Husky Injection Molding Systems Ltd. launched its Ultra Sidegate hot-runner technology, aimed at small, deep-draw parts such as pipettes and syringe barrels.
Normally, that type of part would need to run in a cold-runner mold, Martin Baumann, business manager for hot runners, said at the Fakuma show, held Oct. 18-22 in Friedrichshafen, Germany.
But medical and other precision small parts often cannot have a gate vestige, showing where the plastic entered the part. The Ultra SideGate allows for high-cavitation molds with a small footprint. The hot-runner system offers tip-to-tip spacing as small as 55 millimeters, and a 75 percent reduction in nozzle-housing area.
The technology allows better access to the individual tips without requiring the mold to be removed from the injection press.
By allowing a single-piece cavity in the design of the mold, quality issues that can accompany split-cavity designs are avoided, Husky said.
At Fakuma, Husky was molding a 0.5-gram medical cap with a 1.25mm wall thickness from polyoxymethylene on a 16-cavity mold.
Husky is based in Bolton, Ontario.
Tel. 905-951-5000, fax 905-951-5320.