Injection Molding Clamp Force Requirements

Injection Molding Clamp Force Requirements

injection mold clamping forceIn plastic injection molding, clamping force is required to hold the mold halves together while they’re being filled, under pressure, with the molten plastic.

The force required by the injection molding machine to hold the mold together is expressed in clamp tonnage. A “200 ton” machine, for example, is capable of creating a clamping force equivalent to a total of 200 tons.

So, how do you know how much clamp tonnage, and therefore which injection molding machine, is required for a particular injection molding project?

The answer depends on several factors, such as the size of the part and the flow rate of the material being used.

For an understanding of the factors that go into determining the clamping force required for injection molding a particular part, please visit our Clamp Tonnage page.

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