{"id":3556,"date":"2016-06-27T10:27:24","date_gmt":"2016-06-27T02:27:24","guid":{"rendered":"http:\/\/hanchang.designworks.tw\/?post_type=portfolio&#038;p=3556"},"modified":"2026-09-29T08:10:33","modified_gmt":"2026-09-29T00:10:33","slug":"vacuum-type-compression-molding-machine","status":"publish","type":"portfolio","link":"https:\/\/hanchang.com.tw\/en\/portfolio-item\/vacuum-type-compression-molding-machine\/","title":{"rendered":"Double-Station Vacuum Compression Molding Machine"},"content":{"rendered":"<section  class='av_textblock_section av-2xw8ec-fa935d4d043d67754ea4067e82f6ed34 '   itemscope=\"itemscope\" itemtype=\"https:\/\/schema.org\/CreativeWork\" ><div class='avia_textblock hc-product-layout-block'  itemprop=\"text\" ><style>#top.postid-3556 #main main.content {width:100%;border:0;padding-right:0;float:none;}\n#top.postid-3556 .hc-product-layout 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{padding:16px;border:0;}}\n@media(max-width:767px){#top.postid-3556 .hc-stat-band {grid-template-columns:1fr;}#top.postid-3556 .hc-stat,#top.postid-3556 .hc-stat:first-child {display:block;padding:16px 0;}#top.postid-3556 .hc-stat span {max-width:none;width:100%;}}<\/style>\n<p><script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What rubber and silicone products can this double-station vacuum press mold?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Han Chang double-station vacuum compression presses can mold O-rings, equipment gaskets, cable grommets, protective caps, machine feet, bumpers, silicone keypads, enclosure seals, suction cups and flexible diaphragms, as well as silicone coasters, heat-resistant mats and baking molds. Suitable compounds and tooling define the product range. Vacuum evacuation supports mold venting, and independent stations provide flexible production scheduling.\"}}, {\"@type\": \"Question\", \"name\": \"What does vacuum add to a rubber compression molding press?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The vacuum hood provides evacuation alongside mold venting. On this machine, compound is loaded and the mold is closed first. The hood then closes, and evacuation begins together with pressing and venting, drawing away released gases while heat and hydraulic force support molding and curing.\"}}, {\"@type\": \"Question\", \"name\": \"How is this different from rubber injection molding?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"This is a compression molding machine: compound is placed in an open mold before the mold and vacuum hood close. Rubber injection molding feeds compound into an already closed mold. The feeding method and tooling requirements are different.\"}}, {\"@type\": \"Question\", \"name\": \"Can the left or right station run on its own?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. The left and right stations have their own independent control systems. Either station can be switched on for production without requiring both to run together.\"}}, {\"@type\": \"Question\", \"name\": \"Does a vacuum hood replace mold vents?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. Mold vent paths allow gas to leave the cavities, and vacuum evacuation carries the released gas away. Vent grooves, parting surfaces and compound flow still matter because gas needs a clear route out of the mold.\"}}, {\"@type\": \"Question\", \"name\": \"How do I choose tonnage for O-rings or oil seals?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Select tonnage using cavity count, total projected area, the compound's required molding pressure and mold construction\u2014not just the dimensions of one part. Then match platen size, daylight and stroke to the tool. Han Chang can discuss a suitable model from your part and mold information.\"}}, {\"@type\": \"Question\", \"name\": \"Can I use an existing rubber compression mold?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Start with its dimensions and construction details. The mold footprint must suit the platens, while mold thickness and part-removal space must fit the available daylight and stroke. Space inside the vacuum hood, vent paths and heating requirements also determine the fit.\"}}, {\"@type\": \"Question\", \"name\": \"Should I choose a single- or double-station vacuum press?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Both machines process rubber and silicone with the same vacuum compression molding motions. The difference is station count. The double-station machine has independent left and right controls, so either or both can be used. Choose a single-station press when one molding station suits the production plan; material alone does not decide the layout.\"}}, {\"@type\": \"Question\", \"name\": \"What information is needed for a machine quotation?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Send a product photo or drawing, the rubber or silicone compound and your planned production requirements. If tooling already exists, add the mold dimensions, thickness and cavity count. Han Chang can then discuss tonnage, platen size and heating requirements for a corresponding quotation; you do not need to specify the complete machine first.\"}}]}<\/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 Double-Station Vacuum Compression Molding Machine<\/span><\/p>\n<h1>Double-Station Vacuum Compression Molding Machine<\/h1>\n<div class=\"hc-product-lead\">\n<p>Han Chang manufactures double-station vacuum compression molding machines for rubber and silicone seals, gaskets and keypads. Each station operates independently; evacuation begins with pressing and venting after the mold and hood close.<\/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-4623\" data-attachment-id=\"4623\" src=\"https:\/\/hanchang.com.tw\/wp-content\/uploads\/2026\/03\/vacuum-hot-press-molding-equipment.jpg\" alt=\"Double-Station Vacuum Compression Molding Machine\" loading=\"eager\" fetchpriority=\"high\" srcset=\"https:\/\/hanchang.com.tw\/wp-content\/uploads\/2026\/03\/vacuum-hot-press-molding-equipment.jpg 2048w, https:\/\/hanchang.com.tw\/wp-content\/uploads\/2026\/03\/vacuum-hot-press-molding-equipment-200x200.jpg 200w, https:\/\/hanchang.com.tw\/wp-content\/uploads\/2026\/03\/vacuum-hot-press-molding-equipment-1030x1030.jpg 1030w, https:\/\/hanchang.com.tw\/wp-content\/uploads\/2026\/03\/vacuum-hot-press-molding-equipment-80x80.jpg 80w, https:\/\/hanchang.com.tw\/wp-content\/uploads\/2026\/03\/vacuum-hot-press-molding-equipment-768x768.jpg 768w, https:\/\/hanchang.com.tw\/wp-content\/uploads\/2026\/03\/vacuum-hot-press-molding-equipment-1536x1536.jpg 1536w, https:\/\/hanchang.com.tw\/wp-content\/uploads\/2026\/03\/vacuum-hot-press-molding-equipment-36x36.jpg 36w, https:\/\/hanchang.com.tw\/wp-content\/uploads\/2026\/03\/vacuum-hot-press-molding-equipment-180x180.jpg 180w, https:\/\/hanchang.com.tw\/wp-content\/uploads\/2026\/03\/vacuum-hot-press-molding-equipment-1500x1500.jpg 1500w, https:\/\/hanchang.com.tw\/wp-content\/uploads\/2026\/03\/vacuum-hot-press-molding-equipment-705x705.jpg 705w\" sizes=\"(max-width: 2048px) 100vw, 2048px\" \/><figcaption>Double-Station Vacuum Compression Molding Machine<\/figcaption><\/figure>\n<\/div>\n<\/section>\n<div class=\"hc-stat-band\">\n<div class=\"hc-stat\"><strong>Molding process<\/strong><span>Rubber or silicone compound is placed in the mold, then compression molded and cured with hydraulic force and heated platens.<\/span><\/div>\n<div class=\"hc-stat\"><strong>Vacuum-assisted venting<\/strong><span>After the mold and hood close, vacuum evacuation starts together with pressing and venting to draw away released gases.<\/span><\/div>\n<div class=\"hc-stat\"><strong>Independent stations<\/strong><span>The left and right stations have separate control systems. Either station can operate on its own.<\/span><\/div>\n<div class=\"hc-stat\"><strong>Typical applications<\/strong><span>Rubber and silicone seals, gaskets, keypads and protective covers, matched to the compound and tooling.<\/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\">Vacuum compression molding and degassing<\/a><a href=\"#hcproduct-fit\">Rubber and silicone 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<div class=\"hc-benefits\">\n<article class=\"hc-benefit\"><span class=\"hc-benefit-index\">01<\/span><\/p>\n<div>\n<h3>Draw vented gases away from the mold<\/h3>\n<p>Vacuum evacuation works with mold degassing during pressing to carry released gases away from the molding area. This helps reduce the effect of trapped gas on sealing surfaces and part appearance.<\/p>\n<\/div>\n<\/article>\n<article class=\"hc-benefit\"><span class=\"hc-benefit-index\">02<\/span><\/p>\n<div>\n<h3>Run one station when that is all you need<\/h3>\n<p>Independent left and right controls let you use either station on its own. Production does not depend on having both stations running together.<\/p>\n<\/div>\n<\/article>\n<article class=\"hc-benefit\"><span class=\"hc-benefit-index\">03<\/span><\/p>\n<div>\n<h3>Heat and hydraulic force for both compounds<\/h3>\n<p>Heated platens supply heat and hydraulics apply molding force. Matching temperature, pressure and curing time to the rubber or silicone compound lets the same machine type serve different molded-product requirements.<\/p>\n<\/div>\n<\/article>\n<article class=\"hc-benefit\"><span class=\"hc-benefit-index\">04<\/span><\/p>\n<div>\n<h3>Match press size to the complete mold<\/h3>\n<p>The 80\u2013350 ton model range offers different molding forces and platen specifications. Select for the mold footprint and cavity layout, rather than the size of a single seal 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>Vacuum compression molding and degassing<\/h2>\n<\/div>\n<div class=\"hc-workflow-grid\">\n<article class=\"hc-workflow-card\">\n<h3>Open the mold and load compound<\/h3>\n<p>Open the mold and place the rubber or silicone compound inside.<\/p>\n<\/article>\n<article class=\"hc-workflow-card\">\n<h3>Close the mold, then the vacuum hood<\/h3>\n<p>After loading, close the mold first, followed by the vacuum hood, ready for evacuation and pressing.<\/p>\n<\/article>\n<article class=\"hc-workflow-card\">\n<h3>Evacuate while pressing and venting<\/h3>\n<p>Vacuum evacuation starts together with pressing and venting. The vacuum draws away released gases while heated platens provide heat for compression molding and curing.<\/p>\n<\/article>\n<article class=\"hc-workflow-card\">\n<h3>Open and remove the part<\/h3>\n<p>Once molding is complete, open the mold and vacuum hood, then remove the finished part.<\/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>Rubber and silicone applications<\/h2>\n<\/div>\n<p style=\"letter-spacing:normal;font-size:16px;line-height:1.6\">Han Chang double-station vacuum compression presses mold rubber and solid-silicone products for machinery, electronics and consumer goods. Vacuum evacuation supports mold venting, while independently controlled stations provide flexible production scheduling.<\/p>\n<div class=\"hc-selection-grid\">\n<div class=\"hc-selection-panel\">\n<h3>O-rings, flange gaskets and equipment seals<\/h3>\n<p style=\"letter-spacing:normal;font-size:16px;line-height:1.6\">Molded products include O-rings, flat sealing washers, flange gaskets, pump-cover seals and valve sealing pads. NBR is a common starting point for oil-resistant seals; EPDM is often considered for outdoor sealing applications.<\/p>\n<p style=\"letter-spacing:normal;font-size:16px;line-height:1.6\">Vacuum evacuation works with mold vents to remove gases around sealing faces and ring sections during compression molding.<\/p>\n<\/div>\n<div class=\"hc-selection-panel\">\n<h3>Cable grommets, wiring boots and protective caps<\/h3>\n<p style=\"letter-spacing:normal;font-size:16px;line-height:1.6\">Examples include panel grommets, wiring-harness boots, connector dust caps, rubber plugs and mechanism covers. These parts protect cables at panel openings and shield exposed connections or moving assemblies.<\/p>\n<p style=\"letter-spacing:normal;font-size:16px;line-height:1.6\">Vacuum assistance helps vent holes, grooves and thin edges. Mold splits and release paths are matched to undercuts or folded shapes.<\/p>\n<\/div>\n<div class=\"hc-selection-panel\">\n<h3>Machine feet, rubber bumpers and vibration pads<\/h3>\n<p style=\"letter-spacing:normal;font-size:16px;line-height:1.6\">Produce equipment feet, appliance anti-slip pads, impact bumpers, cushioning washers and resilient pads. Natural-rubber and SBR compounds are common choices where elasticity and wear performance guide material selection.<\/p>\n<p style=\"letter-spacing:normal;font-size:16px;line-height:1.6\">Heated platens and pressure holding cure the compound. Independent stations let production be scheduled around the molds and orders in use.<\/p>\n<\/div>\n<div class=\"hc-selection-panel\">\n<h3>Silicone keypads and electronic enclosure seals<\/h3>\n<p style=\"letter-spacing:normal;font-size:16px;line-height:1.6\">Solid-silicone products include remote-control keypads, industrial control-panel keymats, button dust membranes, connector seals and enclosure gaskets. Compound hardness helps define key feel, elastic return and sealing behavior.<\/p>\n<p style=\"letter-spacing:normal;font-size:16px;line-height:1.6\">Vacuum venting helps manage gas around thin keypad webs and sealing edges. Electrical contacts and printing belong to the wider keypad production process.<\/p>\n<\/div>\n<div class=\"hc-selection-panel\">\n<h3>Suction cups, flexible diaphragms and bellows<\/h3>\n<p style=\"letter-spacing:normal;font-size:16px;line-height:1.6\">Matched tooling can produce handling suction cups, pump or valve diaphragms, rubber bellows and silicone protective boots. Cup lips provide contact, diaphragms flex during operation, and bellows protect assemblies while allowing movement.<\/p>\n<p style=\"letter-spacing:normal;font-size:16px;line-height:1.6\">Vacuum evacuation supports venting around thin lips and changing wall sections; mold cores and parting lines provide the release path.<\/p>\n<\/div>\n<div class=\"hc-selection-panel\">\n<h3>Silicone coasters, baking molds and wearable parts<\/h3>\n<p style=\"letter-spacing:normal;font-size:16px;line-height:1.6\">Consumer-product examples include silicone coasters, heat-resistant mats, baking molds, soft grips and wristbands. Tool surfaces create the required contours and textures; compound, color and hardness determine the intended feel and use.<\/p>\n<p style=\"letter-spacing:normal;font-size:16px;line-height:1.6\">Independent stations support tool and batch scheduling, while vacuum assists surface venting. Food-contact products require suitable compounds and finished-part compliance testing.<\/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>Seven models, from HCAV-80D to HCAV-350D, cover the 80\u2013350 ton range. Compare platen dimensions, stroke, maximum daylight, heater capacity and overall machine dimensions in the individual specification tables.<\/p>\n<div class=\"hc-spec-grid\">\n<details class=\"hc-spec-item\">\n<summary>Spec \/ Type HCAV-80D<\/summary>\n<table>\n<tbody>\n<tr>\n<th>Clamping force (Ton)<\/th>\n<th>80<\/th>\n<\/tr>\n<tr>\n<td>Plate size (m\/m)<\/td>\n<td>439&#215;419<\/td>\n<\/tr>\n<tr>\n<td>Cylinder diameter (m\/m)<\/td>\n<td>236<\/td>\n<\/tr>\n<tr>\n<td>Stroke (m\/m)<\/td>\n<td>320<\/td>\n<\/tr>\n<tr>\n<td>Daylight (m\/m)<\/td>\n<td>500<\/td>\n<\/tr>\n<tr>\n<td>Pump pressure (kg\/cm2)<\/td>\n<td>210<\/td>\n<\/tr>\n<tr>\n<td>Motor (HP)<\/td>\n<td>5&#215;2<\/td>\n<\/tr>\n<tr>\n<td>Heater capacity (Kw)<\/td>\n<td>7.6&#215;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>3140x1528x2185<\/td>\n<\/tr>\n<tr>\n<td>Net weight approx (kg)<\/td>\n<td>5400<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/details>\n<details class=\"hc-spec-item\">\n<summary>Spec \/ Type HCAV-100D<\/summary>\n<table>\n<tbody>\n<tr>\n<th>Clamping force (Ton)<\/th>\n<th>100<\/th>\n<\/tr>\n<tr>\n<td>Plate size (m\/m)<\/td>\n<td>355&#215;355<\/p>\n<p>439&#215;419<\/p>\n<p>555&#215;505<\/td>\n<\/tr>\n<tr>\n<td>Cylinder diameter (m\/m)<\/td>\n<td>265<\/td>\n<\/tr>\n<tr>\n<td>Stroke (m\/m)<\/td>\n<td>320<\/td>\n<\/tr>\n<tr>\n<td>Daylight (m\/m)<\/td>\n<td>500<\/td>\n<\/tr>\n<tr>\n<td>Pump pressure (kg\/cm2)<\/td>\n<td>210<\/td>\n<\/tr>\n<tr>\n<td>Motor (HP)<\/td>\n<td>5&#215;2<\/td>\n<\/tr>\n<tr>\n<td>Heater capacity (Kw)<\/td>\n<td>10.6&#215;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>3380x1793x2370<\/td>\n<\/tr>\n<tr>\n<td>Net weight approx (kg)<\/td>\n<td>7600<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/details>\n<details class=\"hc-spec-item\">\n<summary>Spec \/ Type HCAV-150D<\/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>439&#215;419<\/p>\n<p>555&#215;505<\/p>\n<p>614&#215;574<\/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>320<\/td>\n<\/tr>\n<tr>\n<td>Daylight (m\/m)<\/td>\n<td>500<\/td>\n<\/tr>\n<tr>\n<td>Pump pressure (kg\/cm2)<\/td>\n<td>210<\/td>\n<\/tr>\n<tr>\n<td>Motor (HP)<\/td>\n<td>7.5&#215;2<\/td>\n<\/tr>\n<tr>\n<td>Heater capacity (Kw)<\/td>\n<td>10.6&#215;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>3750x1880x2370<\/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 HCAV-200D<\/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>555&#215;505<\/p>\n<p>614&#215;574<\/p>\n<p>674&#215;674<\/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>320<\/td>\n<\/tr>\n<tr>\n<td>Daylight (m\/m)<\/td>\n<td>500<\/td>\n<\/tr>\n<tr>\n<td>Pump pressure (kg\/cm2)<\/td>\n<td>210<\/td>\n<\/tr>\n<tr>\n<td>Motor (HP)<\/td>\n<td>7.5&#215;2<\/td>\n<\/tr>\n<tr>\n<td>Heater capacity (Kw)<\/td>\n<td>16.6&#215;2<\/td>\n<\/tr>\n<tr>\n<td>Oil reservoir capacity (gallon)<\/td>\n<td>170<\/td>\n<\/tr>\n<tr>\n<td>Machine size LxWxH (m\/m)<\/td>\n<td>3750x1860x2760<\/td>\n<\/tr>\n<tr>\n<td>Net weight approx (kg)<\/td>\n<td>12000<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/details>\n<details class=\"hc-spec-item\">\n<summary>Spec \/ Type HCAV-250D<\/summary>\n<table>\n<tbody>\n<tr>\n<th>Clamping force (Ton)<\/th>\n<th>250<\/th>\n<\/tr>\n<tr>\n<td>Plate size (m\/m)<\/td>\n<td>614&#215;574<\/p>\n<p>674&#215;674<\/p>\n<p>785&#215;710<\/td>\n<\/tr>\n<tr>\n<td>Cylinder diameter (m\/m)<\/td>\n<td>400<\/td>\n<\/tr>\n<tr>\n<td>Stroke (m\/m)<\/td>\n<td>320<\/td>\n<\/tr>\n<tr>\n<td>Daylight (m\/m)<\/td>\n<td>500<\/td>\n<\/tr>\n<tr>\n<td>Pump pressure (kg\/cm2)<\/td>\n<td>210<\/td>\n<\/tr>\n<tr>\n<td>Motor (HP)<\/td>\n<td>7.5&#215;2<\/td>\n<\/tr>\n<tr>\n<td>Heater capacity (Kw)<\/td>\n<td>16.6&#215;2<\/td>\n<\/tr>\n<tr>\n<td>Oil reservoir capacity (gallon)<\/td>\n<td>170<\/td>\n<\/tr>\n<tr>\n<td>Machine size LxWxH (m\/m)<\/td>\n<td>3750x1860x2760<\/td>\n<\/tr>\n<tr>\n<td>Net weight approx (kg)<\/td>\n<td>12500<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/details>\n<details class=\"hc-spec-item\">\n<summary>Spec \/ Type HCAV-300D<\/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>614&#215;574<\/p>\n<p>630&#215;650<\/p>\n<p>674&#215;674<\/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>320<\/td>\n<\/tr>\n<tr>\n<td>Daylight (m\/m)<\/td>\n<td>500<\/td>\n<\/tr>\n<tr>\n<td>Pump pressure (kg\/cm2)<\/td>\n<td>210<\/td>\n<\/tr>\n<tr>\n<td>Motor (HP)<\/td>\n<td>7.5&#215;2<\/td>\n<\/tr>\n<tr>\n<td>Heater capacity (Kw)<\/td>\n<td>16.6&#215;2<\/td>\n<\/tr>\n<tr>\n<td>Oil reservoir capacity (gallon)<\/td>\n<td>170<\/td>\n<\/tr>\n<tr>\n<td>Machine size LxWxH (m\/m)<\/td>\n<td>3750x1965x2760<\/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<details class=\"hc-spec-item\">\n<summary>Spec \/ Type HCAV-350D<\/summary>\n<table>\n<tbody>\n<tr>\n<th>Clamping force (Ton)<\/th>\n<th>350<\/th>\n<\/tr>\n<tr>\n<td>Plate size (m\/m)<\/td>\n<td>700&#215;700<\/td>\n<\/tr>\n<tr>\n<td>Cylinder diameter (m\/m)<\/td>\n<td>460<\/td>\n<\/tr>\n<tr>\n<td>Stroke (m\/m)<\/td>\n<td>320<\/td>\n<\/tr>\n<tr>\n<td>Daylight (m\/m)<\/td>\n<td>500<\/td>\n<\/tr>\n<tr>\n<td>Pump pressure (kg\/cm2)<\/td>\n<td>210<\/td>\n<\/tr>\n<tr>\n<td>Motor (HP)<\/td>\n<td>10&#215;2<\/td>\n<\/tr>\n<tr>\n<td>Heater capacity (Kw)<\/td>\n<td>16.6&#215;2<\/td>\n<\/tr>\n<tr>\n<td>Oil reservoir capacity (gallon)<\/td>\n<td>170<\/td>\n<\/tr>\n<tr>\n<td>Machine size LxWxH (m\/m)<\/td>\n<td>3760x1965x2960<\/td>\n<\/tr>\n<tr>\n<td>Net weight approx (kg)<\/td>\n<td>14500<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<\/details>\n<\/div>\n<div class=\"hc-purchase-note\">\n<p>Match molding force and platen size first, then check mold thickness, opening clearance and room for part removal. If you do not know the required tonnage, start with your part drawing or existing mold dimensions and discuss model and heating requirements with Han Chang.<\/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>Select around your part or existing mold<\/strong><\/p>\n<p>Start with a product photo, drawing or existing mold details. Han Chang can discuss molding force, platen size and opening clearance around the mold footprint, thickness, cavity count and space needed to remove parts.<\/p>\n<\/div>\n<div class=\"hc-product-card\"><strong>Heating requirements and quotation<\/strong><\/p>\n<p>Discuss heater capacity in relation to compound curing conditions and mold size and thickness. A quotation tied to the selected model and configuration makes equipment comparisons more useful.<\/p>\n<\/div>\n<div class=\"hc-product-card\"><strong>Optional mold-tilting function<\/strong><\/p>\n<p>A mold-tilting function can be customized around the tooling and operator access required for loading and demolding. Send a mold drawing or photo to discuss the arrangement.<\/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>What rubber and silicone products can this double-station vacuum press mold?<\/summary>\n<p>Han Chang double-station vacuum compression presses can mold O-rings, equipment gaskets, cable grommets, protective caps, machine feet, bumpers, silicone keypads, enclosure seals, suction cups and flexible diaphragms, as well as silicone coasters, heat-resistant mats and baking molds. Suitable compounds and tooling define the product range. Vacuum evacuation supports mold venting, and independent stations provide flexible production scheduling.<\/p>\n<\/details>\n<details>\n<summary>What does vacuum add to a rubber compression molding press?<\/summary>\n<p>The vacuum hood provides evacuation alongside mold venting. On this machine, compound is loaded and the mold is closed first. The hood then closes, and evacuation begins together with pressing and venting, drawing away released gases while heat and hydraulic force support molding and curing.<\/p>\n<\/details>\n<details>\n<summary>How is this different from rubber injection molding?<\/summary>\n<p>This is a compression molding machine: compound is placed in an open mold before the mold and vacuum hood close. Rubber injection molding feeds compound into an already closed mold. The feeding method and tooling requirements are different.<\/p>\n<\/details>\n<details>\n<summary>Can the left or right station run on its own?<\/summary>\n<p>Yes. The left and right stations have their own independent control systems. Either station can be switched on for production without requiring both to run together.<\/p>\n<\/details>\n<details>\n<summary>Does a vacuum hood replace mold vents?<\/summary>\n<p>No. Mold vent paths allow gas to leave the cavities, and vacuum evacuation carries the released gas away. Vent grooves, parting surfaces and compound flow still matter because gas needs a clear route out of the mold.<\/p>\n<\/details>\n<details>\n<summary>How do I choose tonnage for O-rings or oil seals?<\/summary>\n<p>Select tonnage using cavity count, total projected area, the compound&#8217;s required molding pressure and mold construction\u2014not just the dimensions of one part. Then match platen size, daylight and stroke to the tool. Han Chang can discuss a suitable model from your part and mold information.<\/p>\n<\/details>\n<details>\n<summary>Can I use an existing rubber compression mold?<\/summary>\n<p>Start with its dimensions and construction details. The mold footprint must suit the platens, while mold thickness and part-removal space must fit the available daylight and stroke. Space inside the vacuum hood, vent paths and heating requirements also determine the fit.<\/p>\n<\/details>\n<details>\n<summary>Should I choose a single- or double-station vacuum press?<\/summary>\n<p>Both machines process rubber and silicone with the same vacuum compression molding motions. The difference is station count. The double-station machine has independent left and right controls, so either or both can be used. Choose a single-station press when one molding station suits the production plan; material alone does not decide the layout.<\/p>\n<\/details>\n<details>\n<summary>What information is needed for a machine quotation?<\/summary>\n<p>Send a product photo or drawing, the rubber or silicone compound and your planned production requirements. If tooling already exists, add the mold dimensions, thickness and cavity count. Han Chang can then discuss tonnage, platen size and heating requirements for a corresponding quotation; you do not need to specify the complete machine first.<\/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 hc-link-card\">\n<div class=\"hc-link-copy\"><span class=\"hc-link-kicker\">RELATED EQUIPMENT<\/span><\/p>\n<h3 id=\"hc-related-3556-0-title\">Single-Station Vacuum Compression Molding Machine<\/h3>\n<p>Vacuum compression molding for rubber and silicone in a single-station layout.<\/p>\n<\/div>\n<p class=\"hc-link-action-wrap\"><a class=\"hc-link-action\" href=\"https:\/\/hanchang.com.tw\/en\/portfolio-item\/vacuum-type-compression-molding-machine-2\/\" aria-labelledby=\"hc-related-3556-0-title hc-related-3556-0-action\"><span id=\"hc-related-3556-0-action\">View machine<\/span> <span aria-hidden=\"true\">\u2192<\/span><\/a><\/p>\n<\/article>\n<article class=\"hc-related-equipment-card hc-link-card\">\n<div class=\"hc-link-copy\"><span class=\"hc-link-kicker\">RELATED EQUIPMENT<\/span><\/p>\n<h3 id=\"hc-related-3556-3552-title\">Double-Station Sliding-Plate Compression Molding Machine<\/h3>\n<p>Sliding plates bring tooling into the handling area for loading, cleaning and part removal.<\/p>\n<\/div>\n<p class=\"hc-link-action-wrap\"><a class=\"hc-link-action\" href=\"https:\/\/hanchang.com.tw\/en\/portfolio-item\/sliding-plate-type-compression-machine\/\" aria-labelledby=\"hc-related-3556-3552-title hc-related-3556-3552-action\"><span id=\"hc-related-3556-3552-action\">View machine<\/span> <span aria-hidden=\"true\">\u2192<\/span><\/a><\/p>\n<\/article>\n<article class=\"hc-related-equipment-card hc-link-card\">\n<div class=\"hc-link-copy\"><span class=\"hc-link-kicker\">RELATED EQUIPMENT<\/span><\/p>\n<h3 id=\"hc-related-3556-3551-title\">Double-Station Sliding-Plate and Ejection Compression Molding Machine<\/h3>\n<p>Sliding-plate handling with ejection assistance matched to the mold.<\/p>\n<\/div>\n<p class=\"hc-link-action-wrap\"><a class=\"hc-link-action\" href=\"https:\/\/hanchang.com.tw\/en\/portfolio-item\/sliding-plate-type-ejection-mold-compression-machine\/\" aria-labelledby=\"hc-related-3556-3551-title hc-related-3556-3551-action\"><span id=\"hc-related-3556-3551-action\">View machine<\/span> <span aria-hidden=\"true\">\u2192<\/span><\/a><\/p>\n<\/article>\n<article class=\"hc-related-equipment-card hc-link-card\">\n<div class=\"hc-link-copy\"><span class=\"hc-link-kicker\">MACHINE SELECTION<\/span><\/p>\n<h3 id=\"hc-related-3556-1-title\">Rubber and silicone compression machine selection<\/h3>\n<p>Compare vacuum, sliding-plate and ejection equipment for your parts and tooling.<\/p>\n<\/div>\n<p class=\"hc-link-action-wrap\"><a class=\"hc-link-action\" href=\"https:\/\/hanchang.com.tw\/en\/portfolio_entries\/multi-functional-computerized-rubber-silicon-molding-machine\/\" aria-labelledby=\"hc-related-3556-1-title hc-related-3556-1-action\"><span id=\"hc-related-3556-1-action\">Explore series<\/span> <span aria-hidden=\"true\">\u2192<\/span><\/a><\/p>\n<\/article>\n<\/div>\n<style id=\"hc-related-clickable-v1\">#top.postid-3556 #hcproduct-related-equipment .hc-related-equipment-grid{display:grid;grid-template-columns:repeat(2,minmax(0,1fr));gap:22px;align-items:stretch;width:100%;}\n#top.postid-3556 #hcproduct-related-equipment article.hc-link-card{display:flex;flex-direction:column;justify-content:space-between;gap:25px;position:relative;min-width:0;box-sizing:border-box;background:#eff6f4;border:1px solid #aac3be;border-top:4px solid #27675f;border-radius:8px;padding:26px;text-decoration:none;color:#203f45;cursor:pointer;transition:background .15s,border-color .15s,box-shadow .15s;}\n#top.postid-3556 #hcproduct-related-equipment article.hc-link-card h3{margin:13px 0 14px;font-size:24px;line-height:1.35;letter-spacing:-.3px;color:#203f45;text-transform:none;}\n#top.postid-3556 #hcproduct-related-equipment .hc-link-copy>p:not(.hc-related-label){color:#445d60;font-size:17px;line-height:1.7;letter-spacing:normal;margin:0;}\n#top.postid-3556 #hcproduct-related-equipment .hc-link-kicker,#top.postid-3556 #hcproduct-related-equipment article.hc-link-card .hc-related-label{display:block;font-size:11px;line-height:1.5;letter-spacing:1px;font-weight:700;color:#4c7069;margin:0 0 10px;}\n#top.postid-3556 #hcproduct-related-equipment .hc-link-action{display:flex;align-items:center;justify-content:space-between;gap:20px;min-height:49px;box-sizing:border-box;background:#205c54;color:#fff;font-size:16px;line-height:1.4;letter-spacing:normal;font-weight:700;border-radius:5px;padding:13px 18px;align-self:stretch;text-decoration:none;}\n#top.postid-3556 #hcproduct-related-equipment .hc-link-action>span[aria-hidden]{font-size:23px;line-height:1;color:inherit;}\n#top.postid-3556 #hcproduct-related-equipment .hc-link-action-wrap{margin:0;}\n#top.postid-3556 #hcproduct-related-equipment .hc-link-action::after{content:\"\";position:absolute;inset:0;border-radius:8px;}\n#top.postid-3556 #hcproduct-related-equipment .hc-link-action:hover{color:#fff;text-decoration:none;}\n#top.postid-3556 #hcproduct-related-equipment article.hc-link-card:focus-within{outline:3px solid #97621a;outline-offset:4px;}\n#top.postid-3556 #hcproduct-related-equipment article.hc-link-card:hover{background:#e4f0ed;border-color:#397c70;box-shadow:0 5px 15px #17483e17;color:#203f45;text-decoration:none;}\n#top.postid-3556 #hcproduct-related-equipment article.hc-link-card:hover .hc-link-action{background:#164b44;color:#fff;}\n#top.postid-3556 #hcproduct-related-equipment article.hc-link-card:focus-visible,#top.postid-3556 #hcproduct-related-equipment .hc-related-series-link:focus-visible{outline:3px solid #97621a;outline-offset:4px;}\n#top.postid-3556 #hcproduct-related-equipment a.hc-related-series-link{display:block;box-sizing:border-box;border:1px solid #aac3be;border-radius:6px;margin-top:22px;padding:18px 22px;color:#205c54;font-size:17px;line-height:1.5;font-weight:700;text-decoration:underline;text-underline-offset:4px;background:#fff;min-height:58px;}\n@media(max-width:650px){#top.postid-3556 #hcproduct-related-equipment .hc-related-equipment-grid{grid-template-columns:minmax(0,1fr);gap:18px;}#top.postid-3556 #hcproduct-related-equipment article.hc-link-card{padding:22px;gap:22px;}#top.postid-3556 #hcproduct-related-equipment article.hc-link-card h3{font-size:22px;}#top.postid-3556 #hcproduct-related-equipment .hc-link-copy>p:not(.hc-related-label){font-size:16px;line-height:1.65;}#top.postid-3556 #hcproduct-related-equipment a.hc-related-series-link{font-size:16px;padding:18px 20px;}}\n@media(prefers-reduced-motion:reduce){#top.postid-3556 #hcproduct-related-equipment article.hc-link-card{transition:none;}}<\/style>\n<\/section>\n<section class=\"hc-product-section hc-rfq-section\" id=\"hcproduct-rfq\">\n<div class=\"hc-section-heading\">\n<h2>Choose a double-station vacuum press for rubber and silicone<\/h2>\n<\/div>\n<p>Send a product photo, drawing or mold details with your compound and production requirements. Han Chang can discuss molding force, platen size and heating configuration, then quote the corresponding machine.<\/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<section class=\"hc-gsc-discovery-links\">\n<div class=\"hc-section-heading\">\n<h2>Technical information<\/h2>\n<\/div>\n<ul><\/ul>\n<ul>\n<li><a href=\"https:\/\/hanchang.com.tw\/en\/portfolio-item\/sliding-plate-type-ejection-mold-compression-machine\/\">Double-Station Sliding-Plate and Ejection Compression Molding Machine<\/a><\/li>\n<\/ul>\n<\/section>\n<\/div>\n<\/div><\/section>\n","protected":false},"excerpt":{"rendered":"<p>Vacuum compression molding for rubber and silicone parts, with independently controlled left and right stations. Vacuum evacuation draws away gases released during pressing.<\/p>\n","protected":false},"author":5,"featured_media":4623,"comment_status":"closed","ping_status":"closed","template":"","meta":{"footnotes":""},"tags":[],"portfolio_entries":[85],"class_list":["post-3556","portfolio","type-portfolio","status-publish","has-post-thumbnail","hentry","portfolio_entries-multi-functional-computerized-rubber-silicon-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>Double-Station Vacuum Compression Molding Machine | Han Chang<\/title>\n<meta name=\"description\" content=\"Han Chang vacuum compression presses mold rubber seals, grommets, vibration pads and silicone keypads or bakeware. 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