Drums or pulleys are essential components in conveyor belts, as they are responsible for transmitting the movement and traction necessary for the efficient transport of materials. There are different types of drums used depending on the specific needs of each application.
Drums are typically made from carbon steel or stainless steel, depending on factors such as required strength, environmental corrosion, and workload. Carbon steel drums are most common due to their strength and long lasting, while stainless steel drums are ideal for corrosive environments.
They can be classified as head or traction drums, tail or return drums, inflection drums, counterweight drums, etc. The head drums are responsible for providing traction to the conveyor belt, the tail drums allow the return of the belt and the inflection and counterweight drums generate the appropriate tension for optimal operation of the belt.
In addition, drums can be provided with special lagging to improve their performance and extend their life. Some of the most common lagging are vulcanized rubber, smooth or grooved (diamond, herringbone, etc.) and a standard hardness of 70° Sh. These coatings can provide properties such as wear resistance, additional traction, noise reduction and corrosion protection.
To sum up, the choice of the right drum type and material, as well as the application of specific coatings, are key aspects to consider in order to ensure optimal and efficient operation of conveyor belts in various industries.
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