{"id":5990,"date":"2026-09-17T02:45:20","date_gmt":"2026-09-17T02:45:20","guid":{"rendered":"https:\/\/www.railgrindingwheel.com\/?page_id=5990"},"modified":"2026-10-29T07:46:56","modified_gmt":"2026-10-29T07:46:56","slug":"speno-rr48m","status":"publish","type":"page","link":"https:\/\/www.railgrindingwheel.com\/fr\/speno-rr48m\/","title":{"rendered":"Train de meulage de rails SPENO RR 48 M"},"content":{"rendered":"<style>\n.rgw-rr48m{--navy:#082b46;--blue:#075ca8;--pale:#f2f6f8;--line:#d4e0e7;--ink:#14344b;--muted:#5d7281;color:var(--ink);font-family:Montserrat,Arial,sans-serif}.rgw-rr48m *{box-sizing:border-box}.rgw-rr48m 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-breadcrumb a{text-decoration:none}.rgw-hero{padding:56px 0;background:linear-gradient(120deg,#eef4f7,#fff)}.rgw-hero-grid{display:grid;grid-template-columns:1fr 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div:nth-child(2){border-right:0}.rgw-gallery{grid-template-columns:1fr 1fr}}@media(max-width:600px){.rgw-shell{width:min(100% - 24px,1180px)}.rgw-hero{padding:38px 0}.rgw-rr48m h1{font-size:42px}.rgw-facts,.rgw-process,.rgw-usecases,.rgw-gallery,.rgw-wheel-body,.rgw-wheel-specs,.rgw-checklist,.rgw-related-grid{grid-template-columns:1fr}.rgw-facts div{border-right:0;border-bottom:1px solid var(--line)}.rgw-spec-row{grid-template-columns:1fr;gap:4px}.rgw-spec-row:first-child{display:none}.rgw-wheel-intro{padding:24px}.rgw-wheel-photo{width:calc(100% - 48px);max-width:420px;margin:24px auto}.rgw-wheel-copy{padding:0 24px 25px}.rgw-wheel-specs div:nth-child(odd){border-right:0}.rgw-actions .rgw-btn{width:100%;text-align:center}}\n.rgw-layout{grid-template-columns:minmax(0,1fr) minmax(260px,31%);gap:32px}@media(max-width:900px){.rgw-layout{grid-template-columns:minmax(0,1fr) minmax(260px,32%)}.rgw-aside{position:sticky}}@media(max-width:760px){.rgw-layout{grid-template-columns:1fr}.rgw-aside{position:static}}\n@media(min-width:601px){.rgw-rr48m .rgw-layout{display:grid!important;grid-template-columns:minmax(0,1fr) minmax(220px,30%)!important;gap:24px!important;align-items:start!important}.rgw-rr48m .rgw-main,.rgw-rr48m .rgw-aside{width:auto!important;max-width:none!important;float:none!important}.rgw-rr48m .rgw-aside{position:sticky!important;top:100px!important;grid-column:2!important;grid-row:1!important}}\n.rgw-rr48m .rgw-hero{color:#fff!important;background:linear-gradient(120deg,#061d31,#0a3557 72%,#075ca8)!important}.rgw-rr48m .rgw-brand{color:#8fcdf4!important}.rgw-rr48m .rgw-brand img{width:118px!important;height:48px!important;padding:8px!important;border-radius:4px!important;background:#fff!important;object-fit:contain!important}.rgw-rr48m .rgw-hero h1{color:#fff!important}.rgw-rr48m .rgw-answer{color:#d6e4ee!important}.rgw-rr48m .rgw-review{color:#9fc0d5!important}.rgw-rr48m .rgw-btn-primary{border-color:#ec6a19!important;color:#fff!important;background:#ec6a19!important}.rgw-rr48m .rgw-btn-secondary{border-color:#ffffff62!important;color:#fff!important;background:#ffffff0b!important}.rgw-rr48m .rgw-hero-media{position:relative!important;overflow:hidden!important;border:1px solid #ffffff2b!important;background:#0b2b43!important;box-shadow:0 24px 48px #0003!important}.rgw-rr48m .rgw-hero-media img{display:block!important;width:100%!important;aspect-ratio:16\/10!important;object-fit:cover!important}.rgw-rr48m .rgw-hero-media figcaption{position:absolute!important;z-index:2!important;right:16px!important;bottom:13px!important;left:16px!important;padding:0!important;color:#dbe9f1!important;font-size:10px!important;text-shadow:0 1px 4px #000!important}\n<\/style>\n<div class=\"rgw-rr48m\">\n<div class=\"rgw-shell rgw-breadcrumb\"><a href=\"https:\/\/www.railgrindingwheel.com\/railgrinderlibrary\/\">Grinding Trains Library<\/a> \/ SPENO \/ RR 48 M<\/div>\n<section class=\"rgw-hero\">\n<div class=\"rgw-shell rgw-hero-grid\">\n<div>\n<div class=\"rgw-brand\">SPENO production grinding<\/div>\n<h1>SPENO RR 48 M Rail Grinding Train<\/h1>\n<p class=\"rgw-answer\">The SPENO RR 48 M is a 48-stone production rail grinding train for high-speed and main lines. Published data lists 48 water-cooled 22 kW grinding motors, 100 km\/h travel speed and LPM\u2013TPM measurement. It supports preventive cycles through heavy corrective grinding, subject to the customer-specific vehicle configuration.<\/p>\n<p class=\"rgw-review\">Last source review: 17 September 2026 \u00b7 Machine specifications are indicative and configuration-dependent<\/p>\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=\"#grinding-wheel\">View grinding wheel<\/a><\/div>\n<\/div>\n<figure class=\"rgw-hero-media\"><img decoding=\"async\" data-src=\"https:\/\/www.railgrindingwheel.com\/wp-content\/smush-webp\/2026\/09\/speno-rr48m-rail-grinding-train-scaled.jpg.webp\" alt=\"SPENO RR 48 M rail grinding train\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" style=\"--smush-placeholder-width: 1080px; --smush-placeholder-aspect-ratio: 1080\/640;\" data-smush-webp-fallback=\"{&quot;data-src&quot;:&quot;https:\\\/\\\/www.railgrindingwheel.com\\\/wp-content\\\/uploads\\\/2026\\\/09\\\/speno-rr48m-rail-grinding-train-scaled.jpg&quot;}\"><figcaption>SPENO RR 48 M production rail grinding train. User-supplied reference image.<\/figcaption><\/figure>\n<\/div>\n<\/section>\n<div class=\"rgw-shell rgw-facts\">\n<div><small>Grinding stones<\/small><strong>48<\/strong><\/div>\n<div><small>Motor power<\/small><strong>48 \u00d7 22 kW<\/strong><\/div>\n<div><small>Travel speed<\/small><strong>Up to 100 km\/h<\/strong><\/div>\n<div><small>Primary network<\/small><strong>Main \/ high-speed<\/strong><\/div>\n<\/div>\n<p><main class=\"rgw-body\"><\/p>\n<div class=\"rgw-shell rgw-layout\">\n<article class=\"rgw-main\">\n<nav class=\"rgw-toc\" aria-label=\"On this page\"><strong>On this page<\/strong><a href=\"#overview\">Overview<\/a><a href=\"#specifications\">Specifications<\/a><a href=\"#model-names\">Models<\/a><a href=\"#applications\">Applications<\/a><a href=\"#systems\">Systems<\/a><a href=\"#grinding-wheel\">Grinding wheel<\/a><a href=\"#ordering\">Ordering<\/a><a href=\"#faq\">FAQ<\/a><\/nav>\n<section id=\"overview\" class=\"rgw-section\"><span class=\"rgw-kicker\">Machine overview<\/span><\/p>\n<h2>What is the SPENO RR 48 M?<\/h2>\n<p>The RR 48 M is a high-output conventional rail grinding train in SPENO International&#8217;s RR machine family. SPENO lists RR 48 M machines both in its contracting fleet and among machines offered for sale. Yardway describes the model as suited to high-speed lines, main lines, open track and level crossings.<\/p>\n<p>Its operating range spans light cyclical intervention, preventive reprofiling and heavy corrective grinding. Forty-eight independently powered grinding positions provide the installed grinding capacity, while onboard measurement supports profile control and work verification.<\/p>\n<p class=\"rgw-note\"><strong>Configuration note:<\/strong> SPENO machines are customised for the customer and network. Treat the values on this page as a published reference configuration, not a universal build specification.<\/p>\n<\/section>\n<section id=\"specifications\" class=\"rgw-section\"><span class=\"rgw-kicker\">Published reference configuration<\/span><\/p>\n<h2>SPENO RR 48 M specifications<\/h2>\n<div class=\"rgw-spec\">\n<div class=\"rgw-spec-row\"><span>Specification<\/span><span>Published value<\/span><span>Qualification<\/span><\/div>\n<div class=\"rgw-spec-row\"><b>Track gauge<\/b><span>1,435 mm<\/span><span>Reference configuration<\/span><\/div>\n<div class=\"rgw-spec-row\"><b>Overall dimensions<\/b><span>112.65 \u00d7 2.98 \u00d7 4.15 m<\/span><span>Length \u00d7 width \u00d7 height<\/span><\/div>\n<div class=\"rgw-spec-row\"><b>Operating weight<\/b><span>398 t<\/span><span>Listed at three-quarter load<\/span><\/div>\n<div class=\"rgw-spec-row\"><b>Maximum axle load<\/b><span>20.3 t<\/span><span>Published value<\/span><\/div>\n<div class=\"rgw-spec-row\"><b>Loading gauge<\/b><span>UIC<\/span><span>Published value<\/span><\/div>\n<div class=\"rgw-spec-row\"><b>Maximum travel speed<\/b><span>100 km\/h<\/span><span>Published value<\/span><\/div>\n<div class=\"rgw-spec-row\"><b>Minimum curve radius<\/b><span>150 m grinding \/ 80 m travel<\/span><span>Operating mode differs<\/span><\/div>\n<div class=\"rgw-spec-row\"><b>Maximum gradient<\/b><span>40% as displayed by source<\/span><span>Confirm the unit with supplier<\/span><\/div>\n<div class=\"rgw-spec-row\"><b>Water capacity<\/b><span>11,000 L<\/span><span>Published value<\/span><\/div>\n<div class=\"rgw-spec-row\"><b>Diesel-engine power<\/b><span>1,455 kW<\/span><span>Published value<\/span><\/div>\n<div class=\"rgw-spec-row\"><b>Grinding motors<\/b><span>48 \u00d7 22 kW<\/span><span>Electric, water-cooled<\/span><\/div>\n<div class=\"rgw-spec-row\"><b>Grinding stones<\/b><span>48<\/span><span>Production grinding configuration<\/span><\/div>\n<div class=\"rgw-spec-row\"><b>Measurement system<\/b><span>LPM \u2013 TPM<\/span><span>Published designation<\/span><\/div>\n<\/div>\n<div class=\"rgw-source-line\">Source: <a href=\"https:\/\/www.yardway.hk\/en\/product\/rr-48\">Yardway RR\u201148 product page<\/a>. Yardway states that values are indicative because each SPENO vehicle is customised.<\/div>\n<\/section>\n<section id=\"model-names\" class=\"rgw-section\"><span class=\"rgw-kicker\">Entity and variant guide<\/span><\/p>\n<h2>Are RR 48 M, RR48M and RR-48 the same model family?<\/h2>\n<p>These spellings are commonly used for the same SPENO 48-stone machine family. SPENO writes the designation as <strong>RR 48 M<\/strong>; Yardway uses both RR 48 M and RR-48; condensed references often use RR48M. Keep the machine suffix when it is known because individual builds are not automatically identical.<\/p>\n<p>SPENO&#8217;s current machine list identifies contracting-fleet variants RR 48 M-2, M-3, M-4, M-5, M-7 and M-8. The list also includes RR 48 M among machines offered for sale. This page describes the family and the Yardway reference configuration, not every numbered variant.<\/p>\n<p class=\"rgw-note\"><strong>Why this matters:<\/strong> verify the full designation, fleet number and build documents before using dimensions, operating limits or grinding-wheel information for procurement.<\/p>\n<\/section>\n<section id=\"applications\" class=\"rgw-section\"><span class=\"rgw-kicker\">Operating scope<\/span><\/p>\n<h2>Where is the RR 48 M used?<\/h2>\n<div class=\"rgw-usecases\">\n<div><strong>High-speed lines<\/strong><\/p>\n<p>Production reprofiling where accuracy, measurement and repeatable output are required.<\/p>\n<\/div>\n<div><strong>Main lines<\/strong><\/p>\n<p>Preventive grinding cycles and corrective removal across open-track sections.<\/p>\n<\/div>\n<div><strong>Level crossings<\/strong><\/p>\n<p>Published as one of the rail-profile and track environments supported by the machine.<\/p>\n<\/div>\n<div><strong>Light to heavy intervention<\/strong><\/p>\n<p>From cyclical maintenance passes to heavier corrective grinding, depending on the work plan.<\/p>\n<\/div>\n<\/div>\n<\/section>\n<section id=\"systems\" class=\"rgw-section\"><span class=\"rgw-kicker\">Grinding and environmental systems<\/span><\/p>\n<h2>Grinding, measurement and protection systems<\/h2>\n<div class=\"rgw-process\">\n<div><b>01<\/b><\/p>\n<h3>Water-cooled motors<\/h3>\n<p>Each of the 48 grinding positions is listed with a 22 kW water-cooled electric motor.<\/p>\n<\/div>\n<div><b>02<\/b><\/p>\n<h3>Profile measurement<\/h3>\n<p>The published configuration identifies LPM\u2013TPM measurement and real-time rail cross-section display.<\/p>\n<\/div>\n<div><b>03<\/b><\/p>\n<h3>Spark management<\/h3>\n<p>Water-cooled spark deflectors and a high-pressure water system support operation around the grinding zone.<\/p>\n<\/div>\n<div><b>04<\/b><\/p>\n<h3>Dust collection<\/h3>\n<p>The source identifies an efficient collection system intended to reduce airborne grinding debris.<\/p>\n<\/div>\n<\/div>\n<\/section>\n<section id=\"grinding-wheel\" class=\"rgw-wheel\">\n<div class=\"rgw-wheel-intro\"><span class=\"rgw-kicker\">Referenced consumable<\/span><\/p>\n<h2>SPENO RR 48 M grinding wheel: 250 \u00d7 78 \u00d7 150 mm<\/h2>\n<p>The wheel selected for this page has a 250 mm outside diameter, 78 mm thickness and 150 mm bore. Its product page lists a maximum operating speed of 50 m\/s and general use on SPENO rail grinders. That public product page does not identify every RR 48 M variant by suffix, so the machine-specific approval remains a required check.<\/p>\n<\/div>\n<div class=\"rgw-wheel-body\">\n<figure class=\"rgw-wheel-photo\"><img decoding=\"async\" data-src=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2026\/09\/speno-rr48m-grinding-wheel-250x78x150.png\" alt=\"250 x 78 x 150 mm rail grinding wheel for SPENO grinders\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" style=\"--smush-placeholder-width: 1080px; --smush-placeholder-aspect-ratio: 1080\/810;\"><\/figure>\n<div class=\"rgw-wheel-copy\">\n<dl class=\"rgw-wheel-specs\">\n<div>\n<dt>Outside diameter<\/dt>\n<dd>250 mm<\/dd>\n<\/div>\n<div>\n<dt>Thickness<\/dt>\n<dd>78 mm<\/dd>\n<\/div>\n<div>\n<dt>Inner diameter<\/dt>\n<dd>150 mm<\/dd>\n<\/div>\n<div>\n<dt>Maximum speed<\/dt>\n<dd>50 m\/s<\/dd>\n<\/div>\n<\/dl>\n<p class=\"rgw-caution\"><strong>Compatibility check required:<\/strong> RR 48 M vehicles are customer-specific. Confirm the grinding-unit version, wheel drawing, bore and flange arrangement, approved speed, abrasive specification and operator approval before procurement or installation.<\/p>\n<p><a class=\"rgw-btn rgw-btn-primary\" href=\"https:\/\/www.railgrindingwheel.com\/rail-grinding-train-wheel\/250x78x150\/\">View the 250 \u00d7 78 \u00d7 150 mm wheel \u2192<\/a><\/div>\n<\/div>\n<\/section>\n<section id=\"ordering\" class=\"rgw-section\"><span class=\"rgw-kicker\">RFQ preparation<\/span><\/p>\n<h2>What should buyers confirm before ordering?<\/h2>\n<div class=\"rgw-checklist\">\n<div><b>01<\/b><span>Machine designation and RR 48 M fleet or serial number<\/span><\/div>\n<div><b>02<\/b><span>Existing wheel marking and approved drawing<\/span><\/div>\n<div><b>03<\/b><span>250 \u00d7 78 \u00d7 150 mm dimensional confirmation<\/span><\/div>\n<div><b>04<\/b><span>Bore, flange and mounting-interface details<\/span><\/div>\n<div><b>05<\/b><span>Maximum RPM or peripheral-speed requirement<\/span><\/div>\n<div><b>06<\/b><span>Rail condition, removal target and grinding program<\/span><\/div>\n<div><b>07<\/b><span>Required quantity and delivery schedule<\/span><\/div>\n<div><b>08<\/b><span>Destination country and packaging requirements<\/span><\/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 RR 48 M FAQ<\/h2>\n<details>\n<summary>What is the SPENO RR 48 M?<\/summary>\n<p>It is a 48-stone production rail grinding train intended primarily for high-speed and main-line reprofiling.<\/p>\n<\/details>\n<details>\n<summary>How many grinding stones does the RR 48 M use?<\/summary>\n<p>The published reference configuration uses 48 grinding stones and 48 water-cooled 22 kW grinding motors.<\/p>\n<\/details>\n<details>\n<summary>What is the maximum travel speed?<\/summary>\n<p>Yardway lists a maximum travel speed of 100 km\/h for the published configuration.<\/p>\n<\/details>\n<details>\n<summary>Can the RR 48 M perform corrective grinding?<\/summary>\n<p>Yes. The source describes work from light cyclical intervention through heavy corrective grinding.<\/p>\n<\/details>\n<details>\n<summary>What measurement system is listed?<\/summary>\n<p>The published specification identifies LPM\u2013TPM measurement and mentions real-time display of rail cross-section.<\/p>\n<\/details>\n<details>\n<summary>What grinding wheel is referenced for this page?<\/summary>\n<p>The referenced product is 250 \u00d7 78 \u00d7 150 mm with a published maximum speed of 50 m\/s. Confirm the exact machine and mounting configuration before ordering.<\/p>\n<\/details>\n<details>\n<summary>Are RR 48 M, RR48M and RR-48 the same designation?<\/summary>\n<p>They are common spellings for the same model family. Use the complete suffix or fleet number when confirming an individual machine.<\/p>\n<\/details>\n<details>\n<summary>Are all RR 48 M machines identical?<\/summary>\n<p>No. SPENO vehicles are customised to customer requirements, so dimensions, systems and consumable approval can vary.<\/p>\n<\/details>\n<\/section>\n<section class=\"rgw-references\">\n<h2>Sources and review method<\/h2>\n<ol>\n<li><a href=\"https:\/\/www.yardway.hk\/en\/product\/rr-48\">Yardway RR\u201148 product page<\/a> \u2014 model description and indicative technical data.<\/li>\n<li><a href=\"https:\/\/speno.ch\/en\/machines-en\/\">SPENO International machine range<\/a> \u2014 manufacturer confirmation of RR 48 M variants and operating environments.<\/li>\n<li><a href=\"https:\/\/www.railgrindingwheel.com\/rail-grinding-train-wheel\/250x78x150\/\">250 \u00d7 78 \u00d7 150 mm SPENO grinding wheel<\/a> \u2014 wheel dimensions and published maximum operating speed.<\/li>\n<\/ol>\n<p>Editorial review: 17 September 2026. Machine values are reported as source-specific reference data; wheel compatibility remains subject to configuration verification.<\/p>\n<\/section>\n<\/article>\n<aside class=\"rgw-aside\">\n<div class=\"rgw-info\">\n<div class=\"rgw-info-head\"><span>Production grinder<\/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>RR 48 M<\/dd>\n<\/div>\n<div>\n<dt>Stones<\/dt>\n<dd>48<\/dd>\n<\/div>\n<div>\n<dt>Motor output<\/dt>\n<dd>48 \u00d7 22 kW<\/dd>\n<\/div>\n<div>\n<dt>Track gauge<\/dt>\n<dd>1,435 mm reference<\/dd>\n<\/div>\n<div>\n<dt>Travel speed<\/dt>\n<dd>100 km\/h<\/dd>\n<\/div>\n<\/dl>\n<p><a class=\"rgw-official\" href=\"https:\/\/speno.ch\/en\/machines-en\/\">Official SPENO machine range \u2197<\/a><\/div>\n<div class=\"rgw-rfq\"><span class=\"rgw-kicker\">Wheel verification<\/span><\/p>\n<h3>Need an RR 48 M wheel quotation?<\/h3>\n<p>Send the machine version, current wheel marking, dimensions, mounting details, quantity and destination country.<\/p>\n<p><a class=\"rgw-btn\" href=\"https:\/\/www.railgrindingwheel.com\/contactus\/\">Send machine and wheel details \u2192<\/a><\/div>\n<\/aside>\n<\/div>\n<p><\/main><\/p>\n<section class=\"rgw-related\">\n<div class=\"rgw-shell\"><span class=\"rgw-kicker\">Related references<\/span><\/p>\n<h2>Continue exploring<\/h2>\n<div class=\"rgw-related-grid\"><a href=\"https:\/\/www.railgrindingwheel.com\/speno-rr24\/\"><small>SPENO grinder<\/small><strong>SPENO RR24<\/strong><span>Review the 24-stone grinding train.<\/span><\/a><a href=\"https:\/\/www.railgrindingwheel.com\/rail-grinding-train-wheel\/250x78x150\/\"><small>Compatible wheel reference<\/small><strong>250 \u00d7 78 \u00d7 150 mm<\/strong><span>Review dimensions and product information.<\/span><\/a><a class=\"rgw-library\" href=\"https:\/\/www.railgrindingwheel.com\/railgrinderlibrary\/\"><small>Model encyclopedia<\/small><strong>Grinding Trains Library<\/strong><span>Return to the model index.<\/span><\/a><\/div>\n<\/div>\n<\/section>\n<\/div>\n<p><script type=\"application\/ld+json\">{\"@context\": \"https:\/\/schema.org\", \"@graph\": [{\"@type\": \"WebPage\", \"@id\": \"https:\/\/www.railgrindingwheel.com\/speno-rr48m\/\", \"mainEntity\": {\"@id\": \"https:\/\/www.railgrindingwheel.com\/speno-rr48m\/#article\"}}, {\"@type\": \"TechArticle\", \"headline\": \"SPENO RR 48 M Rail Grinding Train\", \"description\": \"Source-backed guide to the SPENO RR 48 M production rail grinder, its 48-stone configuration, published specifications and 250 \u00d7 78 \u00d7 150 mm wheel reference.\", \"image\": \"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2026\/09\/speno-rr48m-rail-grinding-train-scaled.jpg\", \"datePublished\": \"2026-09-17T02:45:20+00:00\", \"dateModified\": \"2026-10-29\", \"author\": {\"@id\": \"https:\/\/www.railgrindingwheel.com\/#organization\"}, \"publisher\": {\"@id\": \"https:\/\/www.railgrindingwheel.com\/#organization\"}, \"mainEntityOfPage\": {\"@id\": \"https:\/\/www.railgrindingwheel.com\/speno-rr48m\/\"}, \"citation\": [\"https:\/\/www.yardway.hk\/en\/product\/rr-48\", \"https:\/\/speno.ch\/en\/machines-en\/\", \"https:\/\/www.railgrindingwheel.com\/rail-grinding-train-wheel\/250x78x150\/\"], \"about\": {\"@type\": \"Thing\", \"name\": \"SPENO RR 48 M Rail Grinding Train\", \"alternateName\": [\"SPENO RR48M\", \"SPENO RR-48\", \"RR 48 M-2\", \"RR 48 M-3\", \"RR 48 M-4\", \"RR 48 M-5\", \"RR 48 M-7\", \"RR 48 M-8\"], \"description\": \"manufacturer: SPENO International SA; model: RR 48 M; Grinding stones: 48; Grinding motor power: 48 \u00d7 22 kW; Maximum travel speed: 100 km\/h; Reference track gauge: 1,435 mm\", \"@id\": \"https:\/\/www.railgrindingwheel.com\/speno-rr48m\/#machine\"}, \"mentions\": {\"@type\": \"Thing\", \"name\": \"250 \u00d7 78 \u00d7 150 mm rail grinding wheel for SPENO applications\", \"url\": \"https:\/\/www.railgrindingwheel.com\/rail-grinding-train-wheel\/250x78x150\/\", \"image\": \"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2026\/09\/speno-rr48m-grinding-wheel-250x78x150.png\", \"description\": \"Dimensions: 250 \u00d7 78 \u00d7 150 mm; Maximum operating speed: 50 m\/s\", \"@id\": \"https:\/\/www.railgrindingwheel.com\/speno-rr48m\/#wheel-reference\"}, \"@id\": \"https:\/\/www.railgrindingwheel.com\/speno-rr48m\/#article\"}, {\"@type\": \"FAQPage\", \"mainEntity\": [{\"@type\": \"Question\", \"name\": \"What is the SPENO RR 48 M?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"A 48-stone production rail grinding train intended primarily for high-speed and main-line reprofiling.\"}}, {\"@type\": \"Question\", \"name\": \"How many grinding stones does the RR 48 M use?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The published reference configuration uses 48 grinding stones and 48 water-cooled 22 kW grinding motors.\"}}, {\"@type\": \"Question\", \"name\": \"What is the maximum travel speed?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The published reference configuration lists a maximum travel speed of 100 km\/h.\"}}, {\"@type\": \"Question\", \"name\": \"Can the RR 48 M perform corrective grinding?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"Yes. Published material describes work from light cyclical intervention through heavy corrective grinding.\"}}, {\"@type\": \"Question\", \"name\": \"What measurement system is listed?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The published specification identifies LPM\u2013TPM measurement.\"}}, {\"@type\": \"Question\", \"name\": \"What grinding wheel is referenced for this page?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"The referenced product is 250 \u00d7 78 \u00d7 150 mm with a published maximum speed of 50 m\/s. Exact compatibility must be confirmed for the machine configuration.\"}}, {\"@type\": \"Question\", \"name\": \"Are RR 48 M, RR48M and RR-48 the same designation?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"They are common spellings for the same model family. Use the complete suffix or fleet number when confirming an individual machine.\"}}, {\"@type\": \"Question\", \"name\": \"Are all RR 48 M machines identical?\", \"acceptedAnswer\": {\"@type\": \"Answer\", \"text\": \"No. SPENO vehicles are customised to customer requirements, so specifications and consumable approval can vary.\"}}], \"@id\": \"https:\/\/www.railgrindingwheel.com\/speno-rr48m\/#faq\", \"isPartOf\": {\"@id\": \"https:\/\/www.railgrindingwheel.com\/speno-rr48m\/\"}}]}<\/script><\/p>\n","protected":false},"excerpt":{"rendered":"<p>D\u00e9couvrez les caract\u00e9ristiques techniques du train de meulage de rails SPENO RR 48 M, ses diff\u00e9rentes versions, ses applications ainsi que la meule de 250 \u00d7 78 \u00d7 150 mm mentionn\u00e9e.<\/p>","protected":false},"author":4,"featured_media":5988,"parent":0,"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":"unboxed","site-sidebar-style":"unboxed","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 RR 48 M Rail Grinding Train | Rail Grinding Wheel<\/title>\n<meta name=\"description\" content=\"Explore SPENO RR 48 M rail grinder specifications, its 48-stone configuration, model variants and 250 \u00d7 78 \u00d7 150 mm grinding wheel reference.\" \/>\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\/fr\/speno-rr48m\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"SPENO RR 48 M Rail Grinding Train\" \/>\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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