40 FT Platform Semi Trailer For Sale
Flatbed Trailer$10,250.00
HUAYU 40 FT platform semi trailer with 70-ton capacity for building materials, machinery, and containers on a flat open-deck design.
HUAYU 40 FT Platform Semi Trailer
The 3 axle platform semi trailer can transport up to 70 tons of cargo. For larger load requirements, HUAYU customizes the axle count and frame to match. Contact us with your cargo specifications for a custom quote. Platform trailers are widely used in logistics and construction because the flat open deck handles oversized, overlong, and overweight cargo that enclosed trailers cannot carry.
The platform semi trailer is sized to fit standard containers. The most common configurations are 20-foot and 40-foot, with 4, 8, or 12 container locks installed depending on the buyer's cargo mix. With 12 locks, operators can secure one 40-foot container or two 20-foot containers in a single trip.
40 FT platform semi trailer detail
The main beam stands 530mm tall with an 18mm top plate, 20mm bottom plate, and 12mm middle web. That bottom plate is thicker than the top because it handles more bending tension under load — a design choice that adds frame strength where it counts without increasing total weight. For a 70-ton platform trailer, beam dimensions like these keep the deck flat and rigid over years of heavy use.
8mm Heavy-Duty Mechanical Suspension
40 FT platform semi trailer heavy-duty suspension
HUAYU uses an 8mm heavy-duty mechanical suspension on this platform semi trailer. The front and rear sides are reinforced with triangular steel brackets, and the inside of the suspension is reinforced with angle steel while the outside uses two pieces of reinforced steel. The two suspension links are double-reinforced with steel pipes and U-shaped steel.
That reinforcement pattern is designed to prevent suspension deformation from long-term overloading or rough road impacts. Proper maintenance further extends the service life of these components. When a loaded trailer hits a pothole at speed, the shock load passes through the suspension into the axle mounts — weak mounts crack over time. The double reinforcement on this HUAYU platform trailer extends the life of those mounting points, reduces tire wear from misalignment, and keeps the trailer tracking straight.
Platform Trailer Suspension Detail
40 FT platform semi trailer suspension close-up
| Parameter | Value |
|---|---|
| Dimensions (L x W x H) | 13000 x 2500 x 1630mm |
| Load Capacity | 70 Ton |
| Floor | 3mm pattern plate |
| Twist Lock | 12 sets |
| Main Beam | Girder height 530mm, thickness up 18mm / down 20mm / middle 12mm |
| Axles Brand | FUWA / SAF / BPW / HUAYU |
| Landing Gear | 28 Ton JOST |
| Mechanical Suspension | 8mm heavy suspension |
We haul loaded containers and construction equipment with this platform trailer. The 530mm main beam is visibly heavier than other trailers in our fleet and the deck has not flexed under 65-ton loads. The 8mm heavy suspension is a real upgrade over the standard 6mm versions we had before — fewer alignment issues and longer tire life.
2025-07-28
Good platform trailer for mixed cargo operations. We carry containers one week and oversized machinery the next. The open deck makes loading straightforward with our yard crane. The JOST landing gear and FUWA axles are easy to maintain. One note — the 3mm floor plate shows surface scratches from heavy equipment, but no structural impact.
2025-05-03
This platform semi trailer handles our heaviest jobs. The double-reinforced suspension mounts have held up on rough mine access roads where our previous trailer's mounts cracked within a year. The 70-ton rating gives us headroom for overweight containers, and the triangular steel reinforcement at the suspension is clearly a step above standard designs.
2026-01-22
We compared five suppliers before buying this HUAYU platform trailer. The main beam dimensions and 8mm suspension were the best we found at this price. After three years of regular use the frame is straight, the suspension has not deformed, and we have not needed any structural repairs. Good investment for our logistics fleet.
2025-11-09
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