How Do I Determine If A Cable Granulator Machine Belt Needs Replacement?
Oct 24, 2025
I. Visual Inspection
1. Cracks and Wear
Visually inspect the belt surface. If three or more transverse cracks appear per 25 cm or the internal fiber layer is visible, replace it immediately.
Edge wear reaching 1/3 of the belt's thickness or delamination indicates belt aging.
2. Hardening and Deformation
Pressing the center of the belt should yield a normal deflection of 10-15 mm. If the deflection is less than 5 mm or the belt feels stiff, it indicates a loss of elasticity.
II. Performance Testing
1. Determining Abnormal Noise
If a high-frequency squealing sound (slipping) or a low-frequency humming sound (severe wear) persists for more than three seconds during operation, the belt needs to be replaced.
For wet equipment, pay special attention to abnormal noise caused by expansion due to moisture.
2. Tension Check
If the belt is too loose (slippage > 1.5 cm), it is prone to slippage. If it is too tight (slippage < 0.5 cm), it will wear faster and require adjustment or replacement. III. Cycle and Operating Condition References
1. Time/Mileage Standards
Dry-type equipment: 1-2 years or 2000-3000 hours; wet-type equipment: 6-12 months (reduced to 3-6 months in humid environments).
Heavy loads or high dust levels require a 30% reduction in cycle time.
2. Special Operating Conditions
When handling cables containing iron or when operating under long-term overload conditions, inspections are required in advance.
