Let’s take another look — the STN-V4 from Supro Trailer isn’t just another hydraulic modular trailer; it’s a smarter evolution of heavy-duty transport design. When operating with its advanced free steering system, the STN-V4 achieves a travel height of only 820 mm. That’s exactly the same as the minimum travel height of the earlier STN-V3 model, yet the V4 can maintain this level even while performing dynamic steering. This detail might seem small, but it makes a world of difference on the road.

In practical transport conditions, especially when passing through low-clearance environments such as tunnels, bridges, or factory entrances, every millimeter counts. Traditional trailers often require a drop deck to lower the cargo height, adding extra steps and reducing operational flexibility. The STN-V4 changes that. With its optimized structure and hydraulic system, it can directly load cargo onto the main platform and still meet the clearance requirements for tunnel passage. No additional attachments, no wasted time — just smooth, efficient movement.

Beyond its height advantage, the V4’s free steering capability provides superior maneuverability, allowing the vehicle to adapt seamlessly to complex routes and tight spaces. Combined with its robust chassis and balanced weight distribution, the STN-V4 ensures both stability and safety during transport of high-value heavy cargo such as windmill components, transformers, and industrial modules.

Supro Trailer designed the STN-V4 not just for power, but for practicality. Every feature is built around one goal — making your heavy-duty transport easier, safer, and more efficient. Whether you are navigating under a tunnel, crossing narrow factory zones, or handling long-distance hauls, the STN-V4 gives you the flexibility and confidence to perform without compromise.

In the world of heavy haulage, where precision and clearance often define success, the STN-V4 stands as a symbol of intelligent engineering. Its 820 mm height, structural efficiency, and free-steering agility prove that innovation isn’t only about complexity — it’s about making every transport task simpler, smarter, and smoother.