Contact Form HP

Introduction To Hot Runner

Course Details

Instructor: Krish Chari 

Hours of Instructions: 2-Day

Course Prerequisite:  None

Date: April 24-25, 2025 and October 23-24, 2025

Price: $960


This course is an introduction to the hot runners and is designed for mold designers, tooling managers, mold makers, operators, technicians, process engineers, quality auditors, supervisors, mold buyers and maintenance personnel. This course covers fundamental aspects of hot runners tooling, and how to select the right product for specific part/application in cosmetic, houseware, medical, automotive and industrial markets.



•  Introduction to hot runner

   Basic construction & terminology

   Types of hot runner

   Work safety


•  Hot runner components

   Drawings

   Gating & configuration

   Selection for hot runner for an application

   Single cavity and prototyping


•  Mold design

   Integration with mold

   Manufacturers design requirements

   Standard vs Custom components


•  Hot runner design

   Manifold, plates, nozzles and runner system

   Heating and expansion

   Gate inserts and gate detail manufacturing

   Cooling


•  Special hot runner

   Sequential and cascade molding

   Multi-part and multi-material

   Molding decorative files and textile linings

   Stack hot runner

   Cold deck - thermoset

   High, temperature sensitive materials and elastomer


•  Temperature and actuation controllers

   Electrical drawing interpretation

   Temperature controller & working principle

   Gate actuation controllers

   Servo, pneumatic and hydraulic actuations


•  Hot runner suppliers

   Vendors and markets

   Accessories

   Design differences


•  Processing

   Startup and shut down procedures

   Purging compound and purging procedure

   Qualification for acceptance

   Color change

   Troubleshooting part defects

   Troubleshooting hardware

   Maintenance and storage

   Servicing and refurbishment


To register, please download the registration form.


Location

Polymers Center

8900 Research Drive

Charlotte, NC 28262

(704) 602-4100


Dress Code

Business casual

Polo or button down shirt

Long pants

Closed toe shoes, no heels


Lab Etiquette

No drinks, food or gum

No tobacco or vaping devices

Safety glasses must be worn


Krish is an experienced educator with more than 36 years of experience in the plastics and tooling industry. Krish has extensive background and experience in designing jigs & fixtures, injection molds, hot runners, plastics part design, material selection, injection molding processing and troubleshooting. Krish worked at NTTF, India, as a mold maker and at Husky Injection Molding in various capacity as mold designer, flow analyst, product development engineer, and business development manager. 


Recently at Eastman Chemical, he worked as a technical service engineer helping customers with part design to tool try-outs for successful product launches. 


Krish holds degree in Mechanical Engineering, Tool Engineering and Polymer Engineering from major institutions in India and UK. He also holds an MBA degree from UNC Kenan Flagler Business School, Chapel Hill, NC, USA.