As a core equipment in the logistics and transportation industry, the 13m 3-axle stake semi-trailer has become the preferred solution for medium-to-long distance highway cargo transport due to its stable performance, flexible loading methods and wide adaptability. Detailed introduction from core parameters, material technology, safety configuration and application scenarios is as follows: I. Core Parameters & Loading Capacity

• Dimensions: Total length 13,000mm (adjustable ±500mm according to local road standards), total width 2,500mm (complying with international highway transport width limits). Stake height is available in four options: 0.6m, 1.2m, 1.5m and 1.8m, meeting different cargo stacking needs. The wheelbase adopts a balanced distribution design to ensure driving stability and steering flexibility.
• Loading Performance: Equipped with 3 heavy-duty axles (13T/16T reinforced axles optional), matched with 12R22.5 vacuum tires (6+1 spare tire configuration). Rated load capacity is 35-40 tons, with a maximum allowable total mass of up to 49 tons. It is suitable for transporting heavy goods such as coal, steel and building materials, as well as bulk boxed and bagged goods. The loading efficiency is 15%-20% higher than that of ordinary semi-trailers.
• Weight Control: Adopting a lightweight design concept, the main frame is made of high-strength Q345B/Q550 steel. On the premise of ensuring structural strength, the total weight of the vehicle is controlled at 6.5-7.5 tons, effectively improving cargo loading capacity and transportation economy.

II. Material Technology & Structural Features

• Frame Structure: The main beam adopts a double I-beam welded structure, with web thickness of 8-12mm and flange plate thickness of 14-16mm. It is manufactured by CNC plasma cutting and robot welding, featuring high weld strength and small deformation, which can withstand long-term heavy loads and complex road impacts. Crossbeams are evenly distributed with a spacing of 500mm to enhance the supporting stability of the cargo box.
• Stakes & Floor: Stakes are made of 1.5mm thick high-quality checkered steel plate, formed by bending and then welded and reinforced. The surface is sprayed with a double-layer anti-corrosion coating (cathodic electrophoresis + high-temperature baking paint), which has strong weather resistance and can effectively resist rain, dust and cargo friction corrosion. The floor is made of 3mm thick anti-slip checkered steel plate with an anti-slip coefficient ≥0.7, preventing cargo from sliding during transportation and facilitating forklift loading and unloading.
• Connections & Accessories: Stakes are connected by detachable locking rods, which are easy to operate and can be quickly opened or closed. Equipped with high-quality trailer supports (manual/electric optional) with strong load-bearing capacity and stable lifting. The fifth wheel coupling is forged from 50# steel, compatible with mainstream tractor units and featuring high connection reliability.

III. Safety Configuration & Driving Guarantee

• Braking System: Equipped with pneumatic drum brakes (disc brakes optional), matched with ABS anti-lock braking system and EBD electronic brake-force distribution system, which effectively shortens the braking distance and avoids wheel lock-up and skidding during emergency braking. The brake pipeline is made of copper pipes, which are anti-aging and corrosion-resistant, ensuring stable braking performance.
• Driving Stability: Adopting multi-leaf leaf spring suspension (10-12 leaves per axle) with excellent shock absorption effect, suitable for driving on rough roads. The axle adopts a dual-tire parallel design with a large ground contact area and strong grip, reducing the risk of rollover. The height of the vehicle's center of gravity is controlled below 1.8m, further improving driving stability.
• Safety Protection: The vehicle is equipped with a full set of lighting and warning devices such as reflective signs, clearance lamps and rear position lamps, complying with GB7258 and international ECE R69 safety standards. The side guardrails and rear protective frame are welded with high-strength steel pipes, effectively preventing pedestrians or other vehicles from being involved and ensuring road transportation safety.

IV. Application Scenarios & Value

• Cargo Types: Suitable for transporting bulk/large goods such as coal, sand, cement, steel and wood, as well as bulk boxed and bagged goods such as agricultural products, industrial parts and daily necessities. The flexible loading form eliminates the need for additional customized cargo boxes.
• Transport Scenarios: Compatible with medium-to-long distance transportation on different levels of roads such as highways, national highways and provincial highways. It can meet the needs of trunk line transportation, regional transfer and short-distance distribution of different customers such as logistics enterprises, freight companies and manufacturers, especially suitable for cross-regional bulk commodity transportation.
• Application Advantages: The open stake design facilitates cargo loading, unloading and inventory, compatible with various loading and unloading equipment such as forklifts and cranes. The design combining lightweight and high strength improves load-bearing capacity while reducing fuel consumption, helping customers reduce transportation costs. The standardized production process ensures stable product quality, with a service life of 8-10 years and low maintenance costs.