More viscous amorphous materials, such as PC, TPU or PEEK, can have a recommended vent depth range from. Designing an effective injection molding slider is a crucial part of the mold creation process. The plastic is melted in the injection molding machine and then injected into the mold, where it cools and solidifies into the final part. Melting and injecting molten material into molds. 4 Roller Ball Bars or Die Lifters 3. Demand for plastic products, such as packaging and electronic devices, is expected to drive demand for injection molding equipment. Disclaimer! Please do not use this lifter concept directly in production. 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. The reasons and corresponding solutions are described as follows: 1. Our engineers have vast experience in part design, mold design and. The injection molding process requires the use of an injection molding machine, raw plastic material, and a mold. At Jaycon, the value added to any of our services is that we understand manufacturing from the design phase. B) Hydraulic injecion mold Slide Design Standards. Complete animation of 2 plate injection Mold design. AS FIRM AS A ROCK. But the power comes from the clamping force of plastic parts to the lifter and spring. 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. It includes several integrated stages which are (1) injection, (2) packing, (3) cooling, and (4) ejection []. It also varies with the product design details. 2) Parker series 2-H hydraulic cylinders will be used. Plastic material (melt) is then injected from a nozzle of an injection molding machine to the inside of the mold. For injection molding companies looking to take training to the next level, we offer on-site Scientific Molding training. Types of design features that may constitute injection molding undercuts include recessed areas, hooks,. The lifter is a feature incorporated into the molding section of injection molding. The mark left on the part at the end of ejection mirrors the shape of the sleeve. The injection mold lifter design is an integral part of injection molding processing. In This Tutorials We'll Discuss Lifter Design calculation for Plastic injection Mold Design. For a free preliminary review of your design for manufacturing readiness, call to speak to your plastic engineer at (631) 580-3506. The bottom of your rib must also feature a fillet. PCS Company mold components are designed and manufactured to exceed demanding customer expectations for quality, reliability, and performance. 0 /5 · 12 reviews · "Nice service"The injection molding process is mostly used when there is a need to produce an end product with requirements involving tight tolerances with very high accuracy and precision. Mold Components Nitriding SKD61 Vacuum Heat Treated Ejector Pin For Precision Mold,stepped ejector pin,mould ejector pin,core pin,Buy stepped ejector pin From BAITO Mold !,stepped ejector. They are an essential part of the injection molding process, allowing manufacturers to create complex parts with undercuts, threads, and other intricate features. The available diameters of the guide pin. Injection Mold Slide And Lifter Design Guideline | Injection mold design. The recommended minimum production volume for injection molding is 500 units. The price also tends to drop drastically as more parts are produced. A series of plastic parts with different shapes and sizes can be processed by the coordinated change of punch, die and auxiliary forming…A lifter is a mechanism used in the design and manufacturing of molds, typically in plastic injection molds or die-casting molds. A parting-line vent is. The injection molding press has two parts, a press to open and close the shape and an injection extruder to infuse material into the formed hole. 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. Lift and/or move up to 50 pounds. Injection moulding is a formative manufacturing technology, i. Injection moulding (U. This was in turn creating excess load on the lifters leading to twisting or imbalance within the whole of the ejector assembly especially when. The U-coupling travels freely in the T-Gib when the mold opens. Once the mold is opened and the part is. I would like to take this opportunity to appreciate support s and cares from all circles. Injection molding lifters are mechanical components that are used to lift or move specific features of a molded part during the ejection process. By positioning the parting line right on the protruding feature, you can avoid the undercutting problem. These mechanical components are designed to aid in the ejection of molded products from the mold cavity, ensuring smooth and efficient production processes. The Solution: Injection Molding Handloads. 1) All mechanical slide design standards relative to shut-off, molding surfaces, and cooling will apply to the Hydraulic Slide designs. Texas Injection Molding engineers work with our customers to develop and design the most robust plastic injection molded products. 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. Bumpoffs are an easy way to mold lens covers, container caps, and similar parts with functions that call for them to snap into place. The first is using sliding cores and angle pins. This video contains several injection mold delicate delay mechanisms for ejection and core pulling. It is a feature that the cavity and core cannot capture alone. 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. In most cases, the lifter rod or shank will be shortened by 0. . Using modern CAD software products, designers usually design Cavity-Lifter Injection Mold. Today Randy takes a look at calculating angles for lifters and how angles can impact mold maintenance. It’s a passage that connects the molding machine’s nozzle to the cavity of the mold. 1) A draft angle of 1½ to 2 degrees is required for most parts. As the molten plastic flows into the closed die and fills the. 2. Remedies: Pre-dry the plastic properly before molding. 0, 1,000 psi line and below the 10. Complete animation of 2 plate injection Mold design. we call them undercuts. This is, however. . When molding a fiber-filled resin, a “Reverse Heat Profile” is. . . Mobile: +86 186 6433 4605. It helps create uniformity and consistency in the final product. Rapid Prototyping Mold Design Injection Mold Making Injection Molding Service Vacuum Forming Molding Secondary Process Quality Assurance Insert Molding Services. The Lifter System shown is made of standard components to simplify mold design and construction. The mark left on the part at the end of ejection mirrors the shape of the sleeve. 2101 Lifter Injection Molding Sprung Core factory from China, China's leading 1. Creating molds for injection. 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. Here we'll calculate Lifter angle & Strokes. Lifter: The injection mold lifter is an essential component that makes the whole injection molding process successful. 182 Pages. 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. Collapsible Core. All HUSKY INJECTION MOLDING SYSTEMS catalogs and technical brochures. From small electronic device components to larger household items, lifters facilitate the manufacturing of complex shapes and intricate designs. We offer one stop injection mold services, such as mold design, plastics injection molding and custom injection molding. Dongguan Factory. Due to the constraints of the mold tooling and molding press, these side cores and lifters have a limited depth or pull. We partner with the top tooling facilities globally as well as the most technological hot runner mold temperature controller company. 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. Ketiga komponen ini merupakan satu kesatuan yang saling berhubungan secara otomatis. 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. In many cases, the function of the undercut can be achieved by clever design without requiring a side core. It's no different with injection molding — we ensure your files are designed for manufacturability, while minimizing appearance of certain standard markings, such as ejector pin marks, gate marks, and parting lines. When there are through holes, recesses and bosses, etc. Copyright reserved by: lifter in plastic injection mold is mainly used to form the internal undercuts of a molded plastic part. . com. The parting line is the intersection plane between both molds. applications. The design of the mold, as well as the part being molded, has a significant impact on the success of the process. A company with over 10 years experience of plastic injection molding. Injection molding is the most cost-competitive technology for manufacturing high volumes of identical plastic parts. In the last months, we have developed a. Lifters. Slides or sliders are used to release any external undercuts or recesses on the outer surface of a part that may prevent it from being removed from the mold cavity. Injection molding lifters consist of a blade-like or pin-like lifting mechanism, an ejector plate, and a retainer plate. If there are surface defects such as gouges, nicks, scars, and dents in the mold cavity and sprue. 1. 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. For Our Paid Online and offline A. The blue component is the finished plastic part (cut-aw. This rule of thumb applies to parts with mold depths of up to 2 inches. Install the slotted slat core in the longitudinal position and set hole. Proper mold venting is essential for producing quality parts. Designing a lifter for injection molding is a complex and technical process that requires careful consideration of many factors. 2. The process involves the injection of heated, liquefied plastic into a temperature-controlled mold under high pressure. 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. The depth, of course, means the dimension along the direction of the drawing. The procedure of injection molding is as follows: First, a surface-treated metal plate is placed in a pocket of a mold. For example, Injection molding a 100 mm long part in 0. There are many variables and impacts that lifters can have on your molding process and final parts. Due to Xometry’s Manufacturing Partner Network,. We 100% guarantee your project will be successful. The major contribution for the lifters scoring was the load of the molded part itself. 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. 00. 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. For a free preliminary review of your design for manufacturing readiness, call to speak to your plastic engineer at (631) 580-3506. Essentially, it acts as the entry point for the material that will eventually form the desired product. , LTD. The surface of the mold cavity and sprue bush is rough. The hand-loaded piece is ejected with the finished part and removed. To insure proper fit up, the nozzle radius is. S. The characteristic is that the pushing force of the ejector is applied to drive the sideway. Injection Molding Tooling: $0: Disclaimer: The above cost analysis uses data based on industry averages and typical manufacturing practices, and should therefore be viewed only as a guide. But by following a few simple rules, even the most difficult of these challenges can be overcome (parenting aside). Essentially, it acts as the entry point for the material that will eventually form the desired product. Propane powered transfer cars are used for handling coils, dies and molds. . 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,. We offer lifter injection molding to global customers. 2. land and using maximum vent depths to get them as close to self-cleaning as possible. S. 010 inches. Virtual Instructor Led Training. It can produce highly efficient, durable and complex parts with high precision and cost-effectiveness. Including all kinds of Mold And Die Components, such as Injection Mold lifters. Lifters are critical components that impact tool maintenance, repair, and injection molding. If you don't, you can eliminate the holes. 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. . 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. It is best practice to maintain a uniform thickness throughout an injection-molded part. Lifters: Unscrewing devices:. . 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. 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. But wall thickness also depends on the material used. The injection mold angle lifter is the mechanism in the injection mold to release the plastic molded parts undercut and eject the part out of the mold. 2. Materials Used in Injection Molding Toys. To lift, move, position and lower heavy dies on vertical presses, like stamping presses and vertical injection molding machines. e. Feature-based estimate. Discover lifter injection moldingat BAITO Mold factory . Here are 5 ways that can help you effectively deal with undercut molding designs. This enables us to run with injection pressures that are. So how do the mold design engineers of pintejin molding solve this problem? 1. This philosophy has driven us to offer a collection of Mold Lifting and Rigging hardware that has been certified and proof tested. Today Randy takes a look at calculating angles for lifters and how angles can impact mold maintenance. 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. com; injectionmoldconsulting. The metal mold is made of two parts: A and B sides. Genesis Americas Group LLC is an independently operated Manufacturers Representative and Reseller of Molds, Injection Molding Machinery, Molding Supplies and Mold Components. A “Flat Heat Profile” is generally recommended when developing a molding process : with a new resin. 12” - . In plastic injection molding, core separates from cavity and is drawn in tooling direction. Injection Mold Lifter. FR2564773B1 1987-02-13 MONOBLOCK MOLDS FOR INJECTION MOLDING OF PLASTICS. 003 in. Check for “dings” or raised areas on the mold and platen—especially the locating-ring alignment hole. But manufacturing the same part in 2 mm thickness with localized 5. The entire mechanism that drives the lateral movement of the molded product is referred to as. Ejector bars offer a good option for ejection on lengths of flat surface. metode-metode lain yang biasa digunakan. . LinkedIn. 5mm). Altanium Neo5. Here are 15 drawings of injection mold parts about sliders and lifter. VectorForm System components are engineered for the common injection molding environment. In This Tutorials We'll Discuss Lifter Design calculation for Plastic injection Mold Design. There is a lot to discuss about lifters: design considerations, materials used, wear surfaces; buddy/helper pins,. The vent clearance can be . On the other hand, lifters release internal undercuts and recesses as well. They play a crucial role in injection molding, allowing the production of complex parts with undercuts on both the exterior and interior surfaces. The mechanism for this mold slider is set up so that the lateral sliding. Randy Kerkstra recently published an article at the Plastics Technology site (ptonline. Today we will demonstrate the use of the machine core pull feature. Experience exceptional customer service. Efficiency Improve Magnetic Mold Clamping System Used For Injection Molding Machine . Stone flush if necessary. For injection molding, order of magnitude ~ 0. When alignment issues arise the lifter can seize and potentially break causing part quality problems, molding production downtime and, possibly catastrophic damage to the mold surface itself. This style of gate is used to get the injection location behind or below a show surface. (E. It is the taper, or degree of inclination, of the mold’s walls along the drawing direction. Engaged in mold production, manufacturing, and processing for five years, exported to. EST. DCPD reaction injection molding is a process for quickly, efficiently creating large parts using dicyclopentadiene resin. Mechanical injecion mold Slide Design Standards, Hydraulic injecion mold Slide Design Standards, Injection Mold Lifter Standard, injection mold. Generally, minimum distance that product can be demolded plus 2~3mm is taken as minimum stroke: 2. It’s a very durable, impact-resistant tool steel that can be hardened up to 56 RC. 50” wide x . Processing according to Cavity-Lifter Injection Mold standards. 5T, where T is your nominal wall thickness. For the full story click here: Molding Gets a Face Lift. . POROUS MOLD MATERIALS. After the molten plastic product has solidified, it is ready to be removed as a complete plastic product. plus the shrink tolerance of the resin. What is Injection Molding Lifter. The material is rotated forward by the screw and makes contact with the heated barrel. Most injection mold company usually apply the lifter structure as shown . 2344 for plastic injection mold; if main insert use harden up steel,then lifter need azotizing process （718H、2316H） Below is a mold lifter animation from our relative company,their website lifter core assembly may be secured to the slide base in a variety of ways, maximizing design flexibility. Engaged in mold production, manufacturing and processing for five years, exported to major countries around the world. They are typically attached between the ejector retainer and ejector plates with some mechanism Illustration C: Lifter actuation shown during ejection. Created by the scientific injection molding experts at Routsis Training,. A lifter is a component that moves on an angle with the ejection to release an undercut on a part. Once the initial costs have been paid the price per unit during injection molded manufacturing is extremely low. Put the holes in and leave the pins off. And force property of product will also decrease obviously. Weighing the pros and cons in advance saves time and money in the long run. Add a 0. 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. The surface of the plastic product is more beautiful 3. 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. Injection Molding Extrusion Blow Molding Molds & Tooling Manufacturing Recycling Additive Manufacturing Features Thermoforming Compounding Rotomolding. In molding, simpler is better. 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. Bumpoffs. For example, overmolding and insert molding. (i. 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. In order to ensure smooth demould of product, distance of movement of slider must be sufficient. The engineer needs to consider the complexity of the part design and the tolerances required. 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. 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. This hollow space is shaped by both the core and the cavity when the mold is closed. Web: Injection Molding Short is a manufacturing process that involves injecting molten material, typically plastic, into a mold cavity. Smooth performance is attained due to the U-C. 003 in. An injection molding lifter is a mechanical component used in injection molds to facilitate the ejection of molded parts with complex undercuts or features. Virtual instructor led training offers the traditional live, instructor-led training you’re used to from the comfort of your own home (or office). One face of the block forms the inside leg of the hook while the other three faces of the block are drafted at 3 degrees and create shut offs against the mating sides in the pocket. An injection mold slider is a tool used in the injection molding process. The molten material. In This Tutorials We'll Discuss Slider and Lifter animation of Classes. 1mm on each side of the base made of the 738 steel, while the length tolerance is +1. Ace Roto-Mold’s Septic/Cistern line leads the industry in strength and durability. It is important that the nozzle tip and the sprue seat have the same radius. Double Valve - VD. material is formed from an amorphous shape into a fixed shape defined by a mould tool. The slider is an important part of the plastic injection mold to complete the side core extraction, it is mainly connected with the molding core and driven by the inclined guide column for core extraction. Quick change die carts and mold carts help reduce set up times by 80% while also reducing manual labor and improving. Virtual Instructor Led Training. mold lifter design 【lifter material】 if main inserts use pre-harden steel,then lifter use 1. . The mechanism for this mold slider is set up so that the lateral sliding. The pins are in red and springs are in yellow. 040-in. We have established our brand as one of the. Lifter is use for release internal undercut from component. They are a combination of slider, lifter, spring, and eje. This must have at least 3 degrees shut off. Bumpoffs are an easy way to mold lens covers, container caps, and similar parts with functions that call for them to snap into place. Detachable separation design, easy and fast installation, is the best choice for mold inserts and machine precision parts. Mit Flexionstabellen der verschiedenen Fälle und Zeiten Aussprache und relevante Diskussionen Kostenloser Vokabeltrainer . Cavity is usually the part that forms the external surface of the part, while core forms the inner surfaces. Contact jim@injectionmoldconsulting. Check for damage to the clamp bolt threads in the platens. The minimum or maximum plastic part wall thickness is dependent on the part size, material and design. 5. Its unit of measurement is degrees. 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. QDC systems speed up production, keep presses running, and make die changes simple and efficient. g. Resultingly, it becomes necessary to include undercuts when your injection molding design has these features. Plastic mold is the abbreviation of a combined mold used for compression molding, extrusion, injection, blow molding and low foaming molding. Unlike a slider, which pushes the injection molded part to one side, a lifter pushes the part upward and at an angle. Almost every plastic part created today is by injection moulding as. 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. Auto shut-down when transfer is completed. At that point, you should look into improving the mold itself for the best results. 25T-0. Injection moulding (U. The action, tooling, and part are cut away for reference. This video contains several injection mold delicate delay mechanisms for ejection and core pulling. Keep your most valuable assets, your employees and materials safe by using DME lifting hardware. Plastik dikenal sebagai suatu bahan serbaguna dan ekonomis yang banyak digunakan berbagai macam produk kemasan. 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. What is an Injection Molding Lifter? 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 molding process. Free Download. Maintenance for sleeves involves checking the fit of the outside of the core pin to the inside of the sleeve. R: Fillet radius. Estimated reading time: 5 min. What is Injection Molding Lifter. The design of injection molding is the initial process to produce a large-scale product of plastic material which heated and injected into the mold. Barrel Repair Injection and Extrusion : 574: Barrel Tape Measure Injection : 462: Barrel Tumblers : 635:. These are free resources that are great for beginners. 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. Why is that? Because the lifter is used at. Injection molding can handle large parts as well as tiny parts. VectorForm Lifter System features and benefits Standard Slide Base (SB) Joint Slide Base (JB) Universal Slide. 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. 4. Among the others, the cooling step (step 3) is the most dominant stage by occupying roundly 70–80% of the cycle time []. At DME safety come first. Sprue Bushing Radius In North America two injection mold nozzle and sprue bushing radii are used, 1/2 and 3/4 inch. Checking this reduces the risk of plastic flashing into the ejection system. 345)High quality Spring Steel 48 HRC Injection Mold Lifter Cumsa Undercuts Flexible Core from China, China's leading 1. 030- to 0. Now comes the core function of a spotting press. The metal mold is made of two parts: A and B sides. CO. 5 degrees is recommended for general injection molding jobs. 9. Lifters In Injection Molding. Employees: 100~200. The size of. 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. When air venting is extremely difficult, the mold can adopt a. . Designing an effective injection molding slide r is a crucial part of the mold creation process. The first step in designing a lifter for injection molding is to analyze the part design. The radiused dovetail design lets the core blade seat automatically at the required angle with the mold closed. Hot Runner and Controllers Product Handbook. The slider usually has a hydraulic system that pushes it in a lateral direction. Routsis’s SmartTech™ is the most effective way to train plastics processors and. Fig. At the point when the shape is shut, the softened material is infused into the form cavities under high tension at that point, the form is cooled by water circling and when the parts have set, the. advantages 8. At its most basic level, the slider is used to turn the vertical. No special coatings are necessary. Account. . Injection molding is one of the advanced manufacturing technologies for the low-cost and reliable production processes. To get the cost of plastic injection molding products it is much easy than getting a cost for export plastic mold,. Our company produces all kinds of specifications of different grades of vulcanized pressed and liquid silicone injection molding rubber products, such as silica gel covers, infant pacifiers, silicon rubber key-presses, slip-preventing pads, quakeproof. This defect occurs when plastics material flow across the mold cavity rather than forming a fountain flow and freezing to the mold cavity. providing 0. 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. The maximum slope a≤15 of the lifter , the friction surface of the lifter is nitriding. 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. Draft angles are a required feature of injection-molded custom parts. Design skills for connecting lifter:. 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. (2). 5. mold lifter design 【lifter material】 if main inserts use pre-harden steel,then lifter use 1. com,injection molding lifter,This mold. injection moulding machine and components 2. ManufacturerThe socket of the Cavity-Lifter Injection Mold must ideally accommodate/shrink the amount of material that will occur when casting the part. Typically, this fillet radius should be somewhere near 0. A slider is a mold. 030- to 0. Do not put the nut in the mold for injection molding, which can realize injection molding automation. Actual costs may vary based on the specific manufacturer, equipment, geographical location, and prevailing market conditions2. Injection pressure controls the rate at which the material enters the mold. 1. Lifter: Lifter is a kind of tilted top plate mechanism, through the linear movement of the top bar, the lifter is pushed upward or downward to complete the demolding action of the product.