What are the main technical parameters of a two-color injection molding machine?

A two-color injection molding machine is an advanced device that can realize the molding of two different colors or materials of plastic products at one time. Its technical parameters determine the performance, application range and production efficiency of the machine. Understanding these parameters is essential for selecting and using a two-color injection molding machine. The following is a detailed description of the main technical parameters of a two-color injection molding machine.

1. Clamping Force
Clamping force is a key parameter to measure the ability of an injection molding machine to lock the mold, usually in tons (T). The clamping force of a two-color injection molding machine is generally between tens of tons and thousands of tons. The greater the clamping force, the more mold sizes and cavities the injection molding machine can withstand, and the wider the range of applicable products.

2. Injection Units
An important feature of a two-color injection molding machine is that it is equipped with two independent injection units. These two injection units can heat, plasticize and inject plastics of different colors or materials separately. The configuration of the injection units (horizontal or vertical) and the arrangement of the injection units (parallel or vertical arrangement) will affect the overall structure and application range of the machine.

3. Shot Size
The shot size refers to the maximum volume of plastic melt that can be injected into the mold by the injection unit per shot, usually in grams (g) or cubic centimeters (cm³). A two-color injection molding machine has two injection units, so the injection volumes of the two injection units need to be considered separately.

4. Injection Pressure
The injection pressure is the pressure of the plastic melt when it enters the mold cavity through the nozzle, usually in megapascals (MPa). High injection pressure can ensure that the plastic melt quickly fills the mold cavity, improving molding accuracy and product quality. The injection pressure of a two-color injection molding machine needs to be set and controlled separately to meet the requirements of different materials and products.

5. Screw Diameter
The screw diameter refers to the diameter of the screw in the injection unit, usually in millimeters (mm). The screw diameter affects the plasticizing ability and injection volume of the plastic. Two-color injection molding machines are usually equipped with two screws of different diameters to meet the injection molding requirements of different materials and colors.

6. Injection Speed
The injection speed is the speed at which the plastic melt is injected into the mold cavity, usually in millimeters per second (mm/s). Higher injection speed can shorten the injection cycle and improve production efficiency. Two-color injection molding machines need to control the injection speed of the two injection units separately to ensure the quality and molding effect of two-color products.

7. Mold Opening Stroke
The mold opening and closing stroke refers to the maximum distance from the mold fully closed to fully open, usually in millimeters (mm). This parameter determines the size of the mold and the removal space of the product. Reasonable mold opening and closing stroke can ensure smooth demolding of the product and avoid damage.

8. Mold Thickness Range
The mold thickness range refers to the mold thickness range that the two-color injection molding machine can accommodate, usually in millimeters (mm). The mold thickness range determines the type of mold that the injection molding machine can use and the complexity of the product. Choosing a suitable mold thickness range can improve the flexibility and applicability of production.

9. Injection Stroke
The injection stroke refers to the maximum distance that the screw advances during the injection process, usually in millimeters (mm). The injection stroke affects the injection volume and injection speed, and is an important parameter to ensure the molding accuracy of the product. The two injection units of the two-color injection molding machine need to set the injection stroke separately to meet the needs of different materials and products.

10. Drive System
The drive system includes hydraulic, all-electric and hybrid systems. The hydraulic drive system is suitable for applications with high clamping force and large injection volume, the all-electric system has the advantages of high precision and energy saving, and the hybrid system combines the advantages of hydraulic and electric. Choosing the right drive system can optimize machine performance and production efficiency.