Special Rubber for Cutter Disc Seat and Screw Pump Stator

The cutter head seat is a key and easily worn - out component of large - scale underwater pelletizing units, and its performance depends on the rubber of the cutter head seat. Located between the rotating disk and the rotating shaft, it plays the roles of compensation and sealing. Its quality directly affects the function and quality of the underwater pelletizer. It is required to have good adhesion to the contacting components and be able to withstand a large torque. During the pelletizing process, it allows the cutter head to have a certain offset along with the die plate for pelletizing, achieving end - face swing compensation. It can compensate in any direction, enabling the cutter to fit evenly with the die plate, improving the pelletizing quality, and at the same time, extending the service life of the cutter and the die plate.

In China, most of the extrusion pelletizing units are imported from companies such as WP in Germany, Japan Steel Works (JSW), Kobe Steel in Japan, and Farrel in the United States. The domestic market has long been monopolized by foreign manufacturers. In recent years, domestic enterprises have developed and produced various specifications and models of large - scale extrusion pelletizing units for polypropylene and polyethylene. However, they still cannot meet the quality requirements, and the bottleneck problem is the inability to achieve compensation in any direction. As a result, the cutter head seat has to be imported as a complete set, causing a significant increase in costs.

Our company has specifically developed special rubber for the cutter head seat for a certain enterprise. This product can fully compete with foreign counterparts, and its service life is greatly extended.