Here are the proper ways to store rubber conveyor belts:
1. Environmental conditions
– Temperature: Store the conveyor belt in an environment where the temperature ranges from 18 – 25 °C. Extreme cold can make the rubber brittle, increasing the risk of cracking. High temperatures can cause the rubber to age prematurely, losing its elasticity and mechanical properties.
– Humidity: Maintain a relative humidity of 40 – 60%. Excessive humidity can lead to the growth of mold and mildew on the belt surface, while very low humidity can also contribute to drying and cracking of the rubber.
2. Storage location
– Avoid direct sunlight: Ultraviolet (UV) rays from sunlight can accelerate the degradation of the rubber material. Store the belts in a dark or shaded area, such as an indoor warehouse.
– Keep away from chemicals: Chemicals like acids, alkalis, oils, and solvents can react with the rubber, causing swelling, softening, or hardening. Ensure that the storage area is free from such substances. Also, avoid storing belts near sources of ozone, as ozone can cause rubber to crack.
– Select a clean area: A dirty storage environment can introduce contaminants that may abrade the belt surface during handling or use.
3. Belt orientation and support
– Roll storage: Store conveyor belts in their rolled form. When rolling, ensure that the belt is rolled tightly and evenly to prevent creasing or uneven stress. The belt should be placed on a flat, stable surface.
– Use appropriate supports: If the belts are stored on racks, the racks should be designed to support the rolls without causing deformation. The diameter of the storage roll should be at least 100 times the thickness of the belt to prevent excessive bending stress. Avoid storing belts on sharp or rough surfaces that could damage the outer layer.
4. Stacking and handling
– Limit stacking height: If stacking multiple rolls of conveyor belts, do not stack them too high. Excessive weight from upper rolls can deform the lower ones. A general rule is to limit the stack to no more than three rolls, depending on the belt’s thickness and strength.
– Gentle handling: When moving the stored belts, use proper lifting equipment to avoid dragging or dropping. Rough handling can cause damage to the belt edges, surface, or internal structure