A plastic injection molding machine is a key tool in modern manufacturing, used to produce a wide range of plastic products. From household items to automotive components, this machine transforms raw plastic pellets into precise and consistent shapes through a controlled injection process. Understanding the components included in a plastic injection molding machine helps clarify how it operates efficiently and reliably.
Injection Unit
The injection unit is one of the core components of a plastic injection molding machine. It consists of a hopper, where plastic pellets are loaded, a barrel, which heats and melts the plastic, and a screw or plunger, which pushes the molten plastic into the mold. The injection unit controls the pressure, speed, and volume of plastic injected, ensuring each product is formed accurately. Temperature regulation in the barrel is essential to maintain consistent plastic flow and prevent defects.
Clamping Unit
The clamping unit holds the mold in place and ensures it remains securely closed during the injection process. This unit includes a stationary platen, a moving platen, and tie bars that support the structure. The clamping system uses mechanical, hydraulic, or electric mechanisms to apply sufficient force to keep the mold shut while the plastic is injected. Proper clamping is crucial to maintain product accuracy and prevent leakage of molten plastic.
Mold and Auxiliary Components
The mold itself is a central part of the machine and defines the shape of the final product. It is typically made from steel or aluminum and can contain multiple cavities for mass production. Additional components, such as ejector pins, cooling channels, and sensors, help release the finished product and maintain optimal temperature during molding. Modern machines may also include control panels for programming cycles and monitoring operations, as well as safety features to protect operators.
https://www.turnkeymould.com/product/used-stool-mould/tq018-used-adult-stool-injection-mould.html
Core &Cavity Steel 45#,p20 718H,
Mould base & Standard Component DME, HASCO, Self-made etc.
Steel hardness HRC28
Plastic material PS ,PC, PET, etc.
Injection System cold runner , normal hot runner
Ejector System eject pin , air eject pin
Cycle Time 30s-45s
Tooling time 7-14 Days
Mould life 50,000 Shots-500,000 shots