The open mill is primarily composed of roller shafts, frames, spacing devices, and transmission mechanisms. Material is pulled into the gap between two counter-rotating roller shafts under the action of friction at varying linear speeds. The material between the roller shafts is subjected to intense shearing and compression, raising the material's temperature and plasticity, thereby achieving the purpose of rubber refining. It is used for plasticizing, blending, sheeting, and hot refining operations.

The equipment comes in various specifications and models, categorized by the number of rollers into two-roller, three-roller, and four-roller types. Operation-wise, it can be divided into intermittent and continuous processes. As for application, it includes plasticizers, mixers, and tablet presses.

When using an open mill, please note:

Before starting the vehicle, check the integrity of all equipment components, especially the roller and spacing device.

2. Pre-treatment of materials, such as crushing and drying, should be conducted before feeding to ensure the quality and processability of the materials.

During operation, be cautious to prevent hands or clothing from being caught in the roller gap to avoid injury.

4. Select appropriate operational methods and parameters based on different process requirements, such as roller temperature, speed, and feed quantity.

Upon completion of the operation, shut off the power and clean and maintain the machine to ensure its longevity and performance.

In summary, the open mill is one of the key equipment in the rubber industry, playing a crucial role in ensuring the quality and performance of rubber products. During operation, strict adherence to operational procedures is essential to ensure smooth production.