Sponsored By
Clare Goldsberry

October 14, 2016

3 Min Read
RJG introduces low-cost 6-mm cavity pressure sensor

Molders are always looking for new and better ways to process plastics that will improve quality and reduce costs. RJG (Traverse City, MI) will showcase just such a product at K 2016 in hall 13 at stand D90: A 6-mm sensor that is ideal for high-cavitation molds with small, tightly packed ejector pins.

Two models are available: One is rated to 50 pounds for use with ejector pins up to 2 mm diameter, and the second is rated to 250 pounds for pins up to 4.5 mm in diameter. The 50-pound model will be available in a limited release this month; the 250-pound model will be available during the first quarter of 2017.

The 6-mm sensor is a robust, indirect (under the pin) pressure sensor that works in conjunction with the eDART system to assist molders in diagnosing processes and automatically sorting suspect parts. The 6-mm sensor head is the smallest strain gage sensor available, permitting its use in molds with tight clusters of pins.

“With our technology, processors are able to turn sensor data into actionable information, know which processes in the plant need attention, correct problems as they arise, and make informed decisions to put a process back to template,” said Ken Fassett, RJG International Business Development. “In addition, our TZero department works to break down silos and improve cross-department communication and transparency.”

The new model is designed with a sensor head that matches the dimension and installation pocket of the Piezoelectric 9211 6-mm button. That means it contains all of the capability of the piezo at a more cost effective price, approximately 20% less than comparable piezo multi-channel systems. Unlike piezo, though, the connector cables can be bent and folded without causing any damage, making them more flexible and easier to maneuver around obstacles,” RJG explained in its information.

“Smaller sensors are becoming more popular as part complexity and cavitation increase,” said Mike Groleau, Project Manager at RJG. “Our new sensor provides an alternative to the current piezo technology that reduces cost while improving data reliability.”

The 6-mm sensor is part of RJG’s Multi-Channel Strain Gage sensor line, which was designed to simplify in-mold installations for molds with four or more sensors and save real estate. This multi-channel cavity-pressure solution, unique to RJG, allows injection molders to connect up to eight strain gage sensors to one connection point on the mold.

This will be RJG’s sixth time attending the K Show. “We continue to attend because our products and strategic direction perfectly align with K’s vision of the future and Industry 4.0,” Fassett told PlasticsToday. “Our goal at K 2016 is to raise awareness of our newest products: The Hub, the CoPilot, and the 6-mm strain gage sensor. Scientific molding is quickly becoming an industry standard. We’ve proven the benefits of our training and technology time and again, and more molders are enlisting our help than ever before.

“We’re looking to the future and continuing to push the boundaries of molding every single day. That’s why we attend K,” said Fassett.

About the Author(s)

Clare Goldsberry

Until she retired in September 2021, Clare Goldsberry reported on the plastics industry for more than 30 years. In addition to the 10,000+ articles she has written, by her own estimation, she is the author of several books, including The Business of Injection Molding: How to succeed as a custom molder and Purchasing Injection Molds: A buyers guide. Goldsberry is a member of the Plastics Pioneers Association. She reflected on her long career in "Time to Say Good-Bye."

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