high strength truck spare parts/leaf spring for semi trailer 

We are a big and professional manufacturer and we supply almost all semi-trailer parts.

Our advantages

1.Our own factory, reasonable price, Fast delivery

2.Small axle order quantity can be accepted

3.Professional service from order to shipping

4.OEM service and packaging designed service

5.Optional suspension  sizes are available

Leaf Spring Manufacturing Process:

1.Cutting of flat bar

2.Center hole punching / Drilling

3.End Heating process forming (hot & cold process)

4.Heat Treatment

5.Surface preparation: Shot peening / stress peening,then Painting

6.Assemble ad package

If you have any requirement,please tell us,we can produce according to drawings of customers.

Liangshan Changzai Machinery Manufacturing Co., Ltd. is located in Liangshan county, which is Chinese trailer(special use vehicle)production base. We are the factory professional design and manufacture the semi-trailer parts, including Axle series, Suspension System series, Leaf Spring Series, Landing Gear series, King Pin series, Fifth Wheel series, Air Brake Chamber series, Twist lock, etc.

Based o the concept of “customer needs is our eternal goal”, we have designed and developed hundreds series of new products in these years, We utilize the advanced technology to ensure cost efficiency for our customers and assist customers to develop products that are responsive to market demands. We have advanced production equipment, professional research and development team. Products are strict in accordance with the ISO9001 international quality system certification standards.

Our products pictutes

If you are intrested in any kind of our products or have any question,

don't hesitate to contact me by informations below:

Contact us 

          Liangshan Changzai Machinery Manufacturing Co.,Ltd.

              Tel:86-532-68979951                                      

                  Skype:susan.yxl

                 Trademanager:cn1512213712

                  QQ:3254679798