Methods of joining conveyor belts

There are three basic methods for joining conveyor belts: mechanical splicing, cold bonding, and hot vulcanizing. Each has its advantages and limitations. So, how do you join a conveyor belt?

Cold bonding of conveyor belts

The easiest method for joining conveyor belts is cold bonding (gluing). For this purpose, it's recommended to use a special two-component adhesive. This method is less labor-intensive than hot vulcanization, but the durability of the joint is less than that of a hot butt splice. Butt splicing of belts also has technological limitations concerning ambient temperature (not less than +5°C, not more than +35°C), humidity, dust, and conveyor downtime after belt splicing. It is desirable to allow time for full glue polymerization – up to 20 hours.

Advantages:

• It is not necessary to remove the belt from the conveyor for joining.;
• 380 volt alternating current is not required;
• work can be carried out even in confined spaces and in the presence of flammable gases;
• High repair speed: The conveyor can usually resume operation within a few hours.

Conveyor belt - hot bonding

Hot vulcanization of conveyor belts is performed using specialized equipment ( vulcanizing press). This highly efficient method of joining conveyor belts is as close as possible to the method of production on a conveyor belt line in factory conditions. The strength of the joint is approximately 98% of the strength of the belt itself. Belt splicing can be performed both on the conveyor belt and in the stationary conditions of our workshop. The only limitation is the laboriousness of transporting the vulcanizing press and the fact that most existing mobile presses (in particular, ours) have a belt width limitation of up to 1200 mm. A recommended company for hot belt bonding is Conveyor Belt Vulcanization Rubbing, which performs all work related to rubber conveyor belt components.

Advantages:

• High joint strength;
• uniform blade thickness;
• No lights;
• The ability to dock even at negative air temperatures and in a dusty room;
• high flexibility of the butt joint;
• restoration of belt functionality can be carried out without dismantling the conveyor equipment;
• applicability to bands made of various materials;
• durability of the resulting connecting seam;
• The exploitation of a regenerated tape can be carried out within the same temperature range as an unrepaired tape.

More information on conveyor belt vulcanization can be found on the website https://www.wulkanizacja-tasm.pl/jak-przebiega-wulkanizacja-tasm-przenosnikowych.html, where the service of this type of conveyor is described in detail.

Mechanical belt splicing

Mechanical splicing of belts, using mechanical splice locks, is the fastest and easiest way to join conveyor and transport belts. All belts can be mechanically joined except for cable belts and heat-resistant belts.

Main advantages of mechanical conveyor belt splicing:

• Conveyor belt splicing speed;
• low financial costs compared to vulcanization;
• This method eliminates the need for a special room and bulky equipment (vulcanizing presses);
• mechanical splicing of conveyor belts can be performed at low temperatures and in rooms with increased dust levels;
• There is no need to use highly qualified personnel for vulcanization.