Drag chains for metro systems

Drag chains for metro systems

Drag chains for metro systems


Drag chains are crucial components in metro systems, ensuring the smooth and efficient operation of various moving parts. In this article, we will explore the importance of drag chains in metro systems and examine their various applications and benefits.

1. Understanding Drag Chains

Drag chains, also known as cable carriers or energy chains, are mechanical devices used to protect and guide cables and hoses in dynamic applications. They are typically made of durable materials such as plastic or metal and are designed to withstand the rigorous demands of metro systems.

2. The Role of Drag Chains in Metro Systems

Drag chains play a vital role in ensuring the reliable and continuous operation of metro systems. They provide protection for cables and hoses from external factors such as dust, moisture, and mechanical stress. By guiding and organizing the cables, drag chains prevent tangling and minimize the risk of damage, leading to improved safety and reduced downtime.

3. Applications of Drag Chains in Metro Systems

3.1 Track Guidance

In metro systems, drag chains are used for track guidance, ensuring the smooth movement of trains along the tracks. The drag chains keep the cables and hoses in position, preventing interference with other components and maintaining the integrity of the electrical and pneumatic systems.

3.2 Door Systems

Drag chains are also utilized in door systems of metro trains. They enable the seamless operation of automatic doors, ensuring passengers’ safety and comfort. The drag chains protect the cables that power the door mechanisms, allowing for reliable and efficient opening and closing.

3.3 Control Systems

Drag chains are essential in the control systems of metro trains. They provide a secure and organized pathway for the cables that handle various control signals, enabling effective communication between different components. The use of drag chains in control systems enhances the overall efficiency and reliability of metro operations.

4. Benefits of Drag Chains in Metro Systems

4.1 Enhanced Cable Protection

Drag chains offer excellent cable protection, safeguarding them from potential damage caused by external factors such as abrasion, bending, and impact. This ensures the longevity and reliability of the cables, reducing the need for frequent maintenance and replacements.

4.2 Improved Safety

By preventing cable tangling and minimizing the risk of electrical or mechanical failures, drag chains contribute to enhanced safety in metro systems. They help prevent accidents and ensure the smooth operation of critical components, promoting passenger safety and system reliability.

4.3 Increased Efficiency

With their ability to organize and guide cables and hoses, drag chains optimize the overall performance of metro systems. By reducing friction and minimizing cable wear, drag chains enhance the efficiency of electrical and pneumatic systems, resulting in improved energy consumption and operational effectiveness.


In conclusion, drag chains are essential components in metro systems, providing protection, organization, and guidance for cables and hoses. Their versatile applications and numerous benefits make them indispensable for ensuring the smooth and reliable operation of metro trains. It is crucial for metro operators to invest in high-quality drag chains to enhance safety, efficiency, and overall system performance.

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Usage Scenario

Drag Chain Usage Scenario

Company Introduction

Our company is a leading player in the chain market in China. We offer a wide range of products, including drag chains, flexible chains, plastic drag chains, bush chains, plastic chains, tabletop chains, and multiflex chains. With 300 sets of various automatic CNC production equipment and automatic assembly equipment, we are dedicated to providing high-quality products, competitive prices, and excellent service to our customers.

For customized orders, we welcome customers to provide their specific requirements through drawings or samples. Our team is ready to assist in creating tailored solutions to meet individual needs.

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Author: Czh