At RJG, our business is Helping Molders Succeed in supplying absolute quality parts to their customers.

We do this by providing process control systems, cavity pressure sensing technology, and process training to the injection molding industry.

The foundation of the RJG approach is built on a fundamental understanding of the key plastics variables, and processing from the plastic''s point of view.

This approach has become a key strategic component for many of today''s top injection molders.

Keywords: Cavity Pressure, Decoupled Molding, Process Control, Process Monitoring, Scientific Molding, Training

Additional Company Information:

The RJG Team

While other companies sell individual pieces, RJG is the only company that supplies you with comprehensive systems, a processing strategy, in-depth training and constant professional support.

All of RJG's processing tools are built on scientific molding principles and molding from the plastic's point of view. Our goal is for our customers to be the most sought after molders in the industry. RJG has been responsible for many innovations in the plastics industry, including, the first Scientific Molding seminar, the first commercial strain gauge cavity pressure sensors, DECOUPLED MOLDING techniques, The Insight System® - the plastic industry's first digital data acquisition platform and RJG 's Master Molder and Tryout Shop Certification programs.



The RJG Advantage

Our business is helping molders supply absolute quality parts to their customers. We do this by providing production and process control systems, cavity pressure sensing technology, and processing training to the injection molding industry. While other companies sell individual pieces, RJG is the only company that supplies you with comprehensive systems, a processing strategy, in-depth training and constant professional support.

- Comprehensive training & application assistance.
- Plant analysis & consulting services.
- Proven molding strategies.
- Professional customer support.
- Committed to our customers and the molding industry.

RJG Timeline

Present - RJG’s business is helping molders supply absolute quality to their customers. RJG provides process control systems, cavity pressure sensing technology, and processing training to the injection molding industry.

2004 - Introduced the Tryout Shop Certification Program.

2003 - Introduced first digital piezoelectric in-mold cavity pressure sensor.

2002 - Released Valve Gate Control system software, “Transfer Pin” cavity pressure mounting system, and method for measuring pressure under valve gate pins.

2001 - Developed “fail-safe” automated abnormal part containment.

2000 - Released The eDART System™ at NPE ~ The plastics industry’s first digital data acquisition platform with smart sensor technology ~ Demonstrated independent valve gate control system - began offering piezoelectric (as well as strain gauge) sensors.

1999 - RJG Associates and RJG Technologies merge to form RJG, Inc. - One company servicing the plastic industry with sensors, process control, and training solutions.

1998 - Introduced the RJG Master MolderSM Certification Program.

1996 - Introduced DARTVision (Windows based data acquisition).

1996-99 - Named to “Michigan Top 100 Fastest Growing Companies” for four consecutive years (Award was discontinued after 1999).

1991 - DART (Data Acquisition and Retrieval with Transducers) and DARTNet are introduced - PC Based Data Acquisition.

1989 - Developed 3-Stage Process Controller ~ CPC-3200.

1989 - Rod Co-founded RJG Technologies, Inc. - An equipment company supplying sensors and data acquisition systems.

1985 - Rod Groleau founded RJG Associates, Inc. - A training and consulting company - Developed the concepts of in mold rheology techniques, load sensitivity testing, and principles of rigorous mold tryouts as well as developed the concept of and coined the term DECOUPLED MOLDING.

1982 -Rod worked as Director of Technology at DME , where his responsibilities included expert process analysis using voice synthesis as the operating interface.

1969 - In 1969 Rod completed his MBA from Michigan State University and Co-Founded Control Process, Inc. where he developed the first commercial strain gauge cavity pressure sensor and manufactured the industry's first production monitoring system based on monitoring in-mold plastic variables. He remained with Control Process, Inc. through 1981.

1962 - Rod Groleau began work as a co-op student at the General Motors Institute, where he remained through his graduation in 1967. During this time Rod completed his thesis on Injection Molded Part Size Control.

Keywords: Cavity Pressure, Decoupled Molding, Process Control, Process Monitoring, Scientific Molding, Training

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