3. Selection of injection speed（Injection Molding Technical Information

Generally, the control panel of an injection molding machine has a fast slow knob to meet the requirements for injection speed. A large flow oil pump and a small flow pump are installed in the hydraulic system to operate and supply oil simultaneously. When the oil circuit is connected to a large flow rate, the injection molding machine achieves rapid mold opening and closing, rapid injection, and so on. When the hydraulic oil circuit only provides a small flow rate, various actions of the injection molding machine proceed slowly

4. Selection of ejection form

Injection molding machines have two types of ejection: mechanical ejection and hydraulic ejection. Some are also equipped with a pneumatic ejection system, with single and multiple ejection times. The ejection action can be manual or automatic.
The ejection action is initiated by the mold opening stop limit switch. The operator can achieve this by adjusting the ejection time button on the control cabinet as needed. The ejection speed and pressure can also be controlled by switches on the control cabinet, and the forward and backward distance of the ejector pin movement is determined by the travel switch.