Hot Runners for Plastics Production
A hot runner system is an assembly of heated components—hot halves, nozzles and gates and—that inject plastic into the cavities of an injection mold. The system usually includes a heated manifold and a number of heated nozzles.
ESSENTIAL READING
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Understanding Hot Runner Temperature Controllers
Learn what’s new and what’s possible in the various hot runner temperature controller formats, including modular, GUI-style and advanced GUI-style systems.
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Optimizing Pack & Hold Times for Hot-Runner & Valve-Gated Molds
Using scientific procedures will help you put an end to all that time-consuming trial and error. Part 1 of 2.
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How to Start a Hot-Runner Mold That Has No Tip Insulators
Here's a method to assist with efficient dark-to-light color changes on hot-runner systems that are hot-tipped.
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Hot Runners: How to Maintain Heaters, Thermocouples, and Controls
I conclude this three-part examination of real-world problems and solutions involving hot runners by focusing on heaters, thermocouples, and controls. Part 3 of 3.
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Hot Runners: Truths. Myths, Overlooked Areas: Part 2
Here’s a view from the trenches of a tooling manager who, over 30 years, has experienced the joys and pains of using virtually every type of hot runner on the market. Part 2.
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How to Optimize Pack & Hold Times for Hot-Runner & Valve-Gated Molds
Applying a scientific method to what is typically a trial-and-error process. Part 2 of 2.
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Latest Hot Runners News And Updates
Haidlmair Highlights Moldmaking Productivity K 2025
Haidlmair will demonstrate patented mold technology designed to enhance productivity with faster setup, optimal cooling and greater energy efficiency.
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Oerlikon HRSflow Debuts Hot Runners for Aesthetic Parts in Amorphous Resins
The company will introduce its STARgate HRS valve-gate concept, Glow HRS line for direct injection of aesthetic parts in amorphous materials and Up Nozzle series with smaller pitches.
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Advanced Valve Gate Solution for Multicavity Line Saves Time, Optimizes Performance
Oerlikon HRSflow highlights an advancement for its Multiflow HRS multicavity line, the EYEgate HRS, a valve gate hot runner system solution.
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Integrated RFID Technology Offers Smart Connectivity for Hot Runner Systems
Intelligent tool networking with integrated radio frequency identification (RFID) technology maximizes toolmaking efficiencies with seamless mold identification, instant access to critical data and streamlined spare part ordering.
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End Ring Valve Gate Optimizes Multicavity Application Injection Molding
The EYEgate HRS features a specially designed pin guide system engineered to ensure permanent pin-gate alignment to significantly enhance the end ring’s durability.
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Hot Runner Design Prevents Overheating, Excessive Heat Loss
Germany’s Heitec says the new Primo line of nozzles are available in North America from Technoject Machinery.
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Featured Posts
Optimizing Pack & Hold Times for Hot-Runner & Valve-Gated Molds
Using scientific procedures will help you put an end to all that time-consuming trial and error. Part 1 of 2.
Read More
Hasco Marks a Century in Mold Components, Mold Bases and Hot Runners with Cake and New Technologies
NPE2024: Cake, drinks and the unveiling of a new North American website providing online ordering in the U.S. and Canada for the first time are just some of the things happening at Hasco’s booth as it brings its year-long centennial celebration to Orlando.
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How to Start a Hot-Runner Mold That Has No Tip Insulators
Here's a method to assist with efficient dark-to-light color changes on hot-runner systems that are hot-tipped.
Read More
Hot Runners: How to Maintain Heaters, Thermocouples, and Controls
I conclude this three-part examination of real-world problems and solutions involving hot runners by focusing on heaters, thermocouples, and controls. Part 3 of 3.
Read More
Hot Runners: Truths. Myths, Overlooked Areas: Part 2
Here’s a view from the trenches of a tooling manager who, over 30 years, has experienced the joys and pains of using virtually every type of hot runner on the market. Part 2.
Read More
How to Optimize Pack & Hold Times for Hot-Runner & Valve-Gated Molds
Applying a scientific method to what is typically a trial-and-error process. Part 2 of 2.
Read More
FAQ: Hot Runners
First, think of it as an extension of the molding machine itself. Its purpose is to keep the plastic molten at a proper temperature on its path to the cavity. So basically it’s just a piece of heated steel with a round channel in it for the melt to flow through. Ideally, this channel would be running at the exact temperature on the controller, free of obstacles such as dead spots or components that could create hangups and cause scrap issues with color changes or contamination.
Hot Runners Supplier Categories
