Variable Frequency Converter 7.5KW-450KW

Specifically developed for the hydraulic system of injection molding machines, it addresses the high energy consumption pain point of traditional injection molding machines, which is characterized by "constant speed operation of a fixed displacement pump and pressure relief through a relief valve". By adopting the torque control mode, the motor speed of the injection molding machine is dynamically adjusted according to different processes such as "mold locking - injection - pressure holding - cooling". For instance, during the pressure holding stage, the motor speed is reduced from 50Hz to 10Hz, only maintaining the low-voltage demand, achieving an electrification rate of 25% to 40%. After the transformation of a 110kW injection molding machine in a certain plastic factory, The equipment investment was recovered within half a year. Supports 0.01Hz speed regulation. During the injection stage, the flow of hydraulic oil can be precisely controlled, ensuring uniform density of plastic par…