A special all-electric machine designed for producing light-guide plates (used in cell phones) as thin as 0.3 mm was unveiled by Niigata Machine Techno Co. Ltd., at the Platex show in Japan in June. (Niigata is represented here by Niigata Plastic Machinery, Div. of Jitsugyo America Inc., Itasca, Ill.) Its new MD 50X-HP AP model is a 55-ton press with Niigata's Active Press Control system and injection-compression capability. At the show, the unit produced 2.8-in., 0.3-mm-thick polycarbonate light-guide plates in two cavities with a 13-sec cycle. Niigata will also offer a 500-ton model MD 450 S-IV AP that can produce 15-in., 0.6-mm plates and a 735-ton MD 650 S-IV AP press that can make 22-in., 1-mm plates. Niigata also introduced an all-electric, vertical rotary machine, model MDVR 100Xi 2.2. The vertical-injection/verticalclamp unit is designed for both conventional and low-speed/low-pressure molding. It has 2.2-oz shot capacity and injection speeds to 260 mm/sec. A larger (1060-mm) rotary table with a bigger motor indexes in 1.1 sec, 70% faster than the previous design. It handles molds up to 460 mm square. The system also includes Niigata's Long Holding Press capability, which allows for long hold and pack times without burning out the electric motor. Tel: (630) 875-0202 . www.niigata-injection.com
Niigata Engineering Co.
Daiichi Jitsugyo America Inc.
245 Spring Lake Rd. Itasca, IL 60143
Phone (630) 875-0202 Fax (630) 875-0422
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