​Jointing Operation and Applications of Belt Vulcanizing Machines​

Belt Vulcanizing Machine: Applications and Jointing Process

Belt vulcanizing machines are widely used for on-site splicing of conveyor belts in industries such as metallurgy, chemical processing, metal mining, power plants, ports, and terminals. The vulcanized joint achieves a tensile strength of no less than 90% of the original belt, creating a smooth connection that reduces roller wear and extends the service life of both the conveyor belt and rubber transport components. Below, Wuxi Yikai Mining and Metallurgy introduces the belt vulcanizing machine.

Safety Notice:

If an electrical malfunction occurs, repairs must be performed by a certified electrician. Unqualified personnel should never attempt repairs to avoid personal injury. If issues persist, contact the manufacturer for professional service. Wuxi Yikai Mining and Metallurgy Equipment Co., Ltd. specializes in producing vulcanizing machines and electric hydraulic pumps.

Jointing Preparation:

One set of conveyor belt vulcanizing machine

Two sets of clamping plates

One set of belt stripping machine

Belt splicing materials

Power cables

Position the conveyor belt on the frame with the joint accessible

Disconnect power and remove protective covers/brackets

Jointing Procedure:

Setup and Preparation

Position the vulcanizer and mark/cut the joint area

Use the stripping machine to create step layers (ensure uniform without damaging underlying cords)

Maintain corresponding step patterns on both belt ends

Surface Treatment

Roughen surfaces with tungsten carbide grinding discs without damaging cord layers

Pay special attention to edge treatment (critical yet challenging areas)

Ensure complete coverage without missed spots

Bonding Preparation

Clean joint surfaces thoroughly and apply cement uniformly

Use materials manufactured within 3 months (expired materials cause bonding failures)

Apply a layer of core rubber on the joint surface

Assembly and Vulcanization

Align the other belt end and apply cover rubber at the seam

Precisely calculate cover rubber thickness based on belt specifications

Pressurize to 1.2 MPa and heat to 145°C

Maintain temperature for 30 minutes (adjustable based on belt specifications)

Improper curing time causes under/over-vulcanization

Quality Inspection

Check joint flatness after demolding

Identify bubbles, unevenness, or honeycomb pores at edges

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