There’s also a block-like locking mechanism. . VectorForm System components are engineered for the common injection molding environment. to 5 p. 25K views 1 year ago. Unlike a slider, which pushes the injection molded part to one side, a lifter pushes the part upward and at an angle. As it is a feature of the mold, the draft angle is also visible on the component. Chat with one of our industry experts. Sometimes there are some features on B Side of surface and they create interference in mold separation (features like snaps, dog house etc), they are in internal undercut region. Lifters enable the creation of undercuts, moving vertically across the mould, while sliders provide slides or grooves onto surfaces – they move horizontally through injection molds. Universal Lift Rings : 28: Utility Knives : 315: V Type Heater Band : 166: V-Belts : 798:1. Engineering. Injection molding represents the most important process for manufacturing plastic parts. It doesn’t matter whether the eyebolt is in the ejection half or the injection half. PCS Company mold components are designed and. we call them undercuts. Double Valve - VD. com) that went into more detail on lifters and was a continuation of his previous post. There should be a distance of 1 – 3mm from the angle lifer to the product, with a clearance of 0. A lifter is a small, movable component used to lift the molded part off the core side of the mold during ejection. It is able to replace the fixing screws when the strength requirement is not high. Mold Cores, Core Pins and Chill Plates 3. Roller/Ball Bars or Die Lifters are used to lift the rubber mold and provide a roller surface to easily roll the mold in and out during the rubber mold change. Thus at 1,000 psi cylinder pressure, a cylinder larger than an 8" diameter bore would be needed. At its most basic level, the slider is used to turn the vertical. For Our Paid Online and offline A. Injection moulding can be performed with a host of materials mainly including metals (for which the process is called die-casting ), glasses, elastomers, confections, and most commonly thermoplastic and. . Our exclusive SmartTech™ training combines face-to-face instruction, a powerful online training portal, and hands-on skill development. Injection Mold Lifter (161 products available) Plastic Injection Mold Lifter, Double Teeth Lifters $50. Use the groove or insert installation part of the cavity; 2. The core blades are made of H-13 for easy. is an ISO 9001 and ISO 13485 certified and UL registered plastic injection molding company. This video contains several injection mold delicate delay mechanisms for ejection and core pulling. (2). Injection mold angle Lifter is the mechanism in the injection mold to release the plastic molded parts undercut and ejector the part out off mold. on the side wall of a plastic product which make it impossible to release the mold, the molded product must be moved laterally. In this series of lectures, you will learn the easiest explanation of injection mold design calculations, this lecture will help you to understand how to des. 12” - . e. Injection molding undercuts are features of a plastic part that are not perpendicular to the mold parting line. . Propane powered with internal combustion engine and on-board PLC and equipment for remote starting of engine and transport. Most injection mold company usually apply the lifter structure as shown . To get the cost of plastic injection molding products it is much easy than getting a cost for export plastic mold,. 14) The length of the slide foot must be 50% of the overall height of the slide. The mold is composed of two halves, the “A” side and “B” side. Lernen Sie die Übersetzung für 'injection molding' in LEOs Englisch ⇔ Deutsch Wörterbuch. Plastic material (melt) is then injected from a nozzle of an injection molding machine to the inside of the mold. Design skills for connecting lifter:. 18%. Industrial Molding Supplies since 1949 • 800-537-5375. But by following a few simple rules, even the most difficult of these challenges can be overcome (parenting aside). Check for damage to the clamp bolt threads in the platens. We'll learn how to calculate angle and stroke in lifter. Maintenance for sleeves involves checking the fit of the outside of the core pin to the inside of the sleeve. This idea is nothing new for the injection molding industry but at Fortify we take it to a whole new level with our 3d printed mold tools. Copyright reserved by: lifter in plastic injection mold is mainly used to form the internal undercuts of a molded plastic part. The steps in this process are described in greater detail in the next section. 010 inches. Four clamping lines are formed at the interface between the sliders on the. Lifter Systems Application. After the part has cooled, the lifter pushes up at an angle, which removes the undercut section from the mold, and retracts from the undercut during ejection. Non-Isothermal Flow v Flow rate: 1/t ~V/L x Heat transfer rate: 1/t ~a/(L z /2)2 For injection molding For Die casting of aluminum * Very small, therefore it requires thick runners Small value => Short shot Péclet No. In injection molding, lifters are an integral part of the mold to ensure proper removal of your finished part, retracting any sort of undercut section from t. In many cases, the function of the undercut can be achieved by clever design without requiring a side core. Considerations in Lifter Design The following are some considerations when designing lifters for injection molding systems. ManufacturerThe socket of the Cavity-Lifter Injection Mold must ideally accommodate/shrink the amount of material that will occur when casting the part. For injection molding, there are some common troublemakers during part design: Clips and snap fitsShot size plays a pivotal role in the Injection Molding Shot Size Calculation process, directly impacting the final product’s quality, dimensional accuracy, and structural integrity. It can cause the through holes in the core insert to wear out with elliptical or egg-shaped holes. A lifter is used for picking up the unwanted dust and damaged parts of the mould. The blue component is the finished plastic part (cut-aw. An undercut in the injection molding tool is when the opening and closing of the tool doesn’t allow a feature to be formed. . It allows for the creation of complex and intricate designs with ease and efficiency. [1] The cooling phase of the injection moulding process accounts for up to 75% of. What is injection molding? Injection molding is the technique where molten plastic is injected into a metal mold. 518 of lifter travel. Chat with one of our industry experts. Ketiga komponen ini merupakan satu kesatuan yang saling berhubungan secara otomatis. For example: arrange A company to design, B factory making mold base, C factory making core block, D factory making slider/lifter/insert etc (request every supplier control the tolerance within your requirement, so that is easy to assembly). 003 in. Design bosses with an outer diameter equal 2x the nominal diameter of the screw or insert. This philosophy has driven us to offer a collection of Mold Lifting and Rigging hardware that has been certified and proof tested. This radius should not be smaller than 0. The algorithm surpasses the current state of the art since it uses as input variables firstly the discrete map of temperatures of the melt plastic flow at the end. An undercut is any indentation or protrusion that prohibits part ejection from a mold. Publication Publication Date Title. Our engineering group considers all aspects of the mold build including part design and volume required, the molding environment and mounting systems, specific mold action activity including cams, lifters and custom. When the mold is full, the machine. Mold Lifters A lifter is a component in the mold that is normally attached to and actuated by the ejector system and moves at an angle to free internal molding detail (see Illustrations B and C). Core Geometry. Type of Side Action. Rapid Prototyping Mold Design Injection Mold Making Injection Molding Service Vacuum Forming Molding Secondary Process Quality Assurance Insert Molding Services. An Injection Molding Sprue refers to the channel through which molten material is introduced into a mold. Proper mold venting is essential for producing quality parts. 0, 1,000 psi line and below the. injection moulding machine and components 2. . An injection molding lifter is an important component that is part of the injection molding mechanism that travels with the ejection stroke, moving on an angle to slide and pull the cavity steel away from the undercuts in the die. They have a max temperature of 250°C (482°F) and Max. Injection Molding Lifter; Injection Molding Cavity VS Core; Contact Info. One of our expert trainers will lead the course and encourage live participant interaction without the need to travel. Materials Used in Injection Molding Toys. In This Tutorials We'll Discuss lifter calculations of Plastic Injection Mold Design. (i. Most injection mold company usually apply the lifter structure as shown . Mobile: +86 135 30801277. Injection molding lifters consist of a blade-like or pin-like lifting mechanism, an ejector plate, and a retainer plate. Routsis’s SmartTech™ is the most effective way to train plastics processors and. Propane powered transfer cars are used for handling coils, dies and molds. Features. Here we'll calculate Lifter angle & Strokes. Spray a light mist of “overnight” preservative or WD-40 on the platens and the clamp-plate faces of the mold. Engaged in mold production, manufacturing, and processing for five years, exported to. Undercuts in Injection Molding: A Brief Overview. Mold Lifters optimize the injection molding process by enabling the production of parts with diverse and innovative designs. Ayanna Plastics & Engineering, Inc. D. The surface of the mold cavity and sprue bush is rough. CUMSA is a family company dedicated to the design, manufacturing and distribution of innovative standard mold components and solutions for the moldmaking and molding industries. Injection molding represents the most important process for manufacturing plastic parts. Use Case. . This video will explain how to injection mold lifter work? Lifter used to solve undercut, when ejector plate moving, lifter will move as lifter angle. e. Injection molding lifters are mechanical components that are used to lift or move specific features of a molded part during the ejection process. We have established our brand as one of the leading manufacturers. Injection mold Slider operationAvoid adding threads directly on your injection molded part. Gate blush is a molding defects commonly caused at the gate location of molded part, It shows as rings or ripples in the mold cavity surrounding the gate area. Injection Molding Minimum Wall is a widely employed manufacturing process that involves the production of intricate and precise plastic components by injecting molten material into a mold cavity. The slider usually has a hydraulic system that pushes it in a lateral direction. Much like a tunnel gate, the cashew gate is machined below the parting line and is automatically sheared during ejection. The mold is one of the most important parts of injection molding. com. GB2085777B 1985-09-04 Making a sprue bushing for injection molding. Due to the constraints of the mold tooling and molding press, these side cores and lifters have a limited depth or pull. But since plastic melt is compressible, in practice no one really knows if the mold is 100% filled with melt or is filled more than 100%. Friction and the heated barrel melt the plastic. If you turn on the spigot to a garden hose, you will hear a hissing sound at the nozzle end for the first few seconds. PENDAHULUAN Perkembangan industri saat ini kemasan merupakan suatu kebutuhan bagi industri makanan. This steel also is much more stable through the heat-treating process, shrinking or expanding less than H-13 or stainless steel. They are an essential part of the injection molding process, allowing manufacturers to create complex parts with undercuts, threads, and other intricate features. Once the mold is opened and the part is ejected, you will have a hook that snaps to your mating part. There needs to be a balance between fit of the halves, function of the part, visual quality expectations, and the cost to produce the mold. 0, 1,000 psi line and below the 10. Injection moulding process explained with key elements. The lifter and slide can form difficult shapes and still allow the part to be. The causes of parts sticking and sprue sticking are multifaceted, among which mold failure is one of the main reasons. Including kinds off Mold and Die Components, such as Injection Mold lifter. This comprehensive guide will explore the differences between conventional and precision injection molding, the challenges faced in this process, troubleshooting common problems, the importance of areas of precision,. This book helps guide the designer, engineer, project manager, and production manager in making sure that the injection mold to be designed will work as intended. Learn more. Today Randy takes a look at calculating angles for lifters and how angles can impact mold maintenance. 65#, Dayang Industrial Zone, Songgang Street,. 5. Detachable separation design, easy and fast installation, is the best choice for mold inserts and machine precision parts. Our goal at KTM is to offer our clients superior service and high-quality parts with on time delivery. 18. Depending on the type of molding material, you might use a gate depth that is 50-80% of the part’s wall thickness, and depending on the flow length, the width of the gate being two to six times its depth. 2. From small electronic device components to larger household items, lifters facilitate the manufacturing of complex shapes and intricate designs. The major contribution for the lifters scoring was the load of the molded part itself. The mark left on the part at the end of ejection mirrors the shape of the sleeve. Check for “dings” or raised areas on the mold and platen—especially the locating-ring alignment hole. Large Lifter and Internal Retraction Structure Design Does anyone have any idea of the benefits of this design and what construction it would typically be used…In the design of injection molds, slider and lifter are two commonly used mechanisms, which play an important role in the opening and closing process of the mold. Lifter Injection Molding. Keywords: Injection molding, slider, undercut, cooling. Discover lifter injection moldingat BAITO Mold factory . Our two-platen injection molding machines are characterized by an extensive clamping force on the smallest footprint. Resultingly, it becomes necessary to include undercuts when your injection molding design has these features. The mechanism for this mold slider is set up so that the lateral sliding. Non-Isothermal Flow vThis course is the distillation of years of work, study and reading. Since many injection molded products have special requirements, a mold side-action or slide is often used to form complex geometries and release the finished product upon mold opening. Clean operation; Minimum effort; Faster operation; With or without power. Surface Finish Injection Molding: From Glossy to Textured Finishes. The entire mechanism that drives the lateral movement of the molded product is referred to as. Injection Mold Cost Overview. When molding a fiber-filled resin, a “Reverse Heat Profile” is. The lifter employs the 8407 steel with a hardness of up to HRC50-52. 2. Almost every plastic part created today is by injection moulding as. For some complex molds, the cavities or cores are often inserted, i. Once the mold is opened and the part is. the part this time is create Lifter design in injection molding. The quality of the ejection determines the quality of the plastic product. 1 to 10 17. It’s a very durable, impact-resistant tool steel that can be hardened up to 56 RC. ・This product can be configured to suction when the valve at hand is opened, and to switch to the blower when the trigger is gripped. The parting line is the intersection plane between both molds. Draft angles are a required feature of injection-molded custom parts. The slider usually has a hydraulic system that pushes it in a lateral direction. For example: arrange A company to design, B factory making mold base, C factory making core block, D factory making slider/lifter/insert etc (request every supplier control the tolerance within your requirement, so that is easy to assembly). ,High Precision Plastic Mold Parts Synchronized Opener Lifter And Closer Injection Mould Making,injection molding lifter,injection molding lifter | baitomouldparts. The plastic injection molding process can cost anywhere from $3,000 to $100,000 or more. For example, with an injection line pressure of 1,500 psi, converted to injection pressure of 15,000 psi, and a core area of four square inches, the point lies above the 8. The U-coupling travels freely in the T-Gib when the mold opens. Michiana Global Mold has years of experience determining the correct type of mold to build for your parts requirements. These are free resources that are great for beginners. After the part has cooled, the lifter pushes up at an angle, which removes the undercut section from the mold, and retracts from the undercut. Many people confuse the cavity with the core. Molds that are really huge or intricate may cost up to $80,000 or more. Injection moulding is a formative manufacturing technology, i. 02” deep (refer to drawing S5-1) and are always routed to atmosphere. At Creatingway, we widely use it in the manufacture of parts for commercial purposes. Green Valley custom engineers quick change die transfer carts and mold transfer carts to help meet your needs for lift heights and capacities, as well as supply efficient transport of your tool to storage or maintenance. A dynamic (versus static) mold-venting valve helps resolve the most common effects of poor cavity venting. For injection molding companies looking to take training to the next level, we offer on-site Scientific Molding training. At that point, you should look into improving the mold itself for the best results. Undercuts that are on the inside of a part are handled by a similar sliding mechanism called a lifter. )For injection molding companies looking to take training to the next level, we offer on-site Scientific Molding training. 37/hour) The employment of injection mold operators is expected to grow at an average rate over the next decade. 1) All mechanical slide design standards relative to shut-off, molding surfaces, and cooling will apply to the Hydraulic Slide designs. In This Tutorials We'll Discuss lifter calculations of Plastic Injection Mold Design. plus the shrink tolerance of the resin. The duo series is one of the most energy-efficient machines of this type - with up to 55% less. 080" – 0. Plastic injection molding is the process of injecting molten plastic material into a metal tool which then cools and ejects a plastic part from the machine. The molten material. For a free preliminary review of your design for manufacturing readiness, call to speak to your plastic engineer at (631) 580-3506. SOLIDWORKS mold design tutorial on making Injection Molding plastic. Top 10% Annual Salary: $111,000 ($53. Starting with a short and easy introduction to injection moulding; a mould used for injecting plastic comprises of atleast two parts – the core and the cavity. g. m. 5 gallons to 15,500 gallon capacities, the Ace Roto-Mold division can provide for your Liquid Storage & Containment requirements. Once the part has cooled, the lifter pushes up at an angle to release the undercut. POM is a thermoplastic polymer that is commonly used in precision parts such as gears, bearings, and electrical components due to its high strength, stiffness, low friction properties,. Finishing touches and quality checks. Generally, it is combined with the lateral core to form the side slider core, which is called the combined side slider. Partially made into a spiral shape; 4. Complete animation of 2 plate injection Mold design. 5. Ejector bars offer a good option for ejection on lengths of flat surface. POROUS MOLD MATERIALS. The design engineer must understand the part geometry, including any undercuts or other features that may require a lifter. Injection molding lifters and sliders play a crucial role in achieving intricate and complex molded parts. This runner design helps an injection mold perform to its highest capability, enabling you to get the most out of your injection mold by controlling the variations that occur naturally during injection molding. Sprue Bushing Radius In North America two injection mold nozzle and sprue bushing radii are used, 1/2 and 3/4 inch. to 0. Utilize small rare-earth magnets to fully seat and hold hand loads in place to. Hot Runners and Temperature Controllers. Collapsible cores are mechanisms that release a circular undercut feature in a method similar to a lifter. Significance of Well-Designed Lifters in Injection Molding The significance of well-designed Injection Mold Lifter Design cannot be overstated in the realm of Injection Mold Lifter Design. The Question:. 1. You can looking for several suppliers to finish the same project together. This means the cross section of the boss walls will get bigger at the base. To make the molding challenge even greater for the injection molded part, the boss will need to have draft to allow the part to be ejected from the steel mold tool, at least on its outer diameter walls. 1. phase and/or overall molding cycle. Made of SKD61 steel with nitriding and vacuum heat treatment, these pins offer excellent wear resistance and durability for precision molds. Estimated reading time: 5 min. The guide block acts as an angle pin when the mold opens, and as a locking block during mold closing. Mit Flexionstabellen der verschiedenen Fälle und Zeiten Aussprache und relevante Diskussionen Kostenloser Vokabeltrainer . In the last months, we have developed a. It is typically mounted on the moving half of the mold, and it helps to lift the mold off the stationary half of the mold during. Check for “dings” or raised areas on the mold and platen—especially the locating-ring alignment hole. As stated in a previous article—vent at the last point of fill, vent the ejector pins and vent the lifters and the parting lines. A company with over 10 years experience of plastic injection molding. Therefore, the. Polycarbonate, acrylic, LSR - liquid silicone rubber) and name brands of. With a vision of tomorrow's fully automated factory, José Rodrigues, CEO of Liftmould PT, has entered into partnership agreements with a manufacturer of overhead cranes, a leading automotive supplier and a manufacturer of injection molding machines, in order to optimize its solutions for the all-electric plant. Keeping your injection molds clean is important for maintaining part quality and the life span of the mold. During the molding process, the air contained in the mold needs a way to escape, otherwise the melt will compress and trap that air in the cavity. It is important that the nozzle tip and the sprue seat have the same radius. One of the most common ways of adding venting is by manually machining it into the mold (Figs. Mobile: +86 186 6433 4605. m. 8 mm relief at the edges of the thread. Figure 6-2: A circular air vent on the insert parting surface. I would like to take this opportunity to appreciate support s and cares from all circles. Mold Lifters A lifter is a component in the mold that is normally attached to and actuated by the ejector system and moves at an angle to free internal molding detail (see Illustrations B and C). e. Genesis Americas Group LLC is an independently operated Manufacturers Representative and Reseller of Molds, Injection Molding Machinery, Molding Supplies and Mold Components. That is why there is an increasing demand for injection molds. Hot Runner and Controllers Product Handbook. The surface of the plastic product is more beautiful 3. A functional part for injection molding has to have draft angles that face both the cavity and core sides. 2 Injection Molding. The process involves the injection of heated, liquefied plastic into a temperature-controlled mold under high pressure. If you don't, you can eliminate the holes. Injection moulding can be performed with a host of materials mainly including metals (for which the process is called die-casting ), glasses, elastomers, confections, and most commonly thermoplastic and. For the full story click here: This idea is nothing new for the injection molding industry but at Fortify we take it to a whole new level with our 3d printed mold tools. Disclaimer! Please do not use this lifter concept directly in production. Note that reaching ejection temperature demanded a longer cycle. Checking this reduces the risk of plastic flashing into the ejection system. The plastic is melted in the injection molding machine and then injected into the mold, where it cools and solidifies into the final part. Injection moulding is a formative manufacturing technology, i. Our engineers have vast experience in part design, mold design and. For Our Paid Online and offline A. Due to Xometry’s Manufacturing Partner Network,. The design point of the snap joint lies in “joint”, i. Designing for plastic injection molding is like raising teenagers—some parts (and some teens) are more challenging than others. Smooth performance is attained due to the U-C. mold lifter design 【lifter material】 if main inserts use pre-harden steel,then lifter use 1. Use a thread with a pitch greater than 0. Subjects for the Injection Mold Design Guidelines will include: 1. AS FIRM AS A ROCK. The procedure of injection molding is as follows: First, a surface-treated metal plate is placed in a pocket of a mold. . The U-coupling travels freely in the T-Gib when the mold opens. For injection molding, order of magnitude ~ 0. The level of detail. . Put the holes in and leave the pins off. Injection molding sliders or lifters allow a part to be released from an injection mold by releasing it. This philosophy has driven us to offer a collection of Mold Lifting and Rigging hardware that has been certified and proof tested. S = T + 2-3mm (S is the horizontal travel distance of the slide; T is the undercut of the finished product); S = H * sinα-δ / cosα (δ is the gap between the angle pin and the slide, generally is 0. This enables us to run with injection pressures that are incredibly low compared to industry standards. The basic bodies are made from a high-strength and robust. Injection molding is the most widely used form of plastics processing worldwide. Home | AdientThe most common cause of mold halves separating is when a setup person uses only one eyebolt to lift a mold that doesn’t have a safety strap or a lifting bar. The rod of Cumsa's new rack lifter provides cooling to help ease small inserts out of injection molds. 2) Parker series 2-H hydraulic cylinders will be used. The product drawn is co. Designing an effective injection molding slide r is a crucial part of the mold creation process. . If you don't, you can eliminate the holes. For a free preliminary review of your design for manufacturing readiness, call to speak to your plastic engineer at (631) 580-3506. Unlike a slider, which pushes the. About Genesis. The characteristic is that the pushing force of the ejector is applied to drive the sideway. Quick Die Change (QDC) From PFA's unique portable Mechanical Die Lifters and spring loaded lifters to high force hydraulic clamping and lifting systems, you'll find the items to build a system to meet your needs at a price you can afford. It also varies with the product design details. Smooth performance is attained due to the U-C. This product can be used to systematically draw floating plates and inserts. 003 in. The metal mold is made of two parts: A and B sides. After the plastic fills the mold, it cools and solidifies into finished part (s) which can be easily removed when the machine opens up the mold. . . It utilizes a closed mold and a low-moisture low-oxygen environment. The plastic material cools and solidifies in the mold. 5 Reasons to Try Injection Molding eLearning. When there are through holes, recesses and bosses, etc. ThisEco Molding co. DE3483307D1 1990-10-31 ONE-PIECE INJECTION MOLDING AND INJECTION MOLD FOR THEIR PRODUCTION. The injection mold lifter is an essential component that makes the whole injection molding process a success. 00 - $200. Schöttli® Medical Molds. We'll learn how to calculate angle and stroke in lifter. For runny, non-viscous, crystalline resins such as nylon, PE, or PP, the recommended vent depth can range from 0. For injection molding, there are some common troublemakers during part design: Clips and snap fitsWith Tenor, maker of GIF Keyboard, add popular Injection Molding Gif animated GIFs to your conversations. Reduce the labor intensity of the staff 4. 5. Mechanical injecion mold Slide Design Standards, Hydraulic injecion mold Slide Design Standards, Injection Mold Lifter Standard, injection mold designThe lifter structure shown in the figure below can be used. Base：can install several lifters . 5mm). 3. Stone flush if necessary. Based on the required fill pressure, an additional 10% should be available on high setting. Designing an effective injection molding slider is a crucial part of the mold creation process. 1) A draft angle of 1½ to 2 degrees is required for most parts. POROUS MOLD MATERIALS. Here we'll calculate Lifter angle & Strokes. See moreAn injection molding lifter is an important component that is part of the injection molding mechanism that travels with the ejection stroke, moving on an angle to slide and pull the. 16 Pages. That’s the air escaping out of the nozzle until the hose is full of pressurized water. Plastic snap fit joint design. Lifters In Injection Molding. Base：can install several lifters . Because of this, they, by their design, prevent them from being ejected from the mold in the direction of mold opening. An injection molding lifter, also known as an ejector pin or stripper pin, is a crucial component used to push or eject finished plastic parts from the mold cavity after molding. Proper mold venting is essential for producing quality parts. 345)High quality Spring Steel 48 HRC Injection Mold Lifter Cumsa Undercuts Flexible Core from China, China's leading 1. It includes machines from 3,500 to 55,000 kN clamping force: from the entry-level t-win model and the customizable duo tech to the fast duo speed. The maximum slope a≤15 of the lifter , the friction surface of the lifter is nitriding. Take a look for more tips and tricks on finishing your. First, the process of injecting involves the heating of the raw rubber; the rubber is heated to form a liquid, and this liquid is made to flow more readily and freely. Lifter design for injection mold Support mold rapid prototyping. Creating molds for injection. An injection molding lifter is a mechanical component used in injection molds to facilitate the ejection of molded parts with complex undercuts or features. On the other hand, lifters release internal undercuts and recesses as well. Position Parting Lines. We partner with the top tooling facilities globally as well as the most technological hot runner mold temperature controller company.