1. HJ bogie & trailer axle beam, which has the advantages of small, high intensity, over loading capability and not easy to distort, is made of high intensity alloy plank, and it is once formed by 1200T oil manometer and connected by shielded arc welding.

2. HJ 24T, 28T, 32T and 36T heavy duty semi-trailer bogie suspension with high precision, which can ensure diagonal tolerance of two axle (L1-L2) less than or equal to 5mm, also can ensure distance of two axle (L3-L4) less than 3mm. It can be controled within 1.5mm if required.

3. HJ heavy duty semi-trailer bogie suspension use H62 pure brass bush and Mobil grease, work steadily and efficiently even in the extreme case.

4. Equalizer 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 torlerance less than or equal to 1mm.

5. Upper and lower spring seat welding: 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 within 0.5mm.

6.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 the axle and leaf spring is vertical.

7.Except for using small U bolt to fix leaf spring and axle, also fixed by four pins on the leaf spring pad and upper plate. Use specialized tool to ensure two axles parallel when assembly, ensure two axles parallel by the pin positioning even fully loaded vehicle on the strong impact. Ensure vehicle work under bearing stress evenly and reduce wear for tyre.

8. HJ type bolt is made of alloy material, which has the capability of high intensity, well stretch & bend intensity.

1. One of the biggest semi-trailer spare parts manufacturer in Asia.

Huajing covers an area of 250,000 square meters, has more than 850 staffs and elites. The annual production capacity can reach: 200,000pcs of trailer axle, 200,000sets of bogie and suspension, 1,000,000sets of brake shoes. Product contains full semi-trailer production series Germany and American Type Trailer Axle, Axle Beam, Brake Shoes Assembly, Mechanical Suspension, Air Suspension, Bogie Suspension, Landing Gear, Hub, Brake Drum and other spare parts.

2. High quality products

Huajing comes with more than 300 automatic equipments, including advanced CNC machine center, oil extrusion machine for 40T-800T, oil shearer, highly precision welding robot, auto double guns welding machine, and fully auto extrusion line etc., 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. Currently, our products have got international standard TS16949 certificate and ISO9001:2002 certificate.

3. Strict quality control

Huajing aims to make sure 100% of products are up to standard. It owns the independent testing center, comes with fatigue test, salt spray test, metallurgical analysis and 3 coordinates test etc., to make sure every procedure is under strict quality control from raw material to finished product. Huajing always bears the faith of "without quality without competitiveness" in mind.

4. Products are popular all around the world

With more than 10 years of development and innovation, Huajing has become the top trailer axle manufacturer in domestic market and our products are popular all around the world. From China to Europe and the Middle-East, as well as Africa and South America, there are over 60 countries and regions in the world use Huajing products.

TS16949 Certificate and ISO9001:2002 Certificate.

- Our company holds the notion all the time "first-class goods, reasonable price, perfect after-service";

- We always think of your demand ahead of time and never ignore every bit demand of clients during the service;

- Let our sincereness and specialized technique be always with you!!