Core Process

Feeding and Conveying	With the Feeding belt conveyor, the pre – treated raw materials are transported to the next link in an orderly manner. This equipment is like an industrial “conveyor belt”, ensuring that the raw materials enter the system continuously and stably, laying the foundation for mass production.
Plasticizing and Extruding	The raw materials enter the First level extruder and second level extruder. Through the rotation and heating of the screw, the solid raw materials are gradually melted and plasticized to form a molten mass with fluidity. The design of two – stage extrusion is like “double grinding”, making the plasticization of the raw materials more uniform and providing a “suitable fluid” for filling the mold cavity.
Quantitative Feeding	The molten mass after plasticization is accurately measured by the Plastic quantitative container. It is like an industrial “graduated cylinder”, strictly controlling the amount of raw materials entering the mold — too much will lead to excessive flash, and too little will result in insufficient filling, which is a key link to ensure product accuracy.The molten mass after plasticization is accurately measured by the Plastic quantitative container. It is like an industrial “graduated cylinder”, strictly controlling the amount of raw materials entering the mold — too much will lead to excessive flash, and too little will result in insufficient filling, which is a key link to ensure product accuracy.
Compression Molding	The quantitative molten mass enters the mold, and the Tray hydraulic press is started. The hydraulic press provides a stable pressure (10 – 50MPa), pushing the punch and die to close, allowing the molten mass to fill and solidify in the mold cavity (thermosetting plastics need to be heated for cross – linking, and thermoplastic plastics are cooled and shaped). The vent holes of the mold discharge air and volatile substances simultaneously to ensure the compactness of the product.
Product Removal and Palletizing	After molding, the Material retrieval robotic arm accurately grabs the product, replacing manual product removal, which is efficient and stable. Subsequently, the Finished product palletizing equipment stacks the products in an orderly manner, completing the transition from “individual products” to “mass storage”, adapting to the rhythm of industrial logistics.

After the product is demolded, it needs to undergo flash trimming, secondary processing (drilling, polishing, etc.), and quality inspection in terms of dimensions and performance to screen out qualified products. Moreover, mold cleaning and raw material recycling (supported by some processes) make the entire compression molding process form a “closed – loop”, taking into account both efficiency and cost.

With advantages such as simple equipment, low mold cost, and suitability for complex products (large – sized, thick – walled parts), this process is widely used in fields such as electrical parts and auto parts. From feeding, plasticizing to molding and palletizing, automation and precise control run through the whole process, which not only ensures product quality but also meets the needs of industrial mass production — this is the “irreplaceable” logic of compression molding in modern manufacturing.

In short, the complete process of compression molding is a “cooperative battle” of raw materials, equipment, and automation. From the starting point of belt conveying to the end point of robotic arm palletizing, each step explains that the core of industrial manufacturing is to turn “raw materials” into “products” through precise control, like an art.