What are the important functions and working principles of plastic injection machines?
When thinking about the production of plastics and related products, such as automotive parts, medical devices, or appliances that primarily rely on plastic, the use of plastic injection machines is unavoidable. This is because plastic injection molding is a plastic molding process that involves adding plastic pellets to an injection molding machine. Once the plastic pellets are heated and softened, they melt into a liquid. The machine then injects the molten plastic into the injection molding machine for various molding operations. The workpiece is then released from the mold, creating a plastic part designed to fit the desired mold. However, there are many different types of plastic injection machines available. Today, we’ll explore the different types of plastic injection machines available. Let’s take a look.
Plastic injection molding machine
It is considered one of the most important devices for all types of plastic-related industries. This is because the injection molding machine plays an important role in melting plastic pellets or plastic powder, whether it is Polyethylene (PE), Polypropylene (PP), Polystyrene (PS), Acrylonitrile Butadiene Styrene (ABS) or Polyvinyl Chloride (PVC) into liquid before being injected into molds to be modified into objects, appliances, automotive parts, medical equipment or various other devices. However, for the classification of plastic injection machines, there are currently 2 main types of plastic injection machines available for sale, which are divided according to the system and working format of each type of plastic injection machine.
Main types of plastic injection machines
For the classification of plastic injection machines according to the working system, they can be further divided into 3 types as follows:
- Electric Injection Molding
This is another type of plastic injection molding machine that is popular in various plastic parts manufacturing and molding industries. It excels in efficiency, precision, quietness, and speed of plastic molding, surpassing other injection molding machines. Electric injection molding machines have many advantages, making them a popular choice for business owners, as they can effectively reduce operating costs and save energy. - Hydraulic System
Hydraulic injection molding machines are another type of plastic injection molding machine that uses water or oil as a driving medium to drive a hydraulic cylinder or motor, which can then be driven and transmit power. This type of operation is beneficial because it makes the machine and the plastic injection molding machine easy to use, control, and maintain. Another attractive advantage is its affordable price compared to machines with other operating systems. - Hybrid Systems
Most people are familiar with hydraulic injection molding machines. However, hybrid injection molding machines have become increasingly popular. These machines utilize electrical power transmission, providing stable operation and energy savings due to their ball screw system, the same transmission system used in CNC machines. Hybrid models eliminate the need for oil, resulting in lower power consumption than hydraulic systems.
For plastic injection machines, according to their working style or divided according to the form of injection of plastic that has been melted into the plastic injection machine, it can be divided into 2 forms as follows:
- Horizontal Injection Molding Machine
This machine operates horizontally. Once the plastic pellets are placed in the injection molding machine and heated until they melt, the molten plastic pellets are injected into the mold in a straight, horizontal line, perpendicular to the mold plane. Note that horizontal injection molding machines have the injection unit and mold opening and closing control units aligned in the same direction. This makes it the most popular type of injection molding machine used in the manufacturing industry. - Vertical Injection Molding Machine
This machine operates vertically. Once the plastic pellets are fed into the injection molding machine and melted, the machine injects the molten plastic into the mold in a vertical line, perpendicular to the plane of the mold used for molding. This operation is significantly different from that of a horizontal injection molding machine.
However, knowing the types of injection molding machines available will give you a clearer perspective on choosing the right injection molding machine for your product production needs.
However, selecting the right injection molding machine for each type of product is crucial to ensure high-quality products that meet market demands. Furthermore, consider the product’s specific needs and requirements, such as the size and shape of the part to be produced, the materials used, the production volume, and the speed required for the injection molding process. Consider carefully and consult with experts. Overall, selecting the right injection molding machine will ensure high-quality and accurate products.
Looking for plastic injection machines? You can contact Idda Machine Tools Co., Ltd. for advice, importer and distributor of industrial machinery such as lathes (CNC Lathe), CNC milling machines, CNC Milling machines, plastic injection machines, wire cutting machines, grinding machines, fiber laser cutting machines, band saws, as well as spare parts and other tools that meet ISO 9001 quality standards, with a team of expert technicians and confidence in our after-sales service team, which we prioritize as number 1.
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