Understanding Pulley Lagging

Pulley lagging is a critical component that significantly impacts the efficiency and longevity of conveyor systems. It involves the process of applying a protective layer of rubber or other materials to the surface of conveyor pulleys.

This layer serves multiple purposes, including:

• Increased Friction: Lagging enhances the friction between the belt and the pulley, preventing slippage and ensuring smooth operation, this optimises efficiency.
• Reduced Belt Wear: By distributing the load more evenly, lagging minimises belt damage and extends its lifespan – meaning less shutdowns and less money spent on labour.
• Noise Reduction: The cushioning effect of lagging helps to reduce noise levels.
• Protection Against Corrosion: Lagging can provide a protective barrier against corrosion, which is particularly important in many mining applications.

Types of Conveyor Belt Pulley Lagging

The choice of lagging material depends on various factors, all of which can be determined by one of TSGlobal’s in-house experts. These factors include: type of belt, the conveyed material, and the operating conditions.

Some common types of lagging include:

1. Rubber Lagging: Offers excellent friction and durability. Suitable for many general-purpose applications. Available in various hardness grades to accommodate different load requirements.
2. Polyurethane Lagging: Highly resistant to abrasion and impact. Ideal for harsh environments and heavy-duty applications. Offers good resistance to oils, grease, and chemicals.
3. Ceramic Lagging: Extremely durable and heat-resistant. Suitable for high-temperature applications. Provides excellent abrasion resistance.
4. Composite Lagging: Combines the properties of different materials for specific applications. Can be customised to meet specific requirements.

Factors to Consider When Selecting Conveyor Belt Pulley Lagging

When selecting the appropriate lagging material, consider the following factors:

• Belt Type: The type of belt, such as rubber, PVC, or steel cord, will influence the required friction and durability of the lagging.
• Conveyed Material: The properties of the conveyed material are important to consider. Things like size, weight, and abrasiveness of the bulk material will determine the appropriate material to use.
• Operating Environment: Factors like temperature, humidity, and exposure to chemicals will impact the choice of lagging material.
• Belt Speed and Tension: The speed and tension of the belt will affect the wear and tear on the pulley and the required level of friction.
• Pulley Diameter: The diameter of the pulley will influence the type and thickness of the lagging.

Proper Installation and Maintenance

Proper installation of conveyor belt pulley lagging is essential for optimal performance. It should be applied evenly and securely to the pulley surface. Regular maintenance, including inspection and replacement of worn lagging, is crucial to prevent downtime and ensure the long-term efficiency of the conveyor system.

By understanding the importance of conveyor belt pulley lagging and selecting the right material for your specific application, you can significantly improve the performance and lifespan of your conveyor system.

TSGlobal’s teams of service and sales technicians are capable to identify, supply, install and maintain any pulley lagging as required at your site. Regardless of location, our teams across Australia will ensure your site’s conveyors are operating at maximum efficiency for their workable life.