Wilmington Machinery has formed a partnership with gas-assist equipment supplier Alliance Gas Systems Inc. to boost the pressure inside a new structural foam molding machine.
The Wilmington, N.C., company introduced a new large-shot, multinozzle structural foam molding machine at NPE 2003. The multinozzle machine uses structural gas injection to push more resin into the mold.
The machines use gas-assist units from Chesterfield, Mich.-based Alliance, processing 400-4,000 pounds per hour.
The partnership, called Structural Gas Injection or SGI, will combine gas-assist technologies with processes for injection, gas foaming, coinjection and compounding injection.
The machine introduced at the show uses a low-pressure gas system with a large platen. The gas passes through single or multiple nozzles and independent injectors, using Alliance's gas injection controller.
Wilmington also launched several blow molding machines at the show.
They include a rotary long-stroke blow molding system that is one of the smallest machines of any high-output machine on the market, said Jeff Newman, Wilmington vice president of sales and marketing.
The extrusion blow molding machine, only 6 feet in height, can make 300 bottles per minute, Newman said.
Wilmington also introduced a high-performance wheel system that can handle single or dual parisons and in-mold labeling applications.