The **CA3 rotary coupler** is a type of automatic railway coupler commonly used on freight wagon. This specialized coupler system is designed to rotate automatically during the operation of a railcar dumper (also known as a wagon tippler), ensuring that the coupler and its connections remain intact and undamaged throughout the unloading process.

### Key Features of the CA3 Rotary Coupler:

1. **Automatic Rotation**: The CA3 rotary coupler can automatically rotate 180 degrees when the freight car is tipped during unloading. This rotation prevents the coupler from twisting or breaking, which could otherwise occur due to the forces exerted during the tipping process.

2. **High Reliability**: The CA3 coupler is engineered to withstand the stresses involved in frequent tipping operations, ensuring it remains effective and safe over time. Its durability makes it suitable for heavy-duty applications in various industrial settings.

3. **Standardized Design**: The CA3 rotary coupler adheres to standardized specifications for railway couplers in China. This standardization facilitates easy maintenance and replacement, making it a reliable choice for widespread use in the railway industry.

By using the CA3 rotary coupler, freight trains can undergo unloading operations with railcar dumpers efficiently, without compromising the integrity of the coupling system. This enhances both operational efficiency and safety in the rail transport of bulk goods.

Hengtairail Equipment Co., Ltd (hereinafter referred to as “Hengtairail”) was established by Mr. Wei, in 1999. He was as a vehicle engineer in the China Railway Chengdu Bureau. A professional engineer team and high-efficiency sales team have been built at present.

Hengtairail is certified and operating to the ISO9001:2015 management system. Products meet technical requirements China Railway Test & Certification Centre (CRCC), Association of American Railroads (AAR), International Union of Railways (UIC), etc.

Hengtairail is a global supplier of rail vehicle components & systems. Including casting, forging, and machining products.

Specific products include:

· Wheelset: axle, wheel

· Bearing & axle box

· Spring & vibration control system: steel spring, rubber spring, air spring, leveling valve, shock absorber, and other truck components

· Coupler & draft gear device

· Braking system that meets UIC & AAR requirements

· Passenger train facilities & equipment: window, handrail, luggage rack, seat, HVAC system, toilet, gangway, plug door, interior products

· Locomotive parts

Based on the cooperation of many reliable manufacturers, Hengtairail has lots of advantages, such as flexible delivery time & payment terms, convenient after-sales service, etc. Under those favorable conditions, clients’ procurement costs and risks can be controlled effectively. It’s beneficial for clients to purchase transnational.

After more than 20 years of development, relying on high-quality products and professional services, Hengtairail establishes a complete supply chain system and long-term good business relationships with clients who come from more than 30 countries and regions.

Safety is the forever theme of public transport. Fast and big capacity of passengers is the particularities of rail transport. That makes us have a higher requirement for safety. Therefore, Hengtairail will continue to carry out the manufacturing process and quality guarantee schedule strictly, offer excellent products to meet clients' needs, and become a comprehensive supplier of rail vehicle components with core competitiveness.