Injection Molding Manufacturing Process - SAMBO
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Mixture Calculation---
NO Degraded Material
Shall Be Used.

To achieve the desirable performance of the plastic, we choose different raw materials based on our thorough understanding of the characteristics and effects of specific materials.

PP: Lightweight, high chemical resistance, scratch resistance;

ABS: Strong, flexible, low mold shrinkage;

PC: Tough, temperature resistance;

Besides, common materials we use include PA66,PA6, PC/ABS,PA66+GF+UV, PP+GF+UV, RYTON, PPS, PE, PMMA, PBT, etc.

Contact us to get better material within your budget.

a male worker holding plastics pallets in hands

Injection Molding Step by Step

  • step one of injection molding

    Step 1: Pellets Feeding

    Proper calculated materials, usually in the form of pellets, are fed into the injection molding machine, and advanced towards the mold by the injection unit. During this process, the material is melted by heat and pressure.

  • step two of injection molding

    Step 2: Melted

    The molten plastic is then injected into the mold very quickly and the buildup of pressure packs and holds the material.

  • step three of injection molding

    Step 3: Injection

    When the molten plastic resin is injected into the designed mold cavity, it begins to cool as soon as it makes contact with the interior mold surfaces and your designed plastic parts take their final shape at this stage. An impeccable product is made possible with a prefect mold design from the very beginning.

  • step four of injection molding

    Step 4: Ejecting

    After sufficient time has passed, the cooled part may be ejected from the mold by the ejection system, which is attached to the rear half of the mold. When the mold is opened, a mechanism is used to push the part out of the mold.

  • a female worker is checking plastic parts besides an injection machine

    Step 5: Checking

    With the help of automated manipulators, we reduced the time our workers needed for opening and closing the door. They inspect the plastic parts visually before packaging.


Automated Production
is not Enough.

We know it is critical to use highly automated machines to reach high-volume productivity, while an inspection tour is also neccesary to prevent a machine malfunction and material wastes.

Our injection workers will check the machines and the plastic parts every 2 hours.

Once a problem is detected, we will shut down the machine immediately to have a full examination and analysis.

a female injection worker is conducting an hourly check