{"id":28452,"date":"2026-04-26T06:51:50","date_gmt":"2026-04-26T06:51:50","guid":{"rendered":"https:\/\/doingcable.com\/?post_type=product&#038;p=28452"},"modified":"2026-06-07T13:20:51","modified_gmt":"2026-06-07T13:20:51","slug":"insulation-and-sheathing-extrusionproduction-line","status":"publish","type":"product","link":"https:\/\/doingcable.com\/ar\/product\/insulation-and-sheathing-extrusionproduction-line\/","title":{"rendered":"\u0645\u0635\u0646\u0639 \u0648\u0645\u0648\u0631\u062f \u062e\u0637\u0648\u0637 \u0625\u0646\u062a\u0627\u062c \u0628\u062b\u0642 \u0627\u0644\u0639\u0632\u0644 \u0639\u0627\u0644\u064a \u0627\u0644\u0633\u0631\u0639\u0629"},"content":{"rendered":"<p dir=\"auto\">In the competitive wire and cable industry, the insulation and sheathing stage is decisive for achieving superior electrical performance, mechanical strength, fire safety, and decades of reliable service life. The <strong>\u062e\u0637 \u0625\u0646\u062a\u0627\u062c \u0627\u0644\u0639\u0632\u0644 \u0648\u0627\u0644\u062a\u063a\u0644\u064a\u0641 \u0628\u0627\u0644\u0628\u062b\u0642<\/strong> (models REK-100, REK-120, REK-150, REK-180) is an advanced <strong>building wire extrusion line<\/strong> engineered for high-precision extrusion of PVC, PE, XLPE, and Low Smoke Halogen-Free (LSHF\/HFFR) compounds onto power cables, building wires, control cables, and telephone lines.<\/p>\n<p dir=\"auto\">This robust <strong>extrusion machine for THHN cables<\/strong> \u0648 <strong>extrusion machine for THHN wires<\/strong> supports conductor cross-sections from 10\u20131000 mm\u00b2 and finished diameters up to \u03a6140 mm, with maximum line speeds reaching 180 m\/min. It excels in both single-layer insulation and dual-layer (insulation + sheath) processes, including tandem nylon jacketing for premium THHN\/THWN conductors.<\/p>\n<p dir=\"auto\"><img fetchpriority=\"high\" decoding=\"async\" class=\"alignnone wp-image-30596\" src=\"https:\/\/doingcable.com\/wp-content\/uploads\/2026\/04\/Insulation-and-Sheathing-Extrusion-Production-Line-in-modern-cable-factory.jpg\" alt=\"Insulation and Sheathing Extrusion Production Line in modern cable factory\" width=\"791\" height=\"527\" srcset=\"https:\/\/doingcable.com\/wp-content\/uploads\/2026\/04\/Insulation-and-Sheathing-Extrusion-Production-Line-in-modern-cable-factory.jpg 900w, https:\/\/doingcable.com\/wp-content\/uploads\/2026\/04\/Insulation-and-Sheathing-Extrusion-Production-Line-in-modern-cable-factory-400x267.jpg 400w, https:\/\/doingcable.com\/wp-content\/uploads\/2026\/04\/Insulation-and-Sheathing-Extrusion-Production-Line-in-modern-cable-factory-768x512.jpg 768w, https:\/\/doingcable.com\/wp-content\/uploads\/2026\/04\/Insulation-and-Sheathing-Extrusion-Production-Line-in-modern-cable-factory-18x12.jpg 18w, https:\/\/doingcable.com\/wp-content\/uploads\/2026\/04\/Insulation-and-Sheathing-Extrusion-Production-Line-in-modern-cable-factory-430x287.jpg 430w, https:\/\/doingcable.com\/wp-content\/uploads\/2026\/04\/Insulation-and-Sheathing-Extrusion-Production-Line-in-modern-cable-factory-700x467.jpg 700w, https:\/\/doingcable.com\/wp-content\/uploads\/2026\/04\/Insulation-and-Sheathing-Extrusion-Production-Line-in-modern-cable-factory-250x167.jpg 250w\" sizes=\"(max-width: 791px) 100vw, 791px\" \/><\/p>\n<h2 dir=\"auto\">Why Precision Insulation &amp; Sheathing Matters<\/h2>\n<p dir=\"auto\">High-quality extrusion directly impacts:<\/p>\n<ul dir=\"auto\">\n<li>Dielectric strength and long-term electrical reliability<\/li>\n<li>Mechanical protection against abrasion, impact and environmental stress<\/li>\n<li>Fire performance (flame retardancy, low smoke, halogen-free properties)<\/li>\n<li>Ease of installation (low-friction nylon jackets for THHN conduit pulling)<\/li>\n<li>Overall cable lifespan and total cost of ownership<\/li>\n<\/ul>\n<p dir=\"auto\">RLB\u2019s closed-loop automation and optimized screw designs ensure uniform wall thickness, superior concentricity and repeatable quality across high-volume production runs.<\/p>\n<h3 dir=\"auto\">Advanced Features &amp; Process Control<\/h3>\n<ul dir=\"auto\">\n<li>\n<p dir=\"auto\"><strong>Flexible Material Compatibility<\/strong>: Optimized screw geometry and multi-zone temperature control deliver excellent melt homogeneity for PVC (cost-effective, easy processing), XLPE (superior heat resistance 90\u2013110\u00b0C, moisture\/chemical resistance), PE, and LSHF\/HFFR compounds \u2014 minimizing scorch risk and ensuring consistent crosslinking where required.<\/p>\n<\/li>\n<li><strong>Intelligent Automation &amp; Closed-Loop Control<\/strong>: Mitsubishi PLC + MMI system with real-time laser diameter feedback guarantees outstanding concentricity, uniform wall thickness (\u00b15% tolerance), and repeatable quality \u2014 critical for meeting strict UL 83, IEC 60502, and GB standards.<\/li>\n<li><strong>THHN-Specific Tandem Extrusion Capability<\/strong>: Dedicated configuration for PVC insulation + Nylon (PA) outer jacket in a single pass, delivering the abrasion resistance, low-friction conduit pulling, and chemical protection demanded by modern THHN\/THWN building wires.<\/li>\n<li><strong>Comprehensive Auxiliary Integration<\/strong>: On-line aluminum strip taping, asphalt\/graphite coating, automatic feeding, granule dryers, color masterbatch metering, laser\/ink printers, spark testers, diameter gauges, and stamping machines for full turnkey operation.<\/li>\n<\/ul>\n<ul dir=\"auto\">\n<li><strong>Configurable Downstream Flexibility<\/strong>: Multiple pay-off\/take-up options (drum, coil, dual) ensure minimal downtime and seamless integration with your existing <strong>building wire extrusion line<\/strong> layout.<\/li>\n<\/ul>\n<p dir=\"auto\">The result is cables with smooth surface finish, outstanding electrical properties, and full compliance with international standards \u2014 produced with maximum throughput and minimum material waste.<\/p>\n<p dir=\"auto\"><img decoding=\"async\" class=\"alignnone wp-image-28968\" src=\"https:\/\/doingcable.com\/wp-content\/uploads\/2026\/04\/3600e65507109761908f18a9e7cef80.png\" alt=\"Machines for the production of high and extra-high voltage cables\" width=\"788\" height=\"525\" srcset=\"https:\/\/doingcable.com\/wp-content\/uploads\/2026\/04\/3600e65507109761908f18a9e7cef80.png 1000w, https:\/\/doingcable.com\/wp-content\/uploads\/2026\/04\/3600e65507109761908f18a9e7cef80-400x267.png 400w, https:\/\/doingcable.com\/wp-content\/uploads\/2026\/04\/3600e65507109761908f18a9e7cef80-768x512.png 768w, https:\/\/doingcable.com\/wp-content\/uploads\/2026\/04\/3600e65507109761908f18a9e7cef80-430x287.png 430w, https:\/\/doingcable.com\/wp-content\/uploads\/2026\/04\/3600e65507109761908f18a9e7cef80-700x467.png 700w, https:\/\/doingcable.com\/wp-content\/uploads\/2026\/04\/3600e65507109761908f18a9e7cef80-150x100.png 150w\" sizes=\"(max-width: 788px) 100vw, 788px\" \/><\/p>\n<h4 dir=\"auto\">\u0627\u0644\u0645\u0648\u0627\u0635\u0641\u0627\u062a \u0627\u0644\u0641\u0646\u064a\u0629<\/h4>\n<table style=\"height: 152px;\" width=\"1038\">\n<thead>\n<tr>\n<th data-col-size=\"xs\">\u0646\u0645\u0648\u0630\u062c<\/th>\n<th data-col-size=\"md\">Conductor Cross Section<\/th>\n<th data-col-size=\"md\">Finished Diameter<\/th>\n<th data-col-size=\"md\">Max. Line Speed<\/th>\n<th data-col-size=\"xl\">Typical Applications<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td data-col-size=\"xs\">REK-100<\/td>\n<td data-col-size=\"md\">10 \u2013 240 mm\u00b2<\/td>\n<td data-col-size=\"md\">Up to 45 mm<\/td>\n<td data-col-size=\"md\">180 m\/min<\/td>\n<td data-col-size=\"xl\">Building wires, small power cables<\/td>\n<\/tr>\n<tr>\n<td data-col-size=\"xs\">REK-120<\/td>\n<td data-col-size=\"md\">25 \u2013 630 mm\u00b2<\/td>\n<td data-col-size=\"md\">Up to 80 mm<\/td>\n<td data-col-size=\"md\">150 m\/min<\/td>\n<td data-col-size=\"xl\">Medium building &amp; power cables<\/td>\n<\/tr>\n<tr>\n<td data-col-size=\"xs\">REK-150<\/td>\n<td data-col-size=\"md\">50 \u2013 800 mm\u00b2<\/td>\n<td data-col-size=\"md\">Up to 100 mm<\/td>\n<td data-col-size=\"md\">60 m\/min<\/td>\n<td data-col-size=\"xl\">Power cables, control cables<\/td>\n<\/tr>\n<tr>\n<td data-col-size=\"xs\">REK-180<\/td>\n<td data-col-size=\"md\">120 \u2013 1000 mm\u00b2<\/td>\n<td data-col-size=\"md\">Up to 140 mm<\/td>\n<td data-col-size=\"md\">45 m\/min<\/td>\n<td data-col-size=\"xl\">Large power cables, specialty cables<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p dir=\"auto\">Notes: Custom configurations, higher-capacity models and specialized XLPE crosslinking (steam or silane) systems available upon request. Line speed depends on compound, wall thickness and cooling requirements.<\/p>\n<h3 dir=\"auto\">\u0627\u0644\u062a\u0637\u0628\u064a\u0642\u0627\u062a \u0627\u0644\u0623\u0633\u0627\u0633\u064a\u0629 \u0641\u064a \u062a\u0635\u0646\u064a\u0639 \u0627\u0644\u0643\u0627\u0628\u0644\u0627\u062a<\/h3>\n<p dir=\"auto\"><strong>Power Cables<\/strong> Low-, medium- and high-voltage cables requiring XLPE or LSHF insulation and sheathing for excellent electrical and fire performance.<\/p>\n<p dir=\"auto\"><strong>Building &amp; Installation Wires<\/strong> PVC-insulated and sheathed cables (BV, BVV, NYY) and premium THHN\/THWN conductors with tandem nylon jacketing for superior abrasion resistance and installation ease.<\/p>\n<p dir=\"auto\"><strong>\u0643\u0627\u0628\u0644\u0627\u062a \u0627\u0644\u062a\u062d\u0643\u0645 \u0648\u0627\u0644\u0623\u062c\u0647\u0632\u0629<\/strong> Precise, concentric insulation and sheathing for reliable signal transmission in industrial environments.<\/p>\n<p dir=\"auto\"><strong>Telecommunication &amp; Data Cables<\/strong> High-quality PE or LSHF compounds for LAN, telephone and data cables.<\/p>\n<p dir=\"auto\"><strong>\u0643\u0627\u0628\u0644\u0627\u062a \u0645\u062a\u062e\u0635\u0635\u0629<\/strong> Flame-retardant, fire-resistant and low-smoke halogen-free constructions meeting the most demanding international fire safety standards.<\/p>\n<p dir=\"auto\"><img decoding=\"async\" class=\"alignnone size-full wp-image-30597\" src=\"https:\/\/doingcable.com\/wp-content\/uploads\/2026\/04\/Finished-THHN-and-THWN-building-wires-\u2013-typical-high-quality-output.webp\" alt=\"Finished THHN and THWN building wires \u2013 typical high-quality output\" width=\"900\" height=\"600\" srcset=\"https:\/\/doingcable.com\/wp-content\/uploads\/2026\/04\/Finished-THHN-and-THWN-building-wires-\u2013-typical-high-quality-output.webp 900w, https:\/\/doingcable.com\/wp-content\/uploads\/2026\/04\/Finished-THHN-and-THWN-building-wires-\u2013-typical-high-quality-output-400x267.webp 400w, https:\/\/doingcable.com\/wp-content\/uploads\/2026\/04\/Finished-THHN-and-THWN-building-wires-\u2013-typical-high-quality-output-768x512.webp 768w, https:\/\/doingcable.com\/wp-content\/uploads\/2026\/04\/Finished-THHN-and-THWN-building-wires-\u2013-typical-high-quality-output-18x12.webp 18w, https:\/\/doingcable.com\/wp-content\/uploads\/2026\/04\/Finished-THHN-and-THWN-building-wires-\u2013-typical-high-quality-output-430x287.webp 430w, https:\/\/doingcable.com\/wp-content\/uploads\/2026\/04\/Finished-THHN-and-THWN-building-wires-\u2013-typical-high-quality-output-700x467.webp 700w, https:\/\/doingcable.com\/wp-content\/uploads\/2026\/04\/Finished-THHN-and-THWN-building-wires-\u2013-typical-high-quality-output-250x167.webp 250w\" sizes=\"(max-width: 900px) 100vw, 900px\" \/><\/p>\n<h3 dir=\"auto\">\u0645\u0635\u0645\u0645 \u0644\u062a\u062d\u0642\u064a\u0642 \u0627\u0644\u0645\u0648\u062b\u0648\u0642\u064a\u0629 \u0648\u0627\u0644\u0643\u0641\u0627\u0621\u0629 \u0648\u0639\u0627\u0626\u062f \u0627\u0633\u062a\u062b\u0645\u0627\u0631 \u0637\u0648\u064a\u0644 \u0627\u0644\u0623\u062c\u0644<\/h3>\n<p dir=\"auto\">Manufactured by RLB (Jiangsu Reliable Industry Co., Ltd.) \u2014 a proven specialist in wire and cable machinery \u2014 every component of this Insulation and Sheathing Extrusion Production Line is built for 24\/7 continuous operation with minimal maintenance.<\/p>\n<p dir=\"auto\"><strong>Compared with conventional extrusion lines, the RLB solution delivers:<\/strong><\/p>\n<ul dir=\"auto\">\n<li>Superior concentricity and wall thickness uniformity (\u00b15 % tolerance)<\/li>\n<li>Significantly reduced scrap rates through closed-loop laser diameter control<\/li>\n<li>Lower operating costs via energy-efficient material processing and high line speeds<\/li>\n<li>Full compliance with IEC 60502, UL 83, BS and customer-specific requirements<\/li>\n<li>Seamless integration with upstream conductor drawing\/stranding lines and downstream armoring or jacketing equipment<\/li>\n<\/ul>\n<p dir=\"auto\">Whether you produce standard PVC building wires or high-performance XLPE, LSHF or THHN\/THWN cables, this cable extruder machine provides the technical reliability, production flexibility and long-term partnership modern cable manufacturers demand.<\/p>\n<h3 dir=\"auto\">Built for Global Standards &amp; Turnkey Partnership<\/h3>\n<p dir=\"auto\">RLB offers complete turnkey solutions including engineering design, equipment supply, installation supervision, commissioning, operator training and ongoing technical support. Custom configurations are available to match your exact conductor range, compound types, line speed targets and factory layout requirements.<\/p>\n<p dir=\"auto\">With proven technology, robust construction and comprehensive after-sales service, the RLB Insulation and Sheathing Extrusion Production Line represents a reliable, high-ROI investment for cable producers worldwide.<\/p>\n<p dir=\"auto\"><strong>Ready to elevate your insulation and sheathing production quality and efficiency?<\/strong><\/p>\n<p dir=\"auto\"><a href=\"https:\/\/doingcable.com\/ar\/\"><strong>\u0627\u0633\u062a\u0641\u0633\u0631 \u0627\u0644\u0622\u0646<\/strong><\/a> for a detailed technical quotation, custom configuration options, layout design recommendations or factory visit arrangement. Our engineering team provides complete turnkey solutions, installation support, operator training and long-term technical partnership tailored to your production goals.<\/p>\n<h3 dir=\"auto\">Frequently Asked Questions<\/h3>\n<p dir=\"auto\"><strong>What materials can the RLB Insulation and Sheathing Extrusion Production Line process?<\/strong><\/p>\n<p dir=\"auto\">The line is optimized for PVC, PE, XLPE and Low Smoke Halogen-Free (LSHF\/HFFR) compounds. Dedicated tandem configurations also support Nylon (PA) jacketing for THHN\/THWN wires.<\/p>\n<p dir=\"auto\"><strong>What is the advantage of tandem extrusion for THHN\/THWN cables?<\/strong><\/p>\n<p dir=\"auto\">Tandem extrusion applies PVC insulation and Nylon outer jacket in a single continuous pass, delivering superior abrasion resistance, chemical protection and low-friction properties required for easy conduit pulling while reducing handling and improving productivity.<\/p>\n<p dir=\"auto\"><strong>How does closed-loop control improve quality?<\/strong><\/p>\n<p dir=\"auto\">Real-time laser diameter measurement feeds back to the PLC, automatically adjusting extruder output to maintain tight tolerances on wall thickness and concentricity \u2014 dramatically reducing scrap and ensuring consistent compliance with UL, IEC and GB standards.<\/p>\n<p dir=\"auto\"><strong>What standards does the line support?<\/strong><\/p>\n<p dir=\"auto\">The equipment is designed to produce cables meeting or exceeding UL 83 (THHN\/THWN), IEC 60502 (power cables), BS standards and GB\/T requirements for building wires and power cables.<\/p>\n<p dir=\"auto\"><strong>Can the line be integrated with existing cable production equipment?<\/strong><\/p>\n<p dir=\"auto\">Yes. RLB specializes in turnkey solutions and can configure pay-off\/take-up systems, auxiliary equipment and control interfaces to integrate seamlessly with your existing drawing, stranding or armoring lines.<\/p>","protected":false},"excerpt":{"rendered":"<p dir=\"auto\">The Insulation and Sheathing Extrusion Production Line is a versatile, high-performance cable extruder machine designed for precise single- or dual-layer extrusion of PVC, XLPE, PE and Low Smoke Halogen-Free (LSHF\/HFFR) compounds. Ideal for building wires (including THHN\/THWN with nylon jacketing), power cables, control cables and specialty constructions requiring excellent concentricity, uniform wall thickness and full compliance with UL 83, IEC 60502 and GB standards.<\/p>","protected":false},"featured_media":29629,"comment_status":"open","ping_status":"closed","template":"","meta":{"_joinchat":[]},"product_brand":[],"product_cat":[21,80,86],"product_tag":[938,953,951,952,950,956,958,955,949,957,959,954],"class_list":{"0":"post-28452","1":"product","2":"type-product","3":"status-publish","4":"has-post-thumbnail","6":"product_cat-all-product","7":"product_cat-cable-machinery","8":"product_cat-insulation-and-sheath-extrusion-production-line","9":"product_tag-building-wire-extrusion-production-line","10":"product_tag-cable-sheathing-line","11":"product_tag-extrusion-machine-for-thhn-cables","12":"product_tag-extrusion-machine-for-thhn-wires","13":"product_tag-insulation-and-sheathing-extrusion-production-line","14":"product_tag-lshf-sheathing-machine","15":"product_tag-power-cable-extrusion","16":"product_tag-pvc-cable-extrusion-line","17":"product_tag-rlb-cable-machinery","18":"product_tag-thhn-nylon-jacket-line","19":"product_tag-turnkey-cable-extrusion-solutions","20":"product_tag-xlpe-insulation-extruder","22":"first","23":"instock","24":"shipping-taxable","25":"product-type-simple"},"_links":{"self":[{"href":"https:\/\/doingcable.com\/ar\/wp-json\/wp\/v2\/product\/28452","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/doingcable.com\/ar\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/doingcable.com\/ar\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/doingcable.com\/ar\/wp-json\/wp\/v2\/comments?post=28452"}],"version-history":[{"count":6,"href":"https:\/\/doingcable.com\/ar\/wp-json\/wp\/v2\/product\/28452\/revisions"}],"predecessor-version":[{"id":30599,"href":"https:\/\/doingcable.com\/ar\/wp-json\/wp\/v2\/product\/28452\/revisions\/30599"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/doingcable.com\/ar\/wp-json\/wp\/v2\/media\/29629"}],"wp:attachment":[{"href":"https:\/\/doingcable.com\/ar\/wp-json\/wp\/v2\/media?parent=28452"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/doingcable.com\/ar\/wp-json\/wp\/v2\/product_brand?post=28452"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/doingcable.com\/ar\/wp-json\/wp\/v2\/product_cat?post=28452"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/doingcable.com\/ar\/wp-json\/wp\/v2\/product_tag?post=28452"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}