How does Delta’s energy saving HES series system achieve greater energy saving results compared to a traditional hydraulic system?A traditional hydraulic system implements an induction motor which does not have an adjustable speed. Once you turn on the motor it will operate at full speed at all times. Delta’s HES system incorporates out VFD-VJ Series AC motor drive with our servo motor, which precisely controls motor speed for all injection stages. This provides outstanding energy savings especially at the pressure holding and mold cooling stages. In addition to saving energy, the HES system ensures higher product quality by providing precise control during operation.
