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Magnetic platen systems are catching on with a growing range of injection molders and are gaining po

 

Magnetic platen systems are catching on with a growing range of injection molders and are gaining popularity on large presses for the first time. Improved designs have calmed former safety concerns, and molders are eyeing magnetics as a simpler alternative to hydraulic or mechanical systems for quick mold change (QMC) and Just-in-Time (JIT) molding.
For years, fear kept the use of magnetic mold mounting systems on the sidelines as a competitor to mechanical or hydraulic mold-clamping systems. Molders were simply more comfortable with the visual assurance of physical clamping devices supporting the mold. Accidents in the field limited use of magnetics in injection molding, despite their widespread use in toolmaking.
"In the early 1990s, on three separate and isolated occasions in different plants, magnets let go of the mold," says Simon Barton, product development manager of magnetic QMC systems for Staubli. "Each of these companies has not used magnets since, although in all instances, the magnet was not really to blame. In all three cases, it was operator error." Suppliers say that better understanding of proper use and maintenance of magnets would have prevented these accidents. As a result, newer magnetic systems are engineered to prevent operator error.

                                                      Transcribing from yahoo.com

http://www.electropermanentmagnets.com

 
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