Supermaster 90 Ton

What Is Tonnage in an Injection Molding Machine? Simply put, tonnage is the amount of force needed to keep the tool closed during the injection process. This clamping force is measured in tons and is vital to know in order to select an appropriate injection molding machine.3. What is Injection Capacity or Short Capacity? Shot Capacity is the maximum volume/weight of material that the screw can inject into one operation cycle. The shot capacity is also known as "Injection Capacity"