Chemical – Coal Handling Sidewall Conveyor Belt

Project Background

One coal chemical operation in Xinjiang was using a sidewall conveyor belt for coal transportation. The original belt suffered severe sidewall tear after only 10 months in service. Frequent sidewall damage disrupted material throughput and brought extra manual cleaning work, raising overall operational costs.

Core Challenges

Sidewall fatigue cracking under continuous cyclic bending, early stage tear failure.

High temperature working conditions demanding reliable heat resistant belt performance.

Unplanned downtime and extra labour cost caused by frequent belt damage.

Our Solution

Our engineering team diagnosed root cause: insufficient fatigue resistance of the original sidewall structure. Most local manufacturers skip dynamic fatigue validation for sidewalls. QBF rubber runs strict 5 million cycle dynamic fatigue test on every sidewall before delivery, verifying no crack occurrence after repeated flexing. We supplied custom formula heat resistant sidewall conveyor belt for this coal chemical conveying line.

Field Result

After replacement, the QBF rubber sidewall conveyor belt has run continuously for 7 years.

• Zero sidewall cracking or tearing
• Stable conveying performance under high temperature operating environment
• Sharp drop in unplanned downtime and manual cleaning workload
• Extended service life lowers total ownership cost for the site