A new line of large hybrid-electric coinjection machines designed for automotive glazing was unveiled at the IPF show in Tokyo by Mitsubishi (represented here by MHI Injection Molding Machinery Inc., Bensenville, Ill.). Its emR line ranges from 1540 to 3300 tons and has a horizontal rotary table and two opposing injection units, with all major motions driven by servomotors. Each injection unit has two direct-drive, high-speed, servos directly coupled to the ballscrews, along with Mac 8 controls. Mitsubishi used Fanuc servomotors for its belt-driven functions and its own design for the direct drives. A built-in servopump hydraulic system achieves clamping and core pull. The system operates the filling and compression steps simultaneously to produce low-stress glazing parts.
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