1. Temperature Range
General Operating Temperature: The general operating temperature range for PVC conveyor belts is -10°C to 80°C. Within this temperature range, PVC conveyor belts maintain excellent performance, including flexibility and strength.
Sudden Temperature Resistance: Some custom PVC conveyor belts can withstand sudden temperatures up to 110°C. However, long-term use in environments above 110°C can cause surface cracking and gradual detachment of the PVC rubber layer, shortening the belt's service life.
2. Performance in High-Temperature Environments
Material Aging: High temperatures accelerate aging of PVC, causing the belt to soften and lose strength, potentially even cracking and delamination.
Hardness Change: At 100°C, the hardness of PVC drops from 85 Shore A to 60 Shore A, significantly reducing its wear resistance and tensile strength.
Shortened Service Life: High temperatures accelerate aging of PVC, reducing its tensile strength and wear resistance, and may even cause delamination or shedding of the conveyor belt's surface. 3. Usage Recommendations
Temperature Monitoring: When using PVC conveyor belts in high-temperature environments, regularly monitor the belt temperature to ensure it does not exceed the material's temperature resistance.
Periodic Inspections: Regularly inspect the belt's surface condition to promptly detect and repair any damage caused by high temperatures.
Choosing the Right Material: If the application environment requires long-term high-temperature operation, it is recommended to choose a specially designed high-temperature resistant conveyor belt, such as a Teflon or silicone conveyor belt.
Cooling Measures: In high-temperature environments, cooling measures such as installing ventilation fans or cooling devices can be implemented to reduce the conveyor belt's temperature.
4. Special Application Scenarios
Food Processing: In the food processing industry, PVC conveyor belts are often used to transport materials that require short-term high-temperature processing, such as baked goods.
Chemical Industry: In the chemical industry, PVC conveyor belts can be used to transport certain chemicals that require high-temperature processing, but the temperature must be within the material's temperature resistance.
5. Alternative Options
High-Temperature Resistant Materials: For environments requiring higher temperatures, consider using high-temperature resistant materials, such as silicone conveyor belts (temperature resistance up to 260°C) or Teflon conveyor belts (temperature resistance up to 300°C). Multi-layer composite structure: The multi-layer composite structure (such as surface PTFE + middle PET fabric + bottom PE) can take into account both high temperature resistance and tear resistance.
