Nissei Plastic Industrial Co. Ltd. shipped its 90,000th machine in January, and in June the Japanese company took the ``NEX'' step at NPE 2003 in Chicago.
Nissei rolled out its new Elject NEX series of all-electric injection presses. Four of the eight presses on display were the NEX line, which is replacing the Elject ES series of electric machines.
Masahiro Ueno, general manager of exports, said Nissei showed a prototype of the NEX at last year's IPF show in Japan.
With four electric servomotors, the machines use a belt and ball screw to transmit circular motion of the motors to linear motion to run the press. The clamping forces run from 33-507 tons. NEX machines will be available in the United States in October.
Nagano, Japan-based Nissei is targeting markets that include automotive, packaging and medical. Its NPE demonstrations included cups from a six-cavity mold with a 3.4-second cycle, and a set of small utility cases. The NEX presses have many options - 22 models with nine types of mold-clamping mechanisms and 13 types of injection units. Features include:
* Improved temperature control in the rear section of the barrel, including the feed section, through five temperature zones.
* Three types of injection specifications are provided - standard, high-speed and heavy-load.
* A new type of controller, called TACT, which Nissei said permits high-speed control of injection scanning time. The screen can be tilted to any angle for easier viewing.
* A new, ``flat-clamp'' mold-clamping mechanism for high-cycle precision, thanks to a very rigid die plate.
Nissei also said the press is more energy-efficient.
In other machinery news at NPE, Nissei molded small, polypropylene dinner plates on a hydraulic-clamp AN1-series press in a new size - 197 tons. The cycle time is 5.5 seconds. A 306-ton AN1 ran a 16-cavity mold to make PP lids for potato chip cans on a 9.5-second cycle.
A robot-equipped, 171-ton, vertical-clamp press with horizontal injection insert molded automotive fan shrouds.
Micromolding fans, take note: A press with 3.3 tons of clamping force turned out tiny battery gaskets at Nissei's booth.
In business news, President Hozumi Yoda said he expects Nissei to sell about 3,200 presses this year - up 14 percent from 2,805 in 2002. One big reason is Nissei's more aggressive effort to sell optical-disc molding machines into China and other Asian nations, he said. It also has improved the disc molds it is selling with the machines.
Yoda said Nissei remains committed to assembling presses only in Japan - though it has set up a subsidiary in Shanghai to handle spare parts and service. Nissei is sourcing some parts from China, such as castings, but Yoda said the company has no plans to follow other Japanese press makers that have set up assembly factories in China.
He said Nissei can control quality better with domestic assembly. It already is able to serve China with advanced-technology presses built in Japan, he added.