{"id":13589,"date":"2026-10-10T03:40:36","date_gmt":"2026-10-10T03:40:36","guid":{"rendered":"https:\/\/miningspareparts.com\/en\/product\/ch440-h4800-concave-442-8421-mantle-b-442-7230\/"},"modified":"2026-10-10T07:28:15","modified_gmt":"2026-10-10T07:28:15","slug":"442-8421","status":"publish","type":"product","link":"https:\/\/miningspareparts.com\/ru\/product\/442-8421\/","title":{"rendered":"442.8421 Concave Ring 442.7230 Mantle B for CH440 H4800 Cone Crusher"},"content":{"rendered":"<div class=\"product-page-content\">\n<h2>Product Overview<\/h2>\n<p>Matched wear parts for the <strong>CH440 \/ H4800 cone crusher<\/strong>: the <strong>440 concave (442.8421)<\/strong> and the <strong>B-profile mantle (442.7230)<\/strong>. Both are cast in <strong>M7 high manganese steel<\/strong> and machined on the seating and clamping faces so the cone head and upper frame locate correctly, keeping the closed-side setting and chamber geometry within specification.<\/p>\n<h2>Wear Parts List<\/h2>\n<table style=\"width: 100%; border-collapse: collapse; max-width: 900px;\">\n<thead>\n<tr style=\"background: #1a3a5c; color: #fff;\">\n<th style=\"border: 1px solid #ccc; padding: 8px; text-align: left;\">\u041d\u0435\u0442.<\/th>\n<th style=\"border: 1px solid #ccc; padding: 8px; text-align: left;\">\u041a\u043e\u0434 \u0442\u043e\u0432\u0430\u0440\u0430<\/th>\n<th style=\"border: 1px solid #ccc; padding: 8px; text-align: left;\">\u041d\u0430\u0437\u0432\u0430\u043d\u0438\u0435 \u043f\u0440\u0435\u0434\u043c\u0435\u0442\u0430<\/th>\n<th style=\"border: 1px solid #ccc; padding: 8px; text-align: left;\">\u041e\u043f\u0438\u0441\u0430\u043d\u0438\u0435<\/th>\n<th style=\"border: 1px solid #ccc; padding: 8px; text-align: left;\">\u041c\u0430\u0442\u0435\u0440\u0438\u0430\u043b<\/th>\n<th style=\"border: 1px solid #ccc; padding: 8px; text-align: left;\">\u0412\u0435\u0441 (\u043a\u0433)<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td style=\"border: 1px solid #ccc; padding: 8px;\">1<\/td>\n<td style=\"border: 1px solid #ccc; padding: 8px;\">442.8421<\/td>\n<td style=\"border: 1px solid #ccc; padding: 8px;\">\u0412\u043e\u0433\u043d\u0443\u0442\u044b\u0439<\/td>\n<td style=\"border: 1px solid #ccc; padding: 8px;\">CH440 \/ H4800<\/td>\n<td style=\"border: 1px solid #ccc; padding: 8px;\">M7<\/td>\n<td style=\"border: 1px solid #ccc; padding: 8px;\">870<\/td>\n<\/tr>\n<tr>\n<td style=\"border: 1px solid #ccc; padding: 8px;\">2<\/td>\n<td style=\"border: 1px solid #ccc; padding: 8px;\">442.7230<\/td>\n<td style=\"border: 1px solid #ccc; padding: 8px;\">\u041c\u0430\u043d\u0442\u0438\u044f B<\/td>\n<td style=\"border: 1px solid #ccc; padding: 8px;\">CH440 \/ H4800<\/td>\n<td style=\"border: 1px solid #ccc; padding: 8px;\">M7<\/td>\n<td style=\"border: 1px solid #ccc; padding: 8px;\">618<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>Material and Casting<\/h2>\n<ul>\n<li><strong>M7 high manganese steel<\/strong> \u2014 the M7 grade is a work-hardening austenitic manganese casting (Mn18Cr2 type) that develops a hard wearing surface under load while the core stays tough enough to pass tramp metal. The grade is stamped on each casting for traceability.<\/li>\n<li><strong>Water-glass sand casting<\/strong> with controlled heat treatment for a uniform austenitic structure.<\/li>\n<li><strong>Machined seating and clamping faces<\/strong> so the concave beds down square in the frame and the mantle seats correctly on the cone head.<\/li>\n<li><strong>B-profile cavity geometry<\/strong> matched to the original chamber specification.<\/li>\n<\/ul>\n<h2>\u041f\u0440\u0438\u043b\u043e\u0436\u0435\u043d\u0438\u044f<\/h2>\n<p>Suited to secondary and tertiary crushing of granite, basalt, limestone, river gravel, iron ore and construction and demolition waste. Replacing mantle and concave as a matched set avoids eccentric wear and keeps the setting stable through the wear cycle.<\/p>\n<h2>Request a Quotation<\/h2>\n<p>For pricing and lead time on the CH440 \/ H4800 wear parts (442.8421 concave and 442.7230 mantle B) in M7 material, use the <strong>\u0414\u043e\u0431\u0430\u0432\u0438\u0442\u044c \u0432 \u0437\u0430\u043f\u0440\u043e\u0441<\/strong> button or email <a href=\"mailto:promote@miningspareparts.com\">promote@miningspareparts.com<\/a>.<\/p>\n<\/div>","protected":false},"excerpt":{"rendered":"<ul class=\"auto-hide-last-sibling-br\">\n<li>Product Name: Cone Crusher Wear Parts Set<\/li>\n<li>Part Number: 442.8421 | 442.7230<\/li>\n<li>Accessory Model: CH440 \/ H4800 Cone Crusher<\/li>\n<li>Material: M7 High Manganese Steel<\/li>\n<li>Application: Quarry, Mining, Aggregate, Recycling<\/li>\n<\/ul>","protected":false},"featured_media":13585,"template":"","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}}},"product_brand":[441],"product_cat":[100,36],"product_tag":[789,352,792,790,791,793],"class_list":["post-13589","product","type-product","status-publish","has-post-thumbnail","product_brand-sandvik","product_cat-crusher-liner","product_cat-cone-liner","product_tag-ch440","product_tag-concave","product_tag-cone-crusher-wear-parts","product_tag-h4800","product_tag-mantle-b","product_tag-mn18cr2-concave","desktop-align-left","tablet-align-left","mobile-align-left","ast-product-gallery-layout-horizontal-slider","ast-product-tabs-layout-horizontal","first","instock","shipping-taxable","product-type-simple"],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v28.7 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>442.8421 Concave 442.7230 Mantle B CH440 H4800<\/title>\n<meta name=\"description\" content=\"CH440 \/ H4800 cone crusher wear parts: concave 442.8421 (870 kg) and mantle B 442.7230 (618 kg) in Mn18Cr2 high manganese steel. 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