1. Nominal injection volume: The maximum injection volume that can be achieved by the injection device when the injection screw or plunger makes a maximum injection stroke under the condition of air injection, and the unit of injection volume is: g/cm3 cube.

2. Injection pressure: its size is related to factors such as flow resistance, product shape, plastic performance, plasticizing method, temperature and mold temperature, and product accuracy requirements.

3. Injection rate: refers to the injection time and speed.

4. Plasticizing capacity: the amount of material that can be plasticized per unit time.

5. Clamping force: the maximum clamping force that the clamping mechanism of the injection machine can exert on the mold. Clamping force F≥KPA (kg or ton) K-----the dismantling factor of pressure loss 0.4----0.7P-----injection pressure A------the product is on the parting surface of the mold Projected area on (cm square)

6. The basic dimensions of the clamping device: the size of the template, the space of the tie rod, the maximum distance between the templates, the stroke of the moving template, the maximum thickness and the minimum thickness of the mold.

7. Mould opening and closing speed: the nozzle or movable mould moves at a certain speed to match the lower mould or fixed mould.

8. Empty cycle time: the time required to complete one cycle without plasticizing, injection pressure holding, cooling, and injection product actions. It consists of mold clamping injection, seat lifting, lowering, mold opening and switching time between actions.