Injection Molding Clamping Force & Tonnage Calculator
Determine machine press clamping tonnage (US tons and metric tonnes), total projected parting line area, cavity pressure, and flash prevention margins.
Part Geometry & Mold Cavitation
Hot runner = 0%; Cold runner = 10-20%
Polymer Resin & Average Cavity Pressure
Standard practice: 10% to 20%
Required Machine Clamping Tonnage
Required Clamping Force (US Tons):
—
— Metric Tonnes (kN)
Recommended Machine Class:
—
With —% safety margin
Total Projected Mold Area:
— in²
—
Specific Clamping Index:
— tons/in²
Parting Line Flash Assessment:
—