Learn about sustainable scrap reprocessing—this resource offers a deep dive into everything from granulator types and options, to service tips, videos and technical articles.

Clean-room and other medical applications are molded at MGS’ All West Plastics facility in Antioch, Ill. The plant has 21 presses in a Class 8 (100,000) clean room and a “white room” (not yet certified clean room).

technotrans says climate protection, energy efficiency and customization will be key discussion topics at PTXPO as it displays its protemp flow 6 ultrasonic eco and the teco cs 90t 9.1 TCUs.

Thousands of people visit our Supplier Guide every day to source equipment and materials. Get in front of them with a free company profile.

“If there is a new equipment or process technology on the market, we try it out and see how it works,” says Bordignon. We look to establish a learning curve of the new technology early on, so that when the prices for that technology come down and market interest grows, we are dialed in and have something ready to offer.”

Leading-edge processing: The iSecure disposable medical syringe is a three-shot part with four components of three materials. It is molded in a complex tool with a four-sided rotary center stack in a sub-10-sec cycle. Photo shows two of MGS’s add-on injectors above and beside the mold. The servo robot demolds parts while the mold is closed through a special cutout in the mold base.

Additive technology creates air pockets in film during orientation, cutting down on the amount of resin needed while boosting opacity, mechanical properties and recyclability.

Second quarter started with price hikes in PE and the four volume engineering resins, but relatively stable pricing was largely expected by the quarter’s end.

One pioneer in this expanding field has made multi-shot molding a cornerstone of its business and is championing its spread to other manufacturers. MGS Mfg. Group in Germantown, Wis., was started by Mark G. Sellers in 1982 as Moldmakers Incorporated. It soon got involved in custom injection molding as well.

While the melting process does not provide perfect mixing, this study shows that mixing is indeed initiated during melting.

This application embodies one of the key enabling technologies of in-mold assembly: Incompatible materials can be overmolded onto each other in the melt form and not stick to each other once cooled and solidified. This principle allows the LDPE tamper-evident band to be removed from the PP plunger and the plunger to slide freely along guide elements of the PETG body.

Hospira is a world leader in the specialty injectable pharmaceuticals market. It had little familiarity with multi-shot processes beyond two-shot molding with TPE seals. But Hospira knew that the previous method of producing the syringe needed to be upgraded. “In the past it didn’t matter how long it took to make the part, but now all aspects of medical molding are changing, and OEMs have to think smarter about their parts,” says Oshgan. Hospira looked at how part design could be changed to accomplish more manufacturing steps inside the mold. The company conducted extensive interviews with four molders and five toolmakers. “We went to these vendors to see what they had done before and what solutions they could propose,” says Oshgan.

This Knowledge Center provides an overview of the considerations needed to understand the purchase, operation, and maintenance of a process cooling system.

The jointly developed tool will be available to the SKZ for research and education in the future. The SKZ would like to thank all partners involved and those who have worked in the background. Interested parties are cordially invited to experience the tool live in action at the SKZ Network and Technology Day on June 26 and 27 in Würzburg in the model factory at the SKZ.

The molding cell employs an innovative parts-removal concept that helps shorten cycle time. A cutout section of the mold base allows a Wittmann top-entry servo robot to take finished parts off of the cores while the mold remains closed during injection and cooling. Very precise robot movements are essential. MGS designed the end-of-arm tooling.

Introduced by Zeiger and Spark Industries at the PTXPO, the nozzle is designed for maximum heat transfer and uniformity with a continuous taper for self cleaning.

While the major correction in PP prices was finally underway, generally stable pricing was anticipated for the other four commodity resins.

Despite price increase nominations going into second quarter, it appeared there was potential for generally flat pricing with the exception of a major downward correction for PP.

Today, multi-shot molding accounts for 25% to 40% of the 300 to 400 molds it builds each year, as well as 20%, of the 2400 active tools used in its custom molding business. Last year, 65% of the firm’s $115 million revenues came from molding, 30% from moldmaking, and 5% from multi-shot equipment. MGS now has more than 600 employees in eight plants in the U.S. and Mexico.

Any molder will tell you there’s a difference in working with electric vs. hydraulic drives. Servohydraulic is still hydraulic; a hybrid machine is something different. Imprecise use of terms causes needless confusion.

Multiple speakers at Molding 2023 will address the ways simulation can impact material substitution decisions, process profitability and simplification of mold design.

Formerly a showroom for early-aughts-era Van Dorn hydraulics, the newest additions to Drummond Industries’ transforming fleet are all-electric Niigata injection molding machines.

Core Technology Molding turned to Mold-Masters E-Multi auxiliary injection unit to help it win a job and dramatically change its process.

As illustrated by the Hospira iSecure device, assemblies with moving parts appear to be an immediate area of opportunity for multi-shot IMA parts. MGS patented a valve with a polypropylene petcock molded into polycarbonate housing using MGS’s own tooling (see photo above). The petcock can rotate 360° inside the housing because the dissimilar materials do not bond to each other after molding. A third shot in this application applies a soft TPE seal that chemically bonds to the PC housing. The valve leaves the mold fully assembled.

Processors with sustainability goals or mandates have a number of ways to reach their goals. Biopolymers are among them.

Though it grabs a lot of headlines, multi-material, multi-shot processing still makes up only about 10% of injection molding activity in North America.

In this collection of content, we provide expert advice on welding from some of the leading authorities in the field, with tips on such matters as controls, as well as insights on how to solve common problems in welding.

Mike Sepe has authored more than 25 ANTEC papers and more than 250 articles illustrating the importance of this interdisciplanary approach. In this collection, we present some of his best work during the years he has been contributing for Plastics Technology Magazine.

The project consortium in front of the LSR injection moulding machine from KraussMaffei with the dosing system from NEXUS in the SKZ model factory. (From left) Jürgen Ritter (Weschu), Sebastian König (Meusburger Georg GmbH & Co KG), Marcel Bestenlehrer (Bestenlehrer GmbH), Jörg Essinger & Torsten Schnell (GÜNTHER Heisskanaltechnik GmbH), Thomas Lender & Markus Scheuerlein (toolcraft AG) and Bernhard Hennrich (SKZ).

One recent project put MGS in the forefront of the new trend to in-mold assembly. The product, a disposable syringe drug delivery system, won two awards at the NPE 2009 show in June in Chicago. SPI’s Alliance of Plastics Processors named it best medical part in its International Plastics Design competition. It also received a joint design award at NPE from the Industrial Designers Society of America and Plastics News magazine. The part was molded by MGS’s All West Plastics division in Antioch, Ill., for Hospira, Inc., a global maker of drug delivery devices based in Lake Forest, Ill.

The Plastics Industry Association (PLASTICS) has released final figures for NPE2024: The Plastics Show (May 6-10; Orlando) that officially make it the largest ever NPE in several key metrics.

Hospira designed the iSecure device to deliver a pre-measured dose of a drug. This is a four-piece, three-material assembly with a sliding part, a tamper-evident seal, and a living hinge. After shipment to Hospira, a prefilled drug cartridge is placed inside the clear PETG copolyester body of the iSecure device. The yellow LDPE component on the lower end of the device swings on a living hinge to lock the drug cartridge in place. The same yellow PP is molded into a separate tamper-evident band around the upper end of the syringe body. When that band is broken (by means of the prominent tab), the purple plunger of talc-filled polypropylene is free to slide along a track on the outside of the syringe body while simultaneously engaging an internal plunger inside the drug cartridge. This disposable product has a useful lifespan of “about 10 seconds,” says Robert Oshgan, Hospira senior tooling engineer. Yet the life of the application could span decades, encompassing hundreds of millions of units.

Join Wittmann for an engaging webinar on the transformative impact of manufacturing execution systems (MES) in the plastic injection molding industry. Discover how MES enhances production efficiency, quality control and real-time monitoring while also reducing downtime. It will explore the integration of MES with existing systems, emphasizing compliance and traceability for automotive and medical sectors. Learn about the latest advancements in IoT and AI technologies and how they drive innovation and continuous improvement in MES. Agenda: Overview of MES benefits What is MES? Definition, role and brief history Historical perspective and evolution Longevity and analytics Connectivity: importance, standards and integration Advantages of MES: efficiency, real-time data, traceability and cost savings Emerging technologies: IoT and AI in MES

“The contacts we make at the specialist conferences allow us to identify trends at an early stage and drive innovation forward,” he continued. The expertise built up over decades in the field of mould making for highly demanding precision small parts is the solid starting point for toolcraft to manufacture the silicone mould within the project. In addition to the ongoing “SiliTemp” research project with the SKZ, toolcraft is now also developing and building the first silicone tools for industry.

Berg adds that despite the added equipment and tooling cost, “Multi-shot molding doesn’t have to have a million-shot volume to be viable. It can simplify your downstream operations. It allows for insert molding with metal, wood, fabric, metal, or even magnets.” To date, the most elaborate multi-shot project at MGS involves a six-shot manufacturing cell for a high-end consumer application.

August 29-30 in Minneapolis all things injection molding and moldmaking will be happening at the Hyatt Regency — check out who’s speaking on what topics today.

Plastics Technology covers technical and business Information for Plastics Processors in Injection Molding, Extrusion, Blow Molding, Plastic Additives, Compounding, Plastic Materials, and Resin Pricing. About Us

MGS has a number of successful multi-shot applications that cannot be molded any other way, according to Berg. “Take a hand-held device with two lenses—there is no way to make it outside of multi-shot, because you would have to handle the lens, place it correctly and repeatedly, and bond it to the substrate. Ultrasonic welding would destroy the lens.”

Join this webinar to explore the transformative benefits of retrofitting your existing injection molding machines (IMMs). Engel will guide you through upgrading your equipment to enhance monitoring, control and adaptability — all while integrating digital technologies. You'll learn about the latest trends in IMM retrofitting (including Euromap interfaces and plasticizing retrofits) and discover how to future-proof your machines for a competitive edge. With insights from industry experts, it'll walk you through the decision-making process, ensuring you make informed choices that drive your business forward. Agenda: Maximize the value of your current IMMs through strategic retrofitting Learn how to integrate digital technologies to enhance monitoring and control Explore the benefits of Euromap interfaces and plasticizing retrofits Understand how retrofitting can help meet new product demands and improve adaptability Discover how Engel can support your retrofitting needs, from free consultations to execution

“It quickly became clear to us that this project was a unique and good opportunity to test our cold runner system in practice,” said Torsten Schnell, head of Research and Development at GÜNTHER Heisskanaltechnik GmbH. “The electric linear actuators allow precise and infinitely variable adjustment of the needles for optimum filling of different component sizes in one mould,” added Jörg Essinger, head of Application Technology.

In this collection, which is part one of a series representing some of John’s finest work, we present you with five articles that we think you will refer to time and again as you look to solve problems, cut cycle times and improve the quality of the parts you mold.

When, how, what and why to automate — leading robotics suppliers and forward-thinking moldmakers will share their insights on automating manufacturing at collocated event.

Innovation partner GÜNTHER Heisskanaltechnik GmbH provided its valve gate nozzle with electric linear actuator for this purpose and, due to the space available on the machine's clamping unit, supplemented it with drives offset by 90 degrees.

“A low-cost, high-quality part with tamper evidence, a living hinge, and multi-shot too, and to be able to get it all from a single source, for us is significant. We expect this part to be the next big thing in medication delivery,” says Oshgan. He adds that this was “the most money we have ever spent on a single four-cavity tool; however, it cost about the same as sourcing four separate tools.”

This month’s resin pricing report includes PT’s quarterly check-in on select engineering resins, including nylon 6 and 66.

The MGS Prototypes, Molds & Design (PMD) business group in Menomonee Falls builds injection, transfer, compression, thermoset, rubber, thermoforming, and cutting/trimming tools. Injection molds encompass single- and multi-shot designs, powdered-metal injection (MIM), liquid silicone rubber (LSR), and in-mold decorating (IMD). PMD produces multi-shot tooling with indexing cores or platens, as well as core-back and shut-off tooling, stack molds with robot transfer, and rotary-stack tools.

The firm got into equipment manufacturing because it found that existing multi-shot machinery was too inflexible. After the initial job was done, “Future applications had to have the exact same screw and barrel location or that rather expensive equipment would become a white elephant,” says Bob Bordignon, director of business development. Soon after, the company developed its own solution, Universal Multishot (UMS) portable injection units that can be mixed and matched and moved to different locations for each job. Today, the company has evolved into a full-service provider of manufacturing solutions—engineering, design, tooling, sampling, development, production molding, value-added secondary operations, turnkey manufacturing systems, and automation systems. It has expanded into three core divisions, including toolmaking, equipment manufacturing, and parts production (see sidebar). MGS serves mainly consumer, medical, and electronics customers, but it also looks to grow in packaging, industrial, computer, automotive, telecommunications, and appliances.

While prices moved up for three of the five commodity resins, there was potential for a flat trajectory for the rest of the third quarter.

Supported by the expert advice of Dr. Ralf-Urs Giesen and his colleagues from the University of Kassel and thanks to the provision of system technology by KraussMaffei and NEXUS, SKZ and toolcraft AG have been able to press ahead with their developments over the past three years in the production cells set up on site. The significant differences in the shot weight of the two articles quickly led to a solution approach with a cold runner mould with valve gate.

This application also uses another critical enabling technology—rotating stack-type tooling. This job was made possible by the SpinStack tooling concept of Gram Technology. It uses a four-sided rotating center stack between the stationary and moving platens. The center stack indexes in 90° intervals. The turning mechanism and servo motors are contained within the mold assembly. The device is molded in three separate positions within the mold, with one position molding two of the four components.

Bestenlehrer GmbH, a tool and mould making company, is a recognized expert in the field of polishing complex cavities. The second-generation family business specialises in the distortion-free and contour-accurate polishing of injection moulding, die casting and forming tools. “Long-standing and highly qualified specialists as well as modern workplaces must be our claim when it comes to the individual requirements of our customers,” explains Marcel Bestenlehrer, managing director of Bestenlehrer GmbH.

In a time where sustainability is no longer just a buzzword, the food and beverage packaging industry is required to be at the forefront of this innovation. By adopting circular packaging processes and solutions, producers can meet regulatory requirements while also satisfying consumer demand and enhancing brand reputation. Join Husky to learn more about the broader implications of the circular economy — as well as how leading brands are leveraging this opportunity to reduce costs, increase design flexibility and boost product differentiation. Agenda: The cost and operational benefits of embracing circularity Key materials in circular packaging — including rPET and emerging bioplastics How to design a circular food and beverage package Strategies for selecting sustainable closures to future-proof packaging solutions Optimization and streamlining of production processes for enhanced efficiency How Husky Technologies can enable your sustainable success

Ultradent's entry of its Umbrella cheek retractor took home the awards for Technical Sophistication and Achievement in Economics and Efficiency at PTXPO.

MGS’s TecStar custom manufacturing division has an 180,000-ft2 main plant in Germantown, Wis.; a 30,000-ft2 facility in Libertyville, Ill.; and a 100,000ft2 plant in Chihuahua, Mexico. The division has more then 140 presses from 28 to 880 tons. All are multi-shot capable via UMS add-on injectors. TecStar also offers value-added secondary operations such as pad printing, ultrasonic welding, heat staking, manual assembly, and packaging. TecStar also has five continuous-extrusion shuttle blow molders and one industrial blow molding press.

Five partners from the world of plastics have embarked on an ambitious project: two moulded parts made of liquid silicone (LSR), which could not have been more different in terms of their application and geometric dimensions, were to be produced in a single mould. On the one hand, a coffee lid with a shot weight of 28 g, a diameter of 100 mm and a maximum wall thickness of 7 mm was to be produced. On the other hand, a magnifying glass with a shot weight of only 6 g and a diameter of 35 mm with a lens with 6x magnification was on the agenda.

Coverage of single-use plastics can be both misleading and demoralizing. Here are 10 tips for changing the perception of the plastics industry at your company and in your community.

Though it grabs a lot of headlines, multi-material, multi-shot processing still makes up only about 10% of injection molding activity in North America. However, the consumer appeal of multi-color and hard/soft material combinations is growing in applications from power tools to toothbrushes. And designers like the cost and quality advantages of eliminating separate molding steps and assembly operations. That creates opportunities for adventurous molders who can manage more complex processes and more sophisticated and expensive machinery and tooling. Those opportunities are multiplied by the nascent trend toward “in-mold assembly”—producing and joining what would normally be separate functional parts in a single machine and mold.

Sustainability continues to dominate new additives technology, but upping performance is also evident. Most of the new additives have been targeted to commodity resins and particularly polyolefins.

Formnext Chicago is an industrial additive manufacturing expo taking place April 8-10, 2025 at McCormick Place in Chicago, Illinois. Formnext Chicago is the second in a series of Formnext events in the U.S. being produced by Mesago Messe Frankfurt, AMT – The Association For Manufacturing Technology, and Gardner Business Media (our publisher).

The aim of this presentation is to guide you through the factors and the numbers that will help you determine if a robot is a smart investment for your application. Agenda:  Why are you considering automation? What problems are you trying to solve? How and why automation can help Crunch the numbers and determine the ROI

“The nice thing about the plastics industry and my job is that after 16 years of professional experience, you can still get to know new materials or classes of materials that are fascinating,” explained Bernhard Hennrich, group manager Injection Molding Research at SKZ.

Take a deep dive into all of the various aspects of part quoting to ensure you’ve got all the bases—as in costs—covered before preparing your customer’s quote for services.

In this collection of articles, two of the industry’s foremost authorities on screw design — Jim Frankand and Mark Spalding — offer their sage advice on screw design...what works, what doesn’t, and what to look for when things start going wrong.

Driven by brand owner demands and new worldwide legislation, the entire supply chain is working toward the shift to circularity, with some evidence the circular economy has already begun.

Join Engel in exploring the future of battery molding technology. Discover advancements in thermoplastic composites for battery housings, innovative automation solutions and the latest in large-tonnage equipment designed for e-mobility — all with a focus on cost-efficient solutions. Agenda: Learn about cutting-edge thermoplastic composites for durable, sustainable and cost-efficient battery housings Explore advanced automation concepts for efficient and scalable production See the latest large-tonnage equipment and technology innovations for e-mobility solutions

For another IMA job, MGS consolidated the design of a buckle for a safety helmet, previously molded in six separate components. MGS redesigned the process to mold them all together on an indexing plate system using two materials.

Resin drying is a crucial, but often-misunderstood area. This collection includes details on why and what you need to dry, how to specify a dryer, and best practices.

Say “manufacturing automation” and thoughts immediately go to the shop floor and specialized production equipment, robotics and material handling systems. But there is another realm of possible automation — the front office.

Exhibitors and presenters at the plastics show emphasized 3D printing as a complement and aid to more traditional production processes.

Across all process types, sustainability was a big theme at NPE2024. But there was plenty to see in automation and artificial intelligence as well.

“Especially when you are entering new subject areas, competent, reliable and cooperative companions are worth their weight in gold. You also need a good dose of pragmatism, which is present in all project partners at all times,” continued Hennrich. The SKZ supported the component design with rheological simulations of the filling behaviour and degree of cross-linking. Growth rates in the silicone market have been in the double-digit range for several years despite the weakening economic situation. The impending PFAS ban will certainly continue to drive LSR sales in the coming months - as the inquiries from the industry already confirm.

Discover how artifical intelligence is revolutionizing plastics processing. Hear from industry experts on the future impact of AI on your operations and envision a fully interconnected plant.

Plastics Technology’s Tech Days is back! Every Tuesday in October, a series of five online presentations will be given by industry supplier around the following topics:  Injection Molding — New Technologies, Efficiencies Film Extrusion — New Technologies, Efficiencies Upstream/Downstream Operations Injection Molding — Sustainability Extrusion — Compounding Coming out of NPE2024, PT identified a variety of topics, technologies and trends that are driving and shaping the evolution of plastic products manufacturing — from recycling/recyclability and energy optimization to AI-based process control and automation implementation. PT Tech Days is designed to provide a robust, curated, accessible platform through which plastics professionals can explore these trends, have direct access to subject-matter experts and develop strategies for applying solutions in their operations.

The part is produced on a 300-ton KraussMaffei press. The clear body is molded first, then the plunger, and finally the living-hinge locking band and tamper-evident seal are molded simultaneously. The second and third shots are delivered by two MGS add-on injection units mounted vertically and on the non-operator side.

Across the show, sustainability ruled in new materials technology, from polyolefins and engineering resins to biobased materials.

With advocacy, communication and sustainability as three main pillars, Seaholm leads a trade association to NPE that ‘is more active today than we have ever been.’

While prices moved up for three of the five commodity resins, there was potential for a flat trajectory for the rest of the third quarter.

Join KraussMaffei for an insightful webinar designed for industry professionals, engineers and anyone interested in the manufacturing processes of PVC pipes. This session will provide a comprehensive understanding of the technology behind the production of high-quality PVC pipes: from raw material preparation to final product testing. Agenda: Introduction to PVC extrusion: overview of the basic principles of PVC pipe extrusion — including the process of melting and shaping PVC resin into pipe forms Equipment and machinery: detailed explanation of the key equipment involved — such as extruders, dies and cooling systems — and their roles in the extrusion process Process parameters: insight into the critical process parameters like temperature, pressure and cooling rates that influence the quality and consistency of the final PVC pipes Energy efficiency: examination of ways to save material and energy use when extruding PVC pipe products

Mixed in among thought leaders from leading suppliers to injection molders and mold makers at the 2023 Molding and MoldMaking conferences will be molders and toolmakers themselves.

Arburg will show its all-electric Allrounder 720 A press utilizing injection compression molding to create thin-wall IML cups from PP.

The Hehl family company, which grew into Arburg, marks its centennial this year with a new generation of energy and resource efficient hybrid injection molding machines.

The tool was built under license from Gram by KTW Group in Austria. The rotating center stack has four cavities on each of its four faces. Cycle time is under 10 sec.

Gifted with extraordinary technical know how and an authoritative yet plain English writing style, in this collection of articles Fattori offers his insights on a variety of molding-related topics that are bound to make your days on the production floor go a little bit better.

In this three-part collection, veteran molder and moldmaker Jim Fattori brings to bear his 40+ years of on-the-job experience and provides molders his “from the trenches” perspective on on the why, where and how of venting injection molds. Take the trial-and-error out of the molding venting process.

MGS has been involved in multi-shot molding and moldmaking since the 1980s and it is now a mainstay of the company’s business. The latest enhancement is in-mold assembly, such as the MGS-patented valves with a PP petcock molded into a PC housing with at TPE seal.

After successfully introducing a combined conference for moldmakers and injection molders in 2022, Plastics Technology and MoldMaking Technology are once again joining forces for a tooling/molding two-for-one.

Still, taking such a radically new approach was a “huge leap of faith” for Hospira. “Good communication is mandatory on a program that pushes molding technologies to the limit like this one,” says Berg. “The emphasis was on getting all vendors involved early in the development process.” MGS developed a single-cavity prototype tool that showed what the IMA process could do.

The previous generation of the iSecure device was molded as two separate parts, requiring two molds and semi-automated downstream assembly equipment. Producing all the plastic parts in a single mold with no secondary assembly vastly reduced the overall manufacturing cost. Multi-shot in-mold assembly (IMA) saved $1.5 million to $2 million in custom-built downstream equipment costs alone. Hospira also saved six to eight months lead time by not having to calibrate a complicated assembly system. IMA also improves quality control. With IMA, what would have been critical dimensions for post-mold assembly are no longer required to ensure proper fit, says Oshgan.

Hospira was sold on the combination of MGS’ core competencies: “They could assist in selecting the multi-component tooling process and could play a part in mold building and hot-runner design. MGS also contributed in-house custom automation solutions, and they molded the part,” says Oshgan.

Successfully starting or restarting an injection molding machine is less about ticking boxes on a rote checklist and more about individually assessing each processing scenario and its unique variables.

The MGS equipment division offers its UMS series of portable add-on injection units in mold-mounted, horizontal, and vertical press-mounted designs, including versions for LSR. MGS also makes servo-driven and hydraulic rotary platens, hot-runner controllers, and a mold-vacuum unit that pulls air from the mold prior to injection to ensure complete filling. This business unit also produces complete turnkey manufacturing cells, as well as custom equipment such as extruders and automation systems for in-mold labeling and decorating, parts removal, and press-side parts handling.

“Only through close cooperation like this is it possible to expand the company's own portfolio and build up the necessary network alongside day-to-day business. The SKZ provides us with a wide range of opportunities to exchange ideas with other industry representatives,” added Markus Scheuerlein, project manager Mold Making at toolcraft AG.

Meusburger Georg GmbH & Co KG contributed to the consortium with its expertise in selecting the right material for the tool steels used. “The silicone market is a stable and growing market. For us at Meusburger it was important to expand our expertise here even more in order to be able to advise customers in the best possible way,” emphasised Sebastian König, regional sales manager at Meusburger. For the planned injection mould, corrosion-resistant steels were proposed and ultimately used for the basic structure and the mould inserts.

Another example is a small filter gasket for a blood analyzer that has three o-rings. “No way can it be made conventionally,” says Berg. “How to get the o-rings in place, and have no flash or part dimension issues narrows the technology choice.”

Mold maintenance is critical, and with this collection of content we’ve bundled some of the very best advice we’ve published on repairing, maintaining, evaluating and even hanging molds on injection molding machines.

MGS began building multi-shot tooling systems in the 1980s. “By the mid- to late ’90s, multi-shot had become such a driving force for our company that we found that sampling the molds was impacting our lead times,” says marketing director John Berg. “There simply was not enough open capacity in the market. Multi-material molding was definitely a specialty and very few molders had the equipment. A two-shot press was expensive and the lead times were long.” MGS recognized that multi-shot molding was an opportunity to differentiate itself and its customers, so it created its own processing equipment. By the early 1990s, MGS started developing its own rotary mold tables and add-on injection units to assist its own operations. These are now available for sale to other molders.