{"id":20867,"date":"2026-07-14T09:40:00","date_gmt":"2026-07-14T06:40:00","guid":{"rendered":"https:\/\/setmakina.com\/?p=20867"},"modified":"2026-09-02T17:16:44","modified_gmt":"2026-09-02T14:16:44","slug":"scie-a-fil-sur-rails-vs-portique","status":"publish","type":"post","link":"https:\/\/setmakina.com\/fr\/expertise-technique\/scie-a-fil-sur-rails-vs-portique\/","title":{"rendered":"Scie \u00e0 fil sur rails ou \u00e0 portique : quelle machine pour l&#8217;extraction en carri\u00e8re ?"},"content":{"rendered":"\n<!-- ============================================================\n     SET MAKINA \u2014 Article FR : Scie a fil sur rails vs portique\n\n     SYSTEME DE MARQUE (identique a tous les articles) :\n     - Bleu principal : #468dcb\n     - Bleu fonce     : #1a3a5c\n     - Orange CTA     : #FF6600\n     - Texte          : #2d2d2d\n     - Bordures       : #e4e8ed   |   Fond clair : #f4f8fc\n     - Police         : Open Sans (Google Fonts)\n\n     UTILISATION DANS WORDPRESS :\n     Editeur de blocs -> Ajouter un bloc (+) -> HTML personnalise\n     -> coller l integralite du contenu ci-dessous\n     ============================================================ -->\n\n<link rel=\"preconnect\" href=\"https:\/\/fonts.googleapis.com\">\n<link href=\"https:\/\/fonts.googleapis.com\/css2?family=Open+Sans:wght@400;600;700&#038;display=swap\" rel=\"stylesheet\">\n\n<style>\n  \/* \u2500\u2500 All styles scoped to .sm-post to avoid theme conflicts \u2500\u2500 *\/\n\n  .sm-post *,\n  .sm-post *::before,\n  .sm-post *::after { box-sizing: border-box; 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color: #FF6600; font-weight: 700; }\n  .sm-post .sm-related li a {\n    color: #1a3a5c !important;\n    font-weight: 600;\n    border-bottom: none !important;\n  }\n  .sm-post .sm-related li a:hover { color: #468dcb !important; }\n\n  \/* \u2500\u2500 Disclaimer \u2500\u2500 *\/\n  .sm-post .sm-disclaimer {\n    font-size: 12px;\n    color: #aaa;\n    line-height: 1.6;\n    padding: 16px 0 0;\n    border-top: 1px solid #eee;\n    margin-top: 32px;\n  }\n\n  \/* \u2500\u2500 Responsive breakpoints \u2500\u2500 *\/\n  @media (max-width: 680px) {\n    .sm-post h2 { font-size: 19px; }\n    .sm-post .sm-rock-grid { grid-template-columns: 1fr; }\n    .sm-post .sm-product-grid { grid-template-columns: 1fr; }\n    .sm-post .sm-related ul { grid-template-columns: 1fr; }\n    .sm-post .sm-cta { padding: 32px 24px; }\n    .sm-post .sm-cta h3 { font-size: 18px; }\n    .sm-post .sm-factor { flex-direction: column; gap: 12px; }\n    .sm-post .sm-factor-num { width: 36px; height: 36px; }\n  }\n<\/style>\n\n<article class=\"sm-post\">\n\n  <p class=\"sm-lead\">\n    \u00ab&nbsp;Scie \u00e0 fil&nbsp;\u00bb ne d\u00e9signe pas une seule machine. Une scie \u00e0 fil sur rails et une machine \u00e0 portique partagent le m\u00eame principe de coupe \u2014 une boucle de fil diamant\u00e9 entra\u00een\u00e9e par un volant \u2014 mais elles sont construites pour des travaux diff\u00e9rents, et les confondre est une erreur de sp\u00e9cification co\u00fbteuse. Nous voyons encore des listes d&#8217;achat et des appels d&#8217;offres publics qui exigent une machine \u00e0 portique pour l&#8217;extraction primaire dans une carri\u00e8re de granit, un travail pour lequel elle n&#8217;a jamais \u00e9t\u00e9 con\u00e7ue. Ce guide explique comment fonctionne chaque architecture, o\u00f9 chacune trouve sa place, et ce qu&#8217;il faut v\u00e9rifier avant de valider un cahier des charges.\n  <\/p>\n\n  <div class=\"sm-takeaways\">\n    <div class=\"sm-tk-title\">\u00c0 retenir<\/div>\n    <ul>\n      <li>Une <strong>scie \u00e0 fil sur rails<\/strong> recule le long de rails pos\u00e9s au sol pour maintenir la tension du fil sur des coupes longues et profondes. C&#8217;est la machine correcte pour <strong>l&#8217;extraction primaire au front de taille<\/strong>.<\/li>\n      <li>Une <strong>machine \u00e0 portique<\/strong> travaille depuis une structure fixe. Elle convient aux <strong>coupes stationnaires et r\u00e9p\u00e9titives<\/strong>&nbsp;: \u00e9quarrissage des blocs, profilage, travail en parc \u00e0 blocs.<\/li>\n      <li>Au front de taille, un portique ne peut pas suivre la coupe&nbsp;: la g\u00e9om\u00e9trie de tension se d\u00e9grade \u00e0 mesure que la coupe s&#8217;approfondit, et d\u00e9placer la structure d&#8217;un gradin \u00e0 l&#8217;autre est lent et dangereux sur terrain accident\u00e9.<\/li>\n      <li>Pour l&#8217;extraction du granit, les exigences se cumulent&nbsp;: couple soutenu, vitesse de coupe variable et alignement stable sur des coupes de plusieurs heures \u2014 autant de points forts de l&#8217;architecture sur rails.<\/li>\n      <li>Si un appel d&#8217;offres d&#8217;extraction en carri\u00e8re impose une machine \u00e0 portique, c&#8217;est le cahier des charges lui-m\u00eame qui est d\u00e9faillant&nbsp;: soulevez le point avant de soumissionner, pas apr\u00e8s la livraison.<\/li>\n    <\/ul>\n  <\/div>\n\n  <h2><span class=\"sm-num\">01<\/span>Deux machines, deux architectures<\/h2>\n\n  <p>\n    Une <strong>scie \u00e0 fil sur rails<\/strong> repose sur deux rails en acier pos\u00e9s sur le gradin de la carri\u00e8re, approximativement perpendiculaires au plan de coupe. La boucle de fil diamant\u00e9 passe autour du volant d&#8217;entra\u00eenement de la machine et traverse des trous pr\u00e9alablement for\u00e9s dans la roche. \u00c0 mesure que le fil enl\u00e8ve de la mati\u00e8re, la machine recule lentement le long de ses rails, ce qui maintient le fil sous une tension constante et contr\u00f4l\u00e9e sur toute la profondeur de la coupe. La coupe termin\u00e9e, l&#8217;\u00e9quipe repositionne les rails et la machine passe \u00e0 la coupe suivante.\n  <\/p>\n\n  <p>\n    Une <strong>machine \u00e0 portique<\/strong> adopte l&#8217;approche inverse&nbsp;: la structure reste immobile et c&#8217;est la t\u00eate de coupe qui se d\u00e9place. Une poutre \u2014 le portique \u2014 enjambe la zone de travail sur des colonnes ou un ch\u00e2ssis, et le groupe de coupe se d\u00e9place le long de cette poutre. Cette architecture est excellente lorsque c&#8217;est la pi\u00e8ce qui vient \u00e0 la machine&nbsp;: \u00e9quarrissage des blocs pr\u00e8s du parc, recoupe de blocs irr\u00e9guliers aux dimensions transportables, ou profilage en atelier de transformation.\n  <\/p>\n\n  <div class=\"sm-rock-grid\">\n    <div class=\"sm-rock-card marble\">\n      <div class=\"sm-rock-label\">Sur rails<\/div>\n      <h4>La machine suit la coupe<\/h4>\n      <ul>\n        <li><span>Support<\/span><span class=\"val\">Rails pos\u00e9s sur le gradin<\/span><\/li>\n        <li><span>Contr\u00f4le de tension<\/span><span class=\"val\">Recul machine + \u00e9lectronique<\/span><\/li>\n        <li><span>Dimension de coupe<\/span><span class=\"val\">Coupes longues et profondes<\/span><\/li>\n        <li><span>Mobilit\u00e9<\/span><span class=\"val\">Rails repositionn\u00e9s \u00e0 chaque coupe<\/span><\/li>\n        <li><span>Usage optimal<\/span><span class=\"val\">Extraction primaire<\/span><\/li>\n      <\/ul>\n    <\/div>\n    <div class=\"sm-rock-card granite\">\n      <div class=\"sm-rock-label\">\u00c0 portique<\/div>\n      <h4>La coupe vient \u00e0 la machine<\/h4>\n      <ul>\n        <li><span>Support<\/span><span class=\"val\">Poutre fixe \/ ch\u00e2ssis<\/span><\/li>\n        <li><span>Contr\u00f4le de tension<\/span><span class=\"val\">D\u00e9placement de la t\u00eate<\/span><\/li>\n        <li><span>Dimension de coupe<\/span><span class=\"val\">Limit\u00e9e par la port\u00e9e<\/span><\/li>\n        <li><span>Mobilit\u00e9<\/span><span class=\"val\">Pratiquement stationnaire<\/span><\/li>\n        <li><span>Usage optimal<\/span><span class=\"val\">\u00c9quarrissage et profilage<\/span><\/li>\n      <\/ul>\n    <\/div>\n  <\/div>\n\n  <p>\n    Aucune des deux architectures n&#8217;est \u00ab&nbsp;meilleure&nbsp;\u00bb dans l&#8217;absolu. La vraie question est&nbsp;: o\u00f9 la coupe a-t-elle lieu&nbsp;? Dans une <a href=\"https:\/\/setmakina.com\/fr\/carriere-de-marbre\/\" target=\"_blank\" rel=\"noopener\">carri\u00e8re de marbre<\/a> ou une <a href=\"https:\/\/setmakina.com\/fr\/carriere-de-granit\/\" target=\"_blank\" rel=\"noopener\">carri\u00e8re de granit<\/a>, l&#8217;extraction primaire consiste \u00e0 lib\u00e9rer d&#8217;\u00e9normes volumes de roche du massif lui-m\u00eame \u2014 et ce travail impose des contraintes qu&#8217;une structure fixe ne peut pas satisfaire.\n  <\/p>\n\n  <h2><span class=\"sm-num\">02<\/span>Pourquoi l&#8217;extraction en carri\u00e8re exige une scie \u00e0 fil sur rails<\/h2>\n\n  <div class=\"sm-factors\">\n\n    <div class=\"sm-factor\">\n      <div class=\"sm-factor-num\">1<\/div>\n      <div class=\"sm-factor-body\">\n        <h3>La g\u00e9om\u00e9trie de tension sur toute la profondeur de coupe<\/h3>\n        <p>\n          Une coupe de gradin en extraction primaire peut atteindre plusieurs m\u00e8tres de profondeur et de largeur, et demande des heures de coupe continue. C&#8217;est la constance de la tension du fil qui maintient la coupe droite, pr\u00e9serve le fil et stabilise la vitesse d&#8217;avancement. La machine sur rails r\u00e9sout cela m\u00e9caniquement&nbsp;: \u00e0 mesure que le fil p\u00e9n\u00e8tre dans la roche, la machine s&#8217;\u00e9loigne le long de ses rails, si bien que la g\u00e9om\u00e9trie du fil reste pratiquement identique du premier au dernier centim\u00e8tre.\n        <\/p>\n        <p>\n          Une structure \u00e0 portique, elle, ne peut pas reculer. Quand la coupe s&#8217;approfondit, l&#8217;angle et la longueur du fil libre changent en permanence, le contr\u00f4le de tension se d\u00e9grade et le fil se met \u00e0 osciller \u2014 ce qui, dans le granit, signifie une usure acc\u00e9l\u00e9r\u00e9e des perles et un risque croissant de rupture.\n        <\/p>\n      <\/div>\n    <\/div>\n\n    <div class=\"sm-factor\">\n      <div class=\"sm-factor-num\">2<\/div>\n      <div class=\"sm-factor-body\">\n        <h3>La stabilit\u00e9 sur un sol de carri\u00e8re r\u00e9el<\/h3>\n        <p>\n          Un gradin de carri\u00e8re n&#8217;est pas une dalle d&#8217;atelier. C&#8217;est de la roche abattue, irr\u00e9guli\u00e8re et poussi\u00e9reuse. Poser et caler les rails pour chaque coupe fait partie du travail courant de l&#8217;\u00e9quipe.\n        <\/p>\n        <p>\n          \u00c9riger une structure \u00e0 portique avec la m\u00eame pr\u00e9cision sur ce terrain, puis la d\u00e9monter et la remonter \u00e0 chaque coupe, est lent, exigeant en main-d&#8217;\u0153uvre et g\u00e9n\u00e9rateur d&#8217;erreurs d&#8217;alignement qui se retrouvent directement sur la face coup\u00e9e.\n        <\/p>\n      <\/div>\n    <\/div>\n\n    <div class=\"sm-factor\">\n      <div class=\"sm-factor-num\">3<\/div>\n      <div class=\"sm-factor-body\">\n        <h3>La mobilit\u00e9 entre les coupes<\/h3>\n        <p>\n          L&#8217;extraction est r\u00e9p\u00e9titive&nbsp;: coupe verticale, coupe horizontale, d\u00e9placement, puis recommencer \u2014 sur tout le gradin, pendant toute la saison. Une machine sur rails suit le plan de production.\n        <\/p>\n        <p>\n          Une machine \u00e0 portique ancre la production \u00e0 un seul emplacement, ce qui explique pr\u00e9cis\u00e9ment pourquoi sa place naturelle est le parc \u00e0 blocs, o\u00f9 le travail est stationnaire par d\u00e9finition.\n        <\/p>\n      <\/div>\n    <\/div>\n\n    <div class=\"sm-factor\">\n      <div class=\"sm-factor-num\">4<\/div>\n      <div class=\"sm-factor-body\">\n        <h3>Puissance et r\u00e9gulation de vitesse pour la roche dure<\/h3>\n        <p>\n          L&#8217;extraction du granit ajoute une exigence suppl\u00e9mentaire&nbsp;: la cha\u00eene d&#8217;entra\u00eenement. Couper du granit demande un couple soutenu \u00e0 une vitesse p\u00e9riph\u00e9rique adapt\u00e9e \u00e0 la pierre \u2014 g\u00e9n\u00e9ralement 25 \u00e0 40 m\/s, tenue par un moteur pilot\u00e9 par variateur de fr\u00e9quence. Les machines sur rails de qualit\u00e9 carri\u00e8re sont con\u00e7ues exactement pour ce r\u00e9gime de travail.\n        <\/p>\n        <p>\n          Nous d\u00e9taillons cette partie de l&#8217;ing\u00e9nierie dans notre article sur la <a href=\"https:\/\/setmakina.com\/fr\/expertise-technique\/vitesse-coupe-fil-diamante-granit\/\" target=\"_blank\" rel=\"noopener\">vitesse de coupe du fil diamant\u00e9 pour le granit<\/a>.\n        <\/p>\n      <\/div>\n    <\/div>\n\n  <\/div>\n\n  <div class=\"sm-callout sm-callout-warn\">\n    <p><strong>Point de contr\u00f4le avant soumission&nbsp;:<\/strong> si un cahier des charges d&#8217;extraction en carri\u00e8re mentionne une machine \u00e0 portique, une vitesse de coupe fixe, ou une quantit\u00e9 de fil diamant\u00e9 sans sp\u00e9cification de perles, l&#8217;\u00e9tude \u00e0 l&#8217;origine de l&#8217;appel d&#8217;offres a probablement transf\u00e9r\u00e9 des hypoth\u00e8ses d&#8217;atelier de transformation au front de taille.<\/p>\n    <p>Le moment \u00e9conomique pour corriger une sp\u00e9cification, c&#8217;est avant l&#8217;achat des machines. Un cahier des charges d\u00e9faillant se transforme en ann\u00e9es de surconsommation de consommables et de production insuffisante.<\/p>\n  <\/div>\n\n  <h2><span class=\"sm-num\">03<\/span>Sur rails ou \u00e0 portique&nbsp;: comparaison directe<\/h2>\n\n  <div class=\"sm-table-wrap\">\n    <table>\n      <thead>\n        <tr>\n          <th>Crit\u00e8re<\/th>\n          <th>Scie \u00e0 fil sur rails<\/th>\n          <th>Machine \u00e0 portique<\/th>\n        <\/tr>\n      <\/thead>\n      <tbody>\n        <tr>\n          <td>R\u00f4le principal<\/td>\n          <td>Extraction sur gradin, au front de taille<\/td>\n          <td>\u00c9quarrissage, recoupe, profilage des blocs<\/td>\n        <\/tr>\n        <tr>\n          <td>Profondeur et surface de coupe<\/td>\n          <td>Coupes longues et profondes&nbsp;; limit\u00e9es par la longueur du fil, pas par la structure<\/td>\n          <td>Limit\u00e9es par la port\u00e9e de la poutre et la course de la t\u00eate<\/td>\n        <\/tr>\n        <tr>\n          <td>Tension du fil sur coupes profondes<\/td>\n          <td>Constante \u2014 le recul de la machine fige la g\u00e9om\u00e9trie<\/td>\n          <td>Se d\u00e9grade \u00e0 mesure que la g\u00e9om\u00e9trie de coupe change<\/td>\n        <\/tr>\n        <tr>\n          <td>Installation par coupe<\/td>\n          <td>Repose et calage des rails \u2014 t\u00e2che courante de l&#8217;\u00e9quipe<\/td>\n          <td>Remontage et alignement de toute la structure<\/td>\n        <\/tr>\n        <tr>\n          <td>Exigences de sol<\/td>\n          <td>Fonctionne sur gradin pr\u00e9par\u00e9<\/td>\n          <td>N\u00e9cessite une assise stable et quasi horizontale<\/td>\n        <\/tr>\n        <tr>\n          <td>Aptitude \u00e0 l&#8217;extraction du granit<\/td>\n          <td>Con\u00e7ue pour cela<\/td>\n          <td>Non adapt\u00e9e<\/td>\n        <\/tr>\n        <tr>\n          <td>O\u00f9 elle rentabilise son co\u00fbt<\/td>\n          <td>Au front de taille, saison apr\u00e8s saison<\/td>\n          <td>Au parc \u00e0 blocs et \u00e0 l&#8217;atelier<\/td>\n        <\/tr>\n      <\/tbody>\n    <\/table>\n  <\/div>\n\n  <h2><span class=\"sm-num\">04<\/span>Quand une machine \u00e0 portique ou stationnaire est le bon choix<\/h2>\n\n  <p>\n    Soyons clairs&nbsp;: les machines \u00e0 portique et stationnaires ne sont pas inf\u00e9rieures \u2014 elles sont sp\u00e9cialis\u00e9es. Si votre exploitation \u00e9quarrit les blocs pr\u00e8s de la carri\u00e8re, recoupe des blocs irr\u00e9guliers pour gagner du volume transportable, ou fait tourner un parc de transformation, une machine d&#8217;\u00e9quarrissage stationnaire est la r\u00e9ponse productive, et elle s&#8217;associe naturellement \u00e0 une scie sur rails travaillant au front.\n  <\/p>\n\n  <p>\n    Beaucoup de carri\u00e8res bien con\u00e7ues fonctionnent exactement sur cette combinaison&nbsp;: des machines sur rails qui extraient sur le gradin, et une machine stationnaire qui \u00e9quarrit ce qui descend. L&#8217;erreur n&#8217;est pas de poss\u00e9der une machine \u00e0 portique. L&#8217;erreur est de lui confier le travail d&#8217;une machine sur rails \u2014 ou de l&#8217;inscrire dans un appel d&#8217;offres public.\n  <\/p>\n\n  <h2><span class=\"sm-num\">05<\/span>5 questions \u00e0 poser avant de sp\u00e9cifier une scie \u00e0 fil d&#8217;extraction<\/h2>\n\n  <ol class=\"sm-checklist\">\n    <li>\n      <div>\n        <div class=\"sm-q-title\">O\u00f9 la machine va-t-elle couper&nbsp;: au front ou au parc&nbsp;?<\/div>\n        <p class=\"sm-q-text\">Si la r\u00e9ponse est le front de taille, la machine est sur rails. Cette seule question \u00e9limine la majorit\u00e9 des erreurs de sp\u00e9cification avant qu&#8217;elles ne se produisent.<\/p>\n      <\/div>\n    <\/li>\n    <li>\n      <div>\n        <div class=\"sm-q-title\">Comment la machine maintient-elle la tension du fil&nbsp;?<\/div>\n        <p class=\"sm-q-text\">Recherchez un recul contr\u00f4l\u00e9 sur rails, associ\u00e9 \u00e0 une carte \u00e9lectronique de tension avec arr\u00eat automatique en cas de rupture du fil. La gestion de la tension est le premier point de faiblesse des machines bon march\u00e9.<\/p>\n      <\/div>\n    <\/li>\n    <li>\n      <div>\n        <div class=\"sm-q-title\">La vitesse de coupe est-elle variable sur toute la plage&nbsp;?<\/div>\n        <p class=\"sm-q-text\">Pour le granit, exigez une vitesse p\u00e9riph\u00e9rique variable pilot\u00e9e par variateur sur 25\u201340 m\/s. Une transmission \u00e0 vitesse fixe sur du granit constitue en soi une erreur de sp\u00e9cification.<\/p>\n      <\/div>\n    <\/li>\n    <li>\n      <div>\n        <div class=\"sm-q-title\">Le moteur d\u00e9livre-t-il un couple soutenu, et pas seulement une puissance de pointe&nbsp;?<\/div>\n        <p class=\"sm-q-text\">Les coupes d&#8217;extraction durent des heures. Un moteur 6 p\u00f4les \u00e0 fort couple de d\u00e9marrage maintient la pression de coupe sur tout le cycle sans surchauffe.<\/p>\n      <\/div>\n    <\/li>\n    <li>\n      <div>\n        <div class=\"sm-q-title\">Le fil diamant\u00e9 est-il sp\u00e9cifi\u00e9, et pas seulement compt\u00e9 en m\u00e8tres&nbsp;?<\/div>\n        <p class=\"sm-q-text\">Une quantit\u00e9 de fil sans type de perles, duret\u00e9 de liant et concentration en diamant reste une sp\u00e9cification incompl\u00e8te. Le fil doit correspondre \u00e0 la fois \u00e0 la pierre et \u00e0 la plage de vitesse de la machine.<\/p>\n      <\/div>\n    <\/li>\n  <\/ol>\n\n  <p>\n    Les scies \u00e0 fil de carri\u00e8re de Set Makina \u2014 la <a href=\"https:\/\/setmakina.com\/fr\/produits\/tigerfill\/\" target=\"_blank\" rel=\"noopener\">TIGERFILL<\/a> pour le marbre et la <a href=\"https:\/\/setmakina.com\/fr\/produits\/tiger-granfill-2\/\" target=\"_blank\" rel=\"noopener\">TIGER GRANFILL<\/a> pour le granit \u2014 sont des machines sur rails construites autour de cette liste de contr\u00f4le&nbsp;: vitesse pilot\u00e9e par variateur, gestion \u00e9lectronique de la tension et moteurs 6 p\u00f4les de 50 \u00e0 100 HP. Pour l&#8217;ensemble du processus de s\u00e9lection, commencez par notre guide de r\u00e9f\u00e9rence sur le <a href=\"https:\/\/setmakina.com\/fr\/expertise-technique\/scie-fil-diamante-carriere-marbre-granit\/\" target=\"_blank\" rel=\"noopener\">choix d&#8217;une scie \u00e0 fil diamant\u00e9 pour le marbre et le granit<\/a>.\n  <\/p>\n\n  <h2><span class=\"sm-num\">06<\/span>Questions fr\u00e9quentes<\/h2>\n\n  <div class=\"sm-faq\">\n\n    <div class=\"sm-faq-item\">\n      <h3>Quelle est la diff\u00e9rence entre une scie \u00e0 fil sur rails et une machine \u00e0 portique&nbsp;?<\/h3>\n      <p>Une scie \u00e0 fil sur rails recule le long de rails pos\u00e9s au sol pour maintenir le fil diamant\u00e9 sous tension constante pendant les longues coupes de carri\u00e8re. Une machine \u00e0 portique travaille depuis une poutre fixe et ne d\u00e9place que sa t\u00eate de coupe, ce qui convient aux travaux stationnaires comme l&#8217;\u00e9quarrissage et le profilage des blocs.<\/p>\n    <\/div>\n\n    <div class=\"sm-faq-item\">\n      <h3>Peut-on utiliser une machine \u00e0 portique pour l&#8217;extraction en carri\u00e8re&nbsp;?<\/h3>\n      <p>Pas efficacement. Au front de taille, une structure fixe ne peut pas maintenir la g\u00e9om\u00e9trie de tension du fil lorsque la coupe s&#8217;approfondit, elle est difficile \u00e0 \u00e9riger avec pr\u00e9cision sur un gradin irr\u00e9gulier, et elle ne peut pas suivre la production. L&#8217;extraction est le travail de la machine sur rails.<\/p>\n    <\/div>\n\n    <div class=\"sm-faq-item\">\n      <h3>Quel type de scie \u00e0 fil utilise-t-on dans les carri\u00e8res de granit&nbsp;?<\/h3>\n      <p>Des machines sur rails, avec vitesse variable pilot\u00e9e par variateur (25\u201340 m\/s), contr\u00f4le \u00e9lectronique de tension et couple soutenu \u00e9lev\u00e9. La duret\u00e9 du granit rend la stabilit\u00e9 de tension et la vitesse r\u00e9glable encore plus d\u00e9terminantes que dans le marbre.<\/p>\n    <\/div>\n\n    <div class=\"sm-faq-item\">\n      <h3>Quelle est la place d&#8217;une machine \u00e0 portique ou stationnaire dans une carri\u00e8re&nbsp;?<\/h3>\n      <p>Au parc \u00e0 blocs&nbsp;: \u00e9quarrissage, recoupe des pi\u00e8ces irr\u00e9guli\u00e8res aux dimensions transportables, et profilage. De nombreuses carri\u00e8res associent avec profit une machine d&#8217;\u00e9quarrissage stationnaire \u00e0 des scies sur rails travaillant au front de taille.<\/p>\n    <\/div>\n\n  <\/div>\n\n  <div class=\"sm-cta\">\n    <h3>Vous examinez un cahier des charges ou un appel d&#8217;offres&nbsp;?<\/h3>\n    <p>Envoyez-nous les exigences techniques avant de vous engager. Notre \u00e9quipe d&#8217;ing\u00e9nierie vous dira \u2014 sur la base de la physique et de trente ans de pratique en carri\u00e8re \u2014 si les machines sp\u00e9cifi\u00e9es correspondent r\u00e9ellement au travail demand\u00e9.<\/p>\n    <a href=\"https:\/\/setmakina.com\/fr\/contactez-nous\/#action\" target=\"_blank\" rel=\"noopener\">Demander une \u00e9valuation technique<\/a>\n  <\/div>\n\n  <div class=\"sm-footer-meta\">\n    <span>Revue technique&nbsp;: <span class=\"sm-author\">Adnan Sara\u00e7o\u011flu, ing\u00e9nieur des mines (MBA), fondateur de Set Makina<\/span><\/span>\n    <span style=\"color:#ddd;\"> | <\/span>\n    <span class=\"sm-cert\">\n      <svg width=\"12\" height=\"12\" viewBox=\"0 0 24 24\" fill=\"#1a3a5c\"><path d=\"M12 1L3 5v6c0 5.55 3.84 10.74 9 12 5.16-1.26 9-6.45 9-12V5l-9-4z\"\/><\/svg>\n      ISO 9001\n    <\/span>\n    <span class=\"sm-cert\">Marquage CE<\/span>\n    <span class=\"sm-cert\">Certifi\u00e9 ATEX<\/span>\n    <span class=\"sm-cert\">Depuis 1991<\/span>\n  <\/div>\n\n  <div class=\"sm-related\">\n    <div class=\"sm-related-title\">\u00c0 lire \u00e9galement<\/div>\n    <ul>\n      <li><a href=\"https:\/\/setmakina.com\/fr\/expertise-technique\/vitesse-coupe-fil-diamante-granit\/\" target=\"_blank\" rel=\"noopener\">Vitesse de coupe du fil diamant\u00e9 pour le granit<\/a><\/li>\n      <li><a href=\"https:\/\/setmakina.com\/fr\/expertise-technique\/scie-fil-diamante-carriere-marbre-granit\/\" target=\"_blank\" rel=\"noopener\">Choisir une scie \u00e0 fil diamant\u00e9&nbsp;: marbre ou granit<\/a><\/li>\n      <li><a href=\"https:\/\/setmakina.com\/fr\/produits\/tiger-granfill-2\/\" target=\"_blank\" rel=\"noopener\">TIGER GRANFILL \u2014 scie \u00e0 fil pour granit<\/a><\/li>\n      <li><a href=\"https:\/\/setmakina.com\/fr\/produits\/tiger-microfill-2\/\" target=\"_blank\" rel=\"noopener\">TIGER MICROFILL \u2014 \u00e9quarrissage des blocs<\/a><\/li>\n      <li><a href=\"https:\/\/setmakina.com\/fr\/produits\/fil-diamante-outils\/\" target=\"_blank\" rel=\"noopener\">Fil diamant\u00e9 et consommables<\/a><\/li>\n      <li><a href=\"https:\/\/setmakina.com\/fr\/machines-a-scier-le-fil\/\" target=\"_blank\" rel=\"noopener\">Machines \u00e0 scier le fil<\/a><\/li>\n    <\/ul>\n  <\/div>\n\n  <p class=\"sm-disclaimer\">\n    L&#8217;aptitude d&#8217;une machine d\u00e9pend des conditions du site, de la g\u00e9om\u00e9trie des gradins et du plan de production. Les orientations donn\u00e9es dans cet article refl\u00e8tent la pratique g\u00e9n\u00e9rale de l&#8217;ing\u00e9nierie de carri\u00e8re et l&#8217;exp\u00e9rience de terrain de Set Makina&nbsp;; le choix final des \u00e9quipements doit \u00eatre confirm\u00e9 par une \u00e9valuation technique propre au site.\n  <\/p>\n\n<\/article>\n\n","protected":false},"excerpt":{"rendered":"<p>\u00ab&nbsp;Scie \u00e0 fil&nbsp;\u00bb ne d\u00e9signe pas une seule machine. Une scie \u00e0 fil sur rails et une machine \u00e0 portique partagent le m\u00eame principe de coupe \u2014 une boucle de fil diamant\u00e9 entra\u00een\u00e9e par un volant \u2014 mais elles sont construites pour des travaux diff\u00e9rents, et les confondre est une erreur de sp\u00e9cification co\u00fbteuse. Nous&#8230;<\/p>\n","protected":false},"author":2,"featured_media":20620,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"nf_dc_page":"","_kad_blocks_custom_css":"","_kad_blocks_head_custom_js":"","_kad_blocks_body_custom_js":"","_kad_blocks_footer_custom_js":"","_kad_post_transparent":"","_kad_post_title":"","_kad_post_layout":"","_kad_post_sidebar_id":"","_kad_post_content_style":"","_kad_post_vertical_padding":"","_kad_post_feature":"","_kad_post_feature_position":"","_kad_post_header":false,"_kad_post_footer":false,"_kad_post_classname":"","_jetpack_newsletter_access":"","_jetpack_dont_email_post_to_subs":false,"_jetpack_newsletter_tier_id":0,"_jetpack_memberships_contains_paywalled_content":false,"_jetpack_memberships_contains_paid_content":false,"footnotes":""},"categories":[225],"tags":[],"class_list":["post-20867","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-expertise-technique"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v26.0 (Yoast SEO v28.4) - https:\/\/yoast.com\/product\/yoast-seo-premium-wordpress\/ -->\n<title>Scie \u00e0 fil sur rails ou \u00e0 portique | Set Makina<\/title>\n<meta name=\"description\" content=\"Sur rails ou \u00e0 portique : deux architectures, deux m\u00e9tiers. 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