Train Coupler kunckle

Product Advantages and Features 

CA-3 coupler, coupler yoke and Hook tail box wedge shall ensure that the structure and size can be used to GOST 3475 specified in railway locomotive. Gost standard coupler is the leading product for heavy duty railway wagons in the worldwide. Our CA-3 couplers are furnished with Hook, Hook lock, Hook lock holder, anti-creep mechanism design, Lock and lock pin and tempered casting steel, which are high strength structure, reliable safety performance. It obtains obvious superiority in improving the safety and reliability of transportation and the efficiency of train formation..

Product Quality Assurance

We have advanced computer aided design (CAD), computer aided manufacturing (CAM), auxiliary management system and complete manufacturing & testing equipments, 3 D laser scanner was introduced for the product testing too. At the same time, we introduced a high degree of automation professional line for castings flow-line production, which ensures production process, quality, quantity, and time of delivery. This production line was commended by GOST certification authority.

We have a complete series of smelting equipments, teeming equipments, molding equipments, sand shakeout equipments, heat treatment equipments, machining equipments, and assembly lines, and testing equipments. Smelting adopts duplex process with 20Tons high power eccentric bottom basic electric furnace and 25Tons LF ladle refining furnace. Professional testing equipments include spectrometer, metalloscope, material testing machine, impact testing machine, foundry sands testing equipments, X-ray flaw detector, magnetic particle detectors, etc.

Our coupler conforms to GOST 22703 standard and GOST 9773. We execute strictly the quality system according to GOST 4543 certificate, and environment system according to ISO14001.

Our quality guarantee for coupler is 5 years, and the service life of coupler knuckle is up to 600000 times.

Product Applications

GOST standard coupler as one leading product, is widely used in Russia and other countries, such as Canada, Brazil, South Africa, Australia, etc. It is mainly installed on railway wagons for heavy duty transportation. We have sold more than 60000 pieces of GOST standard coupler.

Customers Feedback

The feedback from our customers is good. Coupler service life and abrasion performance are approved by the market. At the same time, we will continue to improve the product according to the requirements of our customer and the market, and make our product obtain more advantage on quality and design. Because of our constant upgrading product quality and service, we have established the long term cooperation with many customers.

  Other types of AAR standard coupler

CA-3 Coupler and Coupler Parts

Coupler Yoke

Manufacturing Process

Packing Methods

Standard packing for bulk order

Wooden case packing for sample

Other packing method according to customer's requirements

Besides of complete CA-3 coupler, we would like to supply its parts, such as lock, lock holder,  

lock lifter, lock lifter pin, etc. 

If you are interested and want to know details, please feel free to contact us.