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The 3 axle and 4 axle lowbed semi-trailer is generally used to transport heavy-duty vehicles such as full-traction trucks and agricultural vehicles, rail vehicles, mining machines, forestry machines, agricultural machines such as digging machines and push-on machines, loaders, ballasts, cranes, and other heavy-duty cargo. The lower its center of gravity, the better the stability and safety, the better the ability to transport super oversized and overweight cargo and pass overhead obstacles.
The 3 axle and 4 axle lowbed semi-trailers are generally used to transport heavy-duty vehicles such as full-traction trucks and agricultural vehicles, rail vehicles, mining machines, forestry machines, agricultural machines such as digging machines and push-on machines, loaders, ballasts, cranes, and other heavy-duty cargo. The lower the center of gravity, the better the stability and safety, the better the ability to transport super oversized and overweight cargo and pass overhead obstacles. The 3 axle and 4 axle lowbed semi-trailer is also widely used for various mechanical equipment, large objects, and highway construction, and transportation of various steel materials for equipment, large tanks, power station equipment and machines.
3 axle and 4 axle lowbed semi-trailers usually use concave beam type or well type frame, of which the front section of the frame is a gooseneck and the rear end of the gooseneck is connected to the semi-trailer. The kingpin in the front section of the gooseneck is connected to the traction saddle on the tractor tuck. The middle section is the cargo platform, which is the lowest part of the frame, and the rear end is the wheel frame including the wheels. When loading machinery and equipment onto the 3 axle or 4 alxe lowbed semi-trailer, the machinery and equipment are usually loaded from the rear end of the semi-trailer. The mechanical equipment is moved from the rear wheel frame or the wheels are removed, and then the special mechanical equipment is fixed on the semi-trailer.
The 3 axle and 4 axle lowbed semi-trailer can be categorized into flatbed type, four-beam type, and tire-exposed structure type. The main beam is straight or gooseneck. The frame is stepped and the longitudinal beam section is I-shaped, which has the characteristics of high rigidity and high strength. The main plane of the frame and cargo platform is low, which ensures the stability of transportation and is suitable for carrying all kinds of construction machinery, large equipment, and steel. From the perspective of axles, 3 axle and 4 axle lowbed trailer can be divided into three-axle balance type, two-axle balance type, and rigid suspension. A mass balance block is usually installed between the front and rear leaf springs, which can make the deflection of the front and rear leaf springs change in the same amount so that the front and rear axles are balanced in force.
3 axle and 4 axle lowbed semi trailer adopts advanced and flexible computer-aided design software. The frame bearing surface is designed according to user requirements to meet the transportation of various special goods.
There are two types of low-bed transporters: two-axle and three-axle. Both come with landing gears. They are generally below 13 meters. Trailers are divided into semi-trailers and full-trailers. A semi-trailer axle is placed behind the center of gravity of the vehicle, when the vehicle is evenly loaded, and a trailer equipped with a coupling device that can transmit horizontal or vertical forces to the vehicle lead. The front part of the pallet rests on the pallet of the cart.The load of the full trailer is fully borne by itself and is only connected with the tractor trucks by hooks. The tractor trucks only provide power to help the trailer overcome the frictional resistance of the road. The full-trailer can stand upright with its own tires with length generally about 6.5 meters. Semi-trailer trucks and low-bed trucks must have a water spray system before leaving the factory because in long-distance transportation, long-term braking will cause the wheels to heat up. Failure to cool the brakes will reduce the braking effect or even total braking failure. It may also reduce the service life of the wheels, axles, and tires.
The 3 axle and 4 axle semi-trailer frame is mainly composed of beam-welded I-beam, support beam, connecting beam, side beam, lock head, kingpin, panel, etc. The side beams are generally channel steel or bending parts. At present, most semi trailers use channel steel. There will be more side beams for light-weight hanging bending parts because the requirements for strength are not too large. The support beam is the through beam, most of which are now W beams. Channel steel above 10# is only used for heavy goods
Kingpin is an important component that connects the semi-trailer and the tractor tuck and bears the gravitational force of the vehicle, and is connected with the traction seat. It is usually forged from steel of chrome alloy structure. For different cargo tonnage, there are #50 kingpins and #90 kingpins. Generally speaking, the total weight of the trailer and the cargo is limited to 50 tons. If the weight of the trailer is less than 50 tons, the #50 pin will be used. If it’s 50 tons or more, then #90 will be used for insurance purposes.
The 3 axle or 4 axle semi-trailer suspension normally adopts non-independent steel plate stamping rigidity. The suspension consists of tandem leaf springs and suspension supports, which are used to support the load and reduce the impact of the dynamic load of the vehicle. Due to the different uses of special vehicles, there are also different requirements for the design of the suspension. There are four commonly used suspensions: tandem leaf spring balance suspension, single-point suspension, air suspension, and rigid suspension (one line and two axles).
The 3 axle and 4 axle semi trailer axle is connected to the frame through leaf springs and tie rods and suspension devices. It is used to support and transfer loads between the frame and the wheels. In China, some of the main semi trailer axle brands are FUWA, BPW, and so on. Among them, FUWA is the most popular.
The electrical system of the 3 axle and 4 axle semi-pull truck is composed of seven-core sockets, cables, air circuits, various lamps, etc. It is used for lighting, safety warning, air supply for brakes, and so on. Generally speaking, you can basically know the quality of the factory by looking at the regularity of the electrical wiring. You can know more about the bigger picture from such details.
Landing gear of the 3 axle and 4 axle semi-trailer is mainly used to support the trailer when it is disengaged. It is composed of different parts such as outriggers and connecting brackets. Some of the brands that produce quality landing gears are FUWA and JOST.
The 3 axle and 4 axle semi-trailer protection device is composed of side protection and rear protection to protect pedestrians and other vehicles from getting under the semi-trailer. It can actually helep with fuel efficiency if it is done well. It is called side skirt when it serves the purpose of reducing the wind resistance. This can be done in many other countries, but if it is made into a side skirt in China, it is called illegal remodeling and will be punished.
Other accessories on the 3 axle and 4 axle semi-trailer include tool boxes, spare tire racks, gantry racks, stakes, etc. There are also some small accessories such as rope tighteners, rope hooks and other highly functional accessories, which should be selected according to the type of goods trasported.
The 3 axle and 4 axle lowbed semi-trailer is generally used to transport heavy-duty vehicles such as full-traction trucks and agricultural vehicles, rail vehicles, mining machines, forestry machines, agricultural machines such as digging machines and push-on machines, loaders, ballasts, cranes, and other heavy-duty cargo. The lower its center of gravity, the better the stability and safety, the better the ability to transport super oversized and overweight cargo and pass overhead obstacles.
The 3 axle and 4 axle lowbed semi-trailers are generally used to transport heavy-duty vehicles such as full-traction trucks and agricultural vehicles, rail vehicles, mining machines, forestry machines, agricultural machines such as digging machines and push-on machines, loaders, ballasts, cranes, and other heavy-duty cargo. The lower the center of gravity, the better the stability and safety, the better the ability to transport super oversized and overweight cargo and pass overhead obstacles. The 3 axle and 4 axle lowbed semi-trailer is also widely used for various mechanical equipment, large objects, and highway construction, and transportation of various steel materials for equipment, large tanks, power station equipment and machines.
3 axle and 4 axle lowbed semi-trailers usually use concave beam type or well type frame, of which the front section of the frame is a gooseneck and the rear end of the gooseneck is connected to the semi-trailer. The kingpin in the front section of the gooseneck is connected to the traction saddle on the tractor tuck. The middle section is the cargo platform, which is the lowest part of the frame, and the rear end is the wheel frame including the wheels. When loading machinery and equipment onto the 3 axle or 4 alxe lowbed semi-trailer, the machinery and equipment are usually loaded from the rear end of the semi-trailer. The mechanical equipment is moved from the rear wheel frame or the wheels are removed, and then the special mechanical equipment is fixed on the semi-trailer.
The 3 axle and 4 axle lowbed semi-trailer can be categorized into flatbed type, four-beam type, and tire-exposed structure type. The main beam is straight or gooseneck. The frame is stepped and the longitudinal beam section is I-shaped, which has the characteristics of high rigidity and high strength. The main plane of the frame and cargo platform is low, which ensures the stability of transportation and is suitable for carrying all kinds of construction machinery, large equipment, and steel. From the perspective of axles, 3 axle and 4 axle lowbed trailer can be divided into three-axle balance type, two-axle balance type, and rigid suspension. A mass balance block is usually installed between the front and rear leaf springs, which can make the deflection of the front and rear leaf springs change in the same amount so that the front and rear axles are balanced in force.
3 axle and 4 axle lowbed semi trailer adopts advanced and flexible computer-aided design software. The frame bearing surface is designed according to user requirements to meet the transportation of various special goods.
There are two types of low-bed transporters: two-axle and three-axle. Both come with landing gears. They are generally below 13 meters. Trailers are divided into semi-trailers and full-trailers. A semi-trailer axle is placed behind the center of gravity of the vehicle, when the vehicle is evenly loaded, and a trailer equipped with a coupling device that can transmit horizontal or vertical forces to the vehicle lead. The front part of the pallet rests on the pallet of the cart.The load of the full trailer is fully borne by itself and is only connected with the tractor trucks by hooks. The tractor trucks only provide power to help the trailer overcome the frictional resistance of the road. The full-trailer can stand upright with its own tires with length generally about 6.5 meters. Semi-trailer trucks and low-bed trucks must have a water spray system before leaving the factory because in long-distance transportation, long-term braking will cause the wheels to heat up. Failure to cool the brakes will reduce the braking effect or even total braking failure. It may also reduce the service life of the wheels, axles, and tires.
The 3 axle and 4 axle semi-trailer frame is mainly composed of beam-welded I-beam, support beam, connecting beam, side beam, lock head, kingpin, panel, etc. The side beams are generally channel steel or bending parts. At present, most semi trailers use channel steel. There will be more side beams for light-weight hanging bending parts because the requirements for strength are not too large. The support beam is the through beam, most of which are now W beams. Channel steel above 10# is only used for heavy goods
Kingpin is an important component that connects the semi-trailer and the tractor tuck and bears the gravitational force of the vehicle, and is connected with the traction seat. It is usually forged from steel of chrome alloy structure. For different cargo tonnage, there are #50 kingpins and #90 kingpins. Generally speaking, the total weight of the trailer and the cargo is limited to 50 tons. If the weight of the trailer is less than 50 tons, the #50 pin will be used. If it’s 50 tons or more, then #90 will be used for insurance purposes.
The 3 axle or 4 axle semi-trailer suspension normally adopts non-independent steel plate stamping rigidity. The suspension consists of tandem leaf springs and suspension supports, which are used to support the load and reduce the impact of the dynamic load of the vehicle. Due to the different uses of special vehicles, there are also different requirements for the design of the suspension. There are four commonly used suspensions: tandem leaf spring balance suspension, single-point suspension, air suspension, and rigid suspension (one line and two axles).
The 3 axle and 4 axle semi trailer axle is connected to the frame through leaf springs and tie rods and suspension devices. It is used to support and transfer loads between the frame and the wheels. In China, some of the main semi trailer axle brands are FUWA, BPW, and so on. Among them, FUWA is the most popular.
The electrical system of the 3 axle and 4 axle semi-pull truck is composed of seven-core sockets, cables, air circuits, various lamps, etc. It is used for lighting, safety warning, air supply for brakes, and so on. Generally speaking, you can basically know the quality of the factory by looking at the regularity of the electrical wiring. You can know more about the bigger picture from such details.
Landing gear of the 3 axle and 4 axle semi-trailer is mainly used to support the trailer when it is disengaged. It is composed of different parts such as outriggers and connecting brackets. Some of the brands that produce quality landing gears are FUWA and JOST.
The 3 axle and 4 axle semi-trailer protection device is composed of side protection and rear protection to protect pedestrians and other vehicles from getting under the semi-trailer. It can actually helep with fuel efficiency if it is done well. It is called side skirt when it serves the purpose of reducing the wind resistance. This can be done in many other countries, but if it is made into a side skirt in China, it is called illegal remodeling and will be punished.
Other accessories on the 3 axle and 4 axle semi-trailer include tool boxes, spare tire racks, gantry racks, stakes, etc. There are also some small accessories such as rope tighteners, rope hooks and other highly functional accessories, which should be selected according to the type of goods trasported.
