High-Quality King Pin for Semi-Trailer 50mm (2″) and 90mm (3.5″)

The King Pin is a critical component for connecting a semi-trailer to a tractor (such as a truck). It is a cylindrical metal pin typically mounted in the saddle located beneath the front end of the trailer. When connected, the King Pin fits into the fifth wheel device on the tractor, enabling the trailer to safely attach to the tractor while allowing for a degree of rotation and swinging relative to the tractor. Striving for excellence and safety, Kales’ King Pin stands out among trailer connection solutions due to its unique design and unparalleled quality. Our King Pin not only meets the strictest safety standards but also excels in rust resistance and wear resistance, providing solid assurance for every transport.

High Rust Resistance and Wear Resistance

Crafted from high-quality, high-strength, and tough alloy steel, the Kales King Pin features excellent heat resistance, wear resistance, and corrosion resistance. Made through cold forging technology, each product is designed to withstand extreme conditions, maintaining its durability in all weather. This material choice extends product life, reduces maintenance costs, and increases operational efficiency.

Strict Manufacturing Standards

We adhere strictly to international standards GB/T 4606-2006/ISO 337:1981 and GB/T 4607-2006/ISO 4086:2001 throughout production to ensure that every item leaving our factory meets the highest quality requirements. From raw material selection to final inspection, each step is rigorously controlled to provide you with the most reliable products.

Heavy-Duty Special Design

Custom-designed for trailers, the Kales King Pin provides stable and dependable towing power, effectively preventing risks of detachment or breakage for absolute safety during transit. Whether for long-distance travel or challenging road conditions, it is a trustworthy partner.

Diverse Model Selection

To cater to different customer needs, Kales offers various shapes and sizes of King Pins, including mushroom-shaped, cross-shaped, double-spoon, “L”-shaped models, available in both welded and assembled mounting options. Specifically, for semi-trailers with a maximum total weight not exceeding 40 tons, we offer the No.50 drawbar pin; for heavy-duty semi-trailers with a gross weight over 40 tons but not exceeding 100 tons, the No.90 drawbar pin, made from 90-millimeter diameter chromium alloy, further enhances strength and durability.

At Kales, we are committed to delivering products and services that exceed expectations. Choosing Kales King Pin means choosing peace of mind and a future of safer, more efficient logistics transportation. Let us work together to create a new era of logistics!