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EPDM extrusion and vulcanization production line

Time：

2018-08-10

The EPDM extrusion‑crosslinking production line is primarily designed for the efficient extrusion and rapid, continuous crosslinking of small‑ to medium‑size EPDM products. This line comprises an EPDM extruder, a high‑temperature pre‑crosslinking oven, and a hot‑air circulation curing tunnel, and employs a proprietary compound formulation process that eliminates the need for a microwave crosslinking unit. Compared with existing equipment, it reduces capital investment by more than 50%, cuts electricity costs by over 40%, and saves more than 50% of floor space. The machine is a single‑screw extruder, featuring an extrusion die, barrel, automatic feeding system, electrical control system, and a water‑flow cooling and heating system.

The EPDM extrusion and vulcanization production line is primarily designed for the efficient extrusion and rapid, continuous vulcanization of small- and medium-sized EPDM products.

The EPDM rubber extrusion and vulcanization production line consists of an EPDM extruder, a high‑temperature pre‑vulcanization oven, and a hot‑air circulation curing tunnel. It employs a proprietary compound formulation process and eliminates the need for a microwave vulcanization unit. Compared with existing equipment, it reduces capital investment by more than 50%, cuts electricity costs by over 40%, and saves at least 50% of floor space.

This machine is a single-screw extruder, comprising an extrusion die, a barrel, an automatic feeding system, an electrical control system, a water‑cooled and heated cooling system, and a mold temperature controller.

Technical Features:

1. The screw’s length-to-diameter ratio reaches 20:1, ensuring thorough plasticization of challenging materials, excellent extrudate density, and a smooth surface both internally and externally.

2. The die head features a flange‑type design, enhancing extrusion performance and enabling convenient mold installation as well as easy disassembly and cleaning.

3. Equipped with a variable-frequency motor and inverter for speed control, the machine maintains excellent stability and reliability at both high and low operating speeds.

4. Equipped with an automatic feeding device, it ensures stable and uniform material feed and allows for convenient disassembly and cleaning.

5. The barrel and water channels are integrated into a single unit, employing an external helical flow path to ensure consistent cooling and temperature control.

6. The screw, die head, and feeding unit are all equipped with a water‑cooled temperature‑control system, enabling stable, long‑term operation and delivering excellent extrusion performance for rubber compounds of varying hardnesses.

7. It can achieve extrusion effects for other materials both inside and outside the sheath.

Hot-air circulation stone‑baking oven tunnel: The hot-air circulation stone‑baking oven tunnel consists of a high‑temperature pre‑stone‑baking chamber (front baking section), a hot‑air circulation baking tunnel (rear baking section), and a control cabinet, with a total length not exceeding 15 meters.

High-Temperature Pre‑Sintering Furnace (Pre‑Baking Zone): Operating temperature up to 500°C, heating power 6.4 kW;

Hot-air circulation section (post‑baking tunnel): Equipment length 10–14 meters, maximum operating temperature 250°C, heating power 30 kW, with variable-frequency speed control.

Technical Features:

1. In terms of process design, there is no need to use a microwave vulcanization system; instead, a 10-meter hot-air drying tunnel can be employed to achieve efficient, rapid vulcanization of various small- and medium-sized rubber products. This approach delivers high production efficiency—2 to 3 times that of conventional methods—while occupying minimal floor space and reducing capital investment and energy consumption.

2. The high-temperature pre‑crystallization oven is equipped with German‑imported ceramic far-infrared heaters, ensuring rapid temperature rise and high thermal efficiency. With a maximum operating temperature of 500°C, it can completely eliminate compression marks on extruded products and address issues related to poor roundness.

3. Equipped with a variable-frequency motor and inverter for speed control, ensuring excellent stability at both high and low speeds.

4. It adopts an open‑type structure, making inspection, maintenance, and cleaning extremely convenient.

5. All control instruments feature digital displays, offering high accuracy and easy operation.