailer fully understands the sense of relief and satisfaction you feel when a complex transport job is safely completed and you're finally on the road home. That moment of ease and accomplishment is exactly what drives us forward. For Supro, helping you complete every heavy haul safely isn’t just a slogan—it’s a long-term commitment, and the very core of who we are.
We are proud to present our 300-ton girder bridge system, designed to compatible with the original European-made hydraulic modular trailer KAMAG K25. Supro Trailer is honored to announce that this set is now ready to be delivered to a heavy transport company in Europe, where it will take part in real infrastructure projects. This milestone not only proves the quality and reliability of Supro products, but also signifies that our equipment has been officially recognized for use in high-standard European operations.
To ensure top-tier quality, Supro manufactures this equipment in full compliance with national Class 1 welding standards. The entire girder structure is built with seamless welds—free of cracks or porosity. After welding, all critical joints undergo non-destructive testing to eliminate any potential safety risks. Before delivery, we carry out a full range of factory-based function tests, including a static load test under full capacity. Importantly, this testing process is supervised and documented by SGS, one of the world’s most respected third-party inspection agencies, ensuring complete transparency and trustworthiness for our clients.
At Supro, we believe safety is not only engineered—it’s designed. Our girder system features high-strength square cross beams for increased torsional resistance, hydraulic cylinders with lateral locking plates for quick and secure connections, and a rear steering system with hydraulic self-steering capability for improved handling in tight turns. Every structural and functional choice is made with your safety and peace of mind in mind.
From design to delivery, Supro Trailer is committed to supporting your success in every haul. When you work with Supro, you gain more than just equipment—you gain confidence to take on the toughest transport challenges.

Easy Supro – Making Your Heavy Hauls Easy.

Brief Introduction of the Girder Bridge 

Functions Instruction of the Girder Bridge 

Detail Photos of the Girder Bridge 

Overall Photos 

girder bridge trailer

girder bridge trailer

Front Side Beam 

girder bridge side beams

girder bridge side beams

Rear Side Beam 

girder bridge side beams

girder bridge side beams

girder bridge side beams

Rear Automatic Steering System 

girder bridge automatic steering system

Hydraulic Pin between Side beam and Main Beam

girder bridge hydraulic cylinder

girder bridge hydraulic cylinder

girder bridge hydraulic cylinder

Hang Beam 

Girder Bridge Hang Beam

Girder Bridge Hang Beam

Girder Bridge Hang Beam

Width Adjustable Tie Rods

Girder Bridge Width Adjustable Tie Rods

Girder Bridge Width Adjustable Tie Rods

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