{"id":47820,"date":"2025-06-16T19:17:00","date_gmt":"2025-06-16T19:17:00","guid":{"rendered":"https:\/\/ncservo.com\/?post_type=product&#038;p=47820"},"modified":"2026-03-25T17:40:18","modified_gmt":"2026-03-25T17:40:18","slug":"rexroth-4wrte-42m-2","status":"publish","type":"product","link":"https:\/\/ncservo.com\/.wp-toolkit_m\/product\/rexroth-4wrte-42m-2\/","title":{"rendered":"REXROTH 4WRTE-42\/M"},"content":{"rendered":"<div id=\"wb-overview\" class=\"wordbank-container\">\n<h2>About This Unit<\/h2>\n<p>We&#8217;ve serviced hundreds of REXROTH 4WRTE-42\/M units over the years. Each one goes through the same controlled teardown, parts replacement, and testing process.<\/p>\n<\/div>\n<div id=\"wb-what-we-do\" class=\"wordbank-container\">\n<h2>Inspection and Repair Process<\/h2>\n<p>Our repair process for the REXROTH 4WRTE-42\/M begins with teardown and ultrasonic cleaning to assess all components.<\/p>\n<\/div>\n<div id=\"wb-faq\" class=\"wordbank-container\">\n<h2>Frequently Asked Questions<\/h2>\n<div class=\"faq-accordion\">\n<div class=\"faq-item\">\n<h3><button aria-expanded=\"true\" aria-controls=\"faq-content-0\">Will I be contacted if the unit is beyond repair?<\/button><\/h3>\n<div id=\"faq-content-0\" class=\"faq-content\">\n<p>Yes. If the unit can&#8217;t be repaired, we contact you with options before doing anything further.<\/p>\n<\/div><\/div>\n<div class=\"faq-item\">\n<h3><button aria-expanded=\"true\" aria-controls=\"faq-content-1\">Is it possible to repair a unit without full labeling or ID?<\/button><\/h3>\n<div id=\"faq-content-1\" class=\"faq-content\">\n<p>Yes. Send us photos of the unit from multiple angles. Our team has serviced thousands of models and can often ID them visually.<\/p>\n<\/div><\/div>\n<div class=\"faq-item\">\n<h3><button aria-expanded=\"true\" aria-controls=\"faq-content-2\">When should I repair a unit versus replacing it?<\/button><\/h3>\n<div id=\"faq-content-2\" class=\"faq-content\">\n<p>In most cases, repair costs less than replacement, especially for legacy or OEM-specific models. We evaluate every unit and let you know what makes sense.<\/p>\n<\/div><\/div>\n<div class=\"faq-item\">\n<h3><button aria-expanded=\"true\" aria-controls=\"faq-content-3\">Do you offer emergency or expedited repairs?<\/button><\/h3>\n<div id=\"faq-content-3\" class=\"faq-content\">\n<p>Expedited options are available depending on current scheduling. Contact us to discuss your timeline.<\/p>\n<\/div><\/div>\n<div class=\"faq-item\">\n<h3><button aria-expanded=\"true\" aria-controls=\"faq-content-4\">Should I degrease or rinse the unit first?<\/button><\/h3>\n<div id=\"faq-content-4\" class=\"faq-content\">\n<p>You can send it as-is. We handle all cleaning and preparation as part of our standard process.<\/p>\n<\/div><\/div>\n<\/p><\/div>\n<\/div>\n<div id=\"wb-why-us\" class=\"wordbank-container\">\n<h2>About Our Shop<\/h2>\n<p>NC Servo specializes in both valves and electronic controls, which lets us operate without the delays of OEM service centers.<\/p>\n<p>Specializing in REXROTH 4WRTE-42\/M servo valve technology for over five decades<\/p>\n<\/div>\n<div id=\"wb-process\" class=\"wordbank-container\">\n<h2>Rebuild Steps<\/h2>\n<p>Once a valve arrives, we tear it down fully, examine key surfaces, and replace worn or damaged parts using components we stock in-house, cutting out OEM lead times.<\/p>\n<ul>\n<li>Cleaning: Units go through a mineral bath, with ultrasonic cleaning used for delicate internals.<\/li>\n<li>Final Performance Verification: After reassembly, each valve undergoes bench-testing against published performance specs.<\/li>\n<li>Seal and Gasket Replacement: Worn seals and gaskets are replaced with new components during every rebuild.<\/li>\n<li>In-House Parts Sourcing: Many repairs use components sourced from our inventory of 17,000+ units.<\/li>\n<\/ul>\n<\/div>\n<div id=\"wb-testing\" class=\"wordbank-container\">\n<h2>Testing and Bench Verification<\/h2>\n<p>With our 13-stand test facility and a Hagenbush proportional valve system, we verify flow curves, hysteresis, frequency response, and more. Performance reports and graphs are available for purchase on request. Our performance testing verifies consistent performance.<\/p>\n<\/div>\n<div id=\"wb-service-offerings\" class=\"wordbank-container new-dynamic-section\">\n<h2>Repair, Rebuild and Exchange Options<\/h2>\n<p>Beyond standard maintenance, we offer specialized repairs for your REXROTH 4WRTE-42\/M unit. Our teardown process includes pressure testing and internal inspection, using only new replacement components.<\/p>\n<\/div>\n<div id=\"wb-inventory\" class=\"wordbank-container new-dynamic-section\">\n<h2>Parts and Inventory<\/h2>\n<p>With an extensive stock of 17,000+ valves, we can often provide faster turnaround by sourcing parts in-house rather than waiting on OEM lead times.<\/p>\n<\/div>\n<div id=\"wb-product-data\" class=\"wordbank-container new-dynamic-section\">\n<h2>Data Sheets &#038; Reports<\/h2>\n<p>For detailed insights into your REXROTH 4WRTE-42\/M, we can provide access to repair records and reports. This transparency offers you peace of mind and aids in long-term maintenance planning.<\/p>\n<\/div>\n<div id=\"wb-tips\" class=\"wordbank-container\">\n<h2>Maintenance Tips<\/h2>\n<ul>\n<li>Check valve alignment carefully to prevent undue stress on internal components.<\/li>\n<li>Schedule preventive maintenance intervals based on duty cycle, not just calendar time.<\/li>\n<li>Store spare REXROTH 4WRTE-42\/M valves in a clean, dry environment to prevent corrosion and contamination.<\/li>\n<\/ul>\n<\/div>\n<div id=\"wb-cta\" class=\"wordbank-container\">\n<div class=\"cta-section\">\n<h2>Get an Expert Repair for Your REXROTH 4WRTE-42\/M<\/h2>\n<p>Request pricing, availability, and turnaround for your REXROTH 4WRTE-42\/M. NC Servo provides independent repair with a 1-year warranty. Contact us to set up your repair.<\/p>\n<div class=\"cta-buttons\"><a href=\"https:\/\/ncservo.com\/.wp-toolkit_m\/contact-us\/\" class=\"button quote-button\">Request a Quote<\/a> <a href=\"https:\/\/ncservo.com\/.wp-toolkit_m\/rexroth\/\" class=\"button brand-button\">View All REXROTH Products<\/a> <a href=\"https:\/\/ncservo.com\/.wp-toolkit_m\/brand\/rexroth\/\" class=\"button inventory-button\">Shop REXROTH Inventory<\/a><\/div>\n<\/div>\n<\/div>\n<div class=\"disclaimer-section\">\n<p class=\"disclaimer\"><strong>NC Servo<\/strong> is an independent third-party repair facility. We are not affiliated with, endorsed by, sponsored by, or authorized by REXROTH or any original equipment manufacturer (OEM), nor do we claim to be a REXROTH service center. All brand names, trademarks, model numbers, and part numbers referenced on this page are the property of their respective owners and are used solely for identification and compatibility purposes.<\/p>\n<\/div>\n","protected":false},"excerpt":{"rendered":"<div id=\"wb-short-description\" class=\"short-description-container\">\n<p>For REXROTH 4WRTE-42\/M valve repair, NC Servo Tech offers teardown, rebuild, and testing, backed by a one-year warranty on parts and labor.<\/p>\n<\/div>\n","protected":false},"featured_media":57966,"template":"","meta":[],"product_brand":[562],"product_cat":[2464],"product_tag":[152],"class_list":{"0":"post-47820","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_brand-rexroth","7":"product_cat-rexroth-hydraulic-valves","8":"product_tag-valve","10":"first","11":"outofstock","12":"shipping-taxable","13":"product-type-simple"},"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v27.3 - https:\/\/yoast.com\/product\/yoast-seo-wordpress\/ -->\n<title>REXROTH 4WRTE-42\/M Proportional Valve Repair<\/title>\n<meta name=\"description\" content=\"Get independent, reliable valve repair for your REXROTH 4WRTE-42\/M. 1-year warranty on parts and labor. 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