New Cavity Pressure Sensor is Ideal for High Cavitation Molds with Small and Tightly Packed Ejector Pins

Press Release Summary:

  • Feature 6 mm diameter and height, flexible, order-to-length cables and not susceptible to moisture or contamination
  • Available in 50 and 250 pounds for use with ejector pins up to 1/8-inch (3 mm) and up to ¼ inch (6 mm) diameter respectively
  • Allows injection molders to connect up to eight strain gage sensors

Original Press Release:

New Product Alert: 250 lb 6 mm Cavity Pressure Sensor Now Available

The 6 mm Strain Gage sensor is the smallest injection molding pressure sensor of its kind, matching the size of the Piezoelectric 9211 with greater ease of use and a lower price point.

Traverse City, MI: RJG’s new 250 lb 6 mm cavity pressure sensor is now released to the public. The 6 mm sensor is ideal for high cavitation molds with small, tightly packed ejector pins. It allows customers to measure cavity pressure in order to improve quality and reduce costs.

There are now two models available, one rated to 50 pounds for use with the ejector pins up to 1/8 inch (3 mm) diameter, and the newest one is rated to 250 pounds for pins up to ¼ inch (6 mm) diameter.

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 the use in molds that may have tight clusters of pins with limited room.

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% below comparable Piezo Multi-Channel Systems. Unlike Piezo, though, the connector cables can be bent and folded without damage, making them more flexible and easier to maneuver around obstacles.

Features of the 6 mm sensor include:

  • 6 mm diameter and height
  • Flexible, robust, order-to-length cables
  • Not susceptible to moisture or contamination

“Smaller sensors are becoming more popular as part complexity and cavitation increases,” 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 in the mold. 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.

About RJG, Inc.:

RJG, Inc. is a recognized international leader in injection molding training, technology and resources. Their technology revolutionized the industry by providing standardized parts processing and advanced diagnostic tools to injection molders. In addition, RJG provides both general interest and specialized training for all levels of injection molding professionals across the globe.

Samantha L. Peterson

Marketing Coordinator

RJG, Inc.


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