{"id":681,"date":"2026-04-10T00:30:38","date_gmt":"2026-04-10T00:30:38","guid":{"rendered":"https:\/\/kurtfoundry.com\/?p=681"},"modified":"2026-04-10T00:43:30","modified_gmt":"2026-04-10T00:43:30","slug":"custom-gearbox-housing","status":"publish","type":"post","link":"https:\/\/kurtfoundry.com\/fr\/product\/custom-gearbox-housing\/","title":{"rendered":"Carter de bo\u00eete de vitesses sur mesure | Fonderie de moulage au sable"},"content":{"rendered":"\n<style>\n    @import url('https:\/\/fonts.googleapis.com\/css2?family=Playfair+Display:wght@400;500;600;700&family=Open+Sans:wght@300;400;600;800&display=swap');\n\n    :root {\n        --primary-dark: #0a0e0d;\n        --primary: #2b3a36;\n        --primary-light: #445851;\n        --accent: #d4af37;\n        --bg-light: #f9f8f4;\n        --bg-white: #ffffff;\n        --bg-gray: #f0efe9;\n        --text-main: #333333;\n        --text-muted: #666666;\n        --text-light: #e0e0e0;\n        --border: #e2dfd5;\n        --transition: 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.gb-table-wrapper {\n        width: 100%;\n        overflow-x: auto;\n        background: var(--bg-white);\n        border-top: 4px solid var(--primary);\n        box-shadow: 0 10px 30px rgba(0, 0, 0, 0.05);\n    }\n\n    .gb-table {\n        width: 100%;\n        min-width: 750px;\n        border-collapse: collapse;\n        text-align: left;\n    }\n\n    .gb-table th,\n    .gb-table td {\n        padding: 1.2rem 1.5rem;\n        border-bottom: 1px solid var(--border);\n    }\n\n    .gb-table th {\n        background-color: var(--bg-light);\n        color: var(--primary-dark);\n        font-family: 'Playfair Display', serif;\n        font-size: 1.05rem;\n        white-space: nowrap;\n    }\n\n    .gb-table tr:last-child td { border-bottom: none; }\n    .gb-table tr:hover td { background-color: var(--bg-gray); }\n    .gb-table td:first-child { font-weight: 600; color: var(--primary); }\n\n    \/* --- UNIQUE LAYOUT: FEATURES (Overlapping Alternating Grid) --- *\/\n    .gb-features {\n  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1rem;\n        border-radius: 4px;\n        overflow: hidden;\n    }\n\n    .gb-accordion-btn {\n        width: 100%;\n        text-align: left;\n        background: var(--bg-light);\n        border: none;\n        padding: 1.2rem 1.5rem;\n        font-family: 'Open Sans', sans-serif;\n        font-size: 1.05rem;\n        font-weight: 600;\n        display: flex;\n        justify-content: space-between;\n        align-items: center;\n        min-height: 44px;\n        outline: none;\n        transition: var(--transition);\n    }\n\n    .gb-accordion-item.active .gb-accordion-btn {\n        background: var(--primary);\n        color: var(--bg-white) !important;\n    }\n\n    .gb-accordion-icon {\n        font-size: 1.5rem;\n        color: var(--accent);\n        transition: transform 0.3s ease;\n        line-height: 1;\n    }\n\n    .gb-accordion-content {\n        max-height: 0;\n        overflow: hidden;\n        transition: max-height 0.4s ease;\n        background: var(--bg-white);\n    }\n\n    .gb-accordion-content-inner {\n        padding: 1.5rem;\n        color: var(--text-muted);\n    }\n\n    .gb-accordion-content p {\n        margin-bottom: 0;\n    }\n\n    .gb-accordion-item.active .gb-accordion-content {\n        max-height: 800px;\n    }\n\n    .gb-accordion-item.active .gb-accordion-icon {\n        transform: rotate(45deg);\n    }\n\n    \/* --- UNIQUE LAYOUT: FINAL CTA (Gold Accent Block) --- *\/\n    .gb-cta {\n        background-color: var(--accent);\n        text-align: center;\n        padding: 5rem 0;\n    }\n\n    .gb-cta-content {\n        max-width: 800px;\n        margin: 0 auto;\n    }\n\n    .gb-cta h2 {\n        color: var(--primary-dark);\n        margin-bottom: 1.5rem;\n    }\n\n    .gb-cta p {\n        color: var(--primary-dark);\n        font-size: 1.1rem;\n        margin-bottom: 2rem;\n        font-weight: 500;\n    }\n\n    \/* --- MEDIA QUERIES --- *\/\n    @media (min-width: 480px) {\n        .gb-hero h1 { font-size: 2.8rem; }\n        .gb-hero-actions { flex-direction: row; }\n        .gb-page { font-size: 16px; }\n    }\n\n    @media (min-width: 768px) {\n        .gb-section { padding: 6rem 0; }\n        .gb-hero { padding: 10rem 1rem 6rem; }\n        .gb-hero h1 { font-size: 3.2rem; }\n        \n        .gb-intro-grid { grid-template-columns: 1fr 1.5fr; align-items: center; }\n        \n        .gb-feature-block { grid-template-columns: 1fr 1fr; gap: 0; }\n        .gb-feature-block .gb-feature-content { margin-left: -3rem; position: relative; z-index: 2; }\n        .gb-feature-block:nth-child(even) .product-img { order: 2; }\n        .gb-feature-block:nth-child(even) .gb-feature-content { margin-left: 0; margin-right: -3rem; order: 1; }\n        \n        .gb-process-grid { grid-template-columns: 1fr 1fr; }\n        \n        .gb-quality-split { grid-template-columns: 1fr 1fr; }\n    }\n\n    @media (min-width: 1024px) {\n        .gb-hero h1 { font-size: 3.8rem; }\n        .gb-hero-content { padding: 4rem; }\n        .gb-process-grid { grid-template-columns: repeat(3, 1fr); }\n        .gb-process-card:nth-child(4), .gb-process-card:nth-child(5) { grid-column: span 1.5; max-width: 500px; margin: 0 auto; width: 100%; }\n        .gb-process-grid { justify-content: center; }\n    }\n\n\/* \u2500\u2500 Hover color overrides (injected) \u2500\u2500 *\/\n.faq-question { cursor: pointer; }\n.faq-question:hover,\n.faq-question.active,\n.faq-item summary:hover,\n.faq-item summary.active,\na:hover,\na:focus { color: var(--primary) !important; }\na { text-decoration: none; }\n\n\/* \u2500\u2500 Layout consistency (injected) \u2500\u2500 *\/\nsection .container,\nsection .content-wrapper,\nsection .section-content,\nsection .hero-content,\nsection .banner-content,\nsection > div:first-child {\n    max-width: 1200px;\n    margin-left: auto;\n    margin-right: auto;\n    width: 100%;\n    box-sizing: border-box;\n}\nsection {\n    padding-left: clamp(1rem, 5vw, 4rem);\n    padding-right: clamp(1rem, 5vw, 4rem);\n}\n<\/style>\n\n<div class=\"gb-page\">\n\n    <section class=\"gb-hero\">\n        <img decoding=\"async\" src=\"https:\/\/kurtfoundry.com\/wp-content\/uploads\/2026\/04\/custom-gearbox-housing-1.webp\" alt=\"Close-up photograph of a heavy-duty custom sand-cast gray iron gearbox housing resting on a steel factory inspection table, showing precision CNC-machined bearing bores and a smooth internal finish, taken under bright overhead LED factory lighting\" class=\"gb-hero-bg product-img\" title=\"\">\n        <div class=\"gb-hero-overlay\"><\/div>\n        <div class=\"gb-container\">\n            <div class=\"gb-hero-content reveal-up\">\n                <span class=\"gb-hero-subtitle\">Direct-Factory Sand Casting &#038; Precision CNC Machining<\/span>\n                <h1>Custom Gearbox Housing Manufacturing &#038; Machining Services<\/h1>\n                <p>We engineer and manufacture heavy-duty custom gearbox housings for industrial applications. From resin sand casting to 5-axis CNC machining, we deliver ready-to-assemble gear cases direct to North American loading docks.<\/p>\n                <div class=\"gb-hero-badges\">\n                    <span class=\"gb-hero-badge\">ISO 9001 Certified<\/span>\n                    <span class=\"gb-hero-badge\">Direct-Factory Pricing<\/span>\n                    <span class=\"gb-hero-badge\">ASTM Compliant<\/span>\n                <\/div>\n                <div class=\"gb-hero-actions\">\n                    <a href=\"https:\/\/kurtfoundry.com\/contact\/\" class=\"btn btn-accent\">Get a Free Quote<\/a>\n                    <a href=\"#materials\" class=\"btn btn-white\">View Material Specifications<\/a>\n                <\/div>\n            <\/div>\n        <\/div>\n    <\/section>\n\n    <section class=\"gb-section gb-intro\">\n        <div class=\"gb-container\">\n            <div class=\"gb-intro-grid\">\n                <div class=\"reveal-up\">\n                    <h2>What is a Custom Gearbox Housing and Why Does Precision Matter?<\/h2>\n                <\/div>\n                <div class=\"gb-intro-text reveal-up delay-1\">\n                    <p>A custom gearbox housing serves as the rigid foundation for any mechanical power transmission system. The gear case must protect internal components from harsh industrial environments while dissipating the immense heat generated by friction. More importantly, the housing must maintain absolute dimensional stability. If the internal bearing bores shift under heavy torque, the gear teeth will misalign and wear prematurely.<\/p>\n                    <p>At Kurt Foundry, we specialize in pouring and machining heavy-duty gear reducer housings for the construction, mining, and agricultural sectors. We understand that a custom gearbox casing is not just a metal shell. The casting requires strict metallurgical control to prevent internal porosity, especially in thick bearing hubs where shrinkage defects commonly occur.<\/p>\n                    <p>We eliminate supply chain middlemen. Our foundry engineers review your CAD drawings, cast the raw housing, and utilize in-house 5-axis CNC centers to machine the bearing and shaft alignments to precise tolerances. You receive a fully finished component ready for your assembly line.<\/p>\n                <\/div>\n            <\/div>\n        <\/div>\n    <\/section>\n\n    <section id=\"materials\" class=\"gb-section gb-specs\">\n        <div class=\"gb-container\">\n            <div class=\"gb-specs-header reveal-up\">\n                <h2>Materials Used for Custom Gearbox Casings<\/h2>\n                <p>Selecting the correct alloy for your gear reducer housing dictates the performance and lifespan of the entire transmission unit. We pour a wide range of ferrous metals to match your specific torque and environmental requirements.<\/p>\n            <\/div>\n            <div class=\"gb-table-wrapper reveal-up delay-1\">\n                <table class=\"gb-table\">\n                    <thead>\n                        <tr>\n                            <th>Material Family<\/th>\n                            <th>Standard \/ Grade<\/th>\n                            <th>Tensile Strength (MPa)<\/th>\n                            <th>Key Benefit for Gearbox Housings<\/th>\n                        <\/tr>\n                    <\/thead>\n                    <tbody>\n                        <tr>\n                            <td>Gray Iron<\/td>\n                            <td>ASTM A48 Class 30 \/ 35<\/td>\n                            <td>&ge; 207 &#8211; 241<\/td>\n                            <td>Exceptional vibration damping and superior machinability. Ideal for standard industrial gearboxes.<\/td>\n                        <\/tr>\n                        <tr>\n                            <td>Ductile Iron<\/td>\n                            <td>ASTM A536 65-45-12<\/td>\n                            <td>&ge; 448<\/td>\n                            <td>High impact resistance and tensile strength. Best for heavy-duty gear cases experiencing shock loads.<\/td>\n                        <\/tr>\n                        <tr>\n                            <td>Carbon Steel<\/td>\n                            <td>ASTM A216 WCB<\/td>\n                            <td>485 &ndash; 655<\/td>\n                            <td>Extreme toughness and weldability. Used for massive structural gearboxes in mining and oil applications.<\/td>\n                        <\/tr>\n                    <\/tbody>\n                <\/table>\n            <\/div>\n        <\/div>\n    <\/section>\n\n    <section class=\"gb-section gb-features\">\n        <div class=\"gb-container\">\n            <div class=\"gb-features-header reveal-up\">\n                <h2>Engineering the Perfect Gear Case<\/h2>\n            <\/div>\n            \n            <div class=\"gb-feature-block reveal-up delay-1\">\n                <img decoding=\"async\" src=\"https:\/\/kurtfoundry.com\/wp-content\/uploads\/2026\/04\/custom-gearbox-housing-2.webp\" alt=\"Detailed photograph of a large ductile iron gear reducer casing being machined on a 5-axis CNC mill, with metal shavings visible and coolant fluid spraying onto the cutting tool, industrial factory background\" class=\"product-img\" loading=\"lazy\" width=\"900\" height=\"600\" title=\"\">\n                <div class=\"gb-feature-content\">\n                    <h3>Exceptional Vibration Damping<\/h3>\n                    <p>High-speed gear rotation generates significant vibration. We frequently recommend <a href=\"https:\/\/kurtfoundry.com\/capabilities\/custom-gray-iron-castings\/\">custom gray iron castings<\/a> for standard gearbox applications. The flake graphite microstructure within the gray iron acts as a natural dampener, absorbing mechanical resonance before that vibration can damage the internal bearings or surrounding machinery.<\/p>\n                    \n                    <h3 style=\"margin-top: 2rem;\">Precision CNC Machining for Bearing Alignment<\/h3>\n                    <p>A raw casting is useless if the internal shafts do not align perfectly. We do not outsource our machining. Kurt Foundry utilizes dedicated 5-axis CNC milling centers to bore the bearing housings and tap the mounting holes. We routinely achieve tight surface roughness standards (such as Ra0.8) on critical mating surfaces to ensure leak-free gasket seals.<\/p>\n                <\/div>\n            <\/div>\n\n            <div class=\"gb-feature-block reveal-up delay-1\">\n                <div class=\"gb-feature-content\">\n                    <h3>High-Torque Impact Resistance<\/h3>\n                    <p>For applications involving sudden mechanical shock\u2014such as agricultural PTO gearboxes or heavy crane hoists\u2014standard iron will crack. For these extreme environments, we pour <a href=\"https:\/\/kurtfoundry.com\/capabilities\/custom-ductile-iron-castings\/\">custom ductile iron castings<\/a>. The spherical graphite structure provides the yield strength necessary to contain massive torque spikes without fracturing the outer casing.<\/p>\n                <\/div>\n                <img decoding=\"async\" src=\"https:\/\/kurtfoundry.com\/wp-content\/uploads\/2026\/04\/custom-gearbox-housing-3.webp\" alt=\"Professional product photograph of a finished carbon steel gear case painted with industrial gray rust-preventative coating, sitting on a wooden ISPM-15 export pallet ready for shipping\" class=\"product-img\" loading=\"lazy\" width=\"900\" height=\"600\" title=\"\">\n            <\/div>\n        <\/div>\n    <\/section>\n\n    <section class=\"gb-section gb-process\">\n        <div class=\"gb-container\">\n            <h2 class=\"reveal-up\">Our Manufacturing Process for Gear Reducer Housings<\/h2>\n            <p class=\"reveal-up delay-1\" style=\"text-align: center; color: var(--text-light); max-width: 800px; margin: 0 auto 3rem;\">We control every step of the <a href=\"https:\/\/kurtfoundry.com\/blog\/sand-casting-how-it-works\/\" style=\"color: var(--accent);\">sand casting process<\/a> to ensure your custom gear cases meet strict engineering standards.<\/p>\n            \n            <div class=\"gb-process-grid reveal-up delay-2\">\n                <div class=\"gb-process-card\">\n                    <h3>DFM &#038; Solidification Simulation<\/h3>\n                    <p>Our engineers analyze your 3D CAD model using Magmasoft simulation. We design optimal gating and risering systems to promote directional solidification. This simulation software prevents shrinkage cavities inside the thickest sections of the gear case.<\/p>\n                <\/div>\n                <div class=\"gb-process-card\">\n                    <h3>Resin Sand Molding<\/h3>\n                    <p>We utilize furan resin-bonded sand to create the molds. Resin sand provides extreme rigidity compared to traditional green sand. That rigidity ensures the heavy molten metal does not warp the mold cavity, maintaining excellent dimensional accuracy for large housings.<\/p>\n                <\/div>\n                <div class=\"gb-process-card\">\n                    <h3>Spectrometer-Verified Pouring<\/h3>\n                    <p>Before we pour any metal, our metallurgists analyze the molten bath using optical emission spectrometry. We verify the exact carbon equivalent and alloy composition to ensure strict compliance with ASTM or DIN standards.<\/p>\n                <\/div>\n                <div class=\"gb-process-card\">\n                    <h3>Heat Treatment &#038; Stress Relieving<\/h3>\n                    <p>Heavy gear cases often develop internal residual stresses during the cooling phase. We perform in-house normalizing and tempering, particularly for <a href=\"https:\/\/kurtfoundry.com\/capabilities\/custom-carbon-steel-castings\/\" style=\"color: var(--accent);\">custom carbon steel castings<\/a>, to relieve these stresses and improve the machinability of the metal.<\/p>\n                <\/div>\n                <div class=\"gb-process-card\">\n                    <h3>Precision CNC Machining<\/h3>\n                    <p>The heat-treated castings move directly to our machining workshop. Our technicians mill the mating flanges flat, bore the precise bearing locations, and drill the necessary bolt patterns.<\/p>\n                <\/div>\n            <\/div>\n        <\/div>\n    <\/section>\n\n    <section class=\"gb-section gb-quality\">\n        <div class=\"gb-container\">\n            <div class=\"gb-quality-split\">\n                <div class=\"reveal-up\">\n                    <img decoding=\"async\" src=\"https:\/\/kurtfoundry.com\/wp-content\/uploads\/2026\/04\/custom-gearbox-housing-4.webp\" alt=\"Photograph of a foundry quality control engineer using a Coordinate Measuring Machine probe to verify the internal bore dimensions of a cast iron gearbox housing in a clean inspection laboratory\" class=\"product-img\" loading=\"lazy\" width=\"900\" height=\"600\" title=\"\">\n                <\/div>\n                <div class=\"reveal-up delay-1\">\n                    <h2>Quality Control &#038; CNC Capabilities<\/h2>\n                    <p>We do not guess when it comes to quality. Every batch of metal poured at Kurt Foundry undergoes rigorous testing. We provide fully traceable Material Test Reports (MTRs) with every shipment, giving your procurement team total peace of mind.<\/p>\n                    <ul class=\"gb-checklist\">\n                        <li><strong>CMM Inspection:<\/strong> We use Coordinate Measuring Machines to verify that every CNC-machined bore and flange meets your exact CAD tolerances.<\/li>\n                        <li><strong>Spectrometry:<\/strong> Pre-pour chemical analysis guarantees the correct alloy grade.<\/li>\n                        <li><strong>Mechanical Testing:<\/strong> In-house tensile, yield, and hardness testing confirm the structural integrity of the gear casing.<\/li>\n                        <li><strong>NDT Capabilities:<\/strong> We utilize Ultrasonic Testing (UT) and Magnetic Particle Inspection (MPI) to detect any hidden internal flaws before the housing leaves our facility.<\/li>\n                    <\/ul>\n                    <a href=\"https:\/\/kurtfoundry.com\/contact\/\" class=\"btn btn-dark\" style=\"margin-top: 1rem;\">Contact Our Engineering Team<\/a>\n                <\/div>\n            <\/div>\n        <\/div>\n    <\/section>\n\n    <section class=\"gb-section gb-faq\">\n        <div class=\"gb-container gb-faq-container\">\n            <div class=\"gb-faq-header reveal-up\">\n                <h2>Frequently Asked Questions<\/h2>\n            <\/div>\n            <div class=\"gb-accordion reveal-up delay-1\">\n                <div class=\"gb-accordion-item\">\n                    <button class=\"gb-accordion-btn faq-question\" aria-expanded=\"false\" aria-controls=\"faq-1\">\n                        <span>Why use sand casting instead of aluminum die casting for gearbox housings?<\/span>\n                        <span class=\"gb-accordion-icon\">+<\/span>\n                    <\/button>\n                    <div id=\"faq-1\" class=\"gb-accordion-content\">\n                        <div class=\"gb-accordion-content-inner\">\n                            <p>Aluminum die casting is excellent for small, lightweight, high-volume automotive parts. However, for heavy industrial machinery, aluminum lacks the compressive strength and vibration damping required. Resin sand casting allows us to pour massive, high-strength iron and steel gearboxes weighing anywhere from 50 lbs to 5,000 lbs, which die casting simply cannot handle.<\/p>\n                        <\/div>\n                    <\/div>\n                <\/div>\n                <div class=\"gb-accordion-item\">\n                    <button class=\"gb-accordion-btn faq-question\" aria-expanded=\"false\" aria-controls=\"faq-2\">\n                        <span>Can you machine the gear casings from my existing CAD drawings?<\/span>\n                        <span class=\"gb-accordion-icon\">+<\/span>\n                    <\/button>\n                    <div id=\"faq-2\" class=\"gb-accordion-content\">\n                        <div class=\"gb-accordion-content-inner\">\n                            <p>Yes. We operate a fully integrated facility. You send us your 3D CAD models (STEP or IGES) and 2D PDF drawings. We will cast the raw housing and use our in-house CNC centers to machine all internal bores, tapped holes, and mating surfaces exactly to your print specifications.<\/p>\n                        <\/div>\n                    <\/div>\n                <\/div>\n                <div class=\"gb-accordion-item\">\n                    <button class=\"gb-accordion-btn faq-question\" aria-expanded=\"false\" aria-controls=\"faq-3\">\n                        <span>What is the typical lead time for a custom gearbox housing?<\/span>\n                        <span class=\"gb-accordion-icon\">+<\/span>\n                    <\/button>\n                    <div id=\"faq-3\" class=\"gb-accordion-content\">\n                        <div class=\"gb-accordion-content-inner\">\n                            <p>Lead times depend on the complexity of the core boxes and the overall size of the casting. Generally, initial tooling and first-article prototypes take 4 to 6 weeks. Once the prototype is approved, standard production runs take an additional 4 to 5 weeks.<\/p>\n                        <\/div>\n                    <\/div>\n                <\/div>\n                <div class=\"gb-accordion-item\">\n                    <button class=\"gb-accordion-btn faq-question\" aria-expanded=\"false\" aria-controls=\"faq-4\">\n                        <span>What surface finishes do you offer for cast iron gear cases?<\/span>\n                        <span class=\"gb-accordion-icon\">+<\/span>\n                    <\/button>\n                    <div id=\"faq-4\" class=\"gb-accordion-content\">\n                        <div class=\"gb-accordion-content-inner\">\n                            <p>We provide heavy shot blasting for a clean, uniform raw cast finish. For the machined areas, we routinely hold tight surface roughness tolerances down to Ra0.8 for bearing bores and gasket mating surfaces. We can also apply industrial rust-preventative primers or final powder coatings based on your requirements.<\/p>\n                        <\/div>\n                    <\/div>\n                <\/div>\n                <div class=\"gb-accordion-item\">\n                    <button class=\"gb-accordion-btn faq-question\" aria-expanded=\"false\" aria-controls=\"faq-5\">\n                        <span>How do you prevent porosity in the thick bearing hubs?<\/span>\n                        <span class=\"gb-accordion-icon\">+<\/span>\n                    <\/button>\n                    <div id=\"faq-5\" class=\"gb-accordion-content\">\n                        <div class=\"gb-accordion-content-inner\">\n                            <p>Thick sections, like bearing hubs, cool slower than thin walls, making them prone to shrinkage porosity. We combat this defect by using 3D solidification simulation software to engineer strategic risers that feed molten metal into the hub as it cools. We also place metal chills inside the sand mold to force the thick sections to cool faster, ensuring a dense, solid microstructure.<\/p>\n                        <\/div>\n                    <\/div>\n                <\/div>\n            <\/div>\n        <\/div>\n    <\/section>\n\n    <section class=\"gb-cta\">\n        <div class=\"gb-container\">\n            <div class=\"gb-cta-content reveal-scale\">\n                <h2>Ready to Optimize Your Supply Chain?<\/h2>\n                <p>Stop managing multiple vendors for casting and machining. Send us your CAD files today. Our engineering team will review your gearbox housing designs and provide a highly competitive direct-factory quote within 48 hours.<\/p>\n                <a href=\"https:\/\/kurtfoundry.com\/contact\/\" class=\"btn btn-dark\">Get Your Free Quote Now<\/a>\n            <\/div>\n        <\/div>\n    <\/section>\n\n<\/div>\n\n<script type=\"application\/ld+json\">\n{\n  \"@context\": \"https:\/\/schema.org\/\",\n  \"@type\": \"Product\",\n  \"name\": \"Custom Gearbox Housing Manufacturing & Machining Services\",\n  \"image\": \"PLACEHOLDER_1\",\n  \"description\": \"We engineer and manufacture heavy-duty custom gearbox housings for industrial applications. 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