[Dandong Huanghai Special Vehicle] Equipped with Shanghai Songjiang Group Air Spring

[Dandong Huanghai Special Vehicle] Equipped with Shanghai Songjiang Group Air Spring

The official website of Shanghai Songjiang Group will introduce to you: [Dandong Huanghai Special Vehicle] Equipped with Shanghai Songjiang Group Air Spring information, Songjiang Group supplies various air spring shock absorber products for many domestic automobile factories.

1. Introduction of Dandong Huanghai Special Depot:

Dandong Huanghai Special Purpose Vehicle Co., Ltd. is a wholly-owned subsidiary of Liaoning Shuguang Automobile Group Co., Ltd. It is a company specializing in the design, development, production, sales and service of special purpose vehicles and semi-trailers. The company is located in China’s largest border city – Dandong, adjacent to the Democratic People’s Republic of Korea. It is the largest vehicle production and car modification enterprise on the North Korean border. The predecessor of the company was the military vehicle repair shop of the General Logistics Department of the Chinese People’s Volunteer Army in 1951. Adhering to the spirit of “military product quality, historical inheritance”, it is still the designated unit for the production of military vehicles, and has made great contributions to the logistics support of Chinese troops. It is one of the earliest manufacturers of special purpose vehicles in China. Founded in November 2006, it is located at No. 8 Gucheng Road, Yuanbao District, Dandong City, Liaoning Province, China. The factory has 220 employees and covers an area of ​​about 200 acres. The first phase of the factory building has a construction area of ​​13,155 square meters, and the second phase of the factory building has a construction area of ​​13,296 square meters. The planned annual output is 3,000 special vehicles of various types. The production began in January 2007. The company’s main products are supporting the production of a series of oil trucks, refueling trucks and various types of special operation vehicles that meet the needs of the civilian market. The company has a long history in the production of military products. During the War to Resist U.S. Aggression and Aid Korea, it was the auto repair shop of the Logistics Department of the Chinese People’s Volunteer Army, which was responsible for the repair and modification of military vehicles. Since the early 1960s, the production of oil tankers (transportation) has been carried out. Since 1962, representatives of the permanent army have been in the factory to supervise, inspect and accept military products. It is the earliest development and production of oil tankers in China. one of the manufacturers. It is one of the designated production plants for military vehicles of the General Armament Department, and has certain advantages in the same industry for the production of oil (transport) vehicles in the country. For more than 40 years, the company has successively produced 14 types, more than 30,000 fuel trucks, dump trucks, auto repair engineering vehicles, power generation trailers and other products for the army, with scientific product structure, stable product quality and good after-sales service. Well received by the troops. Among them, the DD5100GJY refueling truck has won the third prize for scientific and technological achievements of the Liaoning Provincial Machinery Committee, and the DD5090GJY refueling truck has won the title of high-quality product of the Ministry of Machinery Industry and Liaoning Province.

2. [Dandong Huanghai Special Vehicle] Air Spring Contract Information

3. [Dandong Huanghai Special Vehicle] Air Spring Products Information

The working principle of the air spring is to fill the airtight pressure cylinder with inert gas or oil and gas mixture, so that the pressure in the cavity is several times or tens of times higher than the atmospheric pressure, and the cross-sectional area of ​​the piston rod is smaller than that of the piston so that the The resulting pressure difference achieves the movement of the piston rod.

Due to the fundamental difference in principle, air springs have significant advantages over ordinary springs: relatively slow speed, little change in dynamic force (generally within 1:1.2), and easy control; the disadvantage is that the relative volume is not as small as the coil spring, and the cost is high , The lifespan is relatively short.

When the air spring is working, the inner cavity is filled with compressed air (working pressure ≤ 0.7MPa) to form a compressed air column. With the increase of the vibration load, the height of the spring decreases, the volume of the inner cavity decreases, the stiffness of the spring increases, and the effective bearing area of ​​the inner cavity air column increases, and the bearing capacity of the spring increases. When the vibration load decreases, the height of the spring increases, the volume of the inner cavity increases, the stiffness of the spring decreases, the effective bearing area of ​​the inner cavity air column decreases, and the bearing capacity of the spring decreases. In this way, within the effective stroke of the air spring, the height, inner cavity volume and bearing capacity of the air spring can be smoothly and flexibly transmitted with the increase and decrease of the vibration load.

The above contract information of [Dandong Huanghai Special Vehicle project ] comes from the official website of Shanghai Songjiang Group. For more information, please click: https://www.ansi-rubber-bellow.com/products/project-cases/

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