Molding Workshops

Register for a Molding Workshop

Fundamentals of Systematic Molding

September 7-10
November 8-11

Register for a Fundamentals of Systematic Molding Workshop

North Education Center, Room 973 
Time: 8 am. - 5 pm. 
Cost: $1,395
Trainer: Ben Wilshusen, Certified RJG Trainer for Central Community College
Trainer: Craig Potthast, Certified RJG Trainer for Central Community College 

What is Fundamentals of Systematic Molding? 

Fundamentals of Systematic Molding is the foundation for all RJG training sessions. Through a combination of classroom instruction and interactive machine investigations, students completing the course will have a better understanding of how to develop a machine-independent process, how to make data-driven improvements to existing processes, and how to effectively troubleshoot using scientific and systematic approaches to plastic injection molding. 

Is Fundamentals of Systematic Molding for Me?

Fundamentals of Systematic Molding is right for anyone who is involved in the injection molding process. By training engineers, management, and support alike, the entire plant is able to speak the same language and run more smoothly than ever. 

Topics we will cover: 

  • Mold and part design considerations 
  • The four plastic variables 
  • The molding system 
  • The molding problem, simply stated 
  • Processing from plastic’s point of view 
  • Introduction to instrumentation strategies
  • Molding Lab investigations of machine and process
Injection Molding Essentials

August 24-25
November 2-3

Register for an Injection Molding Essentials Workshop

North Education Center, Room 973 
Time: 8 a.m. - 5 p.m. 
Cost: $795
Trainer: Ben Wilshusen, Certified RJG Trainer for CCC
Trainer: Craig Potthast, Certified RJG Trainer for CCC

What is Injection Molding Essentials? 

Injection Molding Essentials provided a solid foundation for understanding the injection molding process and the critical practice of good production techniques. Participants learn the elements and variables involved in the injection molding process as well as key terminology that will help them communicate and solve molding problems. 

Is Injection molding essentials for me?

Injection molding essentials is right for anyone who is new to injection molding or with no formal education in the science of polymer behavior. 

Topics we will cover: 

  • Nature and properties of plastics 
  • Basic injection molding 
  • The closure, the injection unit and the mold 
  • Elements of the cycle 
  • Molding for quality 
  • Introduction to instrumented molding 
  • How to avoid common problems in molding 
Decoupled Molding Workshop

September 14-16
November 16-18

Register for a Decoupled Molding Workshop

North Education Center, Room 973 
Time: 8 am. - 5 pm. 
Cost: $1,495
Trainer: Ben Wilshusen, Certified RJG Trainer for CCC
Trainer: Craig Potthast, Certified RJG Trainer for CCC

This workshop is designed to provide students with valuable hands-on machine time to reinforce the methodologies they learned in Systematic Molding. It offers the exact same exercises as Master Molder® I, but with half the practice time and none of the testing. Companies that are not allowed by their customers to make changes to processes can substitute the Template Match Workshop for the DECOUPLED MOLDING® Workshop.

Attendees will acquire the knowledge they need to dissect and rebuild the process using data-driven methodologies, then document the return on investment and indicate potential improvement areas using the current condition of the machine and mold. The end result will be the most robust process possible with the current conditions. For those interested in using this training to achieve real-world process improvement ROI, an RJG consultant may be hired at a later date to mentor you on one or more of the machines at your facility.

Note: Because this is a public course, we cannot work with real-world process targets. An in-plant, ROI-driven version of the DECOUPLED MOLDING® Workshop is also available for groups of four or more students who have completed Systematic Molding. The last day includes a student report-out to management with ROI data.

Course Highlights

  • Machine qualification tests
    • Load sensitivity
    • Pressure response
    • Injection speed linearity
    • Dynamic Check Ring Repeatability Test
    • Clamp/Mold deflection study
  • Mold performance requirements and weakness identification
    • Pressure loss test
    • Perform a gate seal study to determine optimal hold time
    • Identify the cavity balance at all injection speeds
    • Create a temperature map of the mold
  • Validate machine and mold capabilities
  • Build and document a robust Decoupled process with the current machine and mold conditions 

Course Prerequisites

Prior attendance at an RJG Systematic Molding or Fundamentals of Systematic Molding within one (1) year of the first day of the DECOUPLED MOLDING® Workshop is required. It is strongly recommended that the participant has completed RJG’s Math for Molders eLearning course and has had hands-on machine experience prior to attending this course.

Master Molder 1

August 9-20
October 4-15
November 29 - December 10

Register for a Master Molder 1 Workshop

North Education Center, Room 973 
Time: 8 a.m. - 5 p.m. 
Cost: $3,895
Trainer: Ben Wilshusen, Certified RJG Trainer for CCC

Become a problem solver and a problem preventer!

This is the industry’s standard demand for training! The Master Molder® I certification is designed for the process technician, engineer, or manager who needs to understand and demonstrate injection molding skills at the machine. Participants will be able to demonstrate the development of a Decoupled II process. Anyone responsible for implementing a processing strategy in their plant, or anyone held accountable for quality issues are prime candidates for this training.

There is a reason you see the request for ~~Master Molder® certification in all the want ads. Students learn to apply methods, strategies, and techniques of injection molding from the plastic’s point of view, all taught in a real-world production floor environment. This hands-on, in-depth training enables students to leave with solid skills that can be applied immediately in their facility.

Course Highlights

  • Materials, molds, machines
  • Hydraulics and instrumentation
  • Polymer behavior
  • Process development using DECOUPLED MOLDING® techniques
  • Process documentation
  • Data interpretation

Course length: 2 weeks

This course is available publicly or also as an in-plant course.

Course Prerequisites

Before registering for the Master Molder® I class, we advise taking the Systematic Molding class or the free, confidential online assessment.

The registration fee includes interactive instruction, printed materials, and breaks. Lunch is on your own. Courses with low enrollment may be canceled.


Sue Baer
1-877-222-0780, ext. 1425

Cancellation Policy

A notice of 21 business days is required to receive a full refund. Individuals unable to attend may delegate a substitute anytime prior to the workshop without penalty. Failure to attend, without notice of cancellation, will result in billing to you or your employer.