{"id":3496,"date":"2026-03-08T03:26:56","date_gmt":"2026-03-08T03:26:56","guid":{"rendered":"https:\/\/www.railgrindingwheel.com\/?page_id=3496"},"modified":"2026-09-08T13:39:20","modified_gmt":"2026-09-08T13:39:20","slug":"speno-rr24","status":"publish","type":"page","link":"https:\/\/www.railgrindingwheel.com\/de\/schienenschleifbibliothek\/speno-rr24\/","title":{"rendered":"Speno RR24 Schienenschleifmaschine"},"content":{"rendered":"<style>\n.rgw-rr24{--blue:#075ca8;--pale:#f2f6f8;--line:#d4e0e7;--ink:#14344b;--muted:#5d7281;color:var(--ink);font-family:Montserrat,Arial,sans-serif}.rgw-rr24 *{box-sizing:border-box}.rgw-rr24 a{color:var(--blue)}.rgw-shell{width:min(1180px,calc(100% - 36px));margin:auto}.rgw-breadcrumb{padding:16px 0;color:#637887;font-size:13px}.rgw-hero{padding:56px 0;color:#fff;background:linear-gradient(120deg,#061d31,#0a3557 72%,#075ca8)}.rgw-hero-grid{display:grid;grid-template-columns:1fr 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0;color:#607482;font-size:11px}.rgw-aside{position:sticky!important;top:100px!important}.rgw-info,.rgw-rfq{border:1px solid #cad7df;background:#fff}.rgw-info-head{display:flex;align-items:center;justify-content:space-between;padding:14px;background:#eef3f6}.rgw-info-head img{width:95px;height:40px;object-fit:contain}.rgw-info dl{margin:0}.rgw-info dl div{display:grid;grid-template-columns:105px 1fr;gap:8px;padding:10px 13px;border-top:1px solid #e0e7eb;font-size:11px}.rgw-info dd{margin:0;font-weight:700}.rgw-official{display:block;margin:14px;font-size:11px;font-weight:700}.rgw-rfq{margin-top:15px;padding:22px;color:#fff;background:#073b63}.rgw-rfq h3{color:#fff}.rgw-rfq p{color:#c2d5e1;font-size:11px}.rgw-related{padding:54px 0;background:#fff}.rgw-related-grid{display:grid;grid-template-columns:repeat(3,1fr);gap:12px}.rgw-related-grid a{padding:20px;border:1px solid var(--line);text-decoration:none}.rgw-related-grid strong{display:block;font:700 21px \"Roboto Slab\",Georgia,serif}.rgw-related-grid .rgw-library{color:#fff;background:#0b3d5d}@media(max-width:760px){.rgw-hero-grid,.rgw-layout,.rgw-wheel-body{grid-template-columns:1fr!important}.rgw-aside{position:static!important}.rgw-facts,.rgw-gallery,.rgw-process,.rgw-usecases,.rgw-checklist,.rgw-related-grid{grid-template-columns:1fr 1fr}}@media(max-width:600px){.rgw-facts,.rgw-gallery,.rgw-process,.rgw-usecases,.rgw-checklist,.rgw-related-grid,.rgw-wheel-specs{grid-template-columns:1fr}.rgw-spec-row{grid-template-columns:1fr}.rgw-spec-row:first-child{display:none}.rgw-wheel-copy{padding:0 24px 25px}}\n@media(min-width:761px){.rgw-rr24 .rgw-layout{display:grid!important;grid-template-columns:minmax(0,1fr) minmax(220px,30%)!important;gap:24px!important;align-items:start!important}.rgw-rr24 .rgw-main,.rgw-rr24 .rgw-aside{width:auto!important;max-width:none!important;float:none!important}.rgw-rr24 .rgw-main{grid-column:1!important;grid-row:1!important}.rgw-rr24 .rgw-aside{display:block!important;position:sticky!important;top:100px!important;grid-column:2!important;grid-row:1!important}}\n.rgw-rr24 .rgw-rfq .rgw-btn{display:block!important;margin-top:18px!important;color:#103b56!important;background:#fff!important}<\/style>\n<div class=\"rgw-rr24\">\n<div class=\"rgw-shell rgw-breadcrumb\"><a href=\"https:\/\/www.railgrindingwheel.com\/railgrinderlibrary\/\">Grinding Trains Library<\/a> \/ Speno \/ RR24<\/div>\n<section class=\"rgw-hero\">\n<div class=\"rgw-shell rgw-hero-grid\">\n<div>\n<div class=\"rgw-brand\"><img decoding=\"async\" data-src=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2026\/09\/speno-international-official-logo.png\" alt=\"Speno International logo\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" style=\"--smush-placeholder-width: 600px; --smush-placeholder-aspect-ratio: 600\/600;\">Mainline rail grinding<\/div>\n<h1>Speno RR24 Rail Grinder<\/h1>\n<p class=\"rgw-answer\">The Speno RR24 is a 24-stone rail reprofiling train used for preventive and corrective grinding on conventional, heavy-haul and other railway networks. Individual RR24 variants and delivered configurations differ, so fleet-specific documentation remains the controlling reference.<\/p>\n<div class=\"rgw-review\">Last source review: 8 September 2026<\/div>\n<div class=\"rgw-actions\"><a class=\"rgw-btn rgw-btn-primary\" href=\"#specifications\">View specifications<\/a><a class=\"rgw-btn rgw-btn-secondary\" href=\"#wheel-reference\">View grinding wheel<\/a><\/div>\n<\/div>\n<figure class=\"rgw-hero-media\"><img decoding=\"async\" data-src=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2026\/03\/SPENO-RR24-M30.jpg\" alt=\"Speno RR24 M30 rail grinding train\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" style=\"--smush-placeholder-width: 1024px; --smush-placeholder-aspect-ratio: 1024\/683;\"><figcaption>Speno RR24 M30 reference vehicle; suffixes identify particular equipment variants.<\/figcaption><\/figure>\n<\/div>\n<\/section>\n<div class=\"rgw-shell rgw-facts\">\n<div><small>Grinding units<\/small><strong>24<\/strong><\/div>\n<div><small>Wheel reference<\/small><strong>250 \u00d7 78 \u00d7 150 mm<\/strong><\/div>\n<div><small>Process<\/small><strong>Rail reprofiling<\/strong><\/div>\n<div><small>Manufacturer<\/small><strong>Speno<\/strong><\/div>\n<\/div>\n<section class=\"rgw-body\">\n<div class=\"rgw-shell rgw-layout\"><main class=\"rgw-main\"><\/p>\n<nav class=\"rgw-toc\"><strong>On this page<\/strong><a href=\"#overview\">Overview<\/a><a href=\"#gallery\">Gallery<\/a><a href=\"#specifications\">Specifications<\/a><a href=\"#system\">Grinding system<\/a><a href=\"#applications\">Applications<\/a><a href=\"#video\">Video<\/a><a href=\"#wheel-reference\">Wheel product<\/a><a href=\"#faq\">FAQ<\/a><\/nav>\n<section id=\"overview\" class=\"rgw-section\"><span class=\"rgw-kicker\">Model overview<\/span><\/p>\n<h2>What is the Speno RR24?<\/h2>\n<p>RR24 denotes a Speno rail-grinding platform equipped with 24 grinding wheels. Speno lists RR24 M, MB and MC variants in its fleet. The machines undertake preventive or corrective reprofiling and can be configured for the requirements of individual rail networks.<\/p>\n<p class=\"rgw-note\">This entry separates verified platform facts from values that belong to a particular RR24 vehicle. Confirm the complete variant designation and fleet documentation before specifying consumables.<\/p>\n<\/section>\n<section id=\"gallery\" class=\"rgw-section\"><span class=\"rgw-kicker\">Reference photographs<\/span><\/p>\n<h2>Speno RR24 gallery<\/h2>\n<p>All ten images from the original entry are retained.<\/p>\n<div class=\"rgw-gallery\"><a href=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2026\/03\/E100_8579.jpg\"><img decoding=\"async\" data-src=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2026\/03\/E100_8579.jpg\" alt=\"Speno RR24 rail grinder\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" style=\"--smush-placeholder-width: 1024px; --smush-placeholder-aspect-ratio: 1024\/683;\"><\/a><a href=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2026\/03\/SPENO-RR24-M30.jpg\"><img decoding=\"async\" data-src=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2026\/03\/SPENO-RR24-M30.jpg\" alt=\"Speno RR24 M30\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" style=\"--smush-placeholder-width: 1024px; --smush-placeholder-aspect-ratio: 1024\/683;\"><\/a><a href=\"https:\/\/www.railgrindingwheel.com\/wp-content\/smush-webp\/2026\/03\/F123_0650-scaled.jpg.webp\" data-smush-webp-fallback=\"{&quot;href&quot;:&quot;https:\\\/\\\/www.railgrindingwheel.com\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/F123_0650-scaled.jpg&quot;}\"><img decoding=\"async\" data-src=\"https:\/\/www.railgrindingwheel.com\/wp-content\/smush-webp\/2026\/03\/F123_0650-scaled.jpg.webp\" alt=\"Speno RR24 grinding train\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" style=\"--smush-placeholder-width: 1080px; --smush-placeholder-aspect-ratio: 1080\/720;\" data-smush-webp-fallback=\"{&quot;data-src&quot;:&quot;https:\\\/\\\/www.railgrindingwheel.com\\\/wp-content\\\/uploads\\\/2026\\\/03\\\/F123_0650-scaled.jpg&quot;}\"><\/a><a href=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2026\/03\/E106_5755.jpg\"><img decoding=\"async\" data-src=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2026\/03\/E106_5755.jpg\" alt=\"Speno RR24 side view\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" style=\"--smush-placeholder-width: 1024px; --smush-placeholder-aspect-ratio: 1024\/683;\"><\/a><a href=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2026\/03\/E108_6338.jpg\"><img decoding=\"async\" data-src=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2026\/03\/E108_6338.jpg\" alt=\"Speno RR24 equipment\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" style=\"--smush-placeholder-width: 1024px; --smush-placeholder-aspect-ratio: 1024\/683;\"><\/a><a href=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2026\/03\/E108_6336.jpg\"><img decoding=\"async\" data-src=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2026\/03\/E108_6336.jpg\" alt=\"Speno RR24 grinding consist\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" style=\"--smush-placeholder-width: 1024px; --smush-placeholder-aspect-ratio: 1024\/683;\"><\/a><a href=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2026\/03\/E108_6335.jpg\"><img decoding=\"async\" data-src=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2026\/03\/E108_6335.jpg\" alt=\"Speno RR24 rail maintenance vehicle\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" style=\"--smush-placeholder-width: 1024px; --smush-placeholder-aspect-ratio: 1024\/683;\"><\/a><a href=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2026\/03\/E108_6337.jpg\"><img decoding=\"async\" data-src=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2026\/03\/E108_6337.jpg\" alt=\"Speno RR24 grinding car\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" style=\"--smush-placeholder-width: 1024px; --smush-placeholder-aspect-ratio: 1024\/683;\"><\/a><a href=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2026\/03\/E100_8616.jpg\"><img decoding=\"async\" data-src=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2026\/03\/E100_8616.jpg\" alt=\"Speno RR24 in service\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" style=\"--smush-placeholder-width: 1024px; --smush-placeholder-aspect-ratio: 1024\/683;\"><\/a><a href=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2026\/03\/E100_8609.jpg\"><img decoding=\"async\" data-src=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2026\/03\/E100_8609.jpg\" alt=\"Speno RR24 grinding wheel reference\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" style=\"--smush-placeholder-width: 1024px; --smush-placeholder-aspect-ratio: 1024\/683;\"><\/a><\/div>\n<\/section>\n<section id=\"specifications\" class=\"rgw-section\"><span class=\"rgw-kicker\">Technical reference<\/span><\/p>\n<h2>RR24 key specifications<\/h2>\n<p>Only the 24-wheel configuration is treated as a platform-level fact. The remaining values describe published or documented RR24 examples and must be verified for the individual machine.<\/p>\n<div class=\"rgw-spec\">\n<div class=\"rgw-spec-row\"><span>Specification<\/span><span>Reference value<\/span><span>Qualification<\/span><\/div>\n<div class=\"rgw-spec-row\"><b>Grinding units<\/b><span>24<\/span><span>RR24 designation<\/span><\/div>\n<div class=\"rgw-spec-row\"><b>Arrangement<\/b><span>Three grinding cars; eight units per car<\/span><span>Documented RR24 example<\/span><\/div>\n<div class=\"rgw-spec-row\"><b>Working speed<\/b><span>About 5 km\/h<\/span><span>RR24M-30A reference; programme dependent<\/span><\/div>\n<div class=\"rgw-spec-row\"><b>Travel speed<\/b><span>Up to 50 km\/h<\/span><span>RR24M-30A reference<\/span><\/div>\n<div class=\"rgw-spec-row\"><b>Length<\/b><span>About 51 m<\/span><span>RR24M-30A reference<\/span><\/div>\n<div class=\"rgw-spec-row\"><b>Width \/ height<\/b><span>2.8 \/ 3.95 m<\/span><span>RR24M-30A reference<\/span><\/div>\n<div class=\"rgw-spec-row\"><b>Minimum curve radius<\/b><span>90 m<\/span><span>RR24M-30A reference<\/span><\/div>\n<div class=\"rgw-spec-row\"><b>Maximum gradient<\/b><span>4%<\/span><span>RR24M-30A reference<\/span><\/div>\n<\/div>\n<div class=\"rgw-source-line\">Sources: <a href=\"https:\/\/speno.ch\/en\/machines-en\/\">Speno machine range<\/a> and RR24M-30A fleet reference listed below.<\/div>\n<\/section>\n<section id=\"system\" class=\"rgw-section\"><span class=\"rgw-kicker\">Operating principle<\/span><\/p>\n<h2>How the RR24 grinding system works<\/h2>\n<div class=\"rgw-process\">\n<div>\n<h3>Survey<\/h3>\n<p>Rail condition and target profiles define preventive or corrective treatment.<\/p>\n<\/div>\n<div>\n<h3>Plan<\/h3>\n<p>The grinding programme assigns wheel angles, pressure and passes.<\/p>\n<\/div>\n<div>\n<h3>Reprofile<\/h3>\n<p>Twenty-four abrasive units remove controlled material across both rail heads.<\/p>\n<\/div>\n<div>\n<h3>Verify<\/h3>\n<p>Post-work measurements check the achieved longitudinal and transverse profile.<\/p>\n<\/div>\n<\/div>\n<\/section>\n<section id=\"applications\" class=\"rgw-section\"><span class=\"rgw-kicker\">Use cases<\/span><\/p>\n<h2>Typical RR24 applications<\/h2>\n<div class=\"rgw-usecases\">\n<div><strong>Mainline reprofiling<\/strong><\/p>\n<p>Preventive and corrective treatment of open track.<\/p>\n<\/div>\n<div><strong>Heavy-haul routes<\/strong><\/p>\n<p>Profile management under demanding traffic conditions.<\/p>\n<\/div>\n<div><strong>Surface-defect control<\/strong><\/p>\n<p>Treatment programmes for corrugation and rolling-contact damage.<\/p>\n<\/div>\n<div><strong>Network-specific work<\/strong><\/p>\n<p>Delivered variants may address tunnels, switches or environmental requirements.<\/p>\n<\/div>\n<\/div>\n<\/section>\n<section id=\"video\" class=\"rgw-section\"><span class=\"rgw-kicker\">Video reference<\/span><\/p>\n<h2>Speno RR24 video<\/h2>\n<p>The original RR24 video is retained as an operating reference.<\/p>\n<p><a class=\"rgw-video\" href=\"https:\/\/www.youtube.com\/watch?v=bEP4zCW0sAQ\"><img decoding=\"async\" data-src=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2026\/03\/SPENO-RR24-M30.jpg\" alt=\"Speno RR24 video preview\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" style=\"--smush-placeholder-width: 1024px; --smush-placeholder-aspect-ratio: 1024\/683;\"><span>Watch the Speno RR24 video<\/span><\/a><\/section>\n<section id=\"wheel-reference\" class=\"rgw-wheel\">\n<header class=\"rgw-wheel-intro\"><span class=\"rgw-kicker\">Grinding wheel reference<\/span><\/p>\n<h2>250 \u00d7 78 \u00d7 150 mm rail grinding wheel<\/h2>\n<p>This resin-bonded zirconia-alumina wheel is listed for selected Speno RR24 configurations. Confirm the installed grinding unit, complete dimensions, speed rating and approved drawing before ordering.<\/p>\n<\/header>\n<div class=\"rgw-wheel-body\">\n<figure class=\"rgw-wheel-photo\"><img decoding=\"async\" data-src=\"https:\/\/www.railgrindingwheel.com\/wp-content\/smush-webp\/2026\/09\/speno-rr24-250x78x150-grinding-wheel-scaled.png.webp\" alt=\"250 x 78 x 150 mm Speno RR24 rail grinding wheel\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" style=\"--smush-placeholder-width: 810px; --smush-placeholder-aspect-ratio: 810\/1080;\" data-smush-webp-fallback=\"{&quot;data-src&quot;:&quot;https:\\\/\\\/www.railgrindingwheel.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/speno-rr24-250x78x150-grinding-wheel-scaled.png&quot;}\"><\/figure>\n<div class=\"rgw-wheel-copy\">\n<dl class=\"rgw-wheel-specs\">\n<div>\n<dt>Dimensions<\/dt>\n<dd>250 \u00d7 78 \u00d7 150 mm<\/dd>\n<\/div>\n<div>\n<dt>Abrasive<\/dt>\n<dd>Zirconia alumina<\/dd>\n<\/div>\n<div>\n<dt>Bond<\/dt>\n<dd>Resin bond<\/dd>\n<\/div>\n<div>\n<dt>Maximum speed<\/dt>\n<dd>50 m\/s<\/dd>\n<\/div>\n<\/dl>\n<div class=\"rgw-caution\">Reference product only. Verify the existing wheel marking, mounting geometry, maximum RPM, grinding-unit configuration and approved drawing.<\/div>\n<div class=\"rgw-actions\"><a class=\"rgw-btn rgw-btn-primary\" href=\"https:\/\/www.railgrindingwheel.com\/rail-grinding-train-wheel\/250x78x150\/\">View complete product details<\/a><a class=\"rgw-btn rgw-btn-secondary\" href=\"https:\/\/www.railgrindingwheel.com\/contactus\/\">Request specification review<\/a><\/div>\n<\/div>\n<\/div>\n<\/section>\n<section class=\"rgw-section\"><span class=\"rgw-kicker\">RFQ checklist<\/span><\/p>\n<h2>Information required before ordering<\/h2>\n<div class=\"rgw-checklist\">\n<div>01 \u00b7 Complete RR24 variant and fleet number<\/div>\n<div>02 \u00b7 Existing wheel marking and dimensions<\/div>\n<div>03 \u00b7 Bore and mounting geometry<\/div>\n<div>04 \u00b7 Maximum RPM and grinding-unit position<\/div>\n<div>05 \u00b7 Rail condition and grinding programme<\/div>\n<div>06 \u00b7 Quantity, destination and delivery date<\/div>\n<\/div>\n<\/section>\n<section id=\"faq\" class=\"rgw-section rgw-faq\"><span class=\"rgw-kicker\">Buyer questions<\/span><\/p>\n<h2>Speno RR24 FAQ<\/h2>\n<details>\n<summary>What is the Speno RR24?<\/summary>\n<p>It is a Speno rail reprofiling train equipped with 24 grinding wheels.<\/p>\n<\/details>\n<details>\n<summary>Are all RR24 machines identical?<\/summary>\n<p>No. RR24 M, MB and MC suffixes identify different variants and equipment arrangements.<\/p>\n<\/details>\n<details>\n<summary>What wheel is referenced for the RR24?<\/summary>\n<p>This page references a 250 \u00d7 78 \u00d7 150 mm resin-bonded zirconia-alumina wheel for selected configurations.<\/p>\n<\/details>\n<details>\n<summary>Does the model name confirm wheel compatibility?<\/summary>\n<p>No. Check the installed unit, existing wheel marking, mounting, RPM and approved drawing.<\/p>\n<\/details>\n<\/section>\n<section class=\"rgw-references\">\n<h2>References<\/h2>\n<ol>\n<li><a href=\"https:\/\/speno.ch\/en\/machines-en\/\">Speno International machine range<\/a> \u2014 manufacturer model and application overview.<\/li>\n<li><a href=\"https:\/\/www.yumpu.com\/en\/document\/view\/39875272\/rail-grinder-fact-sheet-kiwirail\">KiwiRail RR24M-30A fact sheet<\/a> \u2014 fleet-specific reference values.<\/li>\n<li><a href=\"https:\/\/www.youtube.com\/watch?v=bEP4zCW0sAQ\">Speno RR24 video<\/a> \u2014 original page video.<\/li>\n<li><a href=\"https:\/\/www.railgrindingwheel.com\/rail-grinding-train-wheel\/250x78x150\/\">250 \u00d7 78 \u00d7 150 mm product page<\/a> \u2014 product details and enquiry information.<\/li>\n<\/ol>\n<\/section>\n<p><\/main><\/p>\n<aside class=\"rgw-aside\">\n<div class=\"rgw-info\">\n<div class=\"rgw-info-head\"><img decoding=\"async\" data-src=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2026\/09\/speno-international-official-logo.png\" alt=\"Speno International\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" style=\"--smush-placeholder-width: 600px; --smush-placeholder-aspect-ratio: 600\/600;\"><span>RR Series<\/span><\/div>\n<dl>\n<div>\n<dt>Manufacturer<\/dt>\n<dd>Speno International<\/dd>\n<\/div>\n<div>\n<dt>Model<\/dt>\n<dd>RR24 Series<\/dd>\n<\/div>\n<div>\n<dt>Type<\/dt>\n<dd>Rail reprofiling train<\/dd>\n<\/div>\n<div>\n<dt>Technology<\/dt>\n<dd>Rotary abrasive grinding<\/dd>\n<\/div>\n<div>\n<dt>Grinding units<\/dt>\n<dd>24<\/dd>\n<\/div>\n<div>\n<dt>Wheel reference<\/dt>\n<dd>250 \u00d7 78 \u00d7 150 mm<\/dd>\n<\/div>\n<\/dl>\n<p><a class=\"rgw-official\" href=\"https:\/\/speno.ch\/en\/machines-en\/\">Official manufacturer source \u2197<\/a><\/div>\n<div class=\"rgw-rfq\"><span class=\"rgw-kicker\">Compatibility review<\/span><\/p>\n<h3>Have an RR24 wheel to identify?<\/h3>\n<p>Send its marking, dimensions, mounting data, RPM and quantity.<\/p>\n<p><a class=\"rgw-btn\" href=\"https:\/\/www.railgrindingwheel.com\/contactus\/\">Prepare an RFQ \u2192<\/a><\/div>\n<\/aside>\n<\/div>\n<\/section>\n<section class=\"rgw-related\">\n<div class=\"rgw-shell\">\n<h2>Continue exploring<\/h2>\n<div class=\"rgw-related-grid\"><a href=\"https:\/\/www.railgrindingwheel.com\/rail-grinding-train-wheel\/250x78x150\/\"><small>Grinding wheel<\/small><strong>250 \u00d7 78 \u00d7 150 mm<\/strong><\/a><a href=\"https:\/\/www.railgrindingwheel.com\/railgrinderlibrary\/speno-srr16m-1\/\"><small>Related model<\/small><strong>Speno SRR16M-1<\/strong><\/a><a class=\"rgw-library\" href=\"https:\/\/www.railgrindingwheel.com\/railgrinderlibrary\/\"><small>Model encyclopedia<\/small><strong>Grinding Trains Library<\/strong><\/a><\/div>\n<\/div>\n<\/section>\n<\/div>\n<p><script type=\"application\/ld+json\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"TechArticle\",\"headline\":\"Speno RR24 Rail Grinder\",\"description\":\"Speno RR24 model overview, reference specifications, applications and 250 \u00d7 78 \u00d7 150 mm grinding-wheel selection points.\",\"image\":\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2026\/03\/SPENO-RR24-M30.jpg\",\"datePublished\":\"2026-03-08\",\"dateModified\":\"2026-09-08\",\"author\":{\"@type\":\"Organization\",\"name\":\"Jumbo Abrasives\"},\"publisher\":{\"@type\":\"Organization\",\"name\":\"Jumbo Abrasives\",\"url\":\"https:\/\/www.railgrindingwheel.com\/\"},\"mainEntityOfPage\":\"https:\/\/www.railgrindingwheel.com\/railgrinderlibrary\/speno-rr24\/\"},{\"@type\":\"FAQPage\",\"mainEntity\":[{\"@type\":\"Question\",\"name\":\"What is the Speno RR24?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"It is a Speno rail reprofiling train equipped with 24 grinding wheels.\"}},{\"@type\":\"Question\",\"name\":\"Are all RR24 machines identical?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. RR24 M, MB and MC suffixes identify different variants and equipment arrangements.\"}},{\"@type\":\"Question\",\"name\":\"What wheel is referenced for the RR24?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"This page references a 250 \u00d7 78 \u00d7 150 mm resin-bonded zirconia-alumina wheel for selected configurations.\"}},{\"@type\":\"Question\",\"name\":\"Does the model name confirm wheel compatibility?\",\"acceptedAnswer\":{\"@type\":\"Answer\",\"text\":\"No. Check the installed unit, existing wheel marking, mounting, RPM and approved drawing.\"}}]}]}<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>Grinding Trains Library \/ Speno \/ RR24 Mainline rail grinding Speno RR24 Rail Grinder The Speno RR24 is a 24-stone rail reprofiling train used for preventive and corrective grinding on conventional, heavy-haul and other railway networks. Individual RR24 variants and delivered configurations differ, so fleet-specific documentation remains the controlling reference. Last source review: 8 September [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":3507,"parent":1438,"menu_order":0,"comment_status":"closed","ping_status":"closed","template":"","meta":{"_monsterinsights_skip_tracking":false,"_monsterinsights_sitenote_active":false,"_monsterinsights_sitenote_note":"","_monsterinsights_sitenote_category":0,"site-sidebar-layout":"no-sidebar","site-content-layout":"page-builder","ast-site-content-layout":"full-width-container","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":"disabled","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","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":"","background-image":"","background-repeat":"repeat","background-position":"center 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with the Yoast SEO Premium plugin v25.9 (Yoast SEO v25.9) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>Speno RR24 Rail Grinder | Rail Grinder Library<\/title>\n<meta name=\"description\" content=\"Discover theSPENO RR24 rail grinder: review its technical specs, and watch videos and photos of its precision grinding in action.\" \/>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.railgrindingwheel.com\/de\/schienenschleifbibliothek\/speno-rr24\/\" \/>\n<meta property=\"og:locale\" content=\"de_DE\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Speno RR24 Rail Grinder\" \/>\n<meta property=\"og:description\" content=\"Rail Grinding Wheel manufacturer since 1996, for Loram, Harsco, Speno, Vossloh, and GEMAC rail grinders.\" \/>\n<meta property=\"og:url\" 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