There should be a distance of 1 – 3mm from the angle lifer to the product, with a clearance of 0. ABOUT THE AUTHOR: Jim Fattori is a third-generation injection molder with more than 40 years of molding experience. The best multi-material injection molding solutions for plastic products; Contact Info. The design point of the snap joint lies in “joint”, i. Almost every plastic part created today is by injection moulding as it allows identical parts to be created in huge numbers, in a short space of time, and at very low cost per part. An injection molding lifter, also known as a mold lift or mold lifter, is a mechanical device that is used to support and position the mold during the injection. Sprue Bushing Radius In North America two injection mold nozzle and sprue bushing radii are used, 1/2 and 3/4 inch. Multiply the desired depth by the desired width and you get the flow area in square inches. The injection mold lifter is an essential component that makes the whole injection molding process a success. 37/hour) The employment of injection mold operators is expected to grow at an average rate over the next decade. Typically, the wall thickness is somewhere in the neighborhood of 50%-75% of your nominal wall thickness. 182 Pages. Efficiency Improve Magnetic Mold Clamping System Used For Injection Molding Machine . For this reason, the mold is typically filled to about 95-98% in the injection phase. Smooth performance is attained due to the U-C. . Reasonable fillet radius: 0. Lifter usually has a simpler structure and larger ejector force. We’re going to look into each one of these components and explain how they work and why we chose them. Removing the toy from molds. Mold alignment is critical to the molding process. It determines the amount of molten material injected into the mold cavity and influences factors such as filling consistency, part appearance, and material usage. Materials Used in Injection Molding Toys. Our goal at KTM is to offer our clients superior service and high-quality parts with on time delivery. Description. From a simple prototype tool to fully hardened production tools, our injection molding tool design matches the demands of your product to ensure that your tool will always perform with minimal wear and tear. It is designed to move vertically within the mold cavity, lifting specific parts of the molded product off the core side of the mold. You can looking for several suppliers to finish the same project together. Tunnel gates injection molding (also known as submarine gates): A tunnel, or submarine gate injection molding, is more complicated and requires a much higher degree of skill to add to the mold. A lifter is used for picking up the unwanted dust and damaged parts of the mould. Our company is a molding&engineering company, providing Custom CNC Machining services to our customers. In observance of the Thanksgiving Holiday, PCS Company will be closed on November 23rd and November 24th. The blue component is the finished plastic part (cut-aw. The radiused dovetail design lets the core blade seat automatically at the required angle with the mold closed. The student will learn in detail ejection system, injection system, cooling system, venting, gates and graining. , LTD. 1. 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. In plastic injection molding, core separates from cavity and is drawn in tooling direction. There’s also a block-like locking mechanism. The working principle difference between slider and. Discover lifter injection moldingat BAITO Mold factory . Undercuts in plastic injection molding. It is more stable than over-molding method. This is a cut away of a basic lifter mechanism. 6 or R min≥0. VectorForm Lifter System features and benefits Standard Slide Base (SB) Joint Slide Base (JB) Universal Slide. 080" – 0. Many people confuse the cavity with the core. This method requires the parting surface of the mold to be well matched, and the gas in the cavity is evacuated through. The specifics are as shown in. Routsis’s SmartTech™ is the most effective way to train plastics processors and. 18. Ketiga komponen tersebut secara sederhana dapat dilihat pada gambar berikut: Gambar 2. Mold Cores, Core Pins and Chill Plates 3. . Based on the demand and market trends, more buyers are asking for products with similar physical features. 50” wide x . Advantages. 25≤R/T≤0. The bottom of your rib must also feature a fillet. Here we'll calculate Lifter angle & Strokes. If at Mechanical injecion mold Slide Design Standards, Hydraulic injecion mold Slide Design Standards, Injection Mold Lifter Standard, injection mold design The lifter structure shown in the figure below can be used. In-House Full-Service Toolroom (design, fabricate, trial) Single-Cavity to 96+ Cavity Molds. Online chat is available Monday through Friday from 9 a. This feature-based cost estimator is for the plastic molding of production quantities (over 10,000 units), where more durable and costly tooling can be used due to its small impact on the per-part cost. Top 10% Annual Salary: $111,000 ($53. At this size, draft as low as 1½ degrees will allow for an easy, non-damaging release from the mold when the expected shrinkage of the thermoplastic material occurs. ManufacturerThe socket of the Cavity-Lifter Injection Mold must ideally accommodate/shrink the amount of material that will occur when casting the part. The maximum slope a≤15 of the lifter , the friction surface of the lifter is nitriding. This design is the same as movable mold lifter. Injection molding cost. Propane Powered. The mold is composed of two halves, the “A” side and “B” side. Cavity is usually the part that forms the external surface of the part, while core forms the inner surfaces. Essentially, it acts as the entry point for the material that will eventually form the desired product. In most cases, cavities are hardened to 50-52 RC. Bumpoffs are an easy way to mold lens covers, container caps, and similar parts with functions that call for them to snap into place. Rapid Prototyping Mold Design Injection Mold Making Injection Molding Service Vacuum Forming Molding Secondary Process Quality Assurance Insert Molding Services Overmolding Services; Industriesshallow side concave of plastic parts requires small core-pulling distance, yet when the molding area of side concave is large, a large core-pulling force is thereby needed, therefore, tilted lifter mechanism can be adopted for side parting and core-pulling. Made of SKD61 steel with nitriding and vacuum heat treatment, these pins offer excellent wear resistance and durability for precision molds. The molten material. Introduction. Using modern CAD software products, designers usually design Cavity-Lifter Injection Mold. So a lifter needs to be employed in those areas. Injection molding lifters are indispensable when it comes to creating designs with. 1, Preparation of Original Materials PA (polyamides) absorbs humidity easily, which has an effect on the course of working, like decreasing viscosity of the melt and appearing bubbles and crazing on the surface, etc. Altanium Neo5. There are many variables and impacts that lifters can have on your molding process and final parts. plastic injection moulding 5. The wrong ejection system can decrease the uptime and the life of the injection mold. These are free resources that are great for beginners. Two streams of resin are injected into the mold simultaneously, along with a catalyst (such as molybdenum or tungsten) to set off the proper chemical. 9. Disclaimer! Please do not use this lifter concept directly in production. The principal advantage of injection molding is the ability to scale production en masse. [1] The cooling phase of the injection moulding process accounts for up to 75% of. The process involves the injection of heated, liquefied plastic into a temperature-controlled mold under high pressure. Virtual instructor led training offers the traditional live, instructor-led training you’re used to from the comfort of your own home (or office). High Pressure - VH. Injection molding may be one of the best plastic molding processes around, but it isn’t without its flaws. 06”. Injection Molding Lifter; Injection Molding Cavity VS Core; Contact Info. But the general mechanism of action of the lifter remains the same for every system. Friction and the heated barrel melt the plastic. Estimated reading time: 5 min. 6 mm thickness looks difficult. The first is using sliding cores and angle pins. Our comprehensive range of coatings is designed to meet our customers’ exact specifications, offering a diverse selection that includes high micro-hardness coatings for abrasive materials such as glass, as well as corrosion-resistant. 8159 Injection Mold Lifter product, with strict quality control 48 HRC Injection Mold Lifter factories, producing high. The first step in designing a lifter for injection molding is to analyze the part design. It is usually good practice to have a slight fillet at this. The causes of parts sticking and sprue sticking are multifaceted, among which mold failure is one of the main reasons. An Injection Molding Sprue refers to the channel through which molten material is introduced into a mold. Dongguan Factory. In This Tutorials We'll Discuss lifter calculations of Plastic Injection Mold Design. Email: [email protected] are many different types of cold-runner gates used to fill the cavities in a two-plate mold. Get in Touch 1-800-521-0546. For a free preliminary review of your design for manufacturing readiness, call to speak to your plastic engineer at (631) 580-3506. An animation of my lifter mold cavity for Mr. The bottom of your rib must also feature a fillet. In This Tutorials We'll Discuss Lifter Design calculation for Plastic injection Mold Design. Essentially, it acts as the entry point for the material that will eventually form the desired product. The core blades are made of H-13 for easy. Weighing the pros and cons in advance saves time and money in the long run. T: Nominal wall thickness. In This Tutorials We'll Discuss Slider and Lifter animation of Classes. 2) Parker series 2-H hydraulic cylinders will be used. It does not have to be the same amount of tonnage as your injection pressure but needs to be enough to test parting surfaces and the movement of components such as sliders and lifters. Lifter can release undercut from a esay way by an simple formula. SOLIDWORKS mold design tutorial on making Injection Molding plastic. When an item can’t be moved with traditional rigging hardware, mold lifters are custom designed lifting points which are affixed to the load to facilitate movement. 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. After the molten plastic product has solidified, it is ready to be removed as a complete plastic product. It is a critical component in injection molding because it helps create complex geometries and. S-7 can also be used for slides or lifters and hardened to 54-56 RC. Base：can install several lifters . Keep your most valuable assets, your employees and materials safe by using DME lifting hardware. Standard & Custom Mold Base Supplies & Solutions. With an extensive product selection supported with superior customer service, you can count on PCS to meet your needs. 8 mm (32 threads per inch) Use a trapezoidal or buttress thread. In This Tutorials We'll Discuss Slider and Lifter animation of Classes. They enable the production of parts with textured surfaces, tapered features, and precise geometries. Cashew Gate. Types of design features that may constitute injection molding undercuts include recessed areas, hooks, overhands. About Genesis. SAN is commonly known as transparent and unbroken plastic, which has high softening temperature and shock temperature, high resistance to stress. 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). Our new concepts applied to the ejection of parts from termo-plastic molds permit, for example, the replacement of an ejector pin from the parting line of the mold whilst still in the press, allow extra stroke for just one ejector pin without the need of two sets of ejector plates or easy solutions for double ejection molds. When air venting is extremely difficult, the mold can adopt a. Much like a tunnel gate, the cashew gate is machined below the parting line and is automatically sheared during ejection. Taking into consideration design features like cams and lifters can further complicate this. Weighing the pros and cons in advance saves time and money in the long run. The price also tends to drop drastically as more parts are produced. 00. Melting and injecting molten material into molds. 5T, where T is your nominal wall thickness. The injection molding process is quite simple. As more material enters the mold cavity, it. Our company is molding&engineering company, provide Custom CNC Machining service to our customers. Contact expert. . There are two types of components used within this method: lifters and sliders. Because of this, they, by their design, prevent them from being ejected from the mold in the direction of mold opening. Lifters are critical components that impact tool maintenance, repair, and injection molding. It is a steel tool in the form of an L, with a long holding shank and a short toe. Lifter is use for release internal undercut from component. Propane powered with internal combustion engine and on-board PLC and equipment for remote starting of engine and transport. (i. Complete animation of 2 plate injection Mold design. In the front part of the product, the clamping line between the slider and the cavity is on the parting line, and the product is formed by the big slider around the product. (iii) Floor rammer. 65#, Dayang Industrial Zone, Songgang Street,. 003 in. Chat with one of our industry experts. An injection molding lifter is a mechanical component used in injection molds to facilitate the ejection of molded parts with complex undercuts or features. For Our Paid Online and offline A. This detail shows a lifter at 10 degress with 2. The mechanism for this mold slider is set up so that the lateral sliding. The design engineer must understand the part geometry, including any undercuts or other features that may require a lifter. spelling: injection molding) is a process for producing parts by injecting molten material into a mould, or mold. Propane powered transfer cars are used for handling coils, dies and molds. The issues are never deliberate; they are due to various problems arising from the mold manufacturing process itself, the nature of the. VectorForm Lifter System features and benefits Standard Slide Base (SB) Joint Slide Base (JB) Universal Slide. on the side wall of a plastic product which make it impossible to release the mold, the molded product must be moved laterally. Efficient and precisely engineered lifters play a crucial role in enhancing the overall production process by enabling the molding of intricate parts that. . The wrong ejection system can decrease the uptime and the life of the injection mold. 5. Sifat material plastik yang harus dimiliki olehHigh quality 1. The surface of the plastic product is more beautiful 3. Lifters: Unscrewing devices:. 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. 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%. 5. 18%. Injection molding lifters are mechanical components that are used to lift or move specific features of a molded part during the ejection process. Free Download. 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. Air Vents. providing 0. . The images above (Figures 1 and 2) show an example of a difficult-to-cool lifter with five molding surfaces. Injection molding lifters are mechanical components that are used to lift or move specific features of a molded part during the ejection process. It’s a very durable, impact-resistant tool steel that can be hardened up to 56 RC. . 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. 010 inches. We stand behind these products and are confident they are the highest quality in the industry. 1. DE3483307D1 1990-10-31 ONE-PIECE INJECTION MOLDING AND INJECTION MOLD FOR THEIR PRODUCTION. This steel also is much more stable through the heat-treating process, shrinking or expanding less than H-13 or stainless steel. Significance of Well-Designed Lifters in Injection Molding. In This Tutorials We'll Discuss lifter calculations of Plastic Injection Mold Design. TheseIn This Tutorials We'll Discuss Lifter Design calculation for Plastic injection Mold Design. The hand-loaded piece is ejected with the finished part and removed. Machinery, Apparatus And Equipment (Other Than The Machine-Tools Of Headings 8456 To 8465), For Type-Founding Or Type-Setting, For Preparing Or Making Printing Blocks, Plates, Cylinders Or Other Printing Components; Printing Type, Blocks, Plates, Cylinder. . 8 Pages. They are a combination of slider, lifter, spring, and eje. Double Valve - VD. 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). At Jaycon, the value added to any of our services is that we understand manufacturing from the design phase. 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. What is injection molding? Injection molding is the technique where molten plastic is injected into a metal mold. Rapid Prototyping Mold Design Injection Mold Making Injection Molding Service Vacuum Forming Molding Secondary Process Quality Assurance Insert Molding Services. Check for damage to the clamp bolt threads in the platens. Lifter Systems Application. On the other hand, lifters release internal undercuts and recesses as well. ThisEco Molding co. Vacuum Pumping. Industrial Molding Supplies since 1949 • 800-537-5375. (i. Note that reaching ejection temperature demanded a longer cycle. Injection molding represents the most important process for manufacturing plastic parts. The chart below shows recommended wall thicknesses for common injection molding resins. 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. 345)High quality Spring Steel 48 HRC Injection Mold Lifter Cumsa Undercuts Flexible Core from China, China's leading 1. Injection Mold Slide And Lifter Design Guideline | Injection mold design. The material cost is estimated from the part geometry and uses current material prices. 217 Pages. When venting stationary inserts or core pins in rib or part details with venting issues, I recommend no more than 0. The mold is composed of two halves, the “A” side and “B” side. 1) All mechanical slide design standards relative to shut-off, molding surfaces, and cooling will apply to the Hydraulic Slide designs. Maintenance for sleeves involves checking the fit of the outside of the core pin to the inside of the sleeve. It determines the amount of molten material injected into the mold cavity and influences factors such as filling consistency, part appearance, and material usage. Ace Roto-Mold’s Septic/Cistern line leads the industry in strength and durability. e. Precision injection moulding is a specialized process that offers unique benefits to various industries requiring high-precision parts. Lifters help to release internal undercuts or internal faces with no draft. 0, 1,000 psi line and below the 10. The process of collapsible core injection molding involves several steps, including the preparation of the mold, the injection of the resin, and the removal or collapsing of the core. 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. land and using maximum vent depths to get them as close to self-cleaning as possible. Partially made into a spiral shape; 4. Put the holes in and leave the pins off. 00 - $200. 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. com. Injection molding is widely used to make parts of various materials such as plastic, glass, and metals. Written by: Ben MacDonald, Senior Applications Engineer. Lifter Systems Application. 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. For Our Paid Online and offline A. Features. Lifter is use for release internal undercut from component. Aluminum Bronze Slide Wear Plates Mold movements, those not in the nor-mal line of draw, use moving mechanisms referred to as slides, lifters. At DME safety come first. This philosophy has driven us to offer a collection of Mold Lifting and Rigging hardware that has been certified and proof tested. Among the others, the cooling step (step 3) is the most dominant stage by occupying roundly 70–80% of the cycle time []. TRADITIONAL MACHINES VENTS. Types of plastic commonly used. Progressive's UniLifters® System is the most widely used, standard product for molding and releasing undercuts. Genesis Americas Group LLC is an independently operated Manufacturers Representative and Reseller of Molds, Injection Molding Machinery, Molding Supplies and Mold Components. If the ejector plates have a guided system, the guide bushings will wear out prematurely. When the mold is full, the machine. Our lifter is equipped with cutting-edge technology, allowing for easy and secure lifting of. Simple molds are typically in the $3,000 and $6,000 range while the price for large, more complex, high-production, or multi-cavity molds can cost $25,000 to $50,000 or more. In injection molding, the cavity is. Injection Molding. Designing a lifter for injection molding is a complex and technical process that requires careful consideration of many factors. In order to ensure smooth demould of product, distance of movement of slider must be sufficient. To lift, move, position and lower heavy dies on vertical presses, like stamping presses and vertical injection molding machines. Material: PA66 + 30GF; Rubber. An Injection Molding Sprue refers to the channel through which molten material is introduced into a mold. Add a 0. Steps in Injection Molding Toys. We heat the plastic to a molten phase, inject it into the mold and cool it into a preferred shape. The design of the mold, as well as the part being molded, has a significant impact on the success of the process. 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. If yo. Multiply the desired depth by the desired width and you get the flow area in square inches. About Genesis. 11. This means shorter cycle times, resulting in more parts produced per hour and lower production cost. In This Tutorials We'll Discuss Lifter Design calculation for Plastic injection Mold Design. the part this time is create Lifter design in injection molding. Mastering Mold Lifter Design At. In many cases, the function of the undercut can be achieved by clever design without requiring a side core. Plastik dikenal sebagai suatu bahan serbaguna dan ekonomis yang banyak digunakan berbagai macam produk kemasan. In this video we will learn about Injection Moulding Machine construction and working in production and manufacturing subjectTimestamps0:00 - Start0:05 - Con. Taking into consideration design features like cams and lifters can further complicate this. Ejector bars offer a good option for ejection on lengths of flat surface. 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. Demand for plastic products, such as packaging and electronic devices, is expected to drive demand for injection molding equipment. JPS6230015A 1987-02-09 Mold device. . Here are 15 drawings of injection mold parts about sliders and lifter. When venting stationary inserts or core pins in rib or part details with venting issues, I recommend no more than 0. Injection molding designs that require threads, bosses, or other features with undercuts can be successfully produced using Mold Lifters. 2. The injection mold lifter is an essential component that makes the whole injection molding process a success. B) Hydraulic injecion mold Slide Design Standards. Keywords: Injection molding, slider, undercut, cooling. Elevating Precision and Efficiency Mold Lifters play a pivotal role in achieving high-quality and intricate part geometries, enhancing the efficiency of the injection molding process. PVC injection molding is a very creative and reliable manufacturing process. They are an essential part of the injection molding process, allowing manufacturers to create complex parts with undercuts, threads, and other intricate features. e. They are a combination of slider, lifter, spring, and eje. The procedure of injection molding is as follows: First, a surface-treated metal plate is placed in a pocket of a mold. The product drawn is co. What is injection molding? Injection molding is the technique where molten plastic is injected into a metal mold. . PCS Company mold components are designed and. Upon these supports, PAN STONE PRECISION. Due to Xometry’s Manufacturing Partner Network,. Proper mold venting is essential for producing quality parts. Collapsible Core. These slides play a pivotal role in enabling the production of complex parts with undercuts, threads, and intricate features. But by following a few simple rules, even the most difficult of these challenges can be overcome (parenting aside). This video will explain how to injection mold hydraulic internal slide work? hydraulic is assembled at core plate, when it act, slide core pin will take slid. 14) The length of the slide foot must be 50% of the overall height of the slide. 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. It is suitable for mass-producing products, since raw material can be converted into a molding by single procedure The plastic injection molding process is a cyclic process. A lifter is a component that moves on an angle with the ejection to release an undercut on a part. Snap joint, AKA snap fit joint, is a common structure for connecting and fixing plastic injection molding products. material is formed from an amorphous shape into a fixed shape defined by a mould tool. Prerequisites: The dimensions of the mold plate, core, and base have been determined. It is a feature that the cavity and core cannot capture alone. Genesis Americas Group LLC is an independently operated Manufacturers Representative and Reseller of Molds, Injection Molding Machinery, Molding Supplies and Mold Components. Most injection mold company usually apply the lifter structure as shown . After the molten plastic product has solidified, it is ready to be removed as a complete plastic product. . For the full story click here: Molding Gets a Face Lift. 030- to 0. 1. This must have at least 3 degrees shut off. Including all kinds of Mold And Die Components, such as Injection Mold lifters. Min Order: 1 set. Therefore, the. Below is a detailed injection mold lifter design guide: Step 1: Analyze the Part Design. It can cause the ejector pins to push against the molded part unevenly, which can distort the part or cause it. This detail shows a lifter at 10 degress with 2. The Solution: Injection Molding Handloads. D. POROUS MOLD MATERIALS. e. Annual Revenue: 100000000-150000000 USD. Injection molding is a manufacturing process that involves injecting molten plastic into a mold cavity to create a specific shape or design. Thick sections take longer to cool than thin ones. This defect occurs when plastics material flow across the mold cavity rather than forming a fountain flow and freezing to the mold cavity. Parting Lines in Injection Molding. This installment delves into more detail on some variables of design and fitting/timing of the lifters, which can cause issues or failures during molding. If there are surface defects such as gouges, nicks, scars, and dents in the mold cavity and sprue. From small electronic device components to larger household items, lifters facilitate the manufacturing of complex shapes and intricate designs. Weitere Aktionen. Quantities: 5000 Parts. Subscribe for LIVE Chat During LectureJOIN NOW : Secure Seat NOWJoin Courses/ Program Contact : 88715119. A dynamic (versus static) mold-venting valve helps resolve the most common effects of poor cavity venting. Plastic material injection molding is a common process in many industries. It doesn’t matter whether the eyebolt is in the ejection half or the injection half. Typically integrated into the mold, this mechanism comprises moving components that lift or retract during the molding cycle. In most cases, cavities are hardened to 50-52 RC. Disclaimer! Please do not use this lifter concept directly in production. Because of this, they, by their design, prevent them from being ejected from the mold in the direction of mold opening. 0005 in. Contact Info. Gating System For Plastic Injection Molding: Sprue, Gates and Runners Sprue. Processing according to Cavity-Lifter Injection Mold standards. For a free preliminary review of your design for manufacturing readiness, call to speak to your plastic engineer at (631) 580-3506. operating pressure: 400 bar. Typically, this fillet radius should be somewhere near 0. A functional part for injection molding has to have draft angles that face both the cavity and core sides. Chat with one of our industry experts. Sliders and Lifter Design in Mold Wizards With Calculations or How to Design and Slider & lifter in Injection Mould DesignIn this tutorials, We'll Design Sli. Undercut molding is an essential process for creating hooks, grooves, and other elements that have a direct effect on the functionality of your part. To help you navigate this process, here’s a step-by-step guide for designing an injection slide mold: 1.