{"id":6751,"date":"2021-12-16T12:32:48","date_gmt":"2021-12-16T04:32:48","guid":{"rendered":"https:\/\/xzfastener.com\/?p=6751"},"modified":"2026-06-22T12:34:30","modified_gmt":"2026-06-22T04:34:30","slug":"fasteners-for-mining-equipment-high-strength-and-wear-resistant-options","status":"publish","type":"post","link":"https:\/\/xzfastener.com\/fr\/fasteners-for-mining-equipment-high-strength-and-wear-resistant-options\/","title":{"rendered":"Fixations pour \u00e9quipements miniers\u00a0: options \u00e0 haute r\u00e9sistance et \u00e0 l'usure"},"content":{"rendered":"<p>Mining equipment is hard on fasteners. Bolts, nuts, washers, studs, and special fasteners work under vibration, impact, dust, slurry, moisture, and abrasive material flow. A standard bolt may look strong enough on paper, but in a crusher, screen, conveyor, bucket, chute, or mill liner, the working condition is far from ordinary.<\/p>\n\n\n\n<p>For buyers, the right question is not only \u201cWhat grade do we need?\u201d It is also \u201cWhere is the fastener installed, what load does it carry, and how much wear will it see?\u201d<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Why Mining Fasteners Fail<\/h2>\n\n\n\n<p>Mining fasteners usually fail for a few repeated reasons. The part may be underspecified, installed incorrectly, or exposed to wear that was not considered at the RFQ stage.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Field Condition<\/th><th>Risque commun<\/th><th>Ch\u00e8que de l'acheteur<\/th><\/tr><\/thead><tbody><tr><td>Heavy vibration<\/td><td>Nut loosening, preload loss<\/td><td>M\u00e9thode de verrouillage et contr\u00f4le du serrage<\/td><\/tr><tr><td>Charge d'impact<\/td><td>Bolt fracture or thread damage<\/td><td>Grade, toughness, washer support<\/td><\/tr><tr><td>Abrasive material flow<\/td><td>Head wear, coating loss<\/td><td>Head design and wear exposure<\/td><\/tr><tr><td>Wet ore or slurry<\/td><td>Corrosion and thread seizure<\/td><td>Coating or stainless option<\/td><\/tr><tr><td>Entretien r\u00e9p\u00e9t\u00e9<\/td><td>Damaged threads and worn nuts<\/td><td>Replacement rules and spare stock<\/td><\/tr><tr><td>Charge de serrage \u00e9lev\u00e9e<\/td><td>Washer embedment<\/td><td>Hardened washer requirement<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>For load-bearing mining assemblies, buyers should review <a href=\"https:\/\/xzfastener.com\/fr\/products-category\/high-strength-fasteners\/\">attaches \u00e0 haute r\u00e9sistance<\/a> before choosing grade and nut matching.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">High-Strength Fastener Options<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Grade Selection<\/h3>\n\n\n\n<p>Mining equipment often uses high-strength carbon steel or alloy steel fasteners. Common metric grades include 8.8, 10.9, and 12.9. The higher the grade, the stronger the bolt, but also the more important the installation control becomes.<\/p>\n\n\n\n<p>Class 10.9 is often practical for heavy equipment frames, crusher guards, brackets, and structural equipment connections. Class 12.9 may be used in compact high-load joints, but it should not be selected casually. It needs correct washers, torque control, coating review, and inspection records.<\/p>\n\n\n\n<p>For inch-based equipment, ASTM or project-specified grades may be required. Buyers should follow the equipment manual or project drawing.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Correspondance des \u00e9crous et des rondelles<\/h3>\n\n\n\n<p>A high-strength bolt with a weak nut is not a high-strength assembly. Mining joints should be specified as complete sets where possible.<\/p>\n\n\n\n<p>Confirmez\u00a0:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Qualit\u00e9 du boulon<\/li>\n\n\n\n<li>Qualit\u00e9 des noix<\/li>\n\n\n\n<li>Duret\u00e9 de la rondelle<\/li>\n\n\n\n<li>Pas de filetage<\/li>\n\n\n\n<li>Compatibilit\u00e9 des rev\u00eatements<\/li>\n\n\n\n<li>Exigence de couple ou de pr\u00e9charge<\/li>\n\n\n\n<li>Anti-loosening method<\/li>\n<\/ul>\n\n\n\n<p>Pour une planification compl\u00e8te du produit, les acheteurs peuvent consulter l'int\u00e9gralit\u00e9 <a href=\"https:\/\/xzfastener.com\/fr\/home\/products\/\">produits de fixation<\/a> gamme.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Wear-Resistant Fastener Design<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Exposed Heads Need Special Attention<\/h3>\n\n\n\n<p>In mining equipment, some fasteners are directly exposed to ore, stone, coal, sand, or slurry. In these locations, head wear may be a bigger issue than tensile strength.<\/p>\n\n\n\n<p>Examples include liner bolts, plow bolts, bucket-related bolts, chute fasteners, and screen assembly hardware.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Fastener Option<\/th><th>Utilisation typique<\/th><th>Point de s\u00e9lection cl\u00e9<\/th><\/tr><\/thead><tbody><tr><td>Liner bolts<\/td><td>Mill liners, crusher liners, chute liners<\/td><td>Head profile and wear exposure<\/td><\/tr><tr><td>Plow bolts<\/td><td>Buckets, blades, wear plates<\/td><td>Countersunk head seating<\/td><\/tr><tr><td>Track bolts<\/td><td>Tracked machinery<\/td><td>Strength, thread fit, impact resistance<\/td><\/tr><tr><td>Boulons hexagonaux lourds<\/td><td>Frames and structural equipment<\/td><td>Grade and washer matching<\/td><\/tr><tr><td>Custom head bolts<\/td><td>Special liners or wear parts<\/td><td>Drawing and sample approval<\/td><\/tr><tr><td>Rondelles tremp\u00e9es<\/td><td>High-preload joints<\/td><td>Emp\u00eache l'encastrement et la perte de pr\u00e9charge<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>For special head shapes or drawing-based parts, use <a href=\"https:\/\/xzfastener.com\/fr\/products-category\/custom-non-standard-fasteners\/\">fixations non standard sur mesure<\/a> and provide drawings or used samples.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Rev\u00eatement et protection contre la corrosion<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\">Wear Can Remove Coating<\/h3>\n\n\n\n<p>Coating helps against corrosion, but it does not make a fastener wear-proof. In abrasive zones, coating may be damaged quickly. In protected zones, coating can still be very useful.<\/p>\n\n\n\n<p>Common options include zinc plating, hot-dip galvanizing, zinc flake, black oxide with oil, and other project-specified coatings.<\/p>\n\n\n\n<p>For wet mining, outdoor storage, underground equipment, or slurry contact, compare <a href=\"https:\/\/xzfastener.com\/fr\/products-category\/various-coated-fasteners\/\">diverses attaches enduites<\/a> avant de confirmer la finition.<\/p>\n\n\n\n<p>Coating selection should consider:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Exposition \u00e0 la corrosion<\/li>\n\n\n\n<li>Ajustement du filetage apr\u00e8s rev\u00eatement<\/li>\n\n\n\n<li>Torque and friction behavior<\/li>\n\n\n\n<li>Hydrogen embrittlement risk for high-strength electroplated parts<\/li>\n\n\n\n<li>Packing protection before shipment<\/li>\n<\/ol>\n\n\n\n<h2 class=\"wp-block-heading\">Anti-Loosening Requirements<\/h2>\n\n\n\n<p>Mining equipment vibrates constantly. Crushers, screens, conveyors, drills, and feeders can loosen poorly assembled fasteners quickly.<\/p>\n\n\n\n<p>Anti-loosening selection may include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Contre-\u00e9crous enti\u00e8rement m\u00e9talliques<\/li>\n\n\n\n<li>Rondelles de blocage<\/li>\n\n\n\n<li>Rondelles plates tremp\u00e9es<\/li>\n\n\n\n<li>Adh\u00e9sif frein-filet<\/li>\n\n\n\n<li>Double-nut systems<\/li>\n\n\n\n<li>Special locking plates<\/li>\n\n\n\n<li>Correct tightening sequence<\/li>\n<\/ul>\n\n\n\n<p>Do not rely on a spring washer alone for severe vibration unless the equipment design allows it.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">RFQ Checklist for Mining Equipment Fasteners<\/h2>\n\n\n\n<p>Une demande de prix claire doit inclure\u00a0:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Article de la demande de prix<\/th><th>Que pr\u00e9ciser<\/th><\/tr><\/thead><tbody><tr><td>Equipment<\/td><td>Crusher, conveyor, screen, bucket, mill, drill, feeder<\/td><\/tr><tr><td>Type de produit<\/td><td>Bolt, nut, washer, stud, liner bolt, plow bolt<\/td><\/tr><tr><td>Norme<\/td><td>DIN, ISO, ASTM, ASME, or drawing<\/td><\/tr><tr><td>Taille<\/td><td>Diam\u00e8tre, longueur, pas, longueur de filetage<\/td><\/tr><tr><td>Note<\/td><td>8.8, 10.9, 12.9, ASTM grade, or project grade<\/td><\/tr><tr><td>Mat\u00e9riel<\/td><td>Carbon steel, alloy steel, stainless, special material<\/td><\/tr><tr><td>Terminer<\/td><td>Plain, black, zinc, HDG, zinc flake, special coating<\/td><\/tr><tr><td>\u00c9tat de charge<\/td><td>Impact, vibration, shear, tension, abrasion<\/td><\/tr><tr><td>Assembl\u00e9e<\/td><td>\u00c9crous, rondelles, pi\u00e8ces de verrouillage, exigence de couple<\/td><\/tr><tr><td>Documents<\/td><td>MTC, hardness, tensile, coating report, inspection report<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p>For regular items, buyers can start from <a href=\"https:\/\/xzfastener.com\/fr\/products-category\/standard-fasteners\/\">attaches standards<\/a> and then upgrade grade, coating, or design based on the equipment condition.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Conseil final<\/h2>\n\n\n\n<p>Fasteners for mining equipment must be selected by load, vibration, wear exposure, corrosion risk, and maintenance frequency. High strength is important, but it is only one part of the decision.<\/p>\n\n\n\n<p>The safest approach is to define the full assembly before production: material, grade, head design, nut, washer, coating, torque, locking method, documents, and spare part strategy. That reduces loosening, broken bolts, worn heads, and unplanned downtime.<\/p>","protected":false},"excerpt":{"rendered":"<p>Mining equipment is hard on fasteners. Bolts, nuts, washers, studs, and special fasteners work under vibration, impact, dust, slurry, moisture, and abrasive material flow. A standard bolt may look strong enough on paper, but in a crusher, screen, conveyor, bucket, chute, or mill liner, the working condition is far from ordinary. For buyers, the right [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[479],"tags":[501],"class_list":["post-6751","post","type-post","status-publish","format-standard","hentry","category-fastener-knowledge-library","tag-fastener-types-applications"],"acf":[],"_links":{"self":[{"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/posts\/6751","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/comments?post=6751"}],"version-history":[{"count":1,"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/posts\/6751\/revisions"}],"predecessor-version":[{"id":6752,"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/posts\/6751\/revisions\/6752"}],"wp:attachment":[{"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/media?parent=6751"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/categories?post=6751"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/xzfastener.com\/fr\/wp-json\/wp\/v2\/tags?post=6751"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}