A large rubber vulcanizing machine is mainly composed of the following parts:
- Heating System: It usually uses electric heating or steam heating. Electric heating plates are evenly distributed with heating wires to ensure a uniform temperature on the surface of the vulcanization plates, which can be quickly heated to the temperature required for rubber vulcanization, generally around 140 - 160°C.
- Pressurization System: Generally, a hydraulic system is employed. High - strength hydraulic cylinders provide sufficient pressure to tightly press the upper and lower vulcanization plates together. The pressure can be adjusted according to factors such as the material and thickness of the rubber product, usually in the range of 0.8 - 1.5 MPa.
- Control System: It is equipped with a digital display control panel, which can set parameters such as temperature and time, and is also equipped with an over - temperature alarm function. It can ensure the stability of the vulcanization process with a temperature control accuracy of around ±2°C.
- Frame Structure: Made of high - strength materials, it can withstand high temperatures and pressures, ensuring the stability and reliability of the equipment during operation. It supports the heating plates and the pressurization system.
During operation, the large rubber vulcanizing machine first places the rubber material to be vulcanized between the heating plates. Then, the heating system raises the temperature to the set value, and the pressurization system applies appropriate pressure. Under the combined action of heat and pressure, the rubber molecules undergo cross - linking reactions to form a dense network structure, thus enhancing the strength, elasticity and durability of the rubber. After the vulcanization is completed, the equipment is cooled and the vulcanized rubber product is taken out.
This kind of vulcanizing machine is widely used in the production of tires, conveyor belts, rubber hoses, seals and other rubber products. In the tire industry, it is used to vulcanize tires of different sizes and specifications to ensure the quality and performance of tires. In the production of conveyor belts, it can vulcanize wide and long conveyor belts to improve their transportation capacity and service life.

