Rubber pulley lagging is the process of bonding a layer of rubber to the conveyor pulley’s shell. Currently, there are two main rubber lagging techniques used today and these are cold bonding and hot vulcanizing. We’ll go over what’s involved in each process to help you determine the best rubber lagging method for your applications.
Cold bonding--You can use our cold Adhesive SA3000, Metal Primer SA3600, Cleaning Solvent SA3500
Cold bonding is the process of gluing strips of rubber lagging straight onto the steel pulley. This technique has been used for many years due to its convenience and cost-efficiency. Cold bonding is less involved compared to hot vulcanizing and can be performed on-site when sudden lagging problems arise.
If done properly, cold bonding can provide satisfactory results for light to medium pulley applications. However, cold bonding doesn’t offer 100% rubber tear adhesion which means service life is somewhat reduced.
Advantages of cold bonding
One of the main benefits of cold bonding is low application cost. Thanks to a simplified gluing process, cold bonding is easier to perform which helps keep the costs down and ensures shorter lead times compared to hot vulcanizing.
Another key benefit of cold bonding is that you can perform emergency lagging repairs without having to remove the pulley from the conveyor. Convenience and affordability are what makes cold bonding ideal for simple rubber pulley lagging.
Hot vulcanizing
Hot vulcanizing is generally considered to be the superior rubber lagging technique and for good reason. Because the process eliminates any gaps in the lagging, hot vulcanizing offers fewer modes of failure. This provides better overall performance and service life compared to the conventional cold bonding method.
Advantages of hot vulcanizing
One advantage of hot vulcanizing is that the bond strength between the rubber and pulley shell is stronger compared to cold bonding. In addition to that, hot vulcanizing does not create joins in the lagging which eliminates the risks of shell corrosion and prevents the rubber from separating from the pulley.
A process for installing ceramic lagging using hot vulcanizing has been developed. This addresses any issues with lagging to shell bonding, resulting in a stronger and more reliable adhesion not only between the lagging and the pulley but also between the individual lagging strips. Hot vulcanizing ensures a 100% rubber tear bond between the lagging and the pulley shell.
In a word, you can choose which way you want to? If you have any questions and want to talk with me in advance, you can call me or add my wechat/whatsapp : + 86 16696206787 Email: alan@ramimtech.com