--- title: Get Your Hot Runner Cavities Back! description: Purging Expert Hank Moeller discusses how purging concentrates can help caps & closures manufacturers get the most of their multi-cavity hot runner systems image: https://www.asaclean.com/hubfs/Cavities%20Blog%20Header.jpg --- [ Order Online ](https://asaclean.my.site.com/b2bstore) [ Free Sample ](https://offers.asaclean.com/free-sample) ## [ Asaclean Blog ](https://www.asaclean.com/blog) Browse by Topic " aerospace asaclean asaclean news Asaclean® benefits asahi kasei automotive Best Practices black specks blisters blow molding blown-film extrusion buyers caps and closures carbon contamination cast-film extrusion Chemical Purging Compounds clear applications Color Changeovers Company News compounding consumer products contamination Cost savings custom molders Customer Success Story decreasing scrap defects electronics Energy Efficiency EX Grade extruder cleaning Extrusion fillament glass filled Glitter Grade Selection HDPE High and Low Temp Changeovers hold a bubble Hot Runners Injection Molding Injection Molding Tips LDPE Lightweight automotive components LLDPE low residue maintenance Material Changeovers Mechanical Purging Compounds medical Melt Flow Index NPE 24 nylons on the fly packaging PCR PEEK Polypropylene Post Consumer Resins preventative preventative purging processing tips profile extrusion Purge Program purge programs Purge Training Purge Trial purging purging compounds purging concentrates purging procedures Purging Tips quality recycled resins residue issues scrap reduction Screw Pulls sheet extrusion shutdown and sealing start-up super engineering resins Sustainability Tech Day technical support training trials Troubleshooting Twin Screw twin screw extrusion two step purging U Grade ULTEM venting Viscosity webinars wire extrusion - 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[Twin Screw](https://www.asaclean.com/blog/topic/twin-screw) - [twin screw extrusion](https://www.asaclean.com/blog/topic/twin-screw-extrusion) - [two step purging](https://www.asaclean.com/blog/topic/two-step-purging) - [U Grade](https://www.asaclean.com/blog/topic/u-grade) - [ULTEM](https://www.asaclean.com/blog/topic/ultem) - [venting](https://www.asaclean.com/blog/topic/venting) - [Viscosity](https://www.asaclean.com/blog/topic/viscosity) - [webinars](https://www.asaclean.com/blog/topic/webinars) - [wire extrusion](https://www.asaclean.com/blog/topic/wire-extrusion) [ Subscribe ](https://www.asaclean.com/blog/get-your-cavities-back#subscribe-modal) ### Suscribirse Injection Molding / 3 min read / August 16, 2022 # Get Your Hot Runner Cavities Back! - [Facebook Share ](https://www.facebook.com/sharer/sharer.php?u=https%3A%2F%2Fwww.asaclean.com%2Fblog%2Fget-your-cavities-back) - [Twitter Tweet ](https://twitter.com/intent/tweet?url=https%3A%2F%2Fwww.asaclean.com%2Fblog%2Fget-your-cavities-back&text=Get+Your+Hot+Runner+Cavities+Back%21) - [LinkedIn Share ](https://www.linkedin.com/shareArticle?mini=true&url=https%3A%2F%2Fwww.asaclean.com%2Fblog%2Fget-your-cavities-back&title=Get%20Your%20Hot%20Runner%20Cavities%20Back%21&summary=Purging+Expert+Hank+Moeller+discusses+how+purging+concentrates+can+help+caps+%26amp%3B+closures+manufacturers+get+the+most+of+their+multi-cavity+hot+runner+systems&source=) - [Pinterest Pin ](https://pinterest.com/pin/create/button/?url=https%3A%2F%2Fwww.asaclean.com%2Fblog%2Fget-your-cavities-back) - [Email Email ](mailto:?subject=Get%20Your%20Hot%20Runner%20Cavities%20Back%21&body=https%3A%2F%2Fwww.asaclean.com%2Fblog%2Fget-your-cavities-back) ![Get Your Hot Runner Cavities Back!](https://www.asaclean.com/hs-fs/hubfs/Cavities%20Blog%20Header.jpg?width=640&height=500&name=Cavities%20Blog%20Header.jpg) In the Caps and Closures industry, high cavity hot runner tools are a great way to maximize production and reduce waste. We see a lot of 28, 32, & 64 + cavity tools. These are highly engineered and impressive works of art. These are fast cycling, high-volume producing machines. However, despite the amount of ingenuity and design we rarely see these tools running at 100% capacity. The truth is that in many cases these high cavity tools are down 10-50% in cavities (sometimes more) robbing you of your much-needed production which inevitably increases your operating expenses. I recently had a company in the Caps & Closures industry reach out to me for help regaining some much-needed cavities. They were currently running at only 60% capacity on their tool and were hesitant to stop to fix the problem due to the high product demand. After a quick conversation explaining that we could clean their tool using the same production material in a short period of time without having to pull the tool for repair. I showed up with our new [PLUS Grade](https://www.asaclean.com/purging-products/plus-grade) concentrated purging compound. Due to the severe contamination inside the manifold and nozzle tips, we mixed the PLUS grade at a 25% mixture with their 12mt PP. We started by floating the A-side cavity plate over to the B-half and removed nozzle tips and increased the temperature on all zones on the manifold heaters by 50 degrees. While the manifold was heating up, we quickly retracted the sled and thoroughly purged out the barrel. Once the barrel was clean and the manifold was up to temp, we began to purge through the manifold with tips still removed. We immediately began to see contamination pouring out of the nozzles. After a few much-needed heat soak periods with the PLUS grade inside the manifold the purging compound began to come out clean. Next, we re-installed the nozzle tips, let them come up to temperature, and then began to purge through the manifold once again. This time to clean and clear the tips. With this strategy, we were able to separate and purge clean individual key components without causing further issues by introducing contamination down the line. (This is not always needed) Without having to pull the tool for repair and a much shorter period of machine downtime than expected the customer was extremely happy that they were able to resume production the same day with now running 88% in tool capacity. We ended up finding some damaged tips but with a 28% increase in productivity, the customer had a big smile. For the Caps and Closures industry, continuing to run production with a tool that has been severely impacted with clogged or blocked cavities through the night until you get proper support can be an easy short-term decision but in the long term carries a severe impact on your margin by increasing your production cost and lead times. Our new PLUS grade concentrated purging compound has shown in many cases to be a powerful solution that now gives you the option to briefly stop production and use your current production material to create a purging compound and quickly get your much-needed cavities back. **Ready to reduce your ****production downtime**** to protect your profits? Learn more about how ****purging compounds**** and process efficiency work in tandem.** ![Tom Hanvey](https://www.asaclean.com/hs-fs/hubfs/Tom%20Headshot.jpg?width=150&name=Tom%20Headshot.jpg) #### [ Tom Hanvey ](https://www.asaclean.com/blog/author/tom-hanvey) Tom Hanvey is the Associate Director of Marketing & Sustainability at Asahi Kasei Plastics North America. Before joining APNA, he worked as the Senior Marketing Manager for Asaclean Purging Compounds. He's worked in the plastics industry for over 10 years and focuses on recyclable resins and on the inbound marketing side, providing easy-to-digest content to processors looking for an edge on their competition. - [Share On LinkedIn ](https://www.linkedin.com/in/thomashanvey/) ## Related Posts [![](https://www.asaclean.com/hs-fs/hubfs/iStock-614446642.jpg?width=450&height=250&name=iStock-614446642.jpg) Purging Options for Blow Molding Machines Have Come a Long Way Purging Tips / 3 min read / August 17, 2021 ](https://www.asaclean.com/blog/purging-options-for-blow-molding-machines-have-come-a-long-way) [![](https://www.asaclean.com/hs-fs/hubfs/iStock-530937906.jpg?width=450&height=250&name=iStock-530937906.jpg) Reducing Scrap Step-by-Step Troubleshooting / 5 min read / September 22, 2021 ](https://www.asaclean.com/blog/reducing-scrap-step-by-step) ## Comments Get Started ## Ready to start improving your efficiency and increasing your profitability? - [Request a Consultation](https://www.asaclean.com/blog/get-your-cavities-back#) - [Contact Sales](https://www.asaclean.com/blog/get-your-cavities-back#) ![](https://www.asaclean.com/hubfs/assets/images/icons/icon-layers.svg) #### Free Sample Request a free sample of Asaclean® Purging Compounds for your plant and start saving today. 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[See your savings](https://www.asaclean.com/cost-savings-calculator) [ Back to Top ](https://www.asaclean.com/blog/get-your-cavities-back#top) ```json { "@context" : "https://schema.org", "@type" : "BlogPosting", "author" : { "@type" : "Person", "name" : "Tom Hanvey", "url" : "https://www.asaclean.com/blog/author/tom-hanvey" }, "dateModified" : "2022-08-16T11:02:00.743Z", "datePublished" : "2022-08-16T11:02:00.000Z", "headline" : "Get Your Hot Runner Cavities Back!", "image" : [ "https://www.asaclean.com/hubfs/Cavities%20Blog%20Header.jpg" ], "mainEntityOfPage" : { "@id" : "https://www.asaclean.com/blog/get-your-cavities-back", "@type" : "WebPage" }, "publisher" : { "@type" : "Organization", "logo" : { "@type" : "ImageObject", "url" : "https://www.asaclean.com/hubfs/Asaclean%20Logo%20TM.jpg" }, "name" : "Asahi Kasei Plastics North America" } } ``` ```json { "@context" : "http://schema.org", "@type" : "Article", "articleBody" : "In the Caps and Closures industry, high cavity hot runner tools are a great way to maximize production and reduce waste. We see a lot of 28, 32, & 64 + cavity tools. These are highly engineered and impressive works of art. These are fast cycling, high-volume producing machines. However, despite the amount of ingenuity and design we rarely see these tools running at 100% capacity. The truth is that in many cases these high cavity tools are down 10-50% in cavities (sometimes more) robbing you of your much-needed production which inevitably increases your operating expenses.", "author" : { "@type" : "Person", "name" : "Tom Hanvey" }, "datePublished" : "August 16, 2022", "headline" : "Get Your Hot Runner Cavities Back!", "image" : "https://468726.fs1.hubspotusercontent-na1.net/hubfs/468726/Cavities%20Blog%20Header.jpg", "name" : "Get Your Hot Runner Cavities Back!", "url" : "https://www.asaclean.com/blog/get-your-cavities-back" } ```