{"id":38018,"date":"2026-02-25T20:00:00","date_gmt":"2026-02-25T12:00:00","guid":{"rendered":"https:\/\/zetarmold.com\/?p=38018"},"modified":"2026-05-03T14:33:05","modified_gmt":"2026-05-03T06:33:05","slug":"spuitgietmatrijs-met-meerdere-caviteiten","status":"publish","type":"post","link":"https:\/\/zetarmold.com\/nl\/spuitgietmatrijs-met-meerdere-caviteiten\/","title":{"rendered":"Wat komt er kijken bij een offerte voor een spuitgietmatrijs en hoe kun je de beste prijs krijgen?"},"content":{"rendered":"<h2>What Exactly Is a Multiple Cavity Injection Mold?<\/h2>\n<div class=\"callout-key\" style=\"background:#f0f7ff; border-left:4px solid #2563eb; padding:1em 1.2em; border-radius:6px; margin:1.5em 0;\">\n<strong>Belangrijkste opmerkingen<\/strong><\/p>\n<ul>\n<li>Wat Is Een Meervoudige Holte Spuitgietmatrijs en Hoe Verhoogt Het De<\/li>\n<li>Cavity counts range from 2 to 128+, chosen based on annual volume, part size, and press tonnage<\/li>\n<li>Balanced runner design and uniform cooling are the two biggest factors in consistent part quality across all cavities<\/li>\n<li>Upfront tooling cost is higher than a single-cavity mold, but ROI often pays back within the first production run<\/li>\n<li>ZetarMold builds multi-cavity tools up to 128 cavities with cavity-to-cavity weight variation under 1%<\/li>\n<\/ul>\n<\/div>\n<p>For readers comparing <a href=\"https:\/\/zetarmold.com\/nl\/injection-molding-complete-guide\/\">spuitgieten<\/a><sup id=\"fnref1:2\"><a href=\"#fn:2\" class=\"footnote-ref\">2<\/a><\/sup> options, this article connects the <a href=\"https:\/\/zetarmold.com\/nl\/injection-mold-complete-guide\/\">spuitgietvorm<\/a>, <a href=\"https:\/\/zetarmold.com\/nl\/injection-molding-complete-guide\/\">kunststof<\/a><sup id=\"fnref1:3\"><a href=\"#fn:3\" class=\"footnote-ref\">3<\/a><\/sup> material behavior, supplier evaluation, and quality control decisions that determine whether a project can move from design to repeatable production.<\/p>\n<p>For broader context, compare this topic with <a href=\"https:\/\/zetarmold.com\/nl\/injection-mold-complete-guide\/\">ontwerp van spuitgietmatrijzen<\/a>, en leverancier sourcing guide.<\/p>\n<p>A multiple cavity injection mold is a tool that contains two or more identical cavities machined into the same mold base, allowing the press to produce multiple parts with every cycle. Instead of one shot yielding one part, a 16-cavity mold delivers 16 parts per shot\u2014same resin, same cycle time, fraction of the cost per piece.<\/p>\n<figure style=\"text-align:center;margin:2em 0;\">\n<img fetchpriority=\"high\" decoding=\"async\" width=\"800\" height=\"457\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/03\/injection-mold-steel-cavity-selection.jpg\" alt=\"injectie mal steel cavity selectie\" class=\"wp-image-52608 size-full\" style=\"max-width:100%;height:auto;\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/03\/injection-mold-steel-cavity-selection.jpg 800w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/03\/injection-mold-steel-cavity-selection-300x171.jpg 300w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/03\/injection-mold-steel-cavity-selection-768x439.jpg 768w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/03\/injection-mold-steel-cavity-selection-18x10.jpg 18w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/03\/injection-mold-steel-cavity-selection-600x343.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption style=\"font-size:0.78em; color:#888; font-style:italic; margin-top:4px; text-align:center;\">Steel cavity selectie voor multi-cavity injectie.<\/figcaption><\/figure>\n<p>In onze fabriek bij ZetarMold, classificeren we mallen op cavity aantal: single-cavity (1), low multi-cavity (2\u20138), medium multi-cavity (16\u201332), en high multi-cavity (64\u2013128+). De juiste categorie hangt af van je jaarlijkse volume doel, plastic precisie injectie mal ontwerp, en de beschikbare pers size.<\/p>\n<p>The concept is straightforward, but the engineering behind it is anything but simple. Every cavity must fill at the same time, cool at the same rate, and eject without interference. When done right, a multi-cavity mold is the single most effective way to scale injection molding output without buying more machines.<\/p>\n<div class=\"factory-insight\" style=\"background:#f0f7ff;border-left:4px solid #0066cc;padding:12px 16px;margin:1.5em 0;\"><strong>\ud83c\udfed ZetarMold Factory Insight<\/strong><br \/>In our Shanghai factory, we run 47 injection molding machines from 90T to 1850T. With over 20 years of experience and an in-house mold manufacturing facility, we build multi-cavity tools that deliver consistent part quality across every cavity.<\/div>\n<h2>What Are the Key Design Parameters of a Multi-Cavity Mold?<\/h2>\n<p>The key design parameters of a multi-cavity mold are the main categories or options explained in this section. The critical design parameters include cavity layout, runner balance, cooling channel placement, venting, and ejection strategy. Getting any one of these wrong leads to short shots, flash, or dimensional variation between cavities.<\/p>\n<p>We\u2019ve found that runner balance is the single most debated topic in multi-cavity mold design. There are two main approaches:<\/p>\n<p><b>Naturally balanced (geometrically symmetric) runners<\/b> \u2013 every cavity sits the same flow distance from the sprue. This is the gold standard for consistency but requires more mold real estate.<\/p>\n<p><b>Artificially balanced runners<\/b> \u2013 cavity positions are asymmetric, and balance is achieved by varying runner diameters or gate sizes. This saves mold space but is harder to fine-tune.<\/p>\n<table style=\"width:100%;border-collapse:collapse;margin:1.5em 0;\">\n<thead>\n<tr>\n<th style=\"border:1px solid #ddd;padding:8px;background:#f5f5f5;\">Design Parameter<\/th>\n<th style=\"border:1px solid #ddd;padding:8px;background:#f5f5f5;\">Typical Range \/ Value<\/th>\n<th style=\"border:1px solid #ddd;padding:8px;background:#f5f5f5;\">Why It Matters<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">Cavity count<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">2, 4, 8, 16, 32, 64, 128<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Directly sets output per cycle<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">Runner type<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Cold runner \/ Hot runner<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Hot runners reduce waste and improve balance<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">Cavity spacing<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Minimum 2\u00d7 wall thickness between cavities<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Prevents thermal crosstalk and structural weakness<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">Cooling channel diameter<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">6\u201312 mm<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Controls cycle time and warpage<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">Gate type<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Sub-gate, pin gate, valve gate<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Affects vestige, balance, and automation<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">Cavity-to-cavity weight variation<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">&lt; 1\u20132%<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Key quality metric for multi-cavity tools<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">Mold steel<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">P20, H13, S136<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">Determines mold life and polish capability<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Bij ZetarMold, gebruiken we mold flow analyse op elk multi-cavity project voordat we steel snijden. De simulatie laat ons fill imbalance, weld line locaties, en cooling hot spots zien \u2014 problemen die veel kosteneffici\u00ebnter op scherm te fixen zijn dan in metaal.<\/p>\n<div class=\"claim claim-true\" style=\"background-color: #eff7ef; border-color: #eff7ef; color: #5a8a5a;\">\n<p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#16a34a\" stroke-width=\"2\"><path d=\"M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z\"\/><\/svg><b>\"\"Malstromsimulatie is essentieel voor multi-cavit malontwerp om een gebalanceerde vulling over alle caviteiten te garanderen.\"\"<\/b><span class=\"claim-true-or-false\">Echt<\/span><\/p>\n<p class=\"claim-explanation\">Simulation reveals fill-time differences, pressure drops, and thermal imbalances between cavities before any steel is cut, allowing engineers to optimize runner sizes and gate locations for uniform filling.<\/p>\n<\/div>\n<div class=\"claim claim-false\" style=\"background-color: #f7e8e8; border-color: #f7e8e8; color: #8a4a4a;\">\n<p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#dc2626\" stroke-width=\"2\"><line x1=\"18\" y1=\"6\" x2=\"6\" y2=\"18\"\/><line x1=\"6\" y1=\"6\" x2=\"18\" y2=\"18\"\/><\/svg><b>\"\"Je kunt simpelweg een layout voor een \u00e9\u00e9n-cavit mal kopi\u00ebren en dupliceren om een multi-cavit gereedschap te cre\u00ebren.\"\"<\/b><span class=\"claim-true-or-false\">Vals<\/span><\/p>\n<p class=\"claim-explanation\">A multi-cavity mold requires a completely re-engineered runner system, cooling layout, and ejection scheme. Simply duplicating cavities without rebalancing the feed system leads to fill imbalance, dimensional variation, and quality defects.<\/p>\n<\/div>\n<h2>Why Does a Multi-Cavity Mold Matter for Production Efficiency?<\/h2>\n<p>A multi-cavity mold matters because it multiplies output without multiplying machine time, labor, or floor space. If your single-cavity mold runs a 20-second cycle, switching to an 8-cavity tool gives you 8\u00d7 the parts in the same 20 seconds (cycle time may increase slightly\u2014typically 5\u201315%\u2014due to larger shot size and cooling demands, but the net throughput gain is enormous).<\/p>\n<p>In our experience at ZetarMold, the advantages break down like this:<\/p>\n<p><b>Lower per-part cost<\/b> \u2013 Machine hourly rate is divided across more parts. A 16-cavity mold can cut piece price by 60\u201380% versus a single-cavity tool.<\/p>\n<p><b>Reduced labor per part<\/b> \u2013 One operator runs one press regardless of cavity count.<\/p>\n<p><b>Faster time to volume<\/b> \u2013 High-volume launches meet demand sooner without needing multiple molds or presses.<\/p>\n<p><b>Consistent quality<\/b> \u2013 All parts come from the same process conditions in the same shot, reducing lot-to-lot variation.<\/p>\n<p>We\u2019ve seen customers cut their total program cost by 40% simply by moving from a 4-cavity to a 16-cavity mold on a bottle cap project producing 50 million units per year.<\/p>\n<h2>What Are the Common Challenges and How Do You Solve Them?<\/h2>\n<p>The most common challenges are fill imbalance, uneven cooling, higher upfront tooling cost, and more complex maintenance. Each has proven solutions that experienced mold makers apply routinely.<\/p>\n<p><b>Fill imbalance<\/b> is the number-one issue. Even in geometrically balanced runners, a phenomenon called shear-induced imbalance can cause inner and outer cavities to fill differently. We solve this with MeltFlipper\u00ae technology or artificially adjusted runner diameters validated through simulation and short-shot studies.<\/p>\n<p><b>Uneven cooling<\/b> happens when cavities in the center of the mold run hotter than those on the edges. We address this with conformal cooling channels in critical zones and independent cooling circuits per cavity row, monitored by thermocouples during trial runs.<\/p>\n<figure style=\"text-align:center;margin:2em 0;\">\n<img decoding=\"async\" width=\"800\" height=\"457\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/injection-mold-and-injection-m-800x457-1.jpg\" alt=\"Spuitgietmatrijs en spuitgegoten product close-up\" class=\"wp-image-53262 size-full\" style=\"max-width:100%;height:auto;\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/injection-mold-and-injection-m-800x457-1.jpg 800w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/injection-mold-and-injection-m-800x457-1-300x171.jpg 300w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/injection-mold-and-injection-m-800x457-1-768x439.jpg 768w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/injection-mold-and-injection-m-800x457-1-18x10.jpg 18w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/injection-mold-and-injection-m-800x457-1-600x343.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption style=\"font-size:0.78em; color:#888; font-style:italic; margin-top:4px; text-align:center;\">Close-up van een multi-cavity injectie mal.<\/figcaption><\/figure>\n<p><b>Higher tooling cost<\/b> is real\u2014a 16-cavity mold might cost 3\u20135\u00d7 more than a single-cavity version. But when amortized over hundreds of thousands or millions of parts, the per-piece tooling amortization drops well below the single-cavity alternative. We help customers run ROI calculations before committing to a cavity count.<\/p>\n<p><b>Maintenance complexity<\/b> increases with cavity count. More cavities mean more core pins, more ejector pins, more cooling lines to inspect. At ZetarMold, we design modular cavity inserts so individual cavities can be pulled for repair without disassembling the entire mold.<\/p>\n<h2>Which Industries and Applications Use Multi-Cavity Molds?<\/h2>\n<p>Multi-cavity molds are used wherever high volumes of identical small-to-medium parts are needed\u2014packaging, medical devices, consumer electronics, automotive, and household goods are the top five sectors.<\/p>\n<p>Here\u2019s what we build most often at ZetarMold:<\/p>\n<p><b>Verpakking<\/b> \u2013 Bottle caps (32\u2013128 cavities), thin-wall containers, closures<\/p>\n<p><b>Medisch<\/b> \u2013 Syringe barrels, pipette tips, diagnostic cartridge housings (16\u201364 cavities, often in cleanroom-grade steel)<\/p>\n<div class=\"claim claim-true\" style=\"background-color: #eff7ef; border-color: #eff7ef; color: #5a8a5a;\">\n<p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#16a34a\" stroke-width=\"2\"><path d=\"M9 16.17L4.83 12l-1.42 1.41L9 19 21 7l-1.41-1.41z\"\/><\/svg><b>\"\"De primaire factor die het optimale caviteitenaantal bepaalt is de jaarlijkse productievolume in balans met de gereedschapinvestering.\"\"<\/b><span class=\"claim-true-or-false\">Echt<\/span><\/p>\n<p class=\"claim-explanation\">Cavity count is an economic optimization: more cavities lower per-part cost but raise upfront tooling expense. The breakeven point depends on annual volume, part price target, and available press capacity.<\/p>\n<\/div>\n<div class=\"claim claim-false\" style=\"background-color: #f7e8e8; border-color: #f7e8e8; color: #8a4a4a;\">\n<p><svg xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"20\" height=\"20\" viewbox=\"0 0 24 24\" fill=\"none\" stroke=\"#dc2626\" stroke-width=\"2\"><line x1=\"18\" y1=\"6\" x2=\"6\" y2=\"18\"\/><line x1=\"6\" y1=\"6\" x2=\"18\" y2=\"18\"\/><\/svg><b>\"\"Multi-cavit mallen zijn alleen geschikt voor simpele, platte onderdelen.\"\"<\/b><span class=\"claim-true-or-false\">Vals<\/span><\/p>\n<p class=\"claim-explanation\">Modern multi-cavity molds handle complex geometries including undercuts (via lifters and slides), textured surfaces, and tight tolerances. The key constraint is part size relative to available press platen area, not geometric complexity.<\/p>\n<\/div>\n<p><b>Elektronica<\/b> \u2013 Connector housings, LED lens arrays, switch covers (8\u201332 cavities)<\/p>\n<p><b>Automotive<\/b> \u2013 Small clips, fasteners, sensor housings (4\u201316 cavities)<\/p>\n<p><b>Consumer goods<\/b> \u2013 Toothbrush heads, razor cartridge components, toy parts<\/p>\n<p>The common thread is annual volume. As a rule of thumb, if you\u2019re producing fewer than 50,000 parts per year, a single or 2-cavity mold is usually sufficient. Above 500,000 parts per year, multi-cavity tooling almost always makes economic sense.<\/p>\n<figure style=\"text-align:center;margin:2em 0;\">\n<img decoding=\"async\" width=\"800\" height=\"457\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/Factory-800x457-1.jpg\" alt=\"ZetarMold Injection Molding Factory\" class=\"wp-image-53339 size-full\" style=\"max-width:100%;height:auto;\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/Factory-800x457-1.jpg 800w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/Factory-800x457-1-300x171.jpg 300w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/Factory-800x457-1-768x439.jpg 768w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/Factory-800x457-1-18x10.jpg 18w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/Factory-800x457-1-600x343.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption style=\"font-size:0.78em; color:#888; font-style:italic; margin-top:4px; text-align:center;\">ZetarMold fabriek uitgerust voor multi-cavity mal.<\/figcaption><\/figure>\n<h2>What Does the Design and Manufacturing Process Look Like?<\/h2>\n<p>The process follows a structured sequence: DFM review, cavity count optimization, mold flow simulation, detailed mold design, steel cutting, assembly, trial, and qualification. At ZetarMold, the entire cycle from design kick-off to T1 samples typically takes 4\u20138 weeks depending on complexity.<\/p>\n<p>Here\u2019s how we approach it:<\/p>\n<p><b>DFM review<\/b> \u2013 We analyze the part design for moldability, draft angles, wall thickness uniformity, and gate location options.<\/p>\n<p><b>Cavity count study<\/b> \u2013 Based on annual volume, target piece price, and available press sizes, we recommend an optimal cavity count with ROI projections.<\/p>\n<p><b>Simulatie van schimmelstromen<\/b> \u2013 Fill, pack, cool, and warp analyses confirm runner balance, cooling performance, and expected shrinkage behavior.<\/p>\n<p><b>Detailed design<\/b> \u2013 Full 3D mold design in NX\/UG or SOLIDWORKS, including runner system, cooling circuits, ejection layout, and mold base selection.<\/p>\n<p><b>Steel machining<\/b> \u2013 CNC milling, EDM, wire EDM, and grinding to tolerances of \u00b10.005 mm on critical cavity dimensions.<\/p>\n<p><b>Assembly and spotting<\/b> \u2013 All components are assembled, parting line fit is verified by blue-spotting, and cooling circuits are pressure-tested.<\/p>\n<p><b>Mold trial (T1)<\/b> \u2013 First shots are run, parts are measured against drawings, and process parameters are documented.<\/p>\n<p><b>Optimization (T2\/T3 if needed)<\/b> \u2013 Fine-tuning runner sizes, cooling times, or gate dimensions until all cavities meet spec.<\/p>\n<h2>How Does Cavity Count Affect Part Quality and Total Cost?<\/h2>\n<p>Cavity count affects quality through its influence on fill balance and cooling uniformity, and it affects total cost through the trade-off between higher tooling investment and lower per-part production cost. The sweet spot is the cavity count where total program cost (tooling + production) is minimized while maintaining required quality standards.<\/p>\n<p>We\u2019ve compiled data from recent ZetarMold projects to illustrate the economics:<\/p>\n<table style=\"width:100%;border-collapse:collapse;margin:1.5em 0;\">\n<thead>\n<tr>\n<th style=\"border:1px solid #ddd;padding:8px;background:#f5f5f5;\">Cavity Count<\/th>\n<th style=\"border:1px solid #ddd;padding:8px;background:#f5f5f5;\">Relative Mold Cost<\/th>\n<th style=\"border:1px solid #ddd;padding:8px;background:#f5f5f5;\">Cycle Time (sec)<\/th>\n<th style=\"border:1px solid #ddd;padding:8px;background:#f5f5f5;\">Parts\/Hour<\/th>\n<th style=\"border:1px solid #ddd;padding:8px;background:#f5f5f5;\">Per-Part Cost Index<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">1<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">1.0\u00d7<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">18<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">200<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">1.00<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">4<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">2.2\u00d7<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">20<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">720<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">0.38<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">8<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">3.0\u00d7<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">22<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">1,309<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">0.22<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">16<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">4.5\u00d7<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">24<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">2,400<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">0.15<\/td>\n<\/tr>\n<tr>\n<td style=\"border:1px solid #ddd;padding:8px;\">32<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">7.0\u00d7<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">26<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">4,431<\/td>\n<td style=\"border:1px solid #ddd;padding:8px;\">0.11<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Zoals de tabel laat zien, verdubbeling van cavities verdubbelt niet de mal kosten \u2014 er zijn schaalvoordelen in de malbasis, hot runner systeem, en ontwerpwerk. Tegelijkertijd daalt de per-part kost sterk. Voor een programma dat meer dan 500.000 onderdelen jaarlijks produceert, betaalt de extra tooling investering zich typisch terug binnen 3 tot 6 maanden door cyclus tijd besparingen en lagere per-piece prijs. Dat gezegd, het break-even punt hangt sterk af van onderdeel geometrie, materiaal selectie, en of je side actions of lifters nodig hebt in de mal.<\/p>\n<p>Op het gebied van kwaliteit vereisen hogere aantal cavities een strakker procescontrole. We monteren de gewichtsvariatie tussen cavities bij elke productierun \u2014 als een cavity meer dan 2% afwijkt van het gemiddelde, stoppen we en onderzoeken we. Veelvoorkomende oorzaken zijn versleten gate inserts, geblokkeerde koelcircuits, of inconsistente smeltemperatuur over een breed manifold. Wetenschappelijke spuitgietprincipes zoals gedecoupled molding en in-mold druksensoren helpen shot-to-shot consistentie over alle cavities te behouden. Voor kritische medische of automotive onderdelen, voegen we cavity-specifieke traceability toe zodat elk stuk teruggevoerd kan worden naar zijn exacte positie in de mal.<\/p>\n<figure style=\"text-align:center;margin:2em 0;\">\n<img loading=\"lazy\" decoding=\"async\" width=\"800\" height=\"457\" src=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/injection-molding-products-mas-800x457-1.jpg\" alt=\"Injection Molding Products Mass Production\" class=\"wp-image-53251 size-full\" style=\"max-width:100%;height:auto;\" srcset=\"https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/injection-molding-products-mas-800x457-1.jpg 800w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/injection-molding-products-mas-800x457-1-300x171.jpg 300w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/injection-molding-products-mas-800x457-1-768x439.jpg 768w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/injection-molding-products-mas-800x457-1-18x10.jpg 18w, https:\/\/zetarmold.com\/wp-content\/uploads\/2026\/04\/injection-molding-products-mas-800x457-1-600x343.jpg 600w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><figcaption style=\"font-size:0.78em; color:#888; font-style:italic; margin-top:4px; text-align:center;\">Massaproductie onderdelen uit een multi-cavity mal.<\/figcaption><\/figure>\n<h2>Veelgestelde vragen<\/h2>\n<h3>What is the difference between a multi-cavity mold and a family mold?<\/h3>\n<p>A multi-cavity mold produces multiple copies of the same part in each shot, meaning every cavity is identical. A family mold, on the other hand, produces different parts in the same mold, for example a left and right housing, or a cap and its matching base. Family molds are harder to balance because different part geometries have different flow resistance, cooling times, and shrinkage rates. In practice, multi-cavity molds are preferred for high-volume production of a single part, while family molds are used when you need several related parts that must match each other precisely.<\/p>\n<h3>How do I decide the right cavity count for my project?<\/h3>\n<p>Yes. More cavities mean a larger total shot volume and a bigger projected area on the parting line, both of which require more clamp tonnage and shot capacity. A 16-cavity mold typically needs a press 3 to 4 times larger than a single-cavity version of the same part. The required clamp force is roughly proportional to the total projected cavity area, so doubling cavity count approximately doubles the required tonnage. Before committing to a cavity count, confirm that your molder has a press large enough for the projected shot volume and platen size.<\/p>\n<h3>Do multi-cavity molds require larger injection molding machines?<\/h3>\n<p>Yes. More cavities mean a larger total shot volume and a bigger projected area on the parting line, both of which require more clamp tonnage and shot capacity. A 16-cavity mold typically needs a press 3 to 4 times larger than a single-cavity version of the same part. The required clamp force is roughly proportional to the total projected cavity area, so doubling cavity count approximately doubles the required tonnage. Before committing to a cavity count, confirm that your molder has a press large enough for the projected shot volume and platen size.<\/p>\n<h3>Can I start with fewer cavities and add more later?<\/h3>\n<p>It is possible if the mold base is designed for expansion from the beginning, often called a scalable or expandable mold base. The mold designer leaves blank cavity positions with pre-drilled cooling channels and ejector pin holes so additional inserts can be added later. However, retrofitting cavities into a mold not originally designed for it is usually impractical and costly. We recommend planning the final cavity count upfront, even if you phase the cavity inserts over time to manage initial tooling investment.<\/p>\n<h3>How long does a multi-cavity mold last?<\/h3>\n<p>Mold life depends on steel grade, part material, and maintenance quality. A well-built multi-cavity mold in hardened H13 or S136 steel typically lasts 500,000 to 2,000,000 or more shots. Softer steels like P20 may reach 300,000 to 500,000 shots before requiring significant refurbishment. Regular maintenance, including cleaning cooling channels, replacing worn ejector pins, and polishing cavity surfaces, extends tool life considerably. At ZetarMold, we guarantee mold life based on the SPI mold class specified in the project scope and provide preventive maintenance schedules for all production tools.<\/p>\n<h2>Wat Maakt Multiple Cavity Molds de Sleutel tot Scalable Productie?<\/h2>\n<p>A multiple cavity injection mold is the workhorse behind high-volume plastic part production. By producing multiple identical parts per cycle, it slashes per-unit cost, maximizes press utilization, and delivers consistent quality across every cavity. The trade-off is higher upfront tooling investment and greater engineering complexity\u2014but for programs above 100,000 parts per year, the economics almost always favor multi-cavity tooling.<\/p>\n<p>Bij ZetarMold hebben we honderden multi-cavit mallen gebouwd, vari\u00ebrend van 2 tot 128 caviteiten, voor toepassingen in verpakkingen, medische, automotive en consumentenelektronica. Onze aanpak combineert malstromsimulatie, precisie CNC-bewerking tot \u00b10.005 mm, en rigoureuze testprotocollen om te zorgen dat elke caviteit identiek presteert. Als je een hoogvolumeprogramma plannen en multi-cavit gereedschap willen onderzoeken, neem contact op met ons engineeringteam voor een gratis DFM-review en caviteitenaantaladvies.<\/p>\n<p>Need a Quote for Your Injection Molding Project?<\/p>\n<p>Get competitive pricing, DFM feedback, and production timeline from ZetarMold\u2019s engineering team.<\/p>\n<p>Request a Free Quote \u2192<\/p>\n<hr style=\"margin:2em 0;border:none;border-top:1px solid #e0e0e0;\" \/>\n<ol class=\"footnotes\">\n<li id=\"fn:2\">\n<p><strong>injection mold:<\/strong> injection mold refers to an injection mold is the precision tool that defines part geometry, cooling behavior, ejection, gating, surface finish, and repeatability. <a href=\"#fnref1:1\" class=\"footnote-backref\">\u21a9<\/a><\/p>\n<\/li>\n<li id=\"fn:2\">\n<p><strong>injection molding:<\/strong> injection molding refers to is the production process that melts plastic, injects it into a mold cavity, cools the part, and repeats the cycle for stable volume manufacturing. <a href=\"#fnref1:2\" class=\"footnote-backref\">\u21a9<\/a><\/p>\n<\/li>\n<li id=\"fn:3\">\n<p><strong>plastic:<\/strong> Plastic is a material family whose flow, shrinkage, strength, heat resistance, cosmetic quality, cycle time, and long-term performance shape molding decisions. <a href=\"#fnref1:3\" class=\"footnote-backref\">\u21a9<\/a><\/p>\n<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"<p>Wat Is Precies Een Meervoudige Spuitgietmatrijs? Belangrijkste Punten\nEen meervoudige spuitgietmatrijs produceert verschillende identieke onderdelen in \u00e9\u00e9n keer, waardoor de kosten per eenheid en de cyclustijd aanzienlijk dalen\nHet aantal holtes varieert van 2 tot 128+, gekozen op basis van jaarlijks volume, onderdeelgrootte en perskracht\nEen gebalanceerd spuitsysteemontwerp en uniforme koeling zijn de [\u2026]<\/p>","protected":false},"author":1,"featured_media":38013,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"What Is a Multiple Cavity Injection Mold? | ZetarMold","_seopress_titles_desc":"Learn how multiple cavity injection molds boost production by 8-16x while cutting per-part costs up to 80%. Expert guide from ZetarMold with real factory data.","_seopress_robots_index":"","_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"footnotes":""},"categories":[43],"tags":[48,461,462],"meta_box":{"post-to-quiz_to":[]},"_links":{"self":[{"href":"https:\/\/zetarmold.com\/nl\/wp-json\/wp\/v2\/posts\/38018"}],"collection":[{"href":"https:\/\/zetarmold.com\/nl\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/zetarmold.com\/nl\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/zetarmold.com\/nl\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/zetarmold.com\/nl\/wp-json\/wp\/v2\/comments?post=38018"}],"version-history":[{"count":0,"href":"https:\/\/zetarmold.com\/nl\/wp-json\/wp\/v2\/posts\/38018\/revisions"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/zetarmold.com\/nl\/wp-json\/wp\/v2\/media\/38013"}],"wp:attachment":[{"href":"https:\/\/zetarmold.com\/nl\/wp-json\/wp\/v2\/media?parent=38018"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/zetarmold.com\/nl\/wp-json\/wp\/v2\/categories?post=38018"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/zetarmold.com\/nl\/wp-json\/wp\/v2\/tags?post=38018"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}