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BAI-OTT Conveyor Belt Accessories Suppliers - 26 years of r&d of new splicing materials and rubber maintenance materials.
High-Efficiency Hot Vulcanisation Splicing Solution
Core Technology for Enhancing Conveyor Belt Splicing Performance
2025-08-11
Hot vulcanisation materials consist of three key components:
![High-Efficiency Hot Vulcanisation Splicing Solution 1]()
— Unvulcanised core rubber: Based on natural rubber (NR), butadiene rubber (BR), and styrene-butadiene rubber (SBR), it fills the gaps in the joint core, withstands tension, and absorbs impact. High-quality core rubber (such as the ZJ-FTG series) provides a tensile strength of 22 MPa and an elongation at break of ≥500%, effectively reducing stress concentration.
— Unvulcanised core rubber: Based on natural rubber (NR), butadiene rubber (BR), and styrene-butadiene rubber (SBR), it fills the gaps in the joint core, withstands tension, and absorbs impact. High-quality core rubber (such as the ZJ-FTG series) provides a tensile strength of 22 MPa and an elongation at break of ≥500%, effectively reducing stress concentration.
— Unvulcanised surface rubber: Made from nitrile rubber (NBR) or wear-resistant formulations, it resists material friction and corrosion. In cement plants, a 3mm-thick layer can triple wear resistance, reducing wear rates from 0.3mm/week to 0.1mm/week.
— Vulcanised adhesive (SA8000): Penetrates gaps between fibres/steel wires to form a strong bond, with a bond strength of 20 MPa and shear strength exceeding 12 MPa, suitable for temperatures ranging from -40°C to 145°C.
Vulcanisation process and equipment
Heavy-duty vulcanisation machines (ZJ-ROM) provide temperatures of 145-150°C and pressures of 1.4-1.6 MPa for standard joints, while portable vulcanisation machines (ZJ-RAM) are suitable for underground repairs. The standard process includes cleaning with SA3500, grinding, applying adhesive, laying the rubber layer (extending 2-3 centimetres beyond the joint), and vulcanising at 145°C for 45-60 minutes (with an additional 5 minutes per millimetre of thickness).
Application and Brand Advantages
In high-wear environments (ports/mines), professional conveyor belt splicing technology can restore 95% of the original strength, extending the service life to over 8 months. As a leading manufacturer in China, Bai-Ott provides high-quality repair materials (with a 15% faster curing speed) and customised products (ST8000 conveyor belt-specific 30 MPa core layer rubber and low-VOC environmentally friendly adhesive). Products comply with ISO 9001 and UPEM certification standards.
![High-Efficiency Hot Vulcanisation Splicing Solution 4]()
Cost-Effectiveness
Although the initial investment is 2-3 times that of cold bonding, the service life of hot vulcanised joints can reach 3-5 times that of cold bonding, reducing maintenance costs by 40% in heavy-duty operations. It eliminates the risk of delamination, which is critical in hazardous areas such as coal mines.
In high-wear environments (ports/mines), professional conveyor belt splicing technology can restore 95% of the original strength, extending the service life to over 8 months. As a leading manufacturer in China, Bai-Ott provides high-quality repair materials (with a 15% faster curing speed) and customised products (ST8000 conveyor belt-specific 30 MPa core layer rubber and low-VOC environmentally friendly adhesive). Products comply with ISO 9001 and UPEM certification standards.
Cost-Effectiveness
Although the initial investment is 2-3 times that of cold bonding, the service life of hot vulcanised joints can reach 3-5 times that of cold bonding, reducing maintenance costs by 40% in heavy-duty operations. It eliminates the risk of delamination, which is critical in hazardous areas such as coal mines.
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