Company Profile

"Longkou Vehicle Oil Pipe Co., Ltd. is located in the beautiful and rich Jiaodong Peninsula ---- Longkou City, Shandong Province. A well-known auto parts industry processing base in the country.

The company is mainly committed to the research and development and production of fuel system, lubrication system and cooling system accessories for automobiles, construction machinery and marine generator sets. Now it has formed several series of stamping, welding, bending, tightening, machining, etc. Products and mature production and processing technology systems, with an annual output of more than 90 million pieces of various oil pipe accessories, with an output value of 160 million.

As an enterprise with large production scale, complete varieties, high technical level, advanced equipment and high market share in the domestic oil pipe industry, the company has always adhered to the road of technological innovation, and adopted new materials, new technologies and new processes in the first batch of domestic companies in strict accordance with international standards. Standard manufactured product. Since its establishment in 1989, in the course of more than 20 years of development, with advanced technology, modern equipment, strict management and good reputation, it has provided customers with high-quality products and excellent services, and has won the praise of all walks of life. Support and recognition enable the company to continue to grow and develop.

The company now covers an area of 100,000 square meters, with a construction area of 54,000 square meters. With fixed assets of 140 million yuan and working capital of 52.8 million yuan, it has laid a solid foundation for the company's subsequent development. In order to meet the needs of the rapid development of the automobile industry, the company has introduced more than 120 sets of advanced production equipment and testing equipment from all over the world. Among them, the "PS1149" internal surface hardening equipment was introduced from Germany; the "ITP" three-coordinate measuring instrument was introduced from the UK; the automatic pipe fitting crimping machine was introduced from Finland Botnia; the nut spot welding machine was imported from Japan's Panasonic; "EF30-1, EF30-3, EF50-1" end processing machines, more than 60 sets of "CNC18-50" automatic pipe bending machines with a bendable steel pipe diameter range of 4mm-65mm; purchased oil pipe assembly from Shanghai for internal and external surface cleaning , special equipment for drying and oiling, and mesh-belt gas-protected continuous brazing furnace; purchase automatic air-tight testing equipment for pipelines, which reduces the risk of traditional manual air-tight testing; the company's 100,000-level dust-free purification workshop was established in 2013 Already built and put into use
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The high-pressure oil pipe assembly produced by the company is made of the world's advanced German ThyssenKnupp imported high-pressure seamless steel pipe Q-grade pipe, which can withstand a pressure of 100-250Mpa, and the material is st52.4, DSG1600, DSG1800, CRG890, respectively. Euro III (3) to Euro V (5) engines have different pressure requirements for high-pressure oil pipes; the tolerance zone of the inner and outer diameters of high-pressure seamless steel pipes is narrow, the inner surface is smooth and flat, and it has high fatigue resistance under high-frequency pulse working conditions. The pressure drop in the process in the pipe is small, which is beneficial to the pressure wave transmission of the fuel pipe. The flow rate to each cylinder of the engine is small, the oil quantity is uniform, and the consistency is good, which effectively improves the working stability of the engine and is conducive to meeting the emission standards.

The company has a 100,000-level dust-free purification workshop and a special automatic assembly line for cleaning, drying, and oiling the inner and outer surfaces, ensuring the cleanliness of the inner cavity of the oil pipe; the use of the automatic pipe bending machine greatly improves the pipe bending efficiency and product quality. , Each pipeline component is calibrated one by one on the special inspection tool that simulates the actual assembly of the engine, ensuring the stability and consistency of the product tube type; all DSG1600, DSG1800, CRG890 pipes imported from Germany must undergo eddy current flaw detection one by one, It prevents the steel pipe raw materials with quality defects on the surface from flowing into the production process, and ensures the stability of the pipe quality. By extruding and hardening the inner surface of the high-pressure oil pipe assembly, the pressure bearing capacity of the high-pressure oil pipe assembly is increased by 30% to 50%. The anti-fatigue strength is increased by 5~10 times. Advanced equipment and technology ensure the quality of the company's products, which fully meet the technical indicators of high-pressure oil pipe assemblies for Euro III and Euro V models, making the company always in the leading position in the industry. "