For Boy Machines Inc., NPE2009 marked the North American introduction of the company's energy-sipping E-series of injection molding machines and the line of tiny XS presses, with just 11 tons of clamping force.
The Exton, Pa., company showed a total of nine injection presses at the Chicago show, held June 22-26.
Boy grouped five XS machines together in a production cell at its NPE booth to demonstrate that the small press is ideally suited for single-cavity, sprueless injection molding. The presses molded components of a personal-care kit, which included a two-part case and three items. The setup had the parts free-fall to a common conveyor, which moved them to a table for assembly and distribution to NPE visitors.
In a micromolding application that featured a vibratory sprue separator, a sixth Boy XS molded tiny gear housings.
A vertical Boy XSV with a vertical clamp and vertical injection unit made nail files to demonstrate insert molding.
Boy also rolled out its E-series to North America by showing a 99-ton Boy 90E. The U.S. company's European parent, Dr. Boy GmbH & Co. KG of Neustadt-Fernthal, near Bonn, Germany, first showed the energy-efficient machine at the 2008 Fakuma show, held in October in Friedrichshafen, Germany.
The presses use a servoelectric motor drive to run the hydraulic pump. That means the motor only delivers power to the pump when needed; it switches off when no pumping action is required.
At NPE, Boy ran a three-plate, four-cavity cap mold on a 90E press with 99 tons of clamping force. Boy claims the pump uses 50 percent less energy than Boy's standard hydraulic pumps and runs more quietly.
Real-time energy consumption was monitored and displayed on a large screen at Boy's booth.
Boy also demonstrated liquid silicone rubber molding on a Boy 35A press with 38.6 tons of clamping force.
All nine Boys were equipped with the Procan Alpha control. Booth visitors could observe remote monitoring and control via an Internet connection to an injection press that was molding parts at Boy's U.S. headquarters in Exton.