2) Height of towing plate: 1180mm, 1210mm, 1230mm, 1250mm, 1300mm

3) Various suspension: 2 axle suspension, 3 axle suspension and 4 axle suspension

4) Leaf spring: 8 leaf, 9 leaf ,the quantity is optional

5) Leaf spring width: 90mm, 100mm, 120mm

6) Balance arm pin: 50, 60,70

7) Hanger: material Q235; thickness 8mm;10mm for option

8) Equalizer: thickness 8mm; 10mm for option

9) We can produce according to your samples, drawings

 Shandong Zhengyang Machinery Co.,Ltd is a professional manufacture in semi-trailer parts,

located in the famous trailer base ----Liangshan,Jining,Shandong province. 8000 square meters

workshop, over 200 professional workers,ISO9001:2000 certificate in product quality, neary 10 

years’ experiences in producing semi trailer parts, enjoying high reputation,I’m sure we could serve you well.

We are a professional manufacture of semi trailers and trailer parts, such as :

1. Axles (American and German, BPW and type, spoke axle, low loader, concave axle)

2. Suspension (bogie, spoke bogie, American suspension and German suspension)

3. Fifth wheel (2”and 3.5”)

4. King pin (2”and 3.5”, weldable and Bolton)

5. Landing gear (inboard gear and outboard gear)

6. Other components like twist container locks, screw locks, brake chamber, wheels and other 

components are available.

If any products meet your interest, please inform us, specific catalogue will be send at once. 

Hope to cooperate with you!