{"id":5641,"date":"2026-08-12T02:32:28","date_gmt":"2026-08-12T02:32:28","guid":{"rendered":"https:\/\/www.railgrindingwheel.com\/?page_id=5641"},"modified":"2026-08-12T04:00:48","modified_gmt":"2026-08-12T04:00:48","slug":"sobre-nos","status":"publish","type":"page","link":"https:\/\/www.railgrindingwheel.com\/pt\/sobre-nos\/","title":{"rendered":"Sobre n\u00f3s"},"content":{"rendered":"\t\t<div data-elementor-type=\"wp-page\" data-elementor-id=\"5641\" class=\"elementor elementor-5641\" data-elementor-post-type=\"page\">\n\t\t\t\t\t\t<section class=\"elementor-section elementor-top-section elementor-element elementor-element-05c9ae1 elementor-section-boxed elementor-section-height-default elementor-section-height-default\" data-id=\"05c9ae1\" data-element_type=\"section\" data-settings=\"{&quot;background_background&quot;:&quot;classic&quot;}\">\n\t\t\t\t\t\t<div class=\"elementor-container elementor-column-gap-default\">\n\t\t\t\t\t<div class=\"elementor-column elementor-col-100 elementor-top-column elementor-element elementor-element-e21118e\" data-id=\"e21118e\" data-element_type=\"column\">\n\t\t\t<div class=\"elementor-widget-wrap elementor-element-populated\">\n\t\t\t\t\t\t<div class=\"elementor-element elementor-element-d51cda3 elementor-widget elementor-widget-html\" data-id=\"d51cda3\" data-element_type=\"widget\" data-widget_type=\"html.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<script type=\"application\/ld+json\">\r\n{\r\n  \"@context\": \"https:\/\/schema.org\",\r\n  \"@graph\": [\r\n    {\r\n      \"@type\": \"AboutPage\",\r\n      \"@id\": \"https:\/\/www.railgrindingwheel.com\/about-us\/#webpage\",\r\n      \"url\": \"https:\/\/www.railgrindingwheel.com\/about-us\/\",\r\n      \"name\": \"About Jumbo Abrasives | Rail Grinding Stone Manufacturer\",\r\n      \"description\": \"Learn about Jumbo Abrasives, a leading Chinese rail grinding stone manufacturer since 1996. CRCC certified A-level national railway supplier.\"\r\n    },\r\n    {\r\n      \"@type\": \"Organization\",\r\n      \"@id\": \"https:\/\/www.railgrindingwheel.com\/#organization\",\r\n      \"name\": \"Jumbo Abrasives Co., Ltd.\",\r\n      \"url\": \"https:\/\/www.railgrindingwheel.com\/\",\r\n      \"logo\": \"https:\/\/www.railgrindingwheel.com\/logo.png\",\r\n      \"foundingDate\": \"1996\",\r\n      \"description\": \"Professional rail grinding stone and profile grinding wheel manufacturer specializing in OEM\/ODM railway track maintenance solutions.\",\r\n      \"address\": {\r\n        \"@type\": \"PostalAddress\",\r\n        \"streetAddress\": \"Middle Section of Yuxinan 1st Road, Xingyang Industrial Cluster Park\",\r\n        \"addressLocality\": \"Zhengzhou\",\r\n        \"addressRegion\": \"Henan\",\r\n        \"addressCountry\": \"CN\"\r\n      },\r\n      \"contactPoint\": {\r\n        \"@type\": \"ContactPoint\",\r\n        \"telephone\": \"+86-13699264860\",\r\n        \"contactType\": \"customer service\",\r\n        \"email\": \"RailGrindingWheel@gmail.com\"\r\n      },\r\n      \"awards\": [\r\n        \"A-Level Approved Supplier for National Railway Systems (CRCC Certified)\",\r\n        \"Multiple National Technical Patents in Abrasives & Grinding Tools\",\r\n        \"Official Quality Test Report Certified by National Abrasives & Grinding Research Institute (ZZSM)\"\r\n      ],\r\n      \"hasCredential\": [\r\n        {\r\n          \"@type\": \"EducationalOccupationalCredential\",\r\n          \"name\": \"CRCC Certification (China Railway Test & Certification Centre)\"\r\n        },\r\n        {\r\n          \"@type\": \"EducationalOccupationalCredential\",\r\n          \"name\": \"ISO 9001 Quality Management System Certification\"\r\n        },\r\n        {\r\n          \"@type\": \"EducationalOccupationalCredential\",\r\n          \"name\": \"ISO 14001 Environmental Management System Certification\"\r\n        },\r\n        {\r\n          \"@type\": \"EducationalOccupationalCredential\",\r\n          \"name\": \"ISO 45001 Occupational Health and Safety Management Certification\"\r\n        },\r\n        {\r\n          \"@type\": \"EducationalOccupationalCredential\",\r\n          \"name\": \"European CE Compliance & EN 12413 Safety Standard Certification\"\r\n        }\r\n      ],\r\n      \"knowsAbout\": [\r\n        \"Rail Grinding Stone Manufacturing\",\r\n        \"Resin-Bonded Grinding Wheels\",\r\n        \"Railway Track Maintenance Technology\",\r\n        \"OEM Equipment Compatibility for Loram, Harsco, Vossloh\"\r\n      ],\r\n      \"sameAs\": [\r\n        \"https:\/\/www.linkedin.com\/\",\r\n        \"https:\/\/www.youtube.com\/\"\r\n      ]\r\n    }\r\n  ]\r\n}\r\n<\/script>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-164ad62 elementor-widget elementor-widget-heading\" data-id=\"164ad62\" data-element_type=\"widget\" data-widget_type=\"heading.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t<h1 class=\"elementor-heading-title elementor-size-default\">About Jumbo Abrasives \u2013 Premier Rail Grinding Stone Manufacturer<\/h1>\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-7e0b4f0 elementor-widget elementor-widget-image\" data-id=\"7e0b4f0\" data-element_type=\"widget\" data-widget_type=\"image.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<img decoding=\"async\" data-src=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/elementor\/thumbs\/\u5fae\u4fe1\u56fe\u7247_20250922064611_2284_34-scaled-e1786504005701-rrs1fzop0d27egihhtf7wb2cqqrbzpbryfffyizjvm.jpg\" title=\"Rail Grinding Stone Manufacturer\" alt=\"Rail Grinding Stone Manufacturer\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" class=\"lazyload\" style=\"--smush-placeholder-width: 800px; --smush-placeholder-aspect-ratio: 800\/445;\" \/>\t\t\t\t\t\t\t\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t<div class=\"elementor-element elementor-element-af402fb elementor-widget elementor-widget-text-editor\" data-id=\"af402fb\" data-element_type=\"widget\" data-widget_type=\"text-editor.default\">\n\t\t\t\t<div class=\"elementor-widget-container\">\n\t\t\t\t\t\t\t\t\t<div class=\"about-us-container\"><p class=\"lead-text\">Established in 1996, <strong>Jumbo Abrasives<\/strong> is a pioneer Chinese <strong>rail grinding stone manufacturer<\/strong> and global solution provider for railway track maintenance. We specialize in the R&amp;D, engineering, and mass production of high-efficiency, resin-bonded <a href=\"\/rail-grinding-train-wheel\/\">rail grinding stones and profile grinding wheels<\/a> built to OEM standards.<\/p><hr \/><div class=\"fact-sheet-box\" style=\"background-color: #f9f9f9; padding: 20px; border-left: 4px solid #0056b3; margin: 20px 0;\"><h2>At a Glance: Jumbo Abrasives Manufacturing Profile<\/h2><ul><li><strong>Entity Name:<\/strong> Jumbo Abrasives Co., Ltd.<\/li><li><strong>Industry Role:<\/strong> Direct Rail Grinding Stone &amp; Wheel Manufacturer (OEM \/ ODM)<\/li><li><strong>Established Year:<\/strong> 1996 (Nearly 30 years of specialized manufacturing)<\/li><li><strong>Production Base:<\/strong> 6,000 m\u00b2 modern manufacturing plant in Zhengzhou, Henan, China<\/li><li><strong>Production Capacity:<\/strong> 3 automated high-precision resin-bonded production lines<\/li><li><strong>Official Approvals:<\/strong> CRCC Certified | A-Level National Railway Supplier | ZZSM Quality Tested<\/li><li><strong>Core Products:<\/strong> <a href=\"\/profile-grinding-wheel\/\">Rail grinding stones, train profile grinding wheels, rail cutting discs<\/a><\/li><li><strong>Equipment Compatibility:<\/strong> OEM compatible with Loram, Harsco, Vossloh, GEMAC, Saint-Gobain<\/li><\/ul><\/div><hr \/><h2>Advanced Manufacturing Base &amp; Technical Capacity<\/h2><p>Our modern manufacturing headquarters is strategically situated in Zhengzhou, Henan Province\u2014the core logistics and industrial center of China\u2019s abrasives sector. Designed for heavy-haul track reliability, our plant guarantees consistent quality for large-scale global railway maintenance projects:<\/p><figure id=\"attachment_874\" aria-describedby=\"caption-attachment-874\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img fetchpriority=\"high\" decoding=\"async\" class=\"wp-image-874\" src=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2022\/08\/\u5382\u623f-1-1.jpg\" alt=\"Jumbo Abrasives Factory\" width=\"800\" height=\"356\" srcset=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2022\/08\/\u5382\u623f-1-1.jpg 1080w, https:\/\/www.railgrindingwheel.com\/wp-content\/smush-webp\/2022\/08\/\u5382\u623f-1-1-300x133.jpg.webp 300w, https:\/\/www.railgrindingwheel.com\/wp-content\/smush-webp\/2022\/08\/\u5382\u623f-1-1-1024x455.jpg.webp 1024w, https:\/\/www.railgrindingwheel.com\/wp-content\/smush-webp\/2022\/08\/\u5382\u623f-1-1-768x342.jpg.webp 768w, https:\/\/www.railgrindingwheel.com\/wp-content\/smush-webp\/2022\/08\/\u5382\u623f-1-1-1536x683.jpg.webp 1536w\" sizes=\"(max-width: 800px) 100vw, 800px\" data-smush-webp-fallback=\"{&quot;srcset&quot;:&quot;https:\\\/\\\/www.railgrindingwheel.com\\\/wp-content\\\/uploads\\\/2022\\\/08\\\/\\u5382\\u623f-1-1.jpg 1080w, https:\\\/\\\/www.railgrindingwheel.com\\\/wp-content\\\/uploads\\\/2022\\\/08\\\/\\u5382\\u623f-1-1-300x133.jpg 300w, https:\\\/\\\/www.railgrindingwheel.com\\\/wp-content\\\/uploads\\\/2022\\\/08\\\/\\u5382\\u623f-1-1-1024x455.jpg 1024w, https:\\\/\\\/www.railgrindingwheel.com\\\/wp-content\\\/uploads\\\/2022\\\/08\\\/\\u5382\\u623f-1-1-768x342.jpg 768w, https:\\\/\\\/www.railgrindingwheel.com\\\/wp-content\\\/uploads\\\/2022\\\/08\\\/\\u5382\\u623f-1-1-1536x683.jpg 1536w&quot;}\" \/><figcaption id=\"caption-attachment-874\" class=\"wp-caption-text\">Jumbo Abrasvies Factgory<\/figcaption><\/figure><figure id=\"attachment_875\" aria-describedby=\"caption-attachment-875\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"wp-image-875 lazyload\" data-src=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2022\/08\/\u5de5\u5382_7-1.jpg\" alt=\"Jumbo Abrasives Factgory\" width=\"800\" height=\"359\" data-srcset=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2022\/08\/\u5de5\u5382_7-1.jpg 1080w, https:\/\/www.railgrindingwheel.com\/wp-content\/smush-webp\/2022\/08\/\u5de5\u5382_7-1-300x134.jpg.webp 300w, https:\/\/www.railgrindingwheel.com\/wp-content\/smush-webp\/2022\/08\/\u5de5\u5382_7-1-1024x459.jpg.webp 1024w, https:\/\/www.railgrindingwheel.com\/wp-content\/smush-webp\/2022\/08\/\u5de5\u5382_7-1-768x344.jpg.webp 768w, https:\/\/www.railgrindingwheel.com\/wp-content\/smush-webp\/2022\/08\/\u5de5\u5382_7-1-1536x688.jpg.webp 1536w\" data-sizes=\"(max-width: 800px) 100vw, 800px\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 800px; --smush-placeholder-aspect-ratio: 800\/359;\" data-smush-webp-fallback=\"{&quot;data-srcset&quot;:&quot;https:\\\/\\\/www.railgrindingwheel.com\\\/wp-content\\\/uploads\\\/2022\\\/08\\\/\\u5de5\\u5382_7-1.jpg 1080w, https:\\\/\\\/www.railgrindingwheel.com\\\/wp-content\\\/uploads\\\/2022\\\/08\\\/\\u5de5\\u5382_7-1-300x134.jpg 300w, https:\\\/\\\/www.railgrindingwheel.com\\\/wp-content\\\/uploads\\\/2022\\\/08\\\/\\u5de5\\u5382_7-1-1024x459.jpg 1024w, https:\\\/\\\/www.railgrindingwheel.com\\\/wp-content\\\/uploads\\\/2022\\\/08\\\/\\u5de5\\u5382_7-1-768x344.jpg 768w, https:\\\/\\\/www.railgrindingwheel.com\\\/wp-content\\\/uploads\\\/2022\\\/08\\\/\\u5de5\\u5382_7-1-1536x688.jpg 1536w&quot;}\" \/><figcaption id=\"caption-attachment-875\" class=\"wp-caption-text\">Jumbo Abrasives Factgory<\/figcaption><\/figure><ul><li><strong>6,000 m\u00b2 Production Facility:<\/strong> Optimized for raw material processing, high-pressure molding, precise curing, and rigorous quality inspection.<\/li><li><strong>3 Automated Production Lines:<\/strong> Specialized in resin-bonded heavy-duty rail grinding stones to ensure exceptional dynamic balance and uniform hardness.<\/li><li><strong>100+ Skilled Workforce:<\/strong> Supported by a dedicated team of 100+ engineers, quality control specialists, and global logistics coordinators.<\/li><li><strong>40+ Years of Chief Engineering Experience:<\/strong> Led by our Chief Technical Officer with over four decades of dedicated research in resin-bonded abrasive formulations.<\/li><\/ul><hr \/><h2>Certifications, Compliance &amp; Official Railway Approvals<\/h2><p>Safety, structural integrity, and lot-to-lot consistency are paramount in railway track maintenance. Jumbo Abrasives operates under a rigorous quality management framework that aligns with leading international standards and official railway authority certifications:<\/p><figure id=\"attachment_5676\" aria-describedby=\"caption-attachment-5676\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"wp-image-5676 lazyload\" data-src=\"https:\/\/www.railgrindingwheel.com\/wp-content\/smush-webp\/2026\/08\/9991d573f808bff8e78abab6851242cd-scaled.jpg.webp\" alt=\"Jumbo Abrasives Patent\" width=\"800\" height=\"600\" data-srcset=\"https:\/\/www.railgrindingwheel.com\/wp-content\/smush-webp\/2026\/08\/9991d573f808bff8e78abab6851242cd-scaled.jpg.webp 1080w, https:\/\/www.railgrindingwheel.com\/wp-content\/smush-webp\/2026\/08\/9991d573f808bff8e78abab6851242cd-300x225.jpg.webp 300w, https:\/\/www.railgrindingwheel.com\/wp-content\/smush-webp\/2026\/08\/9991d573f808bff8e78abab6851242cd-1024x768.jpg.webp 1024w, https:\/\/www.railgrindingwheel.com\/wp-content\/smush-webp\/2026\/08\/9991d573f808bff8e78abab6851242cd-768x576.jpg.webp 768w, https:\/\/www.railgrindingwheel.com\/wp-content\/smush-webp\/2026\/08\/9991d573f808bff8e78abab6851242cd-1536x1152.jpg.webp 1536w, https:\/\/www.railgrindingwheel.com\/wp-content\/smush-webp\/2026\/08\/9991d573f808bff8e78abab6851242cd-2048x1536.jpg.webp 2048w, https:\/\/www.railgrindingwheel.com\/wp-content\/smush-webp\/2026\/08\/9991d573f808bff8e78abab6851242cd-16x12.jpg.webp 16w\" data-sizes=\"(max-width: 800px) 100vw, 800px\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 800px; --smush-placeholder-aspect-ratio: 800\/600;\" data-smush-webp-fallback=\"{&quot;data-src&quot;:&quot;https:\\\/\\\/www.railgrindingwheel.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/9991d573f808bff8e78abab6851242cd-scaled.jpg&quot;,&quot;data-srcset&quot;:&quot;https:\\\/\\\/www.railgrindingwheel.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/9991d573f808bff8e78abab6851242cd-scaled.jpg 1080w, https:\\\/\\\/www.railgrindingwheel.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/9991d573f808bff8e78abab6851242cd-300x225.jpg 300w, https:\\\/\\\/www.railgrindingwheel.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/9991d573f808bff8e78abab6851242cd-1024x768.jpg 1024w, https:\\\/\\\/www.railgrindingwheel.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/9991d573f808bff8e78abab6851242cd-768x576.jpg 768w, https:\\\/\\\/www.railgrindingwheel.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/9991d573f808bff8e78abab6851242cd-1536x1152.jpg 1536w, https:\\\/\\\/www.railgrindingwheel.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/9991d573f808bff8e78abab6851242cd-2048x1536.jpg 2048w, https:\\\/\\\/www.railgrindingwheel.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/9991d573f808bff8e78abab6851242cd-16x12.jpg 16w&quot;}\" \/><figcaption id=\"caption-attachment-5676\" class=\"wp-caption-text\">Jumbo Abrasives Patent<\/figcaption><\/figure><ul><li><strong>National Railway &amp; CRCC Approved Supplier:<\/strong> Certified by the China Railway Test &amp; Certification Centre (CRCC) and recognized as an A-Level Approved Supplier for National Railway Systems (formerly Ministry of Railways).<\/li><li><strong>Authoritative National Testing (ZZSM Report):<\/strong> Certified with official quality inspection reports issued by the National Abrasives &amp; Grinding Research Institute (ZZSM) for structural integrity, bond strength, and safety under high-speed rotation.<\/li><li><strong>National Technical Patents:<\/strong> Awarded multiple national-level technical patents in the field of abrasives and grinding tools, specializing in high-durability bonding formulas and precision profile grinding technologies.<\/li><li><strong>International Management Systems:<\/strong> Fully certified under ISO 9001 (Quality Management), ISO 14001 (Environmental Management), and ISO 45001 \/ OHSAS 18001 (Occupational Health &amp; Safety).<\/li><li><strong>Global Safety Standards:<\/strong> Compliant with European CE and EN 12413 safety standards for bonded abrasive tools, ensuring maximum rotation safety and tensile stress resistance.<\/li><\/ul><hr \/><h2>One-Stop OEM Solutions for Global Railway Networks<\/h2><p>To support diverse global track conditions, Jumbo Abrasives provides comprehensive, one-stop OEM abrasive solutions tailored for heavy-haul freight, high-speed passenger lines, and urban transit networks:<\/p><figure id=\"attachment_5655\" aria-describedby=\"caption-attachment-5655\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"wp-image-5655 lazyload\" data-src=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2026\/08\/\u5fae\u4fe1\u56fe\u7247_2026-08-12_111522_982-e1786504634696.jpg\" alt=\"Jumbo Abrasives Factory\" width=\"800\" height=\"447\" data-srcset=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2026\/08\/\u5fae\u4fe1\u56fe\u7247_2026-08-12_111522_982-e1786504634696.jpg 1078w, https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2026\/08\/\u5fae\u4fe1\u56fe\u7247_2026-08-12_111522_982-e1786504634696-300x168.jpg 300w, https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2026\/08\/\u5fae\u4fe1\u56fe\u7247_2026-08-12_111522_982-e1786504634696-1024x573.jpg 1024w, https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2026\/08\/\u5fae\u4fe1\u56fe\u7247_2026-08-12_111522_982-e1786504634696-768x430.jpg 768w, https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2026\/08\/\u5fae\u4fe1\u56fe\u7247_2026-08-12_111522_982-e1786504634696-18x10.jpg 18w\" data-sizes=\"(max-width: 800px) 100vw, 800px\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 800px; --smush-placeholder-aspect-ratio: 800\/447;\" \/><figcaption id=\"caption-attachment-5655\" class=\"wp-caption-text\">Jumbo Abrasives Factory<\/figcaption><\/figure><figure id=\"attachment_5684\" aria-describedby=\"caption-attachment-5684\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"wp-image-5684 lazyload\" data-src=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2026\/08\/\u5fae\u4fe1\u56fe\u7247_2026-08-12_111518_709.jpg\" alt=\"Discuss Tech Details\" width=\"800\" height=\"600\" data-srcset=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2026\/08\/\u5fae\u4fe1\u56fe\u7247_2026-08-12_111518_709.jpg 1080w, https:\/\/www.railgrindingwheel.com\/wp-content\/smush-webp\/2026\/08\/\u5fae\u4fe1\u56fe\u7247_2026-08-12_111518_709-300x225.jpg.webp 300w, https:\/\/www.railgrindingwheel.com\/wp-content\/smush-webp\/2026\/08\/\u5fae\u4fe1\u56fe\u7247_2026-08-12_111518_709-1024x768.jpg.webp 1024w, https:\/\/www.railgrindingwheel.com\/wp-content\/smush-webp\/2026\/08\/\u5fae\u4fe1\u56fe\u7247_2026-08-12_111518_709-768x576.jpg.webp 768w, https:\/\/www.railgrindingwheel.com\/wp-content\/smush-webp\/2026\/08\/\u5fae\u4fe1\u56fe\u7247_2026-08-12_111518_709-16x12.jpg.webp 16w\" data-sizes=\"(max-width: 800px) 100vw, 800px\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 800px; --smush-placeholder-aspect-ratio: 800\/600;\" data-smush-webp-fallback=\"{&quot;data-srcset&quot;:&quot;https:\\\/\\\/www.railgrindingwheel.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/\\u5fae\\u4fe1\\u56fe\\u7247_2026-08-12_111518_709.jpg 1080w, https:\\\/\\\/www.railgrindingwheel.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/\\u5fae\\u4fe1\\u56fe\\u7247_2026-08-12_111518_709-300x225.jpg 300w, https:\\\/\\\/www.railgrindingwheel.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/\\u5fae\\u4fe1\\u56fe\\u7247_2026-08-12_111518_709-1024x768.jpg 1024w, https:\\\/\\\/www.railgrindingwheel.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/\\u5fae\\u4fe1\\u56fe\\u7247_2026-08-12_111518_709-768x576.jpg 768w, https:\\\/\\\/www.railgrindingwheel.com\\\/wp-content\\\/uploads\\\/2026\\\/08\\\/\\u5fae\\u4fe1\\u56fe\\u7247_2026-08-12_111518_709-16x12.jpg 16w&quot;}\" \/><figcaption id=\"caption-attachment-5684\" class=\"wp-caption-text\">Discuss Tech Details<\/figcaption><\/figure><ul><li><strong>Heavy-Haul Freight Railways:<\/strong> High-durability grinding stones built to resist heavy axle loads and severe rail corrugation.<\/li><li><strong>High-Speed Passenger Rail:<\/strong> Ultra-precise profile grinding tools to restore rail smoothness and lower train vibration.<\/li><li><strong>Urban Transit &amp; Metros:<\/strong> Specialized low-noise, fast-cutting grinding solutions optimized for tight maintenance windows.<\/li><li><strong>Custom Grain &amp; Bond Formulation:<\/strong> Tailored formulas engineered for specific environmental temperatures and steel rail hardness specs.<\/li><\/ul><hr \/><h2>OEM Compatibility for Global Rail Grinding Equipment<\/h2><p>As an experienced <strong>rail grinding stone manufacturer<\/strong>, we engineer replacement and custom-spec grinding stones designed to seamlessly fit major international rail grinding train systems. Explore our detailed <a href=\"\/railgrinderlibrary\/\">Grinding Trains Library<\/a> for specific machine setups:<\/p><\/div><figure id=\"attachment_1314\" aria-describedby=\"caption-attachment-1314\" style=\"width: 800px\" class=\"wp-caption aligncenter\"><img decoding=\"async\" class=\"wp-image-1314 lazyload\" data-src=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2025\/09\/\u5c55\u4f1a1.webp\" alt=\"Jumbo Abrasives Rail Grinding Wheel\" width=\"800\" height=\"360\" data-srcset=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2025\/09\/\u5c55\u4f1a1.webp 814w, https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2025\/09\/\u5c55\u4f1a1-300x135.webp 300w, https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2025\/09\/\u5c55\u4f1a1-768x345.webp 768w\" data-sizes=\"(max-width: 800px) 100vw, 800px\" src=\"data:image\/gif;base64,R0lGODlhAQABAAAAACH5BAEKAAEALAAAAAABAAEAAAICTAEAOw==\" style=\"--smush-placeholder-width: 800px; --smush-placeholder-aspect-ratio: 800\/360;\" \/><figcaption id=\"caption-attachment-1314\" class=\"wp-caption-text\">Jumbo Abrasives Rail Grinding Wheel<\/figcaption><\/figure><div class=\"about-us-container\"><table style=\"width: 100%; border-collapse: collapse; text-align: left; margin: 20px 0;\" border=\"1\" cellspacing=\"0\" cellpadding=\"10\"><thead><tr style=\"background-color: #f2f2f2;\"><th>Grinding Train Brand<\/th><th>Target Machine \/ Model Series<\/th><th>Stone Specification \/ Application<\/th><\/tr><\/thead><tbody><tr><td><strong>Loram<\/strong><\/td><td>RG400, RGI, and customized Loram grinders<\/td><td>Heavy-haul profile restoration &amp; corrugation removal<\/td><\/tr><tr><td><strong>Harsco<\/strong><\/td><td>RGH20C, Railhead grinders<\/td><td>High-speed metal removal &amp; reprofiling<\/td><\/tr><tr><td><strong>Vossloh<\/strong><\/td><td>HSG-city, High-Speed Grinding trains<\/td><td>Urban transit &amp; main-line preventive maintenance<\/td><\/tr><tr><td><strong>Custom \/ OEM<\/strong><\/td><td>GEMAC, Saint-Gobain setups &amp; standard units<\/td><td>Custom dimensions (e.g., 260x90x154, 152x80xM20, 120x73x40)<\/td><\/tr><\/tbody><\/table><hr \/><h2>Frequently Asked Questions (FAQ)<\/h2><p>For more general technical inquiries, feel free to visit our dedicated <a href=\"\/faq\/\">FAQ Page<\/a>.<\/p><div class=\"faq-item\" style=\"margin-bottom: 15px;\"><strong>Q: Is Jumbo Abrasives a direct manufacturer or a trading company?<\/strong><br \/>A: Jumbo Abrasives is a direct <strong>rail grinding stone manufacturer<\/strong> established in 1996, operating a 6,000 m\u00b2 factory in Zhengzhou, Henan, China with CRCC and ISO certifications.<\/div><div class=\"faq-item\" style=\"margin-bottom: 15px;\"><strong>Q: What official certifications do your rail grinding stones hold?<\/strong><br \/>A: Our rail grinding stones hold CRCC official approval, National Railway A-Level supplier qualification, ZZSM national lab testing reports, multiple national technical patents in abrasives, ISO 9001\/14001\/45001 management certifications, and European CE\/EN 12413 safety compliance.<\/div><div class=\"faq-item\" style=\"margin-bottom: 15px;\"><strong>Q: Can Jumbo Abrasives manufacture custom specifications for specialized grinding machines?<\/strong><br \/>A: Yes, we offer full OEM\/ODM services. We can customize dimensions, grit sizes, grain formulations, and bonding hardness based on your technical drawings or target track operating conditions.<\/div><div class=\"faq-item\" style=\"margin-bottom: 15px;\"><strong>Q: How do I request samples or official technical test reports?<\/strong><br \/>A: You can contact our engineering sales team through our <a href=\"\/contactus\/\">Contact Us page<\/a> or directly via WhatsApp (+86 13699264860) or Email (RailGrindingWheel@gmail.com). All inquiries receive a technical response within 24 hours.<\/div><\/div>\t\t\t\t\t\t\t\t<\/div>\n\t\t\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/div>\n\t\t\t\t\t<\/div>\n\t\t<\/section>\n\t\t\t\t<\/div>\n\t\t","protected":false},"excerpt":{"rendered":"<p>About Jumbo Abrasives \u2013 Premier Rail Grinding Stone Manufacturer Established in 1996, Jumbo Abrasives is a pioneer Chinese rail grinding stone manufacturer and global solution provider for railway track maintenance. We specialize in the R&amp;D, engineering, and mass production of high-efficiency, resin-bonded rail grinding stones and profile grinding wheels built to OEM standards. At a [&hellip;]<\/p>\n","protected":false},"author":4,"featured_media":1315,"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":"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 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":""}},"footnotes":""},"class_list":["post-5641","page","type-page","status-publish","has-post-thumbnail","hentry"],"yoast_head":"<!-- This site is optimized with the Yoast SEO Premium plugin v25.9 (Yoast SEO v25.9) - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>About Jumbo Abrasives | Rail Grinding Stone Manufacturer<\/title>\n<meta name=\"description\" content=\"Learn about Jumbo Abrasives, a leading Chinese rail grinding stone manufacturer since 1996. 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