Description

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Heavy Leading Company Limited is one of the most reliable manufacturers and suppliers of box type dump semi trailer in China. If you're going to wholesale bulk durable box type dump semi trailer made in China, welcome to get quotation from our factory. All customized products are with high quality and low price.

Product Description

If you've ever dealt with a dump trailer that jams halfway through a delivery, or one that leaks material all over the road, you know how quickly that ruins your whole shift. Lost time, fines, and messy cleanup-this is why I swear by the box type dump semi trailer. It's built to work hard, empty clean, and not let you down.

It is specifically designed for transporting bulk materials such as construction waste, quarry stone, or mining waste. The closed box keeps your load contained, the reinforced frame holds up to rough use, and the hydraulic dump system is built to last. This isn't a light-duty hauler; it's the kind of trailer you want when you need to move serious volume, shift after shift.

Detailed Technical Specifications

Parameter	Details
Model	3-axle box type dump semi trailer
Overall Dimensions	12500×2550×3900 mm
Box Volume	35–45 CBM
Box Material	High-tensile steel (510–700MPa)
Wall Thickness	6–8 mm (floor), 4–6 mm (side walls)
Axle Type	Heavy-duty axles (optional BPW/FUWA)
Suspension	Heavy-duty leaf spring suspension
Tires	12.00R20 / 11.00R20 heavy-duty radial tires
Rated Payload	35–45 tons
Lifting System	Front-mounted hydraulic cylinder with high-pressure seals
Landing Gear	Heavy-duty mechanical landing gear
King Pin	2-inch or 3.5-inch optional
Tailgate Type	Hydraulic swing door / rear door with locking mechanism

Why This Trailer Stands Out

Let's get real. Most dump trailers fail in one of three places: the frame, the box, or the hydraulics. The box type dump semi trailer is built to avoid all three.

1. Frame & Chassis Durability: The chassis is reinforced with high-tensile steel, crossmembers spaced close together to prevent twisting under load. I've seen these units run for years on quarry roads without permanent frame deformation. That means no costly frame repairs down the line.

2. Box Strength & Load Containment: The closed box design keeps material from spilling, which means no roadside cleanup and no lost product. The floor is extra thick (6–8mm) and reinforced to handle impact from heavy rocks. We've loaded these with 10-ton boulders, and the floor doesn't dent. The side walls are ribbed, so they stay straight even under high side loads.

3. Reliable Hydraulic System: The lifting cylinder uses high-pressure seals that don't leak or jam. We've run thousands of dump cycles on these trailers, and they lift smoothly every time. No mid-cycle failures, no stuck doors. That means you empty the load and move on, no delays.

4. Low-Maintenance Design: Parts are widely available, so any mechanic can service the hydraulics, axles, or suspension. The design is simple and robust, with no finicky electronics. That means less downtime and fewer headaches.

Common Issues & How to Fix Them Fast

Even the toughest trailers need occasional attention. Here's how to handle the most common problems:

Slow or stuck dump cycles

Usually caused by a clogged hydraulic filter or low fluid level. Replace the filter and top up the fluid. This is a 10-minute fix.

Material sticking to the floor

Wet or sticky loads can build up. The high-tensile floor is smooth, so most material slides out, but you can add a liner or use a light spray to prevent buildup.

Tailgate won't close or leaks

Check the hinge bolts and rubber seals. Tighten loose bolts and replace worn seals.

Uneven lifting

This can be caused by uneven loading or low hydraulic fluid. Check the fluid level and make sure the load is distributed evenly.