Total Tonnage of Injection Moulding Machines
What should be the Ideal relationship between Total Tonnage of Injection Moulding Machines in any Injection Moulding shop and Tons of Plastic Material Processed monthly?
3.0 to 3.5 tonnes For PE,PP,ABS, Acetal, Acrylics
3.5 to 4.5 tonnes For material Nylon, polycabonate, polyester,
Material viscosity is also one of factor that considered
This is totally dependant on the viscosity of the material, the flow path length, wall section, type of material, mould temperature, processing temperature. I have found as little as 1.5ton per square inch is adequate but have also found that on long flowpath thinwall products it can be neeccessary to go to 5 ton per square inch.
if you have to much cavities for example you need also more
Pressure of course.