Double axle low bed semi trailer

Types of Double Axle Low Bed Semi-Trailer

A double axle low bed semi-trailer is a type of trailer commonly used for transporting heavy equipment and machinery. It is designed with a low deck height, making it easier to load and unload heavy items. The trailer has two axles, each with its own set of wheels, providing stability and support when carrying heavy loads.

The double axle low bed semi-trailer has different types, such as:

• Fixed Double Axle Low Bed Semi-Trailer

  As the name suggests, the axles of the fixed low bed semi-trailer are permanently attached to the trailer. This means that the distance between the axles and between the axles and the trailer is constant. The fixed low bed semi-trailer is very stable when being towed by a truck. It is also more durable because there are no moving parts between the axles and the trailer.

• Sliding Double Axle Low Bed Semi-Trailer

  For sliding low bed semi-trailers, the axles are not permanently attached. Instead, the axles are mounted on rails or tracks that allow them to move back and forth. This adjustability offers various advantages. For instance, the distance between the axles can be adjusted according to the requirements of the load being transported. Additionally, the distance between the axles and the trailer can be adjusted to improve maneuverability in tight spaces.

• Gooseneck Double Axle Low Bed Semi-Trailer

  A gooseneck low bed semi-trailer is a type of trailer that is designed for heavy hauling. It is characterized by a neck that extends over the towing vehicle's bed, creating a connection that is similar to a bicycle's handlebar. This design allows for increased stability and control when towing the trailer, making it suitable for transporting heavy equipment and machinery.

• Detachable Double Axle Low Bed Semi-Trailer

  The detachable double axle low bed semi-trailer is designed to be easily attached and disconnected from the towing vehicle. This is achieved through the use of a detachable coupling system, which allows for quick and efficient coupling and uncoupling of the trailer. The detachable low bed semi-trailer is versatile and can be used for various applications, including transporting heavy equipment and materials.

• Extendable Double Axle Low Bed Semi-Trailer

  The extendable double-axle low bed semi-trailer is designed to transport long and oversized loads. It has a telescopic design, allowing the trailer's length to be increased or decreased according to the requirements of the load being transported. The extendable low bed semi-trailer is equipped with a hydraulic system that enables the trailer to be extended or retracted quickly and easily.

Specification and maintenance of Double Axle Low Bed Semi-trailers

Here is the specification of the double-axle low-bed semi-trailer:

• Weight Capacity

  The double axle low bed semi trailer has a maximum load capacity of 50 tons, and its own weight is about 10 tons. Therefore, the total weight can reach 60 tons.

• Trailer Size

  The length of the trailer is usually between 12 and 13 meters, and the width is 2.5 meters. The loading platform is 6 to 7 meters in length.

• Axles

  The number of axles is usually two, and the axle load is 10 to 12 tons. The axle diameter is 200 to 250 mm.

• Tires

  The low bed semi-trailer uses 12 to 16 tires, and the tire size is 385/65R22.5. The tire pressure is 8 to 10 bar.

• Frame

  The frame is usually made of high-strength steel with a thickness of 6 to 8 mm. In addition, the frame is designed with a low loading height of 1.0 to 1.2 meters.

• Suspension System

  The suspension system of the double-axle low-bed semi-trailer adopts leaf spring suspension, with a suspension stroke of 300 to 400 mm. Some models also have airbag suspension systems.

• Steering System

  The low-bed semi-trailer is equipped with a manual or hydraulic steering system. The steering angle is 15 to 20 degrees.

• Braking System

  The braking system adopts hydraulic brakes or pneumatic brakes. The brake pads are made of high-friction materials.

• Loading Methods

  There are loading ramps or loading platforms on the double-axle low-bed semi-trailers for loading and unloading goods. The loading ramps are designed with a loading angle of 10 to 15 degrees.

Here is the maintenance of the double-axle low-bed semi-trailer:

• Tire maintenance

  Check the tire pressure regularly; ensure the tire pressure is within the specified range; regularly check the tread wear condition of the tires; replace the tires in time if they are worn out; and keep the tires clean and free of debris and mud.

• Axle maintenance

  Regularly check the axle bearings; lubricate the axle bearings with grease regularly; check the axle seal rings regularly to avoid oil leakage; and replace the seal rings in time if they are damaged.

• Frame maintenance

  Regularly check the frame for cracks and damages; repair and reinforce in time if there are cracks; keep the frame clean and free of dust and dirt; and regularly check the frame connection parts and fasten them with bolts.

• Suspension maintenance

  Regularly check the suspension system; lubricate the suspension system with grease; and replace the suspension parts in time if they are damaged.

• Braking system maintenance

  Regularly check the braking system; adjust the brake clearance to ensure the brake effect; and replace the brake pads in time if they are worn out.

• Loading system maintenance

  Regularly check the loading system; replace the loading ramp or platform in time if it is damaged; and ensure the loading system is safe and reliable.

How to choose double axle low bed semi-trailer

When retailers buy a double-axle trailer, they must ensure that it meets various transportation needs. They should consider the weight capacity, the trailer's ability to transport heavy loads, and the overall construction and design of the trailer.

• Weight capacity:

  When purchasing a double-axle low-bed semi-trailer, buyers should look at the weight capacity. The gross weight and the net weight of the trailer should be considered. The gross weight is the weight of the trailer when loaded, while the net weight is the weight of the trailer itself. A semi-trailer with a larger gross weight capacity can transport more heavy cargo and freight.

• Loading and unloading:

  When choosing a low-bed semi-trailer, buyers should consider the loading and unloading methods. If the goods can only be loaded and unloaded from the side, a double-axle low-bed semi-trailer with a side-wall design should be purchased.

• Vehicle compatibility:

  Buyers need to consider the compatibility between the semi-trailer and the truck that pulls the semi-trailer. The semi-trailer size and weight must be within the truck's towing capacity. Otherwise, it will cause unsafe towing and unstable driving.

• Material and maintenance:

  The double-axle low-bed semi-trailer is made of various materials, including steel and aluminum. Each material has its advantages and disadvantages. Buyers should choose according to their needs. Additionally, double-axle low-bed semi-trailer maintenance should be simple. Buyers should pay attention to the maintenance intervals and necessary maintenance operations when buying.

How to diy and replace double axle low bed semi trailer

Here is an easy step-by-step guide on how to DIY and replace the double-axle low-bed semi-trailer:

• Identify the problem

  Look at the trailer properly and see where it has a problem. It could have a broken spring leaf, a flat tire, a broken axle, or something else. Make sure to see the problem well before doing anything.

• Get the right tools

  Get tools that will help fix the problem. For a flat tire, get a jack and a new tire. For spring leaves, get the right tools to fix that. Make sure the tools are safe and good to use.

• Prepare the trailer

  When fixing, make sure the trailer is on a flat surface. Then, use blocks and stands to hold it well. This is to ensure it does not move or fall while fixing.

• Follow safety procedures

  Always take care of the body and do not rush. When using the jack to lift the trailer, make sure to put it well under the safe points. Also, ensure the new tire or spring leaf is in the right place before the trailer comes down.

• Inspect and replace

  Look at the tire or spring leaf that is bad. If it is too bad, take it out and put a new one in that place. Make sure the new part is well fixed and will not fall or break.

• Test before use

  After fixing, check again to see that everything is alright. Then, move the trailer a little to see if the new parts are working well. If it moves well, then the fixing is successful.

Q and A

Q1: What is a double-axle low-bed semi-trailer?

A1: A double-axle low-bed semi-trailer is a type of trailer commonly used in heavy transport. It has two axles and is designed to be low to the ground, which makes it easy to load and unload heavy equipment.

Q2: What are the benefits of using a double-axle low-bed semi-trailer?

A2: The benefits of using a double-axle low-bed semi-trailer include its ability to transport heavy equipment, its stability, and its versatility.

Q3: What can be transported using a double-axle low-bed semi-trailer?

A3: Double-axle low-bed semi-trailers can transport heavy and oversized loads, including construction equipment, agricultural machinery, and industrial equipment.

Q4: Are double-axle low-bed semi-trailers suitable for all road conditions?

A4: While double-axle low-bed semi-trailers are designed for use on most roads, their performance can be affected by certain road conditions, such as poorly maintained roads or extreme weather.

Q5: What is the difference between a single-axle and a double-axle low-bed semi-trailer?

A5: The main difference is the number of axles. Single-axle low bed semi-trailers have one axle, while double-axle low-bed semi-trailers have two axles. This means that double-axle trailers can carry heavier loads and offer more stability.