Servodriven injection molding machine promises lower energy consumption than standard hybrids

A three-phase induction motor and a variable-capacity piston pump allow a new series of injection molding machines to reportedly consume less energy than hybrid systems, and up to 40% less power than conventional hydraulic systems. Mitsubishi's MMX Series feature what the company calls the Smart Hybrid Hydraulic System wherein a highly responsive servomotor stabilizes hydraulic oil flow and pressure to save energy. In addition, the simplified piping configuration enables reduced maintenance and enclosed pumping cuts down on noise emissions.

The MMX features uniform 4-point 2-platen tiebar clamping, which Mitsubishi says allows it to tolerates unbalanced loads and offer the same reliability as much larger units. The two-platen design saves space, while allowing wider platens. The light, yet rigid platen design of the MMX incorporates MHI's analytic technologies. Linear rails support the bearing housing for more stable injection and low energy consumption. Hydraulic cylinders are positioned at both sides of the screw, reducing the injection unit's size....

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