how to calculate the clamping force simply
Generally, when we see a simple product, we can try to calculate the needed clamping force of the injection molding machine simply like below:
Clamping force=common constant for clamping force calculation * vertical projection area of product on the mold platen
F=KS
F-clamping force of injection molding machine, ton
S-vertical projection area of product on the mold platen, cm2
K-common constant of different plastic material, ton/cm2
Below is the table of the common constant of different plastic material
Plastic material | PE | PP | PS | ABS | PA | Others |
K/(t/cm2) | 0.32 | 0.32 | 0.32 | 0.32-0.48 | 0.64*0.72 | 0.64-0.8 |