{"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":"2026-09-07T14:18:42","modified_gmt":"2026-09-07T14:18:42","slug":"sobre-nos","status":"publish","type":"page","link":"https:\/\/www.railgrindingwheel.com\/pt\/sobre-nos\/","title":{"rendered":"Sobre n\u00f3s"},"content":{"rendered":"<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\">{\n    \"@context\": \"https:\\\/\\\/schema.org\",\n    \"@type\": \"AboutPage\",\n    \"@id\": \"https:\\\/\\\/www.railgrindingwheel.com\\\/about-us\\\/#webpage\",\n    \"url\": \"https:\\\/\\\/www.railgrindingwheel.com\\\/about-us\\\/\",\n    \"name\": \"About Jumbo Abrasives | Rail Grinding Stone Manufacturer\",\n    \"description\": \"Learn about Jumbo Abrasives, a Chinese rail grinding stone manufacturer established in 1996.\",\n    \"mainEntity\": {\n        \"@id\": \"https:\\\/\\\/www.railgrindingwheel.com\\\/#organization\"\n    },\n    \"isPartOf\": {\n        \"@id\": \"https:\\\/\\\/www.railgrindingwheel.com\\\/#website\"\n    }\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\">Sobre a Jumbo Abrasives \u2013 Fabricante l\u00edder de pedras de retifica\u00e7\u00e3o para trilhos<\/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=\"Fabricante de pedras de retifica\u00e7\u00e3o para trilhos\" alt=\"Fabricante de pedras de retifica\u00e7\u00e3o para trilhos\" 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\">Fundada em 1996, <strong>Jumbo Abrasives<\/strong> \u00e9 um chin\u00eas pioneiro <strong>fabricante de pedras de retifica\u00e7\u00e3o para trilhos<\/strong> e fornecedor global de solu\u00e7\u00f5es para manuten\u00e7\u00e3o de vias f\u00e9rreas. Somos especializados em pesquisa e desenvolvimento, engenharia e produ\u00e7\u00e3o em massa de produtos de alta efici\u00eancia, ligados por resina, <a href=\"\/pt\/roda-de-trem-de-retificacao-de-trilhos\/\">pedras de retifica\u00e7\u00e3o para trilhos e rebolos de retifica\u00e7\u00e3o de perfil<\/a> fabricado de acordo com os padr\u00f5es dos fabricantes de equipamentos originais (OEM).<\/p><hr \/><div class=\"fact-sheet-box\" style=\"background-color: #f9f9f9; padding: 20px; border-left: 4px solid #0056b3; margin: 20px 0;\"><h2>Vis\u00e3o geral: Perfil da Jumbo Abrasives Manufacturing<\/h2><ul><li><strong>Nome da entidade:<\/strong> Jumbo Abrasives Co., Ltd.<\/li><li><strong>Nome jur\u00eddico em chin\u00eas:<\/strong> Zhengzhou Jinbo Abrasive Tools Co., Ltd.<\/li><li><strong>Fun\u00e7\u00e3o no setor:<\/strong> Fabricante direto de pedras e discos de retifica\u00e7\u00e3o ferrovi\u00e1ria (OEM \/ ODM)<\/li><li><strong>Ano de funda\u00e7\u00e3o:<\/strong> 1996 (Fundada em 1996)<\/li><li><strong>Base de produ\u00e7\u00e3o:<\/strong> F\u00e1brica moderna de 6.000 m\u00b2 em Zhengzhou, Henan, China<\/li><li><strong>Capacidade de produ\u00e7\u00e3o:<\/strong> 3 linhas de produ\u00e7\u00e3o automatizadas de alta precis\u00e3o com colagem \u00e0 base de resina<\/li><li><strong>Aprova\u00e7\u00f5es oficiais:<\/strong> Certificado pela CRCC | Fornecedor ferrovi\u00e1rio nacional de n\u00edvel A | Qualidade testada pela ZZSM<\/li><li><strong>Principais produtos:<\/strong> <a href=\"\/pt\/refres-de-perfil\/\">Pedras de retifica\u00e7\u00e3o para trilhos, rebolos para perfilamento de trens, discos de corte para trilhos<\/a><\/li><li><strong>Compatibilidade com equipamentos:<\/strong> Compat\u00edvel com os fabricantes originais (OEM) Loram, Harsco, Vossloh, GEMAC e Saint-Gobain<\/li><\/ul><\/div><hr \/><h2>Base de Manufatura Avan\u00e7ada e Capacidade T\u00e9cnica<\/h2><p>Nossa moderna sede de produ\u00e7\u00e3o est\u00e1 estrategicamente localizada em Zhengzhou, na prov\u00edncia de Henan \u2014 o principal centro log\u00edstico e industrial do setor de abrasivos da China. Projetada para garantir a confiabilidade em vias f\u00e9rreas de transporte pesado, nossa f\u00e1brica assegura qualidade consistente para projetos globais de manuten\u00e7\u00e3o ferrovi\u00e1ria em grande escala:<\/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=\"F\u00e1brica de Abrasivos Jumbo\" 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\">F\u00e1brica de Abrasivos Jumbo<\/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=\"F\u00e1brica de Abrasivos Jumbo\" 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\">F\u00e1brica de Abrasivos Jumbo<\/figcaption><\/figure><ul><li><strong>Unidade de produ\u00e7\u00e3o de 6.000 m\u00b2:<\/strong> Otimizado para o processamento de mat\u00e9rias-primas, moldagem sob alta press\u00e3o, cura precisa e inspe\u00e7\u00e3o rigorosa de qualidade.<\/li><li><strong>3 linhas de produ\u00e7\u00e3o automatizadas:<\/strong> Especializada em pedras de retifica\u00e7\u00e3o ferrovi\u00e1rias para servi\u00e7os pesados com ligante de resina, para garantir um equil\u00edbrio din\u00e2mico excepcional e dureza uniforme.<\/li><li><strong>Mais de 100 profissionais qualificados:<\/strong> Contamos com o apoio de uma equipe dedicada de mais de 100 engenheiros, especialistas em controle de qualidade e coordenadores de log\u00edstica global.<\/li><li><strong>Mais de 40 anos de experi\u00eancia como diretor de engenharia:<\/strong> Liderada pelo nosso Diretor T\u00e9cnico, que conta com mais de quatro d\u00e9cadas de pesquisa dedicada a formula\u00e7\u00f5es de abrasivos aglutinados com resina.<\/li><\/ul><hr \/><h2>Certifica\u00e7\u00f5es, Conformidade e Aprova\u00e7\u00f5es Oficiais Ferrovi\u00e1rias<\/h2><p>A seguran\u00e7a, a integridade estrutural e a consist\u00eancia entre lotes s\u00e3o fundamentais na manuten\u00e7\u00e3o de vias f\u00e9rreas. A Jumbo Abrasives opera sob uma rigorosa estrutura de gest\u00e3o da qualidade que est\u00e1 em conformidade com as principais normas internacionais e certifica\u00e7\u00f5es das autoridades ferrovi\u00e1rias oficiais:<\/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=\"Patente da Jumbo Abrasives\" 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\">Patente da Jumbo Abrasives<\/figcaption><\/figure><ul><li><strong>Fornecedor aprovado pela National Railway e pela CRCC:<\/strong> Certificada pelo Centro de Testes e Certifica\u00e7\u00e3o Ferrovi\u00e1ria da China (CRCC) e reconhecida como fornecedora aprovada de n\u00edvel A para os Sistemas Ferrovi\u00e1rios Nacionais (antigo Minist\u00e9rio das Ferrovias).<\/li><li><strong>Avalia\u00e7\u00e3o Nacional Oficial (Relat\u00f3rio ZZSM):<\/strong> Certificado por meio de relat\u00f3rios oficiais de inspe\u00e7\u00e3o de qualidade emitidos pelo Instituto Nacional de Pesquisa em Abrasivos e Retifica\u00e7\u00e3o (ZZSM) quanto \u00e0 integridade estrutural, resist\u00eancia de ader\u00eancia e seguran\u00e7a em rota\u00e7\u00e3o de alta velocidade.<\/li><li><strong>Patentes T\u00e9cnicas Nacionais:<\/strong> Recebeu diversas patentes t\u00e9cnicas de n\u00edvel nacional na \u00e1rea de abrasivos e ferramentas de retifica\u00e7\u00e3o, com especializa\u00e7\u00e3o em f\u00f3rmulas de ligantes de alta durabilidade e tecnologias de retifica\u00e7\u00e3o de perfis de precis\u00e3o.<\/li><li><strong>Sistemas de Gest\u00e3o Internacionais:<\/strong> Totalmente certificada pelas normas ISO 9001 (Gest\u00e3o da Qualidade), ISO 14001 (Gest\u00e3o Ambiental) e ISO 45001 \/ OHSAS 18001 (Sa\u00fade e Seguran\u00e7a Ocupacional).<\/li><li><strong>Normas globais de seguran\u00e7a:<\/strong> Em conformidade com as normas europeias de seguran\u00e7a CE e EN 12413 para ferramentas abrasivas aglomeradas, garantindo m\u00e1xima seguran\u00e7a na rota\u00e7\u00e3o e resist\u00eancia \u00e0 tens\u00e3o de tra\u00e7\u00e3o.<\/li><\/ul><hr \/><h2>Solu\u00e7\u00f5es completas de OEM para redes ferrovi\u00e1rias globais<\/h2><p>Para atender \u00e0s diversas condi\u00e7\u00f5es das vias f\u00e9rreas em todo o mundo, a Jumbo Abrasives oferece solu\u00e7\u00f5es abrangentes e completas de abrasivos para fabricantes de equipamentos originais (OEM), adaptadas para o transporte de carga pesada, linhas de passageiros de alta velocidade e redes de transporte urbano:<\/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=\"F\u00e1brica de Abrasivos Jumbo\" 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\">F\u00e1brica de Abrasivos Jumbo<\/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=\"Discutir detalhes t\u00e9cnicos\" 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\">Discutir detalhes t\u00e9cnicos<\/figcaption><\/figure><ul><li><strong>Ferrovias para transporte de cargas pesadas:<\/strong> Pedras de retifica\u00e7\u00e3o de alta durabilidade, projetadas para resistir a cargas pesadas nos eixos e a ondula\u00e7\u00f5es severas nos trilhos.<\/li><li><strong>Trem de passageiros de alta velocidade:<\/strong> Ferramentas de retifica\u00e7\u00e3o de perfil ultraprecisas para restaurar a lisura dos trilhos e reduzir a vibra\u00e7\u00e3o dos trens.<\/li><li><strong>Transporte urbano e metr\u00f4s:<\/strong> Solu\u00e7\u00f5es especializadas de retifica\u00e7\u00e3o de baixo ru\u00eddo e corte r\u00e1pido, otimizadas para janelas de manuten\u00e7\u00e3o restritas.<\/li><li><strong>Formula\u00e7\u00e3o personalizada de gr\u00e3os e ligantes:<\/strong> F\u00f3rmulas personalizadas, desenvolvidas para temperaturas ambientais espec\u00edficas e especifica\u00e7\u00f5es de dureza de trilhos de a\u00e7o.<\/li><\/ul><hr \/><h2>Compatibilidade com fabricantes de equipamentos originais (OEM) para equipamentos de retifica\u00e7\u00e3o ferrovi\u00e1ria em todo o mundo<\/h2><p>Como um profissional experiente <strong>fabricante de pedras de retifica\u00e7\u00e3o para trilhos<\/strong>, projetamos pedras de retifica\u00e7\u00e3o de reposi\u00e7\u00e3o e sob medida, concebidas para se adaptarem perfeitamente aos principais sistemas internacionais de trens de retifica\u00e7\u00e3o ferrovi\u00e1ria. Conhe\u00e7a nosso cat\u00e1logo detalhado <a href=\"\/pt\/railgrinderlibrary\/\">Biblioteca de Trens de Retifica\u00e7\u00e3o<\/a> para configura\u00e7\u00f5es espec\u00edficas da m\u00e1quina:<\/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=\"Disco de esmerilhamento para trilhos da Jumbo Abrasives\" 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\">Disco de esmerilhamento para trilhos da Jumbo Abrasives<\/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>Marca de trens de retifica\u00e7\u00e3o<\/th><th>M\u00e1quina de destino \/ S\u00e9rie do modelo<\/th><th>Especifica\u00e7\u00f5es e aplica\u00e7\u00f5es da pedra<\/th><\/tr><\/thead><tbody><tr><td><strong>Loram<\/strong><\/td><td>Moedores RG400, RGI e moedores Loram personalizados<\/td><td>Restaura\u00e7\u00e3o do perfil de vias para transporte de cargas pesadas e remo\u00e7\u00e3o de ondula\u00e7\u00f5es<\/td><\/tr><tr><td><strong>Harsco<\/strong><\/td><td>RGH20C, esmerilhadeiras para cabe\u00e7as de trilhos<\/td><td>Remo\u00e7\u00e3o de metal e reprofilagem em alta velocidade<\/td><\/tr><tr><td><strong>Vossloh<\/strong><\/td><td>HSG-city, trens de retifica\u00e7\u00e3o em alta velocidade<\/td><td>Transporte urbano e manuten\u00e7\u00e3o preventiva da rede ferrovi\u00e1ria principal<\/td><\/tr><tr><td><strong>Personalizado \/ OEM<\/strong><\/td><td>GEMAC, conjuntos e unidades padr\u00e3o da Saint-Gobain<\/td><td>Dimens\u00f5es personalizadas (por exemplo, 260 x 90 x 154, 152 x 80 x M20, 120 x 73 x 40)<\/td><\/tr><\/tbody><\/table><hr \/><h2>Perguntas frequentes (FAQ)<\/h2><p>Para d\u00favidas t\u00e9cnicas mais gerais, sinta-se \u00e0 vontade para visitar nossa p\u00e1gina dedicada <a href=\"\/pt\/perguntas-frequentes\/\">P\u00e1gina de Perguntas Frequentes<\/a>.<\/p><div class=\"faq-item\" style=\"margin-bottom: 15px;\"><strong>P: A Jumbo Abrasives \u00e9 um fabricante direto ou uma empresa comercial?<\/strong><br \/>R: A Jumbo Abrasives \u00e9 uma empresa de venda direta <strong>fabricante de pedras de retifica\u00e7\u00e3o para trilhos<\/strong> Fundada em 1996, opera uma f\u00e1brica de 6.000 m\u00b2 em Zhengzhou, Henan, na China, com certifica\u00e7\u00f5es CRCC e ISO.<\/div><div class=\"faq-item\" style=\"margin-bottom: 15px;\"><strong>P: Quais certifica\u00e7\u00f5es oficiais suas pedras de retifica\u00e7\u00e3o ferrovi\u00e1rias possuem?<\/strong><br \/>R: Nossas pedras de retifica\u00e7\u00e3o ferrovi\u00e1rias possuem aprova\u00e7\u00e3o oficial da CRCC, qualifica\u00e7\u00e3o como fornecedor de n\u00edvel A da Rede Ferrovi\u00e1ria Nacional, relat\u00f3rios de testes do laborat\u00f3rio nacional ZZSM, diversas patentes t\u00e9cnicas nacionais na \u00e1rea de abrasivos, certifica\u00e7\u00f5es de gest\u00e3o ISO 9001\/14001\/45001 e conformidade com a norma europeia de seguran\u00e7a CE\/EN 12413.<\/div><div class=\"faq-item\" style=\"margin-bottom: 15px;\"><strong>P: A Jumbo Abrasives pode fabricar produtos com especifica\u00e7\u00f5es personalizadas para m\u00e1quinas de retifica\u00e7\u00e3o especializadas?<\/strong><br \/>R: Sim, oferecemos servi\u00e7os completos de OEM\/ODM. Podemos personalizar dimens\u00f5es, tamanhos de gr\u00e3os, formula\u00e7\u00f5es de gr\u00e3os e dureza da liga\u00e7\u00e3o com base em seus desenhos t\u00e9cnicos ou nas condi\u00e7\u00f5es operacionais pretendidas para a pista.<\/div><div class=\"faq-item\" style=\"margin-bottom: 15px;\"><strong>P: Como posso solicitar amostras ou relat\u00f3rios t\u00e9cnicos oficiais de testes?<\/strong><br \/>R: Voc\u00ea pode entrar em contato com nossa equipe de vendas de engenharia por meio do nosso <a href=\"\/pt\/entre-em-contato-conosco\/\">P\u00e1gina \u201cFale conosco\u201d<\/a> ou diretamente pelo WhatsApp (+86 13699264860) ou por e-mail (RailGrindingWheel@gmail.com). Todas as consultas recebem uma resposta t\u00e9cnica em at\u00e9 24 horas.<\/div><\/div>\n<!-- rgw-internal-links:start --><section class=\"rgw-related-resources\" aria-labelledby=\"rgw-related-heading\"><h2 id=\"rgw-related-heading\">Recursos relacionados \u00e0 retifica\u00e7\u00e3o de trilhos<\/h2><ul><li><a href=\"https:\/\/www.railgrindingwheel.com\/pt\/disco-de-corte\/\">Disco de corte para trilhos<\/a><\/li><li><a href=\"https:\/\/www.railgrindingwheel.com\/pt\/refrentadora-de-trilhos\/\">Rebolo para trilhos<\/a><\/li><li><a href=\"https:\/\/www.railgrindingwheel.com\/pt\/roda-de-trem-de-retificacao-de-trilhos\/\">Trem de retifica\u00e7\u00e3o de trilhos<\/a><\/li><li><a href=\"https:\/\/www.railgrindingwheel.com\/pt\/refres-de-perfil\/\">Rebolo de perfil<\/a><\/li><li><a href=\"https:\/\/www.railgrindingwheel.com\/pt\/entre-em-contato-conosco\/\">Entre em contato com a Jumbo Abrasives \u2013 Fabricante de rebolos<\/a><\/li><\/ul><\/section><!-- rgw-internal-links:end -->\n\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>","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. CRCC certified A-level national railway supplier of resin-bonded grinding wheels for Loram, Harsco, and Vossloh.\" \/>\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\/pt\/sobre-nos\/\" \/>\n<meta property=\"og:locale\" content=\"pt_BR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"About Us\" \/>\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\" content=\"https:\/\/www.railgrindingwheel.com\/pt\/sobre-nos\/\" \/>\n<meta property=\"og:site_name\" content=\"Rail Grinding Wheel\" \/>\n<meta property=\"article:publisher\" content=\"https:\/\/www.facebook.com\/people\/Jumbo-Abrasives-Company\/100088416174057\/\" \/>\n<meta property=\"article:modified_time\" content=\"2026-09-07T14:18:42+00:00\" \/>\n<meta property=\"og:image\" content=\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2025\/09\/\u5c55\u4f1a2.webp\" \/>\n\t<meta property=\"og:image:width\" content=\"857\" \/>\n\t<meta property=\"og:image:height\" content=\"386\" \/>\n\t<meta property=\"og:image:type\" content=\"image\/webp\" \/>\n<meta name=\"twitter:card\" content=\"summary_large_image\" \/>\n<meta name=\"twitter:site\" content=\"@ShaoJunying\" \/>\n<meta name=\"twitter:label1\" content=\"Est. tempo de leitura\" \/>\n\t<meta name=\"twitter:data1\" content=\"5 minutos\" \/>\n<script type=\"application\/ld+json\" class=\"yoast-schema-graph\">{\"@context\":\"https:\/\/schema.org\",\"@graph\":[{\"@type\":\"WebPage\",\"@id\":\"https:\/\/www.railgrindingwheel.com\/about-us\/\",\"url\":\"https:\/\/www.railgrindingwheel.com\/about-us\/\",\"name\":\"About Jumbo Abrasives | Rail Grinding Stone Manufacturer\",\"isPartOf\":{\"@id\":\"https:\/\/www.railgrindingwheel.com\/#website\"},\"primaryImageOfPage\":{\"@id\":\"https:\/\/www.railgrindingwheel.com\/about-us\/#primaryimage\"},\"image\":{\"@id\":\"https:\/\/www.railgrindingwheel.com\/about-us\/#primaryimage\"},\"thumbnailUrl\":\"https:\/\/www.railgrindingwheel.com\/wp-content\/uploads\/2025\/09\/\u5c55\u4f1a2.webp\",\"datePublished\":\"2026-08-12T02:32:28+00:00\",\"dateModified\":\"2026-09-07T14:18:42+00:00\",\"description\":\"Learn about Jumbo Abrasives, a leading Chinese rail grinding stone manufacturer since 1996. 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