· Simple and Robust Construction: The mechanical design is relatively uncomplicated, leading to low maintenance costs.

· Operational Flexibility: Allows for real-time observation and manual adjustment of the material, making it ideal for small-batch, multi-variety production and formula development.

· Intense Shear Action: The friction ratio between the rollers provides highly effective mixing and mastication capabilities.

· Open Operation: Facilitates the easy addition of various additives (such as fillers, plasticizers, colorants) during the mixing process.

· Labor-Intensive: Often requires manual operations like cutting and folding the material, resulting in a relatively low degree of automation.