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December 1, 2001

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Two-Platen Machine Is Almost 'All-Electric'

December, 2001

2001ding.jpgInjection Molder:

Two-PlatenMachine IsAlmost 'All-Electric'

1201-sota-1.jpgKrauss-Maffei showed its new Eltec injection molding machine, which is also said to offer "all the benefits of two-platen technology." While it uses six electric servomotors to run the other functions, the Eltec does require two liters of oil to finish off the clamping, thus not adding up to the entire 'all-electric' title. The machines are available with 50-, 80-, 110- and 150-ton clamp forces.

In engineering the Eltec, Krauss-Maffei says it uses some of the same 'popular' features from its existing C Series injection molding machines. Chief among them is a two-platen clamp system that allows for a compact design and easy access to the mold area for service and mold changing, as wellas for different ejector systems. The clamp system design is said to provide plenty of space for auxiliary equipment and to allow part removal from three sides.

'Extremely tight' molding tolerances are achieved due to the platen parallelism guaranteed by high-precision, linear guides for the moving platen. The drive system for the clamp unit is reportedly completely encapsulated, so Eltec machines can be used for cleanroom production.

A direct-drive, precision-regulated, high-torque synchronous motor is said to guarantee the required plasticating and injection performance. Within each of the four tonnages, customers have a choice of five injection units and four screw diameters per injection unit. The Eltec delivers injection pressure from 21,750 to 43,500 psi at injection speeds from 4 to 12 in./sec.

Krauss-Maffei
Florence, KY Circle 118

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