Summary

The Rubber Chopper is a coarse grinding machine that comes equipped with an anvil, hammer, orifice plate, and cut-off knife. It uses shearing and crushing forces generated by the slowly rotating rotor for size reduction. The Rubber Chopper has a very durable structure for its purpose and operating condition. Natural Rubber, Synthetic Rubber, and Regenerated Rubber used as a principal raw material for plastic, resin, and rubber products such as tires, are usually transported in large blocks (called “bale” with an approximate size of 400 x 200 x 800mm and weight of 35kg). However when a mixing process with other various materials and/or solutions is involved, a primary grinding operation is required to quicken the mixing process. The Rubber Chopper is the ideal machine for this primary grinding operation.

A Screw type main hammer that rotates at a low speed of 10-40rpm is located at the bottom of the raw material hopper. This rotor moves and pushes the material being processed against the orifice plate installed at the product outlet side, while applying shearing force generated in-between the anvil and adjustable anvil in the process. The hammer and cut-off knife are each equipped with separate motors. The orifice plate has a 2-piece design, which allows it to be removed without having to disassemble the shaft. The amount of raw material being taken in by the rotor can be adjusted by changing the position of the anvil.

Ram Feeder

Generally one bale has a weight of approximately 35kg, making it difficult to feed the raw material manually. Also, depending on the elasticity of the raw material, there were times when coarse particles would shoot out of the inlet leading to a decrease in operating efficiency. With the development of a pneumatic type ram feeder, (Bale Feeder) operating efficiency as well as hazardous work has been limited, leading to an increase of processing speed.