DUSSELDORF, GERMANY — A British supplier of gas-assisted injection molding systems, Gas Injection Ltd., has jumped into the machinery business.
At K'98 in Dusseldorf, Gas Injection announced what it calls the first dedicated gas-assisted molding press. Chairman Terry Pearson asks why processors using gas-assisted molding should have to pay for the extra, unneeded features of a conventional high-pressure machine converted to gas.
Pearson said the Gas Injection molding press costs about the same as a standard machine and less than one converted to gas.
Gas-assisted molding, he said, ``does not require high pressures and fast cycling technology of conventional injection molding machines today — it does require good control of the plastic shot volume and controllable injection speeds.''
The machines come in clamping forces of 22-660 tons. Nantwich, England-based Gas Injection has contracted with a machine supplier that Pearson declined to identify. Interviewed after K'98, he said an announcement will be coming soon.
Because the Gas Injection machine molds with low pressure, a 660-ton press can mold a part that normally would require a press with twice as much clamping force, Pearson said. To accommodate the relatively big parts, the Gas Injection models have extra-large platens, he said.