The Japanese parent of Nissei America, Inc., Anaheim, Calif., has come out with injection machines tailored for molding polylactic acid (PLA) biopolymer. The press is designed to allow molding of more heat-resistant grades of PLA (able to withstand 120 C/248 F instead of the usual 60 C/140 F), which reportedly suffer from poor releasability. Nissei utilizes undisclosed mold technology to ensure release while also optimizing cooling for faster cycles and accommodating the resin’s limited melt thermal stability.
Nissei offers N-PLAjet presses in the all-electric NEX Series (16.5 to 507 tons) or hybrid FNX Series (89 to 501 tons). The patented system includes the special molding machine, auxiliaries, production license, and special mold know-how. The press comes with a mold-temperature controller, mold sensors and direct control system for melt temperature and pressure, air-blow system and hot-runner valve-gate control interface.
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