How are melt pump speed and output calculated?

1, the melt pump speed per minute: RPM = n * f1/50/i; n is the rated speed of the motor; f1 is the frequency converter; i is the speed ratio of the gearbox.

Example: 4-level motor rated speed n is 1450rpm, when the frequency converter f1 is 30HZ, speed ratio i is 29. melt pump speed per minute = 1450 * 30/50/29 = 30rpm

2, the melt pump hourly output: KG / H = CC * rpm * 60 * ρ/1000; CC for the melt pump displacement; rpm for the melt pump speed per minute; ρ for the melt density.

Example: 100CC melt pump (melt pump displacement per revolution is 100ml), melt pump speed of 30 rpm, the density of the material is 1. 100CC melt pump hourly output = 100 * 30 * 60 * 1/1000 = 180KG/H.

Note: The above melt pump output is the theoretical output, the actual production will be affected by the pump's volumetric efficiency, import and export pressure value, circulation channel and other factors.

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