{"id":3560,"date":"2016-06-27T16:48:08","date_gmt":"2016-06-27T08:48:08","guid":{"rendered":"http:\/\/hanchang.designworks.tw\/?post_type=portfolio&#038;p=3560"},"modified":"2026-09-07T16:28:02","modified_gmt":"2026-09-07T08:28:02","slug":"multi-functional-computerized-rubber-injection-molding-machine","status":"publish","type":"portfolio","link":"https:\/\/hanchang.com.tw\/en\/portfolio-item\/multi-functional-computerized-rubber-injection-molding-machine\/","title":{"rendered":"Rubber Injection Molding Machine for Seals and Gaskets"},"content":{"rendered":"<section  class='av_textblock_section av-av_textblock-38de8658e34b1c811a7e6a2d06387eca '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock hc-product-layout-block'  itemprop=\"text\" ><style>#top.postid-3560 #main main.content {width:100%;border:0;padding-right:0;float:none;}\n#top.postid-3560 .hc-product-layout 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A screw preplasticizes manually supplied rubber strip; an overhead hydraulic plunger injects it into the closed mold. 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Material applications include NBR, EPDM, FKM, natural rubber and synthetic rubber. The actual formulation, hardness, flow behavior and curing characteristics determine the molding conditions for a particular job.\"}}, {\"@type\": \"Question\", \"name\": \"Does the screw inject the rubber, or does a plunger do the injection?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The screw conveys and preplasticizes the manually supplied rubber strip. An overhead hydraulic plunger then injects the compound into the already closed mold. The rubber cures in the mold, which opens for manual part removal. This differs from compression molding, where a charge is placed directly into an open mold cavity before closing and pressing.\"}}, {\"@type\": \"Question\", \"name\": \"What do the three pressure stages and four flow stages control?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Both the injection action and the overall hydraulic cycle have three pressure stages and four flow stages. Operators can adapt pressure and flow to compound behavior, part geometry and runner layout, giving filling conditions and machine movements settings suited to the production task. Working conditions are established through mold trials.\"}}, {\"@type\": \"Question\", \"name\": \"Does the vertical rubber injection press have a venting function?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The machine has mold-opening\/closing venting to help gas escape from the mold. Its effectiveness also depends on the mold's vent paths, the compound and the molding conditions. When investigating air marks or incomplete filling, consider these factors together instead of simply increasing injection pressure.\"}}, {\"@type\": \"Question\", \"name\": \"How should I compare shot capacity in C.C. with a specification in grams?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"C.C. means cubic centimeters and describes volume. Grams describe mass, so conversion requires the density of the actual rubber compound. The required shot includes the material for every cavity and the runners. Maximum shot volume is therefore not the weight of a single part or a direct statement of finished-part weight per cycle.\"}}, {\"@type\": \"Question\", \"name\": \"How do I select the right model and clamping force?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Match the complete shot requirement, clamping force, platen dimensions, opening stroke and mold mounting conditions. Clamping demand depends on projected cavity area, cavity pressure and tooling design, not part dimensions alone. Check the specifications for the proposed configuration: a model number is an identifier, not a tonnage rating, and more tonnage alone does not establish a better fit.\"}}, {\"@type\": \"Question\", \"name\": \"How many rubber parts can the machine produce per shift?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Output depends on the working cavity count and the complete production cycle, including strip supply, injection, curing, mold opening, manual removal and shop-floor handling. Compound formulation and part thickness affect curing time. Use relevant cycle records or mold-trial data to discuss a production target; maximum shot capacity alone cannot establish parts per shift.\"}}, {\"@type\": \"Question\", \"name\": \"What information is needed for a rubber injection moulding machine quotation?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Start with a part photo or drawing, the rubber compound and your intended output. Add mold dimensions and cavity count if tooling already exists; you do not need a complete tooling file to begin the conversation. Price should correspond to the selected model, injection unit and agreed scope of supply, with electrical requirements, tooling and ancillary needs clearly identified so quotations address the same production task.\"}}]}<\/script><\/p>\n<div class=\"hc-product-layout\">\n<section class=\"hc-hero\">\n<div class=\"hc-hero-copy\"><span class=\"hc-eyebrow\">HAN CHANG \u00b7 Rubber injection molding equipment<\/span><\/p>\n<h1>Rubber Injection Molding Machine for Seals and Gaskets<\/h1>\n<div class=\"hc-product-lead\">\n<p>Han Chang&#8217;s vertical rubber injection molding machine makes O-rings, oil seals and gaskets from NBR, EPDM, FKM and other rubber compounds. A screw preplasticizes manually supplied rubber strip; an overhead hydraulic plunger injects it into the closed mold. The rubber cures before the mold opens for manual part removal.<\/p>\n<\/div>\n<div class=\"hc-actions\"><a class=\"hc-btn\" href=\"https:\/\/hanchang.com.tw\/en\/contact-us\/\">Request a quotation<\/a><a class=\"hc-btn hc-btn-secondary\" href=\"#hcproduct-specs\">Specifications and machine selection<\/a><\/div>\n<\/div>\n<div class=\"hc-product-static-machine-image\">\n<figure class=\"hc-product-machine-figure\"><img decoding=\"async\" width=\"2048\" height=\"2048\" class=\"wp-image-4620\" data-attachment-id=\"4620\" src=\"https:\/\/hanchang.com.tw\/wp-content\/uploads\/2026\/03\/precision-computer-rubber-molding-machine.jpg\" alt=\"Rubber Injection Molding Machine for Seals and Gaskets\" loading=\"eager\" fetchpriority=\"high\" srcset=\"https:\/\/hanchang.com.tw\/wp-content\/uploads\/2026\/03\/precision-computer-rubber-molding-machine.jpg 2048w, https:\/\/hanchang.com.tw\/wp-content\/uploads\/2026\/03\/precision-computer-rubber-molding-machine-200x200.jpg 200w, https:\/\/hanchang.com.tw\/wp-content\/uploads\/2026\/03\/precision-computer-rubber-molding-machine-1030x1030.jpg 1030w, https:\/\/hanchang.com.tw\/wp-content\/uploads\/2026\/03\/precision-computer-rubber-molding-machine-80x80.jpg 80w, https:\/\/hanchang.com.tw\/wp-content\/uploads\/2026\/03\/precision-computer-rubber-molding-machine-768x768.jpg 768w, https:\/\/hanchang.com.tw\/wp-content\/uploads\/2026\/03\/precision-computer-rubber-molding-machine-1536x1536.jpg 1536w, https:\/\/hanchang.com.tw\/wp-content\/uploads\/2026\/03\/precision-computer-rubber-molding-machine-36x36.jpg 36w, https:\/\/hanchang.com.tw\/wp-content\/uploads\/2026\/03\/precision-computer-rubber-molding-machine-180x180.jpg 180w, https:\/\/hanchang.com.tw\/wp-content\/uploads\/2026\/03\/precision-computer-rubber-molding-machine-1500x1500.jpg 1500w, https:\/\/hanchang.com.tw\/wp-content\/uploads\/2026\/03\/precision-computer-rubber-molding-machine-705x705.jpg 705w\" sizes=\"(max-width: 2048px) 100vw, 2048px\" \/><figcaption>Rubber Injection Molding Machine for Seals and Gaskets<\/figcaption><\/figure>\n<\/div>\n<\/section>\n<div class=\"hc-stat-band\">\n<div class=\"hc-stat\"><strong>Injection system<\/strong><span>Strip feed, screw preplasticizing and overhead hydraulic plunger<\/span><\/div>\n<div class=\"hc-stat\"><strong>Staged control<\/strong><span>Three pressure and four flow stages for injection and the hydraulic cycle<\/span><\/div>\n<div class=\"hc-stat\"><strong>Rubber applications<\/strong><span>NBR, EPDM, FKM, natural and synthetic rubber<\/span><\/div>\n<div class=\"hc-stat\"><strong>Typical components<\/strong><span>O-rings, oil seals, gaskets, dust boots and damping parts<\/span><\/div>\n<\/div>\n<nav aria-label=\"On this product page\" class=\"hc-page-nav\"><a href=\"#hcproduct-benefits\">Machine advantages<\/a><a href=\"#hcproduct-process\">Rubber injection and curing process<\/a><a href=\"#hcproduct-fit\">Materials and rubber part applications<\/a><a href=\"#hcproduct-specs\">Specifications and machine selection<\/a><a href=\"#hcproduct-faq\">Buyer questions<\/a><a href=\"#hcproduct-rfq\">Request a quotation<\/a><\/nav>\n<section class=\"hc-section hc-product-machine-functions-block\" id=\"hcproduct-benefits\">\n<div class=\"hc-section-heading\">\n<h2>Machine advantages<\/h2>\n<\/div>\n<p>Three pressure stages and four flow stages are available for both injection and the overall hydraulic cycle, alongside mold-opening\/closing venting. This gives the production team practical ways to adjust filling and machine movements. Compare the available models by shot volume, clamping force and mold space to select equipment for your tooling and production requirements.<\/p>\n<div class=\"hc-benefits\">\n<article class=\"hc-benefit\"><span class=\"hc-benefit-index\">01<\/span><\/p>\n<div>\n<h3>Prepare the strip, then fill the closed mold<\/h3>\n<p>Screw feeding and preplasticizing prepare the rubber before the overhead hydraulic plunger delivers it into the closed mold. The injection unit supplies compound to the cavities for products such as O-rings and gaskets, keeping material preparation and injection filling as distinct machine functions.<\/p>\n<\/div>\n<\/article>\n<article class=\"hc-benefit\"><span class=\"hc-benefit-index\">02<\/span><\/p>\n<div>\n<h3>Adjust more than a single pressure setting<\/h3>\n<p>Both injection and the hydraulic cycle have three pressure stages and four flow stages. Operators can adjust conditions to suit compound flow and tooling needs rather than use one pressure and flow setting throughout each action. The staged controls provide practical adjustment points during mold trials.<\/p>\n<\/div>\n<\/article>\n<article class=\"hc-benefit\"><span class=\"hc-benefit-index\">03<\/span><\/p>\n<div>\n<h3>Venting through mold opening and closing<\/h3>\n<p>The press includes mold-opening\/closing venting to help release gas from the mold. Used alongside the mold&#8217;s vent paths and suitable compound curing conditions, it provides a way to address trapped gas as part of the molding process.<\/p>\n<\/div>\n<\/article>\n<article class=\"hc-benefit\"><span class=\"hc-benefit-index\">04<\/span><\/p>\n<div>\n<h3>Choose capacity around the complete mold<\/h3>\n<p>The model range offers different shot volumes, clamping forces, platen sizes and opening strokes. Match the rubber needed for the complete shot with mold mounting and part-removal space, rather than choosing a machine from part size or tonnage alone.<\/p>\n<\/div>\n<\/article>\n<\/div>\n<\/section>\n<section class=\"hc-section\" id=\"hcproduct-process\">\n<div class=\"hc-section-heading\">\n<h2>Rubber injection and curing process<\/h2>\n<\/div>\n<div class=\"hc-workflow-grid\">\n<article class=\"hc-workflow-card\">\n<h3>Feed strip and preplasticize<\/h3>\n<p>The operator supplies rubber strip. The screw conveys and preplasticizes the compound in preparation for injection.<\/p>\n<\/article>\n<article class=\"hc-workflow-card\">\n<h3>Inject into the closed mold<\/h3>\n<p>With the mold closed, the overhead hydraulic plunger injects the prepared compound into the mold cavities.<\/p>\n<\/article>\n<article class=\"hc-workflow-card\">\n<h3>Cure the rubber in the mold<\/h3>\n<p>The rubber is heated and vulcanized in the mold to form the part. Curing conditions depend on the compound and product requirements.<\/p>\n<\/article>\n<article class=\"hc-workflow-card\">\n<h3>Open and remove the parts<\/h3>\n<p>After curing, the mold opens. The operator removes the molded rubber parts for inspection and subsequent production operations.<\/p>\n<\/article>\n<\/div>\n<\/section>\n<section class=\"hc-section hc-product-selection-guide-block\" id=\"hcproduct-fit\">\n<div class=\"hc-section-heading\">\n<h2>Materials and rubber part applications<\/h2>\n<\/div>\n<div class=\"hc-selection-grid\">\n<div class=\"hc-selection-panel\">\n<h3>O-ring and oil seal production<\/h3>\n<p>For manufacturers purchasing equipment to mold rubber seals, this press serves applications such as O-rings and oil seals. Sealing surfaces, parting lines and cavity filling matter; size the injection unit for all cavities and runners, not just the weight of one seal.<\/p>\n<\/div>\n<div class=\"hc-selection-panel\">\n<h3>Gaskets and industrial sealing components<\/h3>\n<p>Molded rubber gaskets use tooling to form the required profile and thickness. NBR, EPDM and FKM are among the material applications; the actual compound formulation determines the flow and curing conditions needed for the job.<\/p>\n<\/div>\n<div class=\"hc-selection-panel\">\n<h3>Dust boots and damping parts<\/h3>\n<p>The machine also molds dust boots and rubber damping components. For deeper profiles or parts with varying wall thickness, match the shot capacity with mold-opening space and access for part removal so the tooling suits shop-floor handling.<\/p>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"hc-section hc-product-model-overview-block\" id=\"hcproduct-specs\">\n<div class=\"hc-section-heading\">\n<h2>Specifications and machine selection<\/h2>\n<\/div>\n<p>Start your model comparison with maximum shot volume, clamping force, platen dimensions and opening stroke. The detailed specifications also cover the screw, drive, heating and machine dimensions. Model numbers identify the equipment; they are not clamping tonnages. Shot capacity in C.C. is a volume, not a weight in grams.<\/p>\n<div class=\"hc-spec-grid\">\n<details class=\"hc-spec-item\">\n<summary>Spec\/Type HCR-500<\/summary>\n<table>\n<tbody>\n<tr>\n<th>Clamping force (Ton)<\/th>\n<th>150<\/th>\n<\/tr>\n<tr>\n<td>Plate size (m\/m)<\/td>\n<td>360&#215;460<\/td>\n<\/tr>\n<tr>\n<td>Cylinder diameter (m\/m)<\/td>\n<td>300\/315<\/td>\n<\/tr>\n<tr>\n<td>Stroke (m\/m)<\/td>\n<td>410<\/td>\n<\/tr>\n<tr>\n<td>Motor (HP)<\/td>\n<td>10<\/td>\n<\/tr>\n<tr>\n<td>Heater capacitor (Kw)<\/td>\n<td>7.7<\/td>\n<\/tr>\n<tr>\n<td>Max shot volum (C.C)<\/td>\n<td>500\/1000<\/td>\n<\/tr>\n<tr>\n<td>Screw (m\/m)<\/td>\n<td>45<\/td>\n<\/tr>\n<tr>\n<td>Screw speed (RPM)<\/td>\n<td>0-120<\/td>\n<\/tr>\n<tr>\n<td>Material size(Txw) (m\/m)<\/td>\n<td>10&#215;46<\/td>\n<\/tr>\n<tr>\n<td>Kerosene pump (HP)<\/td>\n<td>1\/2<\/td>\n<\/tr>\n<tr>\n<td>Oil reservoir capacity (gallon)<\/td>\n<td>100<\/td>\n<\/tr>\n<tr>\n<td>Machine size LXWXH (m\/m)<\/td>\n<td>2430x1990x3330<\/td>\n<\/tr>\n<tr>\n<td>Net weight approx (kg)<\/td>\n<td>5500<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/details>\n<details class=\"hc-spec-item\">\n<summary>Spec\/Type HCR-1000<\/summary>\n<table>\n<tbody>\n<tr>\n<th>Clamping force (Ton)<\/th>\n<th>200<\/th>\n<\/tr>\n<tr>\n<td>Plate size (m\/m)<\/td>\n<td>520&#215;520<\/td>\n<\/tr>\n<tr>\n<td>Cylinder diameter (m\/m)<\/td>\n<td>368<\/td>\n<\/tr>\n<tr>\n<td>Stroke (m\/m)<\/td>\n<td>500<\/td>\n<\/tr>\n<tr>\n<td>Motor (HP)<\/td>\n<td>15<\/td>\n<\/tr>\n<tr>\n<td>Heater capacitor (Kw)<\/td>\n<td>13<\/td>\n<\/tr>\n<tr>\n<td>Max shot volum (C.C)<\/td>\n<td>1000\/1500<\/td>\n<\/tr>\n<tr>\n<td>Screw (m\/m)<\/td>\n<td>45<\/td>\n<\/tr>\n<tr>\n<td>Screw speed (RPM)<\/td>\n<td>0-120<\/td>\n<\/tr>\n<tr>\n<td>Material size(Txw) (m\/m)<\/td>\n<td>10&#215;46<\/td>\n<\/tr>\n<tr>\n<td>Kerosene pump (HP)<\/td>\n<td>1\/2<\/td>\n<\/tr>\n<tr>\n<td>Oil reservoir capacity (gallon)<\/td>\n<td>150<\/td>\n<\/tr>\n<tr>\n<td>Machine size LXWXH (m\/m)<\/td>\n<td>2790x2080x3700<\/td>\n<\/tr>\n<tr>\n<td>Net weight approx (kg)<\/td>\n<td>6800<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/details>\n<details class=\"hc-spec-item\">\n<summary>Spec\/Type HCR-1500<\/summary>\n<table>\n<tbody>\n<tr>\n<th>Clamping force (Ton)<\/th>\n<th>200<\/th>\n<\/tr>\n<tr>\n<td>Plate size (m\/m)<\/td>\n<td>520&#215;520<\/p>\n<p>520&#215;580<\/td>\n<\/tr>\n<tr>\n<td>Cylinder diameter (m\/m)<\/td>\n<td>368<\/td>\n<\/tr>\n<tr>\n<td>Stroke (m\/m)<\/td>\n<td>500<\/td>\n<\/tr>\n<tr>\n<td>Motor (HP)<\/td>\n<td>15<\/td>\n<\/tr>\n<tr>\n<td>Heater capacitor (Kw)<\/td>\n<td>13<\/td>\n<\/tr>\n<tr>\n<td>Max shot volum (C.C)<\/td>\n<td>1500\/2000<\/td>\n<\/tr>\n<tr>\n<td>Screw (m\/m)<\/td>\n<td>45<\/td>\n<\/tr>\n<tr>\n<td>Screw speed (RPM)<\/td>\n<td>0-120<\/td>\n<\/tr>\n<tr>\n<td>Material size(Txw) (m\/m)<\/td>\n<td>10&#215;46<\/td>\n<\/tr>\n<tr>\n<td>Kerosene pump (HP)<\/td>\n<td>1\/2<\/td>\n<\/tr>\n<tr>\n<td>Oil reservoir capacity (gallon)<\/td>\n<td>150<\/td>\n<\/tr>\n<tr>\n<td>Machine size LXWXH (m\/m)<\/td>\n<td>2790x2080x3700<\/td>\n<\/tr>\n<tr>\n<td>Net weight approx (kg)<\/td>\n<td>7000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/details>\n<details class=\"hc-spec-item\">\n<summary>Spec\/Type HCR-2000<\/summary>\n<table>\n<tbody>\n<tr>\n<th>Clamping force (Ton)<\/th>\n<th>300<\/th>\n<\/tr>\n<tr>\n<td>Plate size (m\/m)<\/td>\n<td>570&#215;585<\/p>\n<p>620&#215;650<\/td>\n<\/tr>\n<tr>\n<td>Cylinder diameter (m\/m)<\/td>\n<td>450<\/td>\n<\/tr>\n<tr>\n<td>Stroke (m\/m)<\/td>\n<td>600<\/td>\n<\/tr>\n<tr>\n<td>Motor (HP)<\/td>\n<td>20<\/td>\n<\/tr>\n<tr>\n<td>Heater capacitor (Kw)<\/td>\n<td>16.5<\/td>\n<\/tr>\n<tr>\n<td>Max shot volum (C.C)<\/td>\n<td>2000\/2500<\/td>\n<\/tr>\n<tr>\n<td>Screw (m\/m)<\/td>\n<td>45<\/td>\n<\/tr>\n<tr>\n<td>Screw speed (RPM)<\/td>\n<td>0-120<\/td>\n<\/tr>\n<tr>\n<td>Material size(Txw) (m\/m)<\/td>\n<td>10&#215;46<\/td>\n<\/tr>\n<tr>\n<td>Kerosene pump (HP)<\/td>\n<td>1\/2<\/td>\n<\/tr>\n<tr>\n<td>Oil reservoir capacity (gallon)<\/td>\n<td>165<\/td>\n<\/tr>\n<tr>\n<td>Machine size LXWXH (m\/m)<\/td>\n<td>2860x2280x4050<\/td>\n<\/tr>\n<tr>\n<td>Net weight approx (kg)<\/td>\n<td>9000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/details>\n<details class=\"hc-spec-item\">\n<summary>Spec\/Type HCR-4000<\/summary>\n<table>\n<tbody>\n<tr>\n<th>Clamping force (Ton)<\/th>\n<th>500<\/th>\n<\/tr>\n<tr>\n<td>Plate size (m\/m)<\/td>\n<td>700&#215;720<\/td>\n<\/tr>\n<tr>\n<td>Cylinder diameter (m\/m)<\/td>\n<td>560<\/td>\n<\/tr>\n<tr>\n<td>Stroke (m\/m)<\/td>\n<td>700<\/td>\n<\/tr>\n<tr>\n<td>Motor (HP)<\/td>\n<td>25<\/td>\n<\/tr>\n<tr>\n<td>Heater capacitor (Kw)<\/td>\n<td>18.5<\/td>\n<\/tr>\n<tr>\n<td>Max shot volum (C.C)<\/td>\n<td>3000\/4000<\/td>\n<\/tr>\n<tr>\n<td>Screw (m\/m)<\/td>\n<td>50<\/td>\n<\/tr>\n<tr>\n<td>Screw speed (RPM)<\/td>\n<td>0-120<\/td>\n<\/tr>\n<tr>\n<td>Material size(Txw) (m\/m)<\/td>\n<td>10&#215;46<\/td>\n<\/tr>\n<tr>\n<td>Kerosene pump (HP)<\/td>\n<td>1\/2<\/td>\n<\/tr>\n<tr>\n<td>Oil reservoir capacity (gallon)<\/td>\n<td>200<\/td>\n<\/tr>\n<tr>\n<td>Machine size LXWXH (m\/m)<\/td>\n<td>2900x2350x4000<\/td>\n<\/tr>\n<tr>\n<td>Net weight approx (kg)<\/td>\n<td>13000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/details>\n<\/div>\n<div class=\"hc-purchase-note\">\n<p>You do not need to choose a model before contacting Han Chang. A part photo or drawing is a useful starting point. If tooling is already available, its overall dimensions and cavity count make the machine discussion more specific.<\/p>\n<\/div>\n<\/section>\n<section class=\"hc-section hc-product-service-block\">\n<section class=\"hc-product-section hc-service-section\">\n<div class=\"hc-section-heading\">\n<h2>Tooling and equipment quotations<\/h2>\n<\/div>\n<div class=\"hc-card-grid\">\n<div class=\"hc-product-card\"><strong>Plan an addition to your existing molding shop<\/strong><\/p>\n<p>An existing mold drawing and the current press specifications help define how a new machine will fit the job. Compare platen space, mounting arrangements, opening stroke and the injection interface to identify tooling adaptation needs before choosing equipment by tonnage alone.<\/p>\n<\/div>\n<div class=\"hc-product-card\"><strong>Compare machine quotations on equal terms<\/strong><\/p>\n<p>Use the same product and tooling requirements when comparing suppliers. Identify the model, injection unit, electrical requirements and scope of supply, with tooling and ancillary needs listed separately. A clearly defined equipment package makes the price comparison useful for purchasing and production planning.<\/p>\n<\/div>\n<\/div>\n<\/section>\n<\/section>\n<section class=\"hc-section hc-product-faq-block\" id=\"hcproduct-faq\">\n<section class=\"hc-product-section hc-faq-section hc-product-faq\">\n<div class=\"hc-section-heading\">\n<h2>Buyer questions<\/h2>\n<\/div>\n<details>\n<summary>Which rubber products and compounds is this machine used for?<\/summary>\n<p>Han Chang&#8217;s rubber injection molding machine serves applications including O-rings, oil seals, gaskets, dust boots, damping parts and industrial sealing components. Material applications include NBR, EPDM, FKM, natural rubber and synthetic rubber. The actual formulation, hardness, flow behavior and curing characteristics determine the molding conditions for a particular job.<\/p>\n<\/details>\n<details>\n<summary>Does the screw inject the rubber, or does a plunger do the injection?<\/summary>\n<p>The screw conveys and preplasticizes the manually supplied rubber strip. An overhead hydraulic plunger then injects the compound into the already closed mold. The rubber cures in the mold, which opens for manual part removal. This differs from compression molding, where a charge is placed directly into an open mold cavity before closing and pressing.<\/p>\n<\/details>\n<details>\n<summary>What do the three pressure stages and four flow stages control?<\/summary>\n<p>Both the injection action and the overall hydraulic cycle have three pressure stages and four flow stages. Operators can adapt pressure and flow to compound behavior, part geometry and runner layout, giving filling conditions and machine movements settings suited to the production task. Working conditions are established through mold trials.<\/p>\n<\/details>\n<details>\n<summary>Does the vertical rubber injection press have a venting function?<\/summary>\n<p>Yes. The machine has mold-opening\/closing venting to help gas escape from the mold. Its effectiveness also depends on the mold&#8217;s vent paths, the compound and the molding conditions. When investigating air marks or incomplete filling, consider these factors together instead of simply increasing injection pressure.<\/p>\n<\/details>\n<details>\n<summary>How should I compare shot capacity in C.C. with a specification in grams?<\/summary>\n<p>C.C. means cubic centimeters and describes volume. Grams describe mass, so conversion requires the density of the actual rubber compound. The required shot includes the material for every cavity and the runners. Maximum shot volume is therefore not the weight of a single part or a direct statement of finished-part weight per cycle.<\/p>\n<\/details>\n<details>\n<summary>How do I select the right model and clamping force?<\/summary>\n<p>Match the complete shot requirement, clamping force, platen dimensions, opening stroke and mold mounting conditions. Clamping demand depends on projected cavity area, cavity pressure and tooling design, not part dimensions alone. Check the specifications for the proposed configuration: a model number is an identifier, not a tonnage rating, and more tonnage alone does not establish a better fit.<\/p>\n<\/details>\n<details>\n<summary>How many rubber parts can the machine produce per shift?<\/summary>\n<p>Output depends on the working cavity count and the complete production cycle, including strip supply, injection, curing, mold opening, manual removal and shop-floor handling. Compound formulation and part thickness affect curing time. Use relevant cycle records or mold-trial data to discuss a production target; maximum shot capacity alone cannot establish parts per shift.<\/p>\n<\/details>\n<details>\n<summary>What information is needed for a rubber injection moulding machine quotation?<\/summary>\n<p>Start with a part photo or drawing, the rubber compound and your intended output. Add mold dimensions and cavity count if tooling already exists; you do not need a complete tooling file to begin the conversation. Price should correspond to the selected model, injection unit and agreed scope of supply, with electrical requirements, tooling and ancillary needs clearly identified so quotations address the same production task.<\/p>\n<\/details>\n<\/section>\n<\/section>\n<section class=\"hc-section\" id=\"hcproduct-related-equipment\">\n<div class=\"hc-section-heading\">\n<h2>Related machines and selection<\/h2>\n<\/div>\n<div class=\"hc-related-equipment-grid\">\n<article class=\"hc-related-equipment-card\">\n<h3>Solid Silicone Injection Molding Machine<\/h3>\n<p>Explore equipment for solid silicone keypads, sleeves and waterproof parts, with material and model information.<\/p>\n<p><a class=\"hc-related-link\" href=\"https:\/\/hanchang.com.tw\/en\/portfolio-item\/multi-functional-computerized-silicone-injection-molding-machine\/\">Solid Silicone Injection Molding Machine \u2192<\/a><\/p>\n<\/article>\n<article class=\"hc-related-equipment-card\">\n<h3>Rubber and solid silicone injection machine selection<\/h3>\n<p>Choose the equipment page for rubber or solid silicone parts.<\/p>\n<p><a class=\"hc-related-link\" href=\"https:\/\/hanchang.com.tw\/en\/portfolio_entries\/multi-functional-computerized-rubber-silicon-injection-molding-machine\/\">Rubber and solid silicone injection machine selection \u2192<\/a><\/p>\n<\/article>\n<\/div>\n<\/section>\n<section class=\"hc-product-section hc-rfq-section\" id=\"hcproduct-rfq\">\n<div class=\"hc-section-heading\">\n<h2>Find the right rubber injection press for your parts<\/h2>\n<\/div>\n<p>Send Han Chang a product photo, drawing or existing machine requirement. Tell us what you plan to mold and your production target to start a practical equipment-selection and quotation discussion.<\/p>\n<p><a class=\"hc-btn hc-rfq-link\" href=\"https:\/\/hanchang.com.tw\/en\/contact-us\/\">Request a quotation<\/a><\/p>\n<\/section>\n<\/div>\n<\/div><\/section>\n","protected":false},"excerpt":{"rendered":"<p>A vertical rubber injection press with screw feeding and preplasticizing, an overhead hydraulic injection plunger, staged pressure and flow control, and mold-opening\/closing venting.<\/p>\n","protected":false},"author":5,"featured_media":4620,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"tags":[],"portfolio_entries":[84],"class_list":["post-3560","portfolio","type-portfolio","status-publish","has-post-thumbnail","hentry","portfolio_entries-multi-functional-computerized-rubber-silicon-injection-molding-machine"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.0 (Yoast SEO v28.3) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Rubber Injection Molding Machine for Seals | Han Chang<\/title>\n<meta name=\"description\" content=\"Han Chang vertical rubber injection press for O-rings, oil seals and gaskets. Explore screw preplasticizing, plunger injection, specifications and machine quotes.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/hanchang.com.tw\/en\/portfolio-item\/multi-functional-computerized-rubber-injection-molding-machine\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Rubber Injection Molding Machine for Seals | Han Chang\" \/>\n<meta property=\"og:description\" content=\"Han Chang vertical rubber injection press for O-rings, oil seals and gaskets. 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