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Semi Trailer King Pin
The kingpin of a semi-trailer is a metal standard component used in a semi-trailer to connect the tractor and the trailer. Also called traction pin. According to the shape, the traction pin can be divided into mushroom type, cross type 'I' type and so on.
Description
Product Introduction
The kingpin of a semi-trailer is a metal standard component used in a semi-trailer to connect the tractor and the trailer. Also called traction pin. According to the shape, the traction pin can be divided into mushroom type, cross type 'I' type and so on. According to the shape, it can be divided into A type and B type. According to the assembly method, it can be divided into welding type and assembly type. The processing materials generally use carbon steel and alloy steel.
Product Parameters (Specifications)
Model number | Specification | With traction board thickness | D value |
DY90A08 | 90(3.5") | 8 mm | 108KN |
DY90A10 | 90(3.5") | 10mm | 108KN |
DY90B08 | 90(3.5") | 8 mm | 240KN |
DY90B10 | 90(3.5") | 10mm | 240KN |
Product Features And Applications
The correct alloy selection and heat treatment of the product have achieved the best balance between hardness and impact resistance, and brittleness can be avoided even under low temperature conditions. Appropriate selection of alloys and careful control of the hardening process make the traction pin more wear-resistant.
Product Details Display

Production equipment and technological process
Simply put, the production of traction pins follows the following procedures:
1. Steel selection. Generally, chemically stable clean low-alloy steel is used as the material of choice for the traction pin.
2. Forging. Cold forging is generally used. Pay attention to the precise deformation of the material during the forging process. Before forging and during forging, attention should be paid to dimensional inspection, magnetic inspection and macroscopic embossing.
3. Product inspection and heat treatment.
After-sales service
Every product to the customer is a qualified and good product. The company will follow-up service closely, keep abreast of product usage, update product technology, improve product performance, and ensure delivery.
Professional consultation question and answer
The company has always followed the spirit of "quality starts with each screw" and the operating philosophy of "continuous innovation, sincere service". Innovation is the root of the company's growth. Continuous innovation allows every user to use it with peace of mind and peace of mind.
The company's latest news
The company has established a complete sales system and established overseas warehouses in many countries to facilitate customers to purchase good products.
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