Author Archives

I was just asked this question… Jason How can I determine the proper size chiller to cool my parts efficiently?  My Response To determine the correct size chiller you must first calculate the cooling time, total amount of heat to be removed, the cooling power, the cooling power per line, and the required volumetric flow […]

Recently I have had many questions by phone, email, and Linked-In pertaining to mold filling for open-loop molding machines. As a result, I wish to clarify the basic difference between the optimal filling strategy for closed-loop molding machines vs. open-loop molding machines with respect to compensating for viscosity variations to maintain process consistency… 1st Stage Fill Closed-Loop […]

I received this follow-up question from one of our previous blog entries… Chris I don’t understand why it’s best to be full at the end of 1st stage on an open loop machine. Our open loop machines have 1st stage and then total injection forward time which is basically filling and packing time together. We are […]

I was just asked the question… Dave How can I calculate the intensification ratio of my injection molding machine if I do not know my Hydraulic Cylinder Diameter? My Response You can calculate the Intensification Ratio of your machine two ways if you do not know the hydraulic cylinder diameter. The first way to calculate […]

I was recently asked… Brian If I have the option to design my mold for vertical or parting line injection which should I choose assuming I use a vertical machine? My Response If your tool is designed for vertical injection in a vertical molding machine you are not limiting yourself to using a vertical machine. […]