on the side wall of a plastic product which make it impossible to release the mold, the molded product must be moved laterally. Efficiency Improve Magnetic Mold Clamping System Used For Injection Molding Machine . 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. About Genesis. A dynamic (versus static) mold-venting valve helps resolve the most common effects of poor cavity venting. to 0. Features. The blue component is the finished plastic part (cut-aw. (1). 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. A mold is made up of two halves that have a hollow space between them into which a melted material is injected. In This Tutorials We'll Discuss lifter calculations of Plastic Injection Mold Design. This is the contact point between the machine and the mold. Cost efficiency, it reduced core side compare with transfer method, but it still can achieve the 2k injection process in one mold. It utilizes a closed mold and a low-moisture low-oxygen environment. The. 02” deep (refer to drawing S5-1) and are always routed to atmosphere. JPS6230015A 1987-02-09 Mold device. Designing the toy prototype. Upon cooling the molten material in the mold, both. We are plastic mold and Custom Silicone Rubber Products manufavturing company in China. DCPD reaction injection molding is a process for quickly, efficiently creating large parts using dicyclopentadiene resin. Top 10% Annual Salary: $111,000 ($53. There’s also a block-like locking mechanism. 160"). 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. Employer Active 5 days ago. Typically, this fillet radius should be somewhere near 0. In This Tutorials We'll Discuss lifter calculations of Plastic Injection Mold Design. 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. Actual costs may vary based on the specific manufacturer, equipment, geographical location, and prevailing market conditions2. The Solution: Injection Molding Handloads. One final thing to keep in mind when you plan for changes: at Protolabs, we can make parts to tolerances of ±0. Lifter usually has a simpler structure and larger ejector force. Snap joint, AKA snap fit joint, is a common structure for connecting and fixing plastic injection molding products. The first step in designing a lifter for injection molding is to analyze the part design. As more material enters the mold cavity, it. com,injection molding lifter,This mold. 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. In the last months, we have developed a. There is a lot to discuss about lifters: design considerations, materials used, wear surfaces; buddy/helper pins,. . Hot Runner and Controllers Product Handbook. It allows for the creation of complex and intricate designs with ease and efficiency. 0005 in. 10. Type of Side Action. You can looking for several suppliers to finish the same project together. land and using maximum vent depths to get them as close to self-cleaning as possible. Copyright reserved by to the special requirements of a product, the mold release direction of a particular part may not be con. 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. When air venting is extremely difficult, the mold can adopt a. It's a single Nozzl. This method requires the parting surface of the mold to be well matched, and the gas in the cavity is evacuated through. 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. Injection Mold Lifter. Checking this reduces the risk of plastic flashing into the ejection system. 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. Incorporate the draft angles in both the cavity and core, with a slightly larger draft angle for the core. This enables us to run with injection pressures that are. . Checking this reduces the risk of plastic flashing into the ejection system. The mold is composed of two halves, the “A” side and “B” side. And force property of product will also decrease obviously. Progressive's UniLifters® System is the most widely used, standard product for molding and releasing undercuts. Injection Mold Lifter alan. There are times when porous materials like Porcerax are used in problem or backfill areas. This versatile method is utilized across various industries for the cost-effective mass production of complex shapes with high reproducibility. The action, tooling, and part are cut away for reference. The parting line location on the injection mold will have an effect on how the cavity and core (both halves of the injection mold) come together and seal. From 2. 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. There should be a distance of 1 – 3mm from the angle lifer to the product, with a clearance of 0. It is designed to move vertically within the mold cavity, lifting specific parts of the molded product off the core side of the mold. Rapid Prototyping Mold Design Injection Mold Making Injection Molding Service Vacuum Forming Molding Secondary Process Quality Assurance Insert Molding Services. Sizes above those nor-mally considered stan-dard use diameters appropriate for the weight of the mold. These slides play a pivotal role in enabling the production of complex. It can cause ejector pins to bend and break. Just a simple animation of how the lifter mold action works. It's a single Nozzle Hot runner mold with hydraulic. The specifics are as shown in. Subscribe for LIVE Chat During LectureJOIN NOW : Secure Seat NOWJoin Courses/ Program Contact : 88715119. In This Tutorials We'll Discuss Slider and Lifter animation of Classes. The lifters for Plastic injection mold 1. Quantities: 5000 Parts. 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. Mold vents should function the same way. We have established our brand as one of the. Including kinds off Mold and Die Components, such as Injection Mold lifter. PAN STONE PRECISION INDUS. A lifter is a component that moves on an angle with the ejection to release an undercut on a part. Injection molding is a manufacturing process that involves injecting molten plastic into a mold cavity to create a specific shape or design. The injection molding draft angle is an essential geometric feature built into molds for injection molding. Whenever we can add ventilation to a mold we do. 5 degrees is recommended for general injection molding jobs. 2023年11月22日 / 0 Comments / by Steve Yang. This will reduce the risk of damage to the parts and ensure that they can be ejected from the machine. Ketiga komponen ini merupakan satu kesatuan yang saling berhubungan secara otomatis. Injection Mold Design Handbook will take the reader through the process of conceptualizing and designing an injection mold that will produce the desired plastic part. Ace Roto-Mold’s Septic/Cistern line leads the industry in strength and durability. Costs for a modest, straightforward, single cavity plastic injection mold typically range from $1,000 to $5,000. At DME safety come first. In this video, you can get what is undercut, types of undercuts, how we can remove undercuts, what is slider & lifter in plastic molding, how to use slider &. We 100% guarantee your project will be successful. Note that reaching ejection temperature demanded a longer cycle. The slider usually has a hydraulic system that pushes it in a lateral direction. Take a look for more tips and tricks on finishing your. If there are surface defects such as gouges, nicks, scars, and dents in the mold cavity and sprue. we call them undercuts. 217 Pages. . [1] The cooling phase of the injection moulding process accounts for up to 75% of. . Deciding the best way to create undercuts on a part comes down to a few variables. Injection moulding is a formative manufacturing technology, i. . ABOUT THE AUTHOR: Jim Fattori is a third-generation injection molder with more than 40 years of molding experience. On the other hand, lifters release internal undercuts and recesses as well. Due to the constraints of the mold tooling and molding press, these side cores and lifters have a limited depth or pull. The design point of the snap joint lies in “joint”, i. Injection molding is one of the advanced manufacturing technologies for the low-cost and reliable production processes. 002-0. 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. Cashew gates often have the same limitations as tunnel gates in terms of size. We have established our brand as one of the leading manufacturers. Plastic mold is the abbreviation of a combined mold used for compression molding, extrusion, injection, blow molding and low foaming molding. was established by a strong & outstanding engineering team with plentiful experience in manufacturing RUBBER COMPRESSION MOLDING MACHINERY. The injection mold lifter design is an integral part of injection molding processing. To overcome the part are. A lifter is a component that moves on an angle with the ejection to release an undercut on a part. Lifter design for injection mold Support mold rapid prototyping. . 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. Correct lifter design can improve production efficiency, ensure product quality, and reduce production problems. Copyright reserved by to the special requirements of a product, the mold release direction of a particular part may not be con. 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. We partner with the top tooling facilities globally as well as the most technological hot runner mold temperature controller company. It is die-locked. 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. The lifter is a feature incorporated into the molding section of injection molding. Our exclusive SmartTech™ training combines face-to-face instruction, a powerful online training portal, and hands-on skill development. The surface of the mold cavity and sprue bush is rough. Virtual Instructor Led Training. High Pressure - VH. We stand behind these products and are confident they are the highest quality in the industry. Parting Lines in Injection Molding. Lifter Systems Application. 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. The bottom of your rib must also feature a fillet. 3. 14) The length of the slide foot must be 50% of the overall height of the slide. 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. Cashew Gate. This style of gate is used to get the injection location behind or below a show surface. Hill at Ferris State University. to 5 p. You can looking for several suppliers to finish the same project together. m. . The issues are never deliberate; they are due to various problems arising from the mold manufacturing process itself, the nature of the. 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. 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. Annual Revenue: 100000000-150000000 USD. Partially made into a spiral shape; 4. With an extensive product selection supported with superior customer service, you can count on PCS to meet your needs. Injection Molding: $0: Material cost: $0: Production cost: $0: Tooling cost: $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. Fig. Ketiga komponen tersebut secara sederhana dapat dilihat pada gambar berikut: Gambar 2. GB2085777B 1985-09-04 Making a sprue bushing for injection molding. Once the mold is opened and the part is ejected, you will have a hook that snaps to your mating part. 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. There are two types of components used within this method: lifters and sliders. 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. 518 of lifter travel. 5. Here are 15 drawings of injection mold parts about sliders and lifter. 1. The student willl be introduced in scientific molding. The pins are in red and springs are in yellow. Thus at 1,000 psi cylinder pressure, a cylinder larger than an 8" diameter bore would be needed. Design skills for connecting lifter:. 1. 2. 6 mm thickness looks difficult. 080" – 0. Due to its. Today we will demonstrate the use of the machine core pull feature. The Lifter System shown is made of standard components to simplify mold design and construction. 25T-0. Lifter usually has a simpler structure and larger ejector force. When venting stationary inserts or core pins in rib or part details with venting issues, I recommend no more than 0. 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. When there are through holes, recesses and bosses, etc. Propane powered with internal combustion engine and on-board PLC and equipment for remote starting of engine and transport. Weighing the pros and cons in advance saves time and money in the long run. The working principle difference between slider and. Once the initial costs have been paid the price per unit during injection molded manufacturing is extremely low. Essentially, it acts as the entry point for the material that will eventually form the desired product. Keep your most valuable assets, your employees and materials safe by using DME lifting hardware. 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. VectorForm Lifter System features and benefits Standard Slide Base (SB) Joint Slide Base (JB) Universal Slide. Friction and the heated barrel melt the plastic. 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. Plastik dikenal sebagai suatu bahan serbaguna dan ekonomis yang banyak digunakan berbagai macam produk kemasan. TheseIn This Tutorials We'll Discuss Lifter Design calculation for Plastic injection Mold Design. Among the others, the cooling step (step 3) is the most dominant stage by occupying roundly 70–80% of the cycle time []. Our engineers have vast experience in part design, mold design and. providing 0. 217 Pages. 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. The cavity and core in a typical plastic injection molding machine of an injection mold are the molding parts of the mold and play a key role in the shape of the molded part. Injection mold Slider operationAvoid adding threads directly on your injection molded part. For injection molding companies looking to take training to the next level, we offer on-site Scientific Molding training. Injection molding lifters are mechanical components that are used to lift or move specific features of a molded part during the ejection process. This is performed with the help of die-locking. The mark left on the part at the end of ejection mirrors the shape of the sleeve. Injection Mold Cost Overview. Generally, minimum distance that product can be demolded plus 2~3mm is taken as minimum stroke: 2. Use the insert seams on side; 3. 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. But the power comes from the clamping force of plastic parts to the lifter and spring. The student will learn in detail ejection system, injection system, cooling system, venting, gates and graining. Maximum operating temperature of 250° F or 120° C. Altanium Neo5. 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. Stone flush if necessary. At its most basic level, the slider is used to turn the vertical. Designing for plastic injection molding is like raising teenagers—some parts (and some teens) are more challenging than others. Mobile: +86 186 6433 4605. Based on the required fill pressure, an additional 10% should be available on high setting. This is a cut away of a basic lifter mechanism. S-7 can also be used for slides or lifters and hardened to 54-56 RC. Surface Finish Injection Molding: From Glossy to Textured Finishes. 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. A company with over 10 years experience of plastic injection molding. 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. Very high quality and an extreme fit may cost more. They are an essential part of the injection molding process, allowing manufacturers to create complex parts with undercuts, threads, and other intricate features. 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. Here I will be focusing on just one type—the tunnel gate—because of all the gate types, tunnel gates are the most misunderstood. We offer one stop injection mold services, such as mold design, plastics injection molding and custom injection molding. 5 Reasons to Try Injection Molding eLearning. Available sizes include: 10mm, 13mm, 16mm, and 20mm. Our company is a molding&engineering company, providing Custom CNC Machining services to our customers. 6 or R min≥0. As more material enters the mold cavity, it. The minimum or maximum plastic part wall thickness is dependent on the part size, material and design. No special coatings are necessary. . The mechanism for this mold slider is set up so that the lateral sliding. Convenient logistics service, fast quotation, 24-hour online service. 9375 of ejector stroke. Because of this, they, by their design, prevent them from being ejected from the mold in the direction of mold opening. 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. 00 - $200. The procedure of injection molding is as follows: First, a surface-treated metal plate is placed in a pocket of a mold. Lifters help to release internal undercuts or internal faces with no draft. 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. 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. We'll learn how to calculate angle and stroke in lifter. Check for “dings” or raised areas on the mold and platen—especially the locating-ring alignment hole. The price also tends to drop drastically as more parts are produced. 1) All mechanical slide design standards relative to shut-off, molding surfaces, and cooling will apply to the Hydraulic Slide designs. ThisEco Molding co. The rod of Cumsa's new rack lifter provides cooling to help ease small inserts out of injection molds. 2 Injection Molding. phase and/or overall molding cycle. 5MM; C is the stop surface, so generally a. One of the most common ways of adding venting is by manually machining it into the mold (Figs. 3. The molten material. Importance of Lifters in Injection Molding Enhancing Design Flexibility. The recommended minimum production volume for injection molding is 500 units. So how do the mold design engineers of pintejin molding solve this problem? 1. Essentially, it acts as the entry point for the material that will eventually form the desired product. 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. The depth, of course, means the dimension along the direction of the drawing. We stand behind these products and are confident they are the highest quality in the industry. 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. Other advantages include the following:An injection mold, also known as a die or injection mold tooling, is the single most expensive item built specifically to produce a plastic part. Subjects for the Injection Mold Design Guidelines will include: 1. . Its unit of measurement is degrees. 5. This mold was created for my Mold Design class with Mark Hill at Ferris State University. These mechanical components are designed to aid in the ejection of molded products from the mold cavity, ensuring smooth and efficient production processes. 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. Quality issues are always present, and this can affect the safety, function, and performance of the product in question. Plastic injection molding utilizes thermoplastics and thermoset materials to produce plastic components for various products. Handloads are inserts that are manually placed, or hand-loaded, into the mold to achieve features such as undercuts. Our lifter is equipped with cutting-edge technology, allowing for easy and secure lifting 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. 040-in. Multiply the desired depth by the desired width and you get the flow area in square inches. The first is using sliding cores and angle pins. This product can be used to systematically draw floating plates and inserts. Copyright reserved by: lifter in plastic injection mold is mainly used to form the internal undercuts of a molded plastic part. Unit of Measure. A dynamic (versus static) mold-venting valve helps resolve the most common effects of poor cavity venting. Hot Runners and Temperature Controllers. 9. At DME safety come first. It is the taper, or degree of inclination, of the mold’s walls along the drawing direction. Chat with one of our industry experts. When you partner with Fictiv, your plastics project can use handloads instead of injection molding sliders or lifters. 2) Vents in an injection mold should let the air out, but not the liquid plastic. 5mm). 010 inches. For Our Paid Online and offline A. That’s the air escaping out of the nozzle until the hose is full of pressurized water. At that point, you should look into improving the mold itself for the best results. Once the part has cooled, the lifter pushes up at an angle to release the undercut. Other advantages include the following:Injection molding is a manufacturing process that involves injecting molten plastic into a metal mold to assume the shape of the mold. 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. . Plastic Septic tanks are the future of wastewater management. Use the insert seams on side; 3. 4. The material is rotated forward by the screw and makes contact with the heated barrel. If the ejector plates have a guided system, the guide bushings will wear out prematurely. This detail shows a lifter at 10 degress with 2. Clean operation; Minimum effort; Faster operation; With or without power. 01/07/2017. 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. Bumpoffs are an easy way to mold lens covers, container caps, and similar parts with functions that call for them to snap into place. 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. advantages 8. Injection molding lifters are movable components within a mold that enable the creation of undercuts or features that require an angle relative to the direction of the mold’s opening and closing. Introduction. This enables us to run with injection pressures that are incredibly low compared to industry standards. The wall thicknesses of an injection molded part generally range from 2mm – 4mm (0. These two distinctions are determined by the construction’s body and forming components. . Material: PA66 + 30GF; Rubber. Faster return on investment: adopt permanent magnetic quick mold change system, the injection molding machine is more useful and suitable for more complex molds with high production speed, in order to achieve faster and more. Detail shows a lifter that has push pins to prevent the part from sticking to the lifter detail. Use a thread with a pitch greater than 0. In This Tutorials We'll Discuss Lifter Design calculation for Plastic injection Mold Design. Estimated reading time: 5 min. Here are some of the Specs:- 4 Cavities- 3 Lifters per Cavity- Slid. Lifter jam in Injection Mold; July 14, 2022 Lifter jam in Injection Mold. The four most common types of tunnel gate designs are (r-l) eliptical gate, D-gate, ball-gate and chisel gate. The guide block acts as an angle pin when the mold opens, and as a locking block during mold closing. Feature-based estimate. 10. 8 mm (32 threads per inch) Use a trapezoidal or buttress thread. It determines the amount of molten material injected into the mold cavity and influences factors such as filling consistency, part appearance, and material usage. Plastic material (melt) is then injected from a nozzle of an injection molding machine to the inside of the mold. 1. 0, 1,000 line. Most injection mold company usually apply the lifter structure as shown . Once the mold is opened and the part is. 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. Therefore, ejector pins injection molding involves the removal of completed parts from the die molds. The primary purpose of injection mold lifters design is to overcome design challenges that would otherwise hinder the ejection of molded parts, expanding the. Copyright reserved by: lifter in plastic injection mold is mainly used to form the internal undercuts of a molded plastic part. . Plastic in contact with copper alloys will set the sprue and runner faster, allowing more efficient ejection or removal by sprue pickers or robots. 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…The ejection of a plastic product is the last step in the plastic injection molding process. The entire mechanism that drives the lateral movement of the molded product is referred to as. 1) Vent land will be . If you don't, you can eliminate the holes. 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. Use the groove or insert installation part of the cavity; 2. First, the mold is prepared. In the process of injection molding, processing holes play different roles on different sliders. Discover lifter injection moldingat BAITO Mold factory . Sprue Bushing Radius In North America two injection mold nozzle and sprue bushing radii are used, 1/2 and 3/4 inch. R: Fillet radius. Reduce the labor intensity of the staff 4. 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. During this course, the student will learn the principles of injection molding and how design a injection mold. Free Download. No special coatings are necessary. The lifter also needs to add guide pin and guide bush. There is a lot to discuss about lifters: design considerations, materials used, wear surfaces; buddy/helper pins, deflection, shape (round vs. Contact jim@injectionmoldconsulting. For Our Paid O. Complete animation of 2 plate injection Mold design. Now comes the core function of a spotting press. Aluminum Bronze Slide Wear Plates Mold movements, those not in the nor-mal line of draw, use moving mechanisms referred to as slides, lifters. Today Randy takes a look at calculating angles for lifters and how angles can impact mold maintenance. Stone flush if necessary. 2) Parker series 2-H hydraulic cylinders will be used. Remedies: Pre-dry the plastic properly before molding. . To achieve this, a “slide” or “slider” is often used as a core-pulling mechanism. 003 in. Check for damage to the clamp bolt threads in the platens.