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Two-axle dump semi-trailers are built with two axles under the chassis to support weight and offer stability. They come in different designs for varied purposes and load capacities. Here are some common types:
End Dump Trailers
End dump trailers have a hinged, dumpable trailer body at the back. They are designed to transport loose materials like sand, gravel, or dirt. When unloading, the front part of the trailer lifts up, and the content dumps out through the opened back part.
Flip-Over Dump Trailers
Flip-over dump trailers can convert into a dump truck or a lowbed trailer. They often have a hydraulic system that lifts the front part of the trailer to dump the load through the back. The flip-over feature makes it versatile.
Side Dump Trailers
Side dump trailers have two hydraulic cylinders that lift the trailer body and dump the load through the sides. They are designed to unload in tight spaces where end dump trailers cannot fit. Side dump trailers are ideal for wet or cohesive materials.
Bottom Dump Trailers
Bottom dump trailers have a split bottom that opens up to release the load. They are designed to discharge material continuously while moving. Bottom dump trailers are used to haul asphalt, coal, and aggregates.
Live Bottom Trailers
Live bottom trailers have moving floors that transport the material to the back. They eliminate the need for dumping and can unload the material while driving. They are suitable for hauling food products, construction materials, and frozen materials.
Tipper Trailers
Tipper trailers have a design that allows them to lift one side and dump the load. They are often used in construction sites to transport equipment and materials.
Aggregate Trailers
Aggregate trailers are designed to transport aggregates like gravel, sand, and stones. They have a robust construction and can be end dump or bottom dump trailers.
Bulk Powder Trailers
Bulk powder trailers are designed to transport powdered materials like cement. They have a sealed body to prevent material leakage and ensure safety.
Each type of two-axle dump semi-trailer is designed for specific applications and loading materials. When choosing a trailer, consider the purpose, load type, and environmental conditions.
Manufacturers provide a detailed specification of the 2-axles dump semi-trailer to help buyers understand the product and select the right one that meets their business needs. Here are some of the standard specifications:
Tare Weight
It refers to the weight of the dump trailer itself without any cargo. It is also known as the trailer's payload capacity. The 2-axle dump trailers have a lower Tare weight than the 3-axle dump trailers. The Tare weight for a 2-axle dump semi-trailer ranges from 7,000 to 15,000 pounds.
Payload Capacity
Dump trailers are designed to haul heavy materials. Therefore, they have a high payload capacity. The payload capacity for a 2-axle dump semi-trailer ranges from 14,000 to 40,000 pounds.
Overall Length
The 2-axle dump trailers have a compact design; thus, they have a shorter overall length compared to the 3-axle dump trailers. The overall length for a 2-axle dump semi-trailer ranges from 10 to 16 feet.
Overall Width
The overall width for a 2-axle dump semi-trailer ranges from 6 to 8 feet.
Overall Height
The overall height for a 2-axle dump semi-trailer ranges from 4 to 8 feet.
Axles
The number of axles on the dump trailer is already indicated in its name. However, some manufacturers may specify the axle configuration. The axle configuration for a 2-axle dump semi-trailer is two 7,000 to 10,000-pound capacity axles.
Wheel size
The wheel size for a 2-axle dump semi-trailer ranges from 12 to 24 inches. Some manufacturers may indicate the wheel size in millimeters.
Brakes
Brakes are important components of a dump semi-trailer. They are used to slow down and stop the trailer to prevent accidents. The most common type of brake used in 2-axle dump semi-trailers is the electric brake. Some manufacturers may specify the brake size, which typically ranges from 10 to 12 inches.
Suspension
Dump semi-trailers use several suspension systems to ensure a smooth ride. The most common type of suspension system is the leaf spring suspension. Other types of suspension systems include the spring, air-ride, and rubber torsion suspensions.
Material
The dump semi-trailer is constructed using different types of materials. The most common type of material used in the construction of a 2-axle dump semi-trailer is steel. Other materials include aluminum and fiberglass.
It is important to maintain a 2-axle dump semi-trailer to keep it in good working condition and improve its durability. Here are some standard maintenance practices:
In this section, the factors that business buyers need to consider when purchasing 2-axle dump semi-trailers are discussed.
Load Capacity
When purchasing a 2 axles dump semi-trailer, consider the load capacity. The load capacity must correspond with the capacity of the truck that tows the trailer. This is because the combined weight of the truck and trailer should not exceed the legal limit. Also, consider the type of materials that will be transported. For loose materials like gravel or sand, a higher load capacity is required.
Construction and Materials
When purchasing a 2-axle dump trailer, the construction and materials should be considered. The trailers are constructed with steel, aluminum, or a combination of both. Steel trailers are durable and have a high resistance to damage. However, they are heavier than aluminum trailers. Aluminum trailers are lightweight and rust-resistant. Consider the advantages and disadvantages of each of the materials to find the one that suits the needs of the business.
Size and Dimensions
Size and dimensions are important factors to consider when purchasing a 2-axle dump trailer. The length and height of the trailer impact the volume of materials that can be transported. Length is also an important factor when maneuvering in tight spaces. The dimensions of the trailer should fit the specific requirements of the business.
Tire Size and Type
When purchasing a 2-axle dump trailer, consider tire size and type. The tires of the trailer have to be suitable for off-road and on-road use. Tire size should be selected based on the type of terrain that the trailer will be used. A larger tire size offers a better ground clearance and off-road capability.
Tailgate Design
Tailgate design is an important factor to consider when purchasing a 2-axle dump trailer. The tailgates offer easy loading and unloading of materials. Some tailgates swing open, while others are removable. Consider the most convenient design for the specific use cases of the business.
Braking System
Another important factor to consider when purchasing a 2-axle dump trailer is the braking system. The braking system should provide effective braking, considering the trailer's weight. Also, consider the type of braking system that requires less maintenance.
Suspension
When purchasing a 2-axle dump trailer, consider the type of suspension system. Trailers with air ride suspension provide a smoother experience. On the other hand, trailers with spring suspension are more affordable.
Budget
When purchasing a 2-axle dump trailer, budget is an important factor to consider. Set a budget that will cover the cost of the trailer, registration, towing equipment, insurance, and maintenance. Compare the features of different trailers to find the one that fits the budget while meeting the requirements of the business.
Replacing parts of a 2-axle dump semi-trailer can be complex and potentially dangerous. However, here are some general steps that can be taken to replace some parts of an axle dump semi-trailer:
Identify the problem
This involves inspecting the dump trailer to identify the worn-out or damaged parts. This inspection should be done carefully to avoid accidents.
Gather the necessary tools
These tools are dependent on the part that is being replaced. For instance, if the axle is being replaced, a jack and socket set will be needed. Other important tools needed for different parts include wrenches, pliers, screwdrivers, and hammer.
Lift the trailer
Lift the trailer using a jack or other lifting equipment. This particular step should be done after ensuring that the trailer is on a flat surface and the jack is placed on a solid part of the trailer.
Remove the old part
This involves using the appropriate tools to remove the old or damaged part. For example, when replacing the axle, the bolts holding the axle to the trailer frame are removed.
Install the new part
This involves aligning the new part with the trailer and using bolts or other fasteners to secure it. For example, when installing a new axle, it is aligned with the trailer frame and secured using bolts.
Lower the trailer
After replacing the part, the trailer is lowered carefully by removing the jack or other lifting equipment.
Test the trailer
This involves towing the trailer to ensure that it is functioning properly and that there are no unusual noises or vibrations. This particular step is very important, as it ensures that the part that is replaced is functioning well.
Q1: What are 2 axles dump semi trailers used for?
A1: 2-axle dump semi-trailers are used for hauling and transporting loose materials such as sand, gravel, dirt, and debris in construction, mining, agriculture, and landscape operations.
Q2: How much can a 2-axle dump semi-trailer haul?
A2: The payload capacity of a 2-axle dump semi-trailer varies depending on the model and construction. In general, it can haul between 10,000 to 30,000 pounds (4,500 to 13,600 kg) or more. Be sure to check the specific model's specifications and local regulations for weight limits.
Q3: What materials are 2 axles dump semi trailers made of?
A3: 2-axle dump semi-trailers are typically constructed from steel or aluminum. Steel offers durability and strength, while aluminum is lighter and resistant to corrosion, which can improve fuel efficiency.
Q4: Can 2-axle dump semi-trailers be customized for specific needs?
A4: Yes, 2-axle dump semi-trailers can be customized with different configurations, such as tailgate designs, body materials, and hydraulic systems, to meet specific industry requirements and preferences.
Q5: Are 2-axle dump semi-trailers suitable for off-road operations?
A5: Some 2-axle dump semi-trailers are designed for off-road operations with features such as high ground clearance, robust suspension, and all-terrain tire options. These features make them suitable for challenging environments like mining or rural areas.
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