Fifth Wheel Lock Jaw

Material:40MnB

CONTACT US Jiangsu Nanyang Chukyo Technology Co., Ltd.

Technical Characteristics

The fifth wheel lock jaw, a critical component in the coupling mechanism of heavy-duty trucks and trailers, serves as the linchpin in ensuring a secure and reliable connection between the tractor and trailer units. This specialized mechanism is fundamental to the fifth wheel assembly, providing the essential functionality that allows for the controlled coupling and uncoupling of the truck and trailer. Semitrailer tractors and truck tractor accessories the fifth wheel lock jaw's design, materials, and precision engineering play a pivotal role in the safety, stability, and overall efficiency of commercial vehicles engaged in long-haul transportation.

Situated at the heart of the fifth wheel assembly, the lock jaw is a robust and precisely engineered mechanism responsible for gripping the kingpin on the trailer. The kingpin is the protruding metal pin on the front of the trailer that engages with the fifth wheel assembly on the tractor. The lock jaw's primary function is to securely grasp the kingpin during coupling and maintain a steadfast connection between the tractor and trailer while in motion.

One of the defining features of the fifth wheel lock jaw is its locking and release mechanism. When the trailer is positioned over the fifth wheel on the tractor, the lock jaw is designed to automatically engage and securely envelop the kingpin. This automatic locking ensures that the connection is firmly established, preventing accidental uncoupling during travel. Conversely, when the driver initiates the uncoupling process, the lock jaw is designed to release the kingpin smoothly, allowing for the separation of the tractor and trailer.

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About Us
Jiangsu Nanyang Chukyo Technology Co., Ltd.
Jiangsu Nanyang Chukyo Technology Co., Ltd.
Jiangsu Nanyang Chukyo Technology Co., Ltd., formerly known as Shanghai Jiao Tong University Zhongjing Forging Co., Ltd., was established on October 18, 2017. In April 2019, a new production line was put into operation, and in April 2020, the company completed its relocation from Shanghai to Jiangsu. With the establishment of six production lines, the company leverages the triple brand advantages of Shanghai Jiao Tong University, Jiao Tong Zhongjing, and Nanyang Zhongjing. With the support of advanced high-tech forging technology from Shanghai Jiao Tong University's forging profession, the company has experienced stable development for over thirty years. Currently, the company is a member of the China Forging Association. Custom 40MnB Fifth Wheel Lock Jaw Forging Parts Factory.
In 2017, the company officially settled in Daitou Town, Liyang City, Jiangsu Province. With an area of 64 acres and a factory space of nearly 16,000 square meters, the company currently employs 200 people. It possesses one 2,500-ton, three 1,600-ton, and one 1,000-ton hot die forging press lines, with mold technicians utilizing advanced CAD/CAM CNC equipment and manufacturing technology. The main products include forged parts for the automotive industry, construction machinery industry, and industrial instrumentation sector, with materials ranging from carbon steel and alloy steel to stainless steel. The annual production capacity of forged parts reaches 20,000 tons. We are 40MnB Fifth Wheel Lock Jaw Manufacturers and Suppliers in China.
With a strong foundation and expertise in the industry, Jiangsu Nanyang Chukyo Technology Co., Ltd. is committed to providing high-quality forging products that meet the diverse needs of various industries.
Certificate Of Honor
  • ISO14001 2015 Certificate
  • ISO45001 2018 Certificate
  • NYCT IATF16949
  • NYCT ISO9001
  • PED Certificate
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