Enter the shot weight (mass per cycle), the cycle time, and/or the output into the calculator to determine the production output rate in kilograms per hour. This calculator is intended for cyclic processes where a consistent mass is produced each cycle (for example, injection molding), not continuous extrusion throughput.
Output Rate (kg/h) Formula
The following formula is used to calculate the output rate for a cyclic process (mass per cycle divided by cycle time).
O = (SW / 1000) * (3600 / CT)
Variables:
- O is the output (kg/hour)
- SW is the shot weight (grams)
- CT is the cycle time (seconds)
To calculate the output rate, divide the shot weight by 1000 to convert it to kilograms, then multiply by the number of cycles in an hour (3600 seconds divided by the cycle time).
What is Output Rate (kg/h)?
Output rate is the mass of material produced per unit time, commonly expressed as kilograms per hour (kg/h). In a cyclic process, the output rate is determined by the mass produced each cycle (shot weight) and how long each cycle takes (cycle time). Continuous extrusion throughput is also measured in kg/h, but it generally depends on factors like screw design, material, temperatures, and screw speed, and is not typically calculated from “shot weight” and “cycle time.”
How to Calculate Output Rate (kg/h)?
The following steps outline how to calculate the output rate.
- First, determine the shot weight (SW) in grams (mass produced per cycle).
- Next, determine the cycle time (CT) in seconds.
- Use the formula from above: O = (SW / 1000) * (3600 / CT).
- Finally, calculate the output rate (O) in kilograms per hour.
- After inserting the variables and calculating the result, check your answer with the calculator above.
Example Problem :
Use the following variables as an example problem to test your knowledge.
shot weight (SW) = 150 grams
cycle time (CT) = 30 seconds
