How To Estimate Weight Of An Injection Mold Tool

For those of you who do not have scales here is an easy way to find mold weight.
Calculation For Metric Units (cm)
Measure overall dimensions of the mold.
Refer to above image of mold for length, width & height.
For example:
If Length=80cm Width=90cm Height=45cm
and Weight(kgs)= Length*Width*Height*DensityOfSteel where density is 7.9 grams/cm^3 for tool steel (P20,H13)
then Weight(kgs)= (80*90*45*7.9)/1000= 2,560 kgs
Calculation For Imperial Units (Inches)
Measure overall dimensions of the mold.
Refer to above image of mold for length, width & height.
For example:
If Length=25 inch Width=35 inch Height=20 inch
and Weight(lbs)= Length*Width*Height*DensityOfSteel where density is 0.28 lbs/inch^3 for tool steel (P20,H13)
then Weight(kgs)= (25*35*20*0.28)= 4,900 lbs
All calculations & technical data are for comparison purposes only and are NOT for design or safe working practices. It is derived from sources that we believe to be accurate, but can NOT guarantee its validity. Your specific application should NOT be undertaken without independent evaluation for accuracy.
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