Train Coupler For Sale
1.Material:42CrMo
2.Machining accuracy:
Excircle: ±0.01mm
3.Mold opening cycle:About 45days
4.Craft: Forging
5.Advantages:
Our strict process inspection ensures every product meets defect-free standards.
Streamlined one-stop processing delivers efficiency and cost savings.
From standard to custom, our wide product range solves all your needs.
Product Introduction:
As a key core element in the transmission systems of railway locomotives and rolling stock, couplings serve to connect different rotating components. They transmit torque through either flexible or rigid connections—this not only allows for efficient power transfer, but also helps absorb vibrations and mitigate impact forces. Functioning as crucial "power links," couplings play an essential role in guaranteeing the smooth operation of trains. They enable stable torque transmission, ensuring that traction power is smoothly delivered from the motor to the wheel sets, which in turn drives the train forward or supports effective braking.
Product Advantages:
Couplings can reliably transmit the torque and rotational speed produced by the power unit of locomotives (or EMUs) to parts such as wheel sets and transmission gears, ensuring that power is efficiently converted into the train’s traction. Whether designed with rigid or elastic connections, their structure helps reduce energy loss during power transfer. This is especially critical for heavy-haul freight trains and high-speed EMUs: couplings allow these trains to sustain steady power output, thus preserving the trains’ traction performance under challenging operating scenarios like ascending gradients and acceleration. In addition to torque transmission, couplings can offset shaft misalignments via their own elastic deformation or structural compensation functions, which in turn protects the related equipment components. Moreover, they help absorb shocks and mitigate vibrations, ultimately improving the smoothness of the train’s operation.
Production Process:
Raw material inspection→Cutting→Forging→Normalizing→Rough turning→Rough milling→UT→Quenched and tempered→Shot peening→MT→Finished turning→Drilling and Tapping→CMM/GMM→Cleaning packaging
Packaging And Shipping:
Our professional team follows a strict, high-standard management process for each order. Prior to shipment, every product is thoroughly cleaned, clearly labeled, and treated with effective rust prevention. After these procedures, a complete visual inspection is carried out to ensure compliance with top-quality standards. Lastly, we carefully package the products and store them in our well-structured warehouse, ensuring they are prepared for prompt delivery.
Company Strength:
The company has successfully earned certifications for the ISO 9001 Quality Management System, ISO 14001 Environmental Management System, and ISO 45001 Occupational Health and Safety Management System—all issued by TÜV Rheinland, a globally acclaimed certification and quality assurance body. This milestone not only demonstrates the company’s strict compliance with international standards in quality control, environmental protection, and workplace safety, but also highlights its dedication to establishing a systematic, high-standard operational structure.
In addition to these esteemed certifications, the company’s outstanding management capabilities have won broad recognition from both global industry leaders and domestic market regulators. Its consistent focus on service quality, product dependability, and sustainable development has resulted in a range of notable awards, such as "Excellent Supplier" (an acknowledgment of its stable cooperation and customer-focused strategy) and "Top Quality Award" (a tribute to its strict quality supervision throughout the production and delivery process). Together, these honors reinforce the company’s status as a reliable, high-performing entity in the industry, proving its capacity to meet and even surpass the expectations of partners and stakeholders around the world.







