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LSR molding. (Equipment).

The Model 384 liquid silicone injection molding machine is specifically designed to mold micro to medium sized LSR parts with extreme accuracy and reliability, according to the company. The patented plunger type injection technology was originally developed to meet the requirements of intraoccular lens (IOL) manufacturers and utilizes no barrel screw. The small footprint, horizontal injection Model 384 press is said to be ideal for medical applications where particulates and contamination are of great concern. Recent enhancements are said to further simplify validation processing. The injection assembly is cooled right through the tip of the injector nozzle, where contact with the heated mold occurs, to prevent gumming of LSR material (FDA approved method). The standard Model 384 machines handle mold sizes of 4" x 4" up to 6" x 6", and feature six ton vertical clamp force, as well as fast and easy material changeover, cleaning and setup, according to the company. Silicone is fed from a static mixer or on a batch basis utilizing cooled, pre-filled disposable cartridges (in regular 6, 12 or 20 oz. sizes). Standard models deliver shot sizes of up to 3 cc, 10 cc or 15 cc. With a mix metering unit hookup, shots of 80 to 100 cc can be obtained. A PLC-based controller with a movable pendant touchscreen operator interface is included. Adjustable, programmable parameters such as temperature control, cure time and injection are monitored and recipes stored with parameter presets. (Kuntz Manufacturing, 2614 S. Rousselle St., Santa Ana, CA 92707)

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Title Annotation:liquid silicone injection molding machine, Kuntz Manufacturing
Comment:LSR molding. (Equipment).(liquid silicone injection molding machine, Kuntz Manufacturing)
Publication:Rubber World
Article Type:Brief Article
Geographic Code:1USA
Date:Sep 22, 2001
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