Coated rubber belts are common components in industrial conveyor systems. Due to their advantages such as wear resistance, oil resistance, corrosion resistance, and tear resistance, they are widely used in mining, logistics, manufacturing, and food processing industries.
Many users are concerned about the difficulty of installing coated rubber belts when replacing or building new conveyor systems. What details should they pay attention to? This article will take you to a deeper understanding!
1. Is Coated Rubber Belt Difficult to Install?
Generally, the installation of coated rubber belts can be divided into four main steps: preparation, belt pulling, jointing, and adjustment. Whether each step is standardized will directly affect the final service life and conveying performance.
(1) Preliminary Preparation
Although it seems simple, the preparatory work is crucial, including:
Checking whether the conveyor rollers, supports, and idlers are intact
Confirming that the specifications of the coated rubber belt match the equipment
Cleaning debris and oil stains from the conveyor
Preparing tools such as tensioners, clamps, and buckles
If these are not handled in advance, problems such as misalignment and slippage are likely to occur during subsequent installation.
(2) Belt Pulling: Even Force Required
Belt pulling usually requires specialized equipment or multiple personnel. The key points are:
Equal force on both sides of the belt
Avoid hard friction between the rubber belt and the metal edge
Ensure the coating surface is not scratched
Especially for thicker or longer coated rubber belts, safety and smooth operation are crucial during the pulling process.
(3) Joint Treatment: The Most Critical Step in Installation
There are two main joint methods for coated rubber belts:
① Mechanical Fastening (Suitable for temporary or light-load scenarios)
② Hot Vulcanization Joint (High strength, long lifespan, most recommended)
During the jointing process, pay attention to:
Ensure neat cuts
Align the joints properly, avoiding misalignment
Strictly control the hot vulcanization temperature, pressure, and time
Operate by qualified personnel whenever possible to avoid insufficient joint strength leading to belt breakage
The strength of the joint directly determines 70% of the service life.
(4) Adjustment and Trial Run: Ensure No Deviation or Slippage
After installation, fine-tuning is required using the tensioning system:
Check the center position of the rubber belt
Adjust the direction of the idlers to ensure no deviation
Check if the friction of the drive roller is sufficient
Gradually increase the load during trial run; do not run at full load at once
As long as the adjustment is correct, the coated rubber belt will run smoothly.
2. What should be noted when installing a coated rubber belt?
The installation of a coated rubber belt seems simple, but many details determine its service life and safety.
(1) Avoid scratching the coating with sharp objects
The surface of the coated rubber belt may be PVC, PU, rubber, or a special wear-resistant coating. Once scratched, it will reduce its lifespan and may even cause local delamination.
Recommendation:
Avoid contact with sharp metal during installation
Use cloth or soft padding to isolate the belt body from the edge contact points
(2) Ensure correct tension; do not be too loose or too tight
Too loose → rubber belt slippage and deviation
Too tight → accelerates wear on the belt body and idlers, and may even cause breakage
The tension should be adjusted according to the equipment manual, gradually adjusting to the optimal state.
(3) Joints must be flat and aligned
The quality of the joints determines the lifespan of the rubber belt. Common problems include: misaligned joints, insufficient joint strength, improper control of hot vulcanization temperature, and inconsistent thickness at the joint. It is recommended to use hot vulcanized joints whenever possible and have them operated by professionals.
(4) Install in the correct direction; do not use in reverse
Some coated rubber belts have directionality (such as toothed, textured, or guide strip-equipped belts). If installed in the wrong direction, it will affect the conveying effect and may even damage the equipment.
(5) Check if the idlers and rollers are parallel
If the idlers and rollers are not on the same horizontal line, it is easy for the rubber belt to run off-center, and repeated friction will also damage the coating.
(6) Avoid excessive bending of the belt during installation
Bending the angle too small will cause the coating to break or damage the belt core, especially for thick-coated rubber belts.
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