Injection molding is a widely used manufacturing process, but is it classified as a CNC (Computer Numerical Control) machine process? The confusion may arise due to the similarities in automation and precision found in both CNC machining and injection molding. However, while both processes involve precise control of machines, they operate on different principles and are used for distinct purposes. In this article, we’ll explore the relationship between injection molding and CNC machinery and clarify whether injection molding can be considered a CNC process.
Understanding the Basics of Horizontal Injection Molding
Injection molding is a manufacturing process that involves injecting molten material—typically plastic, rubber, or metal—into a mold cavity. At Dekuma, we specialize in horizontal molding machines designed for producing high-quality rubber parts, including sealing rings. These machines are equipped with advanced features like servo-driven hydraulic pump systems and FIFO injection design, ensuring efficient production and minimal waste. However, the key difference between horizontal injection molding and CNC machining lies in the materials used and the forming method.
CNC machines are typically used for subtractive manufacturing, where material is removed from a workpiece to achieve the desired shape. In contrast, horizontal injection molding involves injecting material into a mold to create parts. The focus in injection molding is on filling the mold cavity and ensuring complete material flow, while CNC machining focuses on cutting or drilling into a solid workpiece.
The Automation and Precision of Horizontal Molding Machines
At Dekuma, we emphasize the precision of our horizontal injection molding machines. These machines are designed with automatic mold handling, which includes features like automatic brushes for mold cleaning and product pickup. This automation helps reduce defects and increases production speed, contributing to tighter tolerances required in applications like sealing rings. The servo-driven hydraulic system ensures that the pressure and flow are adjusted based on real-time demand, which helps optimize energy consumption without sacrificing performance.
Unlike traditional CNC machines that rely on manual setups and tool changes, horizontal molding machines at Dekuma feature an integrated injection unit, which directly embeds the injection system into the mold template. This streamlined design ensures quicker cycle times and more consistent part production.
Comparing CNC Machines and Horizontal Injection Molding Systems
The comparison between CNC machines and horizontal injection molding machines highlights both similarities and differences in their operational techniques. While CNC machines excel in producing parts with high precision from a block of material, horizontal injection molding is more suited to mass production of parts with complex shapes that need to be filled with material under pressure.
In terms of precision, Dekuma’s horizontal molding machines achieve high-quality results through features such as ultra-high pressure injection systems that ensure complete mold filling and prevent defects like air bubbles or incomplete edges. This level of precision is similar to CNC but is focused on material injection rather than material removal.
Conclusion
In conclusion, while both horizontal molding machines and CNC machines offer precision and automation, they serve different roles in the manufacturing process. Horizontal injection molding is not technically a CNC process, as it involves injecting materials into a mold rather than machining a solid workpiece. However, both processes share a focus on automation and precision, and at Dekuma, we continuously work on enhancing the capabilities of our horizontal injection molding machines to meet the demanding requirements of industries that require fast, high-volume production of precise parts.