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The principle of the air suspension is to change the height of the vehicle by using an air compressor to form compressed air and sending the compressed air to the air chamber of the spring and the damper. A vehicle height sensor is arranged in the vicinity of the front wheel and the rear wheel. According to the output signal of the vehicle height sensor, the microcomputer determines the change of the height of the vehicle body, and then controls the compressor and the exhaust valve to compress or elongate the spring, thereby reducing The effect of the vibration. The air suspension gives the car more spirituality. When you are driving at high speed, the suspension can be hardened to improve the stability of the car body. When driving on low-speed uneven roads for a long time, the control unit will soften the suspension to improve the comfort of the car.

Modle | H | Axle Load |
LHGKA13/380 | 380mm | 13T |
LHGKA13/405 | 405mm | 13T |
LHGKA13/430 | 430mm | 13T |
LHGKA13/480 | 480mm | 13T |

Generally speaking, the contents of the air suspension control include the height of the vehicle body, the damping force of the damper, and the spring elasticity coefficient:
1. Control of the height of the car: substandard, elevated and only the rear wheel is raised;
2. The damping force of the damper is controlled by the third gear of low, medium and high;
3. The elastic coefficient of the air spring is divided into two parts: soft and hard.
Air suspension has an irreplaceable advantage over the conventional suspension. Therefore, with the popularization and improvement of this technology, it will inevitably be more widely used in the automotive industry in the future.

3. Awakening state. When the air suspension system is awakened by the remote control key, the door switch or the trunk lid switch, the system checks the height of the vehicle through the body level sensor. If the height of the car is below a certain height, the tank will provide pressure to raise the car to normal height. At the same time, the air suspension can adjust the softness and hardness of the shock absorber, including soft state, normal and hard state (also marked as comfortable, normal, sports, etc.), the driver can use the control button inside the car control..

semi-Trailer suspension type
Leaf spring suspension
The leaf spring suspension (referred to as the leaf spring suspension) is divided into a small piece of variable section steel plate suspension and an equal section of multiple leaf spring suspension. At present, more than 95% of the heavy-duty suspension systems in China are non-independent suspensions with leaf springs as elastic elements and as guiding devices. The main advantages are simple structure, easy manufacture, convenient maintenance, mature technology and reliable operation.
Air suspension
The air suspension system uses an air spring as an elastic element and air as an elastic medium. In a sealed container, compressed air (pressure is 0.5~) is used, and the compressibility of the gas is utilized to achieve its elastic action. This spring has variable stiffness and desirable elastic properties.
At present, there are two main types of air suspension control modes, one is manual adjustment using a mechanical height valve. The other is Electronic Control (ECAS), which greatly improves the performance of the traditional air suspension system, improving the comfort of the suspension and the sensitivity of the reaction.
Rubber suspension
The rubber suspension is a rubber spring as an elastic element. Due to the variable stiffness of the rubber spring, the entire suspension has a strong load carrying capacity. The rubber suspension has advantages over the conventional steel plate suspension in terms of load bearing capacity and reliability, and can adapt to the harsh working conditions such as mining operations.
The details of the air suspension

Name: Suspension front branch
Original: China
The front branch of the suspension is the head of a suspension, which is the comparative large part of a suspension.

Name: Suspension middle branch
Original: China
The suspension middle branch is an accessory for connecting two leaf springs. There are two interfaces.

Name: leaf spring
Original: China
A plate spring made up of not less than one piece of spring steel superposed.Leaf springs are commonly used in wheeled vehicle suspensions, originally called laminate or bracket springs, sometimes referred to as semi-elliptical springs or trolley springs, and are one of the oldest spring forms dating back to the Middle Ages.

Name: Suspension back branch
Original:China
The back branch of the suspension is the end of a suspension, which is the comparative small part of a suspension.


Shandong Longheng Axle Manufacturing Co., Ltd. is a professional (truck, Trailer & Engineering Vehicle) axle and chassis parts manufacturers. Always adhere to the "people-oriented, quality first, independent innovation, continuous improvement, technology leading and development" policy. Is identified as specializing in the production of trailers, suspension, axle innovative enterprises. The company has strong technical force, sophisticated manufacturing equipment, professional production team, for product innovation, research and development, quality assurance provides a solid backing. We strive for innovation and development, quality of survival, reputation as the basis, price competitiveness of the business philosophy, we are trying to satisfy all kinds of requirement from our customer.
Company to strengthen internal management, improve product quality and service level, the company has always been adhering to continuous improvement, the pursuit of customer satisfaction for the purpose, sincerely hope that friends at home and abroad to cooperate, create brilliance

Wheel hub is packed in highly elastic pearl cotton, prevent collisions during transport. Bolts and cap has protective cover belongs to itself.Hubs are wrapped by stretch film to prevent damage.

All the product will be full tested before shipment. Professional operation instruction of the machine.one-year warranty provided , provide the consumable parts at cost price after the warranty period.24-hour technical support by emails, calling or videos.
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