Semi Trailer Forging Fifth Wheel Manufacturers   

All types and models trailer suspension  with good quality and reasonable price

Product Description 

1. Making a selection
The D-value and the thickness of the welding plate are two considerations
In making a kingpin selection for a semi-trailer design. The actual D-value
Of the selected kingpin must be larger then the calculated D-value.
Then determine the thickness of the skid plate.
2. Kingpin Installation
Welding on a channel support for the 2 inch welded kingpin. Must be more than 110mm

Between welds.
3. Kingpin Operation
Operation of the semi-trailer will cause normal we are on the kingpin,
Due to abrasion. The following are the limits of wear allowable:
2"kingpin: A: ≥ 49mm; 3.5" kingpin: C≥ 86mm
B: ≥ 71mm D≥ 112mmb 

Product Pictures

Company  Information 

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

1. More than twelve years professional manufacturer experience
2. Be designed according to your requirements
3. CCC ISO9001 agreement
4. Small order can be accepted
5.12 month quality guarantee term
6. We accept 100% inspection, welcome to our factory at any time

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.

Sincerely welcome friends old and new to visit our factory and discuss business co-operation with us. We will repay our clients with better service and products all the time.

other products

Contact us 

          Liangshan Changzai Machinery Manufacturing Co.,Ltd.

              Tel:86-532-68979951                                      

              Skype:susan.yxl

              Trademanager:cn1512213712

              QQ:3254679798