Research
Clamping force a mold needs
To stay shut, a mold needs 2 to 5 tons of force per square inch of the part. More adds nothing.
Industry source
Resin suppliers' processing guides
What a smaller press must fit
A smaller press must also have room for the mold and melt enough plastic for each shot.
Industry source
Press manufacturers' specification sheets
Electricity use by press size
A larger press uses more electricity every hour it runs, whatever mold is in it.
Our estimate
Our estimate, from the motor and heater sizes press manufacturers publish