Injection Time Calculator Online

The Injection Time Calculator is a vital instrument in the field of injection molding. It serves a fundamental purpose: calculating the time it takes to inject a specific volume of plastic material into a mold. This time, known as “injection time,” directly affects the quality and efficiency of the molding process. The primary goal is to ensure that the molten plastic fills the mold completely and uniformly.

The Formula of Injection Time Calculator

The formula for calculating injection time is relatively straightforward:

t_injection = (V_plastic / Q_injection) * 60

Now, let’s break down the variables involved:

• V_plastic: This represents the volume of plastic to be injected. in either cubic inches (in³) or cubic centimeters (cm³).
• Q_injection: The injection rate denotes the speed at which plastic is injected into the mold. It’s measured in either cubic inches per second (in³/s) or cubic centimeters per second (cm³/s).

This information is invaluable for ensuring consistent and high-quality molding results.

General Terms for Quick Reference

Term	Abbreviation
Cubic Inches (in³)	V_plastic
Cubic Centimeters (cm³)	Q_injection
Cubic Inches/Sec (in³/s)	Injection Rate
Cubic Centimeters/Sec (cm³/s)	Injection Rate
Injection Time	t_injection

Example of Injection Time Calculator

Let’s illustrate the practical application of the Injection Time Calculator with an example:

Suppose you have a molding job that requires injecting 100 cubic centimeters (cm³) of plastic material at an injection rate of 10 cubic centimeters per second (cm³/s). Using the formula, you can calculate the injection time as follows:

t_injection = (100 cm³ / 10 cm³/s) * 60 = 600 seconds

So, it would take 600 seconds to fill the mold with the specified plastic material.

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