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Injection molding: Electric IMM cuts cycle time

Nissei has developed a specialized electric injection molding machine for large-sized light guide plates and a special mold, both of which are used to produce liquid crystal displays. The specialized ...


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May 1, 2002 by Canadian Plastics


Nissei has developed a specialized electric injection molding machine for large-sized light guide plates and a special mold, both of which are used to produce liquid crystal displays. The specialized electric molding machine has a mold clamping force of 460 tons, the largest among Nissei electric machines, and is best suited to the molding of light guide plates for notebook computers. Injection volume is 403 cm3.

Nissei reports that the molding time for large-sized light guide plates (14 to 15 in.), formerly 50 to 70 seconds, has been reduced to a high cycle of less than 30 seconds. The machines also boast energy savings of 35% to 60% compared with hydraulic molding machines.

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