A machine rated for 68 tonnes can produce 68 tonnes of clamping pressure. This pressure maintains the mould closed throughout the injection process. Too much or too little pressure might result in quality concerns. Too much or too little pressure can also result in flashing, which is when extra material forms on the component edge. Pressure also affects the viscosity of the plastic... https://mctgroups.blogspot.com/2025/03/basics-of-plastic-injection-molding.html