Sumitomo (SHI) Demag introduced its ultra-high speed hybrid injection press, the El-Exis-SP, to North American processors at NPE2012.
Sumitomo demonstrated two of the new presses in Orlando, Fla. One was part of an in-mold labeling cell that featured complete coverage of the plastic surface on thin-wall containers.
The El-Exis SP line comes in clamping forces ranging from 165-825 tons. The SP stands for “speed-performance,” and Sumitomo engineers developed the press for high-speed applications such as thin-wall packaging, beverage closures, cartridges, plant pots and buckets.
The hybrid design uses hydraulic accumulator injection, with servo-valves. That means the SP line can hit up to 1,000-millimeters per second, and accelerate from zero to 800-mm per second in just 25 milliseconds, the company said. That is a 30 percent increase in injection speeds over the predecessor, El-Exis S model.
SP presses use electric screw drive to cut energy use. A clamping unit with servo-electric drive and hydrostatic transmission gives fast, energy-efficient mold open and close.
Sumitomo Demag is based in Norcross, Ga.
Tel. 678-892-7900, fax 770-441-9168.