BPW type HJ bogie suspension

High quality, Reliability, Economy.

Bogie suspension systems transporting robust goods under harsh conditions.

Product feature:

HJ bogie with high precision, which can ensure diagonal tolerance of two axles (L1-L2) less than or equal to 5mm, also can ensure it less than or equal 3mm if there are special requirements;

High precision guaranteed by stamping:

Adopt stamping process on the installation plate to ensure the distance of housing at 0.5mm. (as shown below)

Forging parts instead of casting:

Upper and lower spring seat use qualified forging material (as shown below).Interior metal is more compacting, long service life and high yield strength. (Comparative statement for mechanical properties: forging and casting)

Top brand spare parts:

HJ bogie equipped with WanXiang brand QC bearing, high grade H62 pure brass bush and Mobil grease, which can work steadily and efficiently even in extreme cases.

Equalizing beam welding:

There are special requirement to machine a groove on the oil seal seat and use specialized tools to press the oil seal seat in order to ensure the distance tolerance less than or equal to 1mm.( as shown on the drawing )

New design to enhance the quality

In order for the trailer to work more stable under harsh conditions, HJ welds two pcs of 10mm reinforced plates inside of the bogie.

Upper and lower spring seat welding process

Welding the plate first and then mill to ensure parallelism tolerance less than or equal to 0.1mm; use specialized tool to ensure the distance tolerance of seats s within 0.5mm.

Leaf spring technology process

On the process of positioning four pins, the key is to ensure the position of center hole of leaf spring and pin hole. We use drilling jig for leaf spring based on the center hole of leaf spring, and that three holes are machined at the same time to ensure the three holes on the same line; reduce the distance tolerance of pin hole between center hole to ensure that the axle and leaf spring are vertical.

Assembly technology

We adopt our special technology: other then using small u bolt to fix the leaf spring and axle, we also fix them by the four pins on the leaf spring pad and upper plate (shown as below).

Use specialized tool to ensure two axles parallel when assembly, ensure two axles parallel by the pin positioning even the fully loaded vehicle on strong impact. Ensure vehicle work under bearing stress evenly and reduce the wear for the tyre.

Most domestic company use small u bolt to fix only but not using the positioning on the four pins .It will be over proof between the axle and leaf spring when vehicle in operation without four pin positioning. The two axles will not be parallel thus will cause uneven on the trailer, which will make the tyre wear.

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Huajing established in 2002, one of the biggest semi-trailer spare parts manufacturer in Asia,is professional in the production of semi-trailer axle assembly, mechanical suspension,and the landing gear, composed by Guangzhou Huajing Machine Manufacture Co.,Ltd and Guangzhou Huajing AUTO Spare parts Manufacture Co.,Ltd.

Which covers an area of 250,000square meters conisted more than 750 staff and elite. Company production Craft covers the forging, casting, welding, machining, punching, heat treatment, extrusion, intermediate frequency treatment, electronic painting, surface treatment, mold design etc. With 10 years development and innovation, Huajing has becomen the top axle manufacturer in domestic market.

Huangjing come with more than 300 automatic equipment, including advanced CNC  machine  for 40T to 800T, oil shearer, highly precision welding robot, auto double guns welding machine,and fully auto extrusion line.which result in the top automatic production line in the industry, the key parts are under controlled with the PLC equipment according to the international standards to ensure stable quality and high interchangeability.

With the innovation of the fourth of production technology in year of 2008, the fully automatically punching production line of one piece axle(American Series) begins to mass production, marked the crucial in the industry, which guarantee the quality for the American type axle.

Huajing insist on "Talent is the fundamental business survival", and HJ has a team of more than 750 talented people, in which cover over 50 percent have college diplomas. There are about 35 people in the professional R&D team and most of them have medium or higher major qualification. With high experience, R&D team can  explore the new product efficiently , Also optimize design and develop in accordance with customer requirement.

Huajing has full semi-trailer production series Germany and American type axle,axle beam, brake shoes assembly,Mechanical suspension, Air suspension, Bogie,Hub, brake drum and the other spare parts. The annual production capacity can reach to axle-200,000/pcs, bogie and suspension-20,000/sets, brake shoes-100,000.Moreover, Guangzhou Huajing Auto Spare Parts Manufacture Co.,Ltd. located in Fogang begin the production in 2014, which can meet the increasing order demand and ensure the prompt delivery time.

Huajing demands on the quality product, and insist "without quality without Competitiveness". Currently, the QC department have reached to 40 talent staffs,

Every procedure is under stric quality control from raw material to finished product, following the principle of "warehouse without defect material, every production is qualified", Huajing aims to make sure 100% of products are up to standard. Currently, Huajing owns the independent testing center, comes with fatigue test, salt spray test, metallurgical analysis and 3 coordinates test etc.