4 Axle 17m Low Bed Trailer with Hydraulic Sliding Ramps

Track and wheel gauge variations among heavy construction equipment create frequent loading headaches when using conventional trailers with stationary ramps. This 17m x 3.4m 4-axle low-bed semi-trailer introduces a dedicated hydraulic lateral shifting mechanism integrated directly into the rear ramp assembly. Operated via dedicated hydraulic control valves, each ramp slides smoothly across the rear crossmember, allowing operators to adjust the ramp spacing to the exact track width of compact rollers, standard excavators, or extra-wide crawlers. This precise alignment ensures equipment tracks remain fully centered on ramp runners, dramatically reducing equipment slip risks and expediting turnaround times.

The two-section hydraulic folding design provides critical benefits for low-ground-clearance machinery. Compared to conventional single-piece ramps, the folding two-stage layout extends the overall incline length, resulting in a significantly lower gradient. Tracked machinery transitions smoothly from ground level to the trailer deck without bottoming out at the rear break-over angle. When raised for transit, the ramps fold compactly against the rear frame, preserving legal overhang allowances and rear illumination visibility.

With dimensions of 17m in length and 3.4m in deck width, the platform provides expansive real estate for extra-long and oversized equipment. The robust chassis is fabricated from high-strength structural steel, engineered to resist torsional flex under extreme concentrated center loads. Four heavy-duty axles fitted with reinforced mechanical leaf spring suspension distribute gross weight evenly over rough quarry access roads and gravel detour tracks, ensuring long service life with minimal downtime.

As an experienced low bed trailer manufacturer running our own China heavy haul trailer production line, the high-tensile main beams, hydraulic sliding tracks, and dual-cylinder ramp mechanisms are engineered and fabricated in-house at LUYI Vehicle. Ordering factory direct gives fleet owners complete engineering access for deck height, sliding stroke length, axle brands, and lashing point configurations tailored to specific equipment transport profiles.