Polyurethane screen parts(Screen capping)

In modern screening operations, especially in mining, quarrying, and aggregate processing, polyurethane screen parts play an increasingly critical role. Among these components, screen capping is often overlooked but delivers significant functional benefits. It not only improves equipment performance but also extends the service life of screen panels and frames.

What Is Screen Capping?

Screen capping, also known as capping rubber or screen rail capping, is a protective cover made from durable polyurethane that fits over the steel rails or support bars of vibrating screen decks. It forms a cushioning interface between the screen panels and the deck rails, preventing metal-to-metal contact.

Why Choose Polyurethane for Screen Capping?

While rubber is traditionally used for screen capping, polyurethane (PU) has become the material of choice due to its superior performance in harsh industrial environments. Here are the main advantages:

1. Excellent Abrasion Resistance

Polyurethane offers significantly better wear resistance compared to rubber, making it ideal for handling abrasive materials like gravel, sand, and crushed ores. It reduces the frequency of replacements and lowers maintenance costs.

2. Extended Service Life

Thanks to its high tensile strength and impact resistance, polyurethane screen capping can withstand continuous vibration and mechanical stress. This ensures a longer operational lifespan and more stable performance over time.

3. Noise and Vibration Reduction

By cushioning the contact between the screen panels and the deck rails, polyurethane capping helps reduce vibration noise. This improves the working environment and reduces stress on the screening equipment.

4. Ease of Installation

Polyurethane screen capping is flexible, yet strong. It is easy to install on various types of screen decks, and custom profiles can be designed to fit your specific equipment.

Common Applications

Polyurethane screen capping is commonly used in:

Vibrating screen machines in mining and quarrying

Aggregate production plants

Sand and gravel operations

Coal processing facilities

It is compatible with various screen types, including modular panels, woven wire mesh, and tensioned screens.

Custom Solutions Available

At Yantai Zhengyuan Polyurethane Co., Ltd., we offer a wide range of polyurethane screen parts, including screen capping in various profiles and hardness options. Whether you need standard sizes or fully customized solutions, our engineering team is ready to help.

We can manufacture screen capping with:

Shore hardness from 70A to 95A

Various shapes: C-type, U-type, T-type, or as per drawing

Different colors and lengths available on request

Contact Us

If you're looking for a reliable solution to protect your screening equipment and reduce downtime, polyurethane screen capping is a cost-effective and high-performance choice.

Feel free to reach out to us for samples, technical specifications, or a customized quotation.