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How heavy is a semi trailer?

Views: 6     Author: Site Editor     Publish Time: 2020-07-23      Origin: Site

A truck semi trailer is a trailer with the axle placed behind the center of gravity of the vehicle (when the vehicle is evenly loaded) and equipped with a coupling device that can transmit horizontal and vertical forces to the tractor. Truck semi trailers are generally three-axle semi trailer, which are divided into many types such as 11-meter warehouse semi trailer, 13-meter warehouse semi trailer, low-bed semi trailer, etc. It is a heavy-duty transportation vehicle connected to the truck semi trailer head through a traction pin.

China semi trailer are common means of transportation for road transport and play an important role in a country's economic development. If road transport is not developed, it will hinder economic development.In addition, as a heavy-duty transport tool, China semi trailer play an important role in road transport. Their design helps to improve transportation efficiency by 30%-50%, reduce costs by 30%-40%, and reduce fuel consumption by 20%-30%, thereby enhancing the comprehensive economic benefits of road transport.

So how heavy is a truck semi trailer?In order to explore the technical parameters of the truck semi trailer deeply, we will take a 13-meter truck semi trailer as an example to analyze its various configurations and weights in detail.

Detailed technical parameters of 13-meter truck semi trailer:

1. Dimensional parameters:

Body length: up to 13,000 mm

Body width: 2,550 mm

Body height (taking heavy-duty warehouse type as an example): 3,400 mm

2. Load and structural parameters:

Height of vehicle plate from the ground: 1,550 mm

Height of traction interface: 1,350 mm

Body weight: 6,300 kg

Total mass: up to 40,000 kg

Rated load: 33,700 kg

3. Tire and suspension system:

Tire specification: 12R22.5

Number of tires: 12 in total

Number of bridges: 3

Axle load: 13 tons per bridge

Suspension system: 4 leaf springs

4. Other configurations:

Single-action outrigger: load-bearing capacity of 28 tons

Wheelbase range: 7,000 to 10,000 mm

Track: unified as 1,820 mm

In China, 13-meter-long trailers mainly exist in the form of China semi trailer, of which the self-weight of medium-light China semi trailer is about 6.3 tons, while the self-weight of ordinary China semi trailer is about 6.8 tons. According to the national standard load, the maximum cargo weight that this type of trailer can usually carry is 34 tons. However, in actual application, medium-light China semi trailer can carry about 35 tons of cargo with a self-weight of 6.3 tons, while ordinary China semi trailer can carry nearly 45 tons of cargo with a self-weight of 6.8 tons.

The weight of a truck semi trailer varies based on a number of factors, each of which affects the trailer's overall load capacity and operating efficiency. Common factors that affect the weight of a truck semi trailer are as follows:

1.Cargo Type

One of the main factors that affect the weight of a truck semi trailer is the type of cargo it is designed to transport. For example, trailers used to transport bulk commodities such as grain or coal typically have a higher capacity but may weigh more due to the greater density of the cargo. Conversely, truck semi trailers used to transport lightweight cargo or perishable items may be designed with lighter materials to optimize payload capacity.

2.Trailer Structural Materials

The materials used in a trailer's structure have a significant impact on its weight. Modern truck semi trailers often use lightweight but durable materials such as aluminum alloys or advanced composites. These materials help reduce the trailer's overall weight without compromising structural integrity, thereby improving fuel efficiency and load capacity.

3.Additional Equipment

Additional equipment on a truck semi trailer, such as a refrigeration unit for temperature-sensitive cargo or a lift gate to facilitate loading and unloading, can increase the trailer's overall weight. Manufacturers and operators must balance the need for these features with the impact on payload capacity and operating costs.

4.Fuel Efficiency and Performance

The weight of a truck semi trailer directly affects its fuel efficiency and overall performance. Heavier truck semi trailers require more fuel to transport the same load, resulting in increased operating costs and environmental impact. Manufacturers continue to innovate and design lightweight yet strong trailers to optimize fuel efficiency and improve overall performance.

As the governance of relevant departments becomes increasingly strict, long-distance truck semi trailer transportation is increasingly tending towards standard load transportation. Under the condition of a certain gross vehicle weight limit, the lighter the truck semi trailer is, the more weight space can be allocated to load goods. For car owners, they can reasonably earn higher freight rates within the standard load range.

Market demand drives production. In the future, more and more China semi trailer will begin to take the road of lightweighting. In order to achieve lightweight trailers, many trailer manufacturers have come up with many ways, such as replacing traditional steel with aluminum alloys, punching special-shaped holes on the beams, changing double tires to large single tires, configuring air suspension or lightweight axles, etc. Taking lightweight axles as an example, each can reduce the weight of the trailer by about 15% on average compared to traditional axles, which can effectively reduce the weight of the trailer itself, increase the range of choices for car owners for goods, and reduce fuel consumption, energy saving and environmental protection.

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