{"id":671,"date":"2025-11-28T11:44:48","date_gmt":"2025-11-28T03:44:48","guid":{"rendered":"https:\/\/www.dstpvc.com\/?post_type=products&p=671"},"modified":"2026-01-29T09:59:31","modified_gmt":"2026-01-29T01:59:31","slug":"dst-pvc-granules-for-electric-cables-coating","status":"publish","type":"products","link":"https:\/\/www.dstpvc.com\/es\/products\/dst-pvc-granules-for-electric-cables-coating\/","title":{"rendered":"Gr\u00e1nulos de PVC DST para revestimiento de cables el\u00e9ctricos"},"content":{"rendered":"

Electric Cable Manufacturing Process Using PVC Granules<\/strong><\/h1>\n

The manufacturing of electric cables with PVC insulation or sheathing typically involves the following eight major steps<\/strong>:<\/p>\n

\n

1. Raw Material Preparation<\/strong><\/h2>\n

PVC Granules Selection<\/strong><\/h3>\n

\"Dst<\/strong><\/h3>\n

Factories choose specific PVC compounds depending on cable type:<\/p>\n

    \n
  • \n

    PVC insulation granules<\/strong> (for conductor insulation)<\/p>\n<\/li>\n

  • \n

    PVC sheathing granules<\/strong> (for outer jacket protection)<\/p>\n<\/li>\n

  • \n

    Specialized PVC compounds<\/strong> (e.g., flame-retardant, low-smoke, high-flexibility, anti-cold)<\/p>\n<\/li>\n<\/ul>\n

    Before use, PVC granules are normally:<\/p>\n

      \n
    • \n

      dried (to remove moisture)<\/p>\n<\/li>\n

    • \n

      pre-mixed with stabilizers or color masterbatch (if needed)<\/p>\n<\/li>\n<\/ul>\n

      \n

      2. Copper\/Aluminum Wire Drawing<\/strong><\/h2>\n

      Large copper or aluminum rods are drawn through a series of dies to reduce the diameter.<\/p>\n

      Process:<\/strong>
      Rod \u2192 Annealing machine \u2192 Multi-die drawing \u2192 Fine wire \u2192 Take-up reel<\/p>\n

      The goal is to produce smooth, uniform strands suitable for conductor stranding.<\/p>\n

      \n

      3. Conductor Stranding<\/strong><\/h2>\n

      Multiple drawn wires are twisted together to form a conductor with:<\/p>\n

        \n
      • \n

        higher flexibility<\/p>\n<\/li>\n

      • \n

        better electrical performance<\/p>\n<\/li>\n<\/ul>\n

        Types of stranding:<\/p>\n

          \n
        • \n

          Tight-stranded<\/p>\n<\/li>\n

        • \n

          Sector-shaped<\/p>\n<\/li>\n

        • \n

          Concentric<\/p>\n<\/li>\n

        • \n

          Compacted (for power cables)<\/p>\n<\/li>\n<\/ul>\n

          \n

          4. PVC Granules Extrusion for Insulation<\/strong><\/h2>\n

          This is the critical stage where PVC granules are melted and applied<\/strong> onto the conductor.<\/p>\n

          Extrusion Steps:<\/strong><\/h3>\n
            \n
          1. \n

            PVC granules fed into the extruder hopper<\/strong><\/p>\n<\/li>\n

          2. \n

            Heated in barrel (160\u2013190\u00b0C depending on formulation)<\/p>\n<\/li>\n

          3. \n

            Melt passes through screw compression<\/p>\n<\/li>\n

          4. \n

            Melted PVC is extruded around conductor<\/p>\n<\/li>\n

          5. \n

            Cooled in water trough<\/p>\n<\/li>\n

          6. \n

            Spark tester checks insulation purity<\/p>\n<\/li>\n<\/ol>\n

            Result:<\/strong>
            A perfectly round PVC-insulated conductor<\/strong>.<\/p>\n

            \n

            5. Twisting \/ Cabling (If Multi-core Cable)<\/strong><\/h2>\n

            For multi-core cables (2, 3, 4, or more insulated wires), the insulated conductors are twisted together.<\/p>\n

            May include:<\/p>\n

              \n
            • \n

              que asegure la resistencia y durabilidad necesarias.<\/p>\n<\/li>\n

            • \n

              binding tape<\/p>\n<\/li>\n

            • \n

              separator layers<\/p>\n<\/li>\n<\/ul>\n

              This ensures cable roundness and mechanical stability.<\/p>\n

              \n

              6. PVC Sheathing Extrusion (Outer Jacket)<\/strong><\/h2>\n

              A second extrusion process applies the outer PVC sheath<\/strong>.<\/p>\n

              PVC sheathing material must provide:<\/p>\n

                \n
              • \n

                abrasion resistance<\/p>\n<\/li>\n

              • \n

                weather and UV resistance<\/p>\n<\/li>\n

              • \n

                flame retardancy<\/p>\n<\/li>\n

              • \n

                mechanical strength<\/p>\n<\/li>\n<\/ul>\n

                Process is similar to insulation extrusion:
                \nPVC granules \u2192 Extruder \u2192 Melt \u2192 Crosshead die \u2192 Cable sheathing \u2192 Cooling \u2192 Printing<\/p>\n

                \n

                7. Printing & Meter Marking<\/strong><\/h2>\n

                The finished cable is printed with:<\/p>\n

                  \n
                • \n

                  cable type<\/p>\n<\/li>\n

                • \n

                  size<\/p>\n<\/li>\n

                • \n

                  voltage rating<\/p>\n<\/li>\n

                • \n

                  length marking<\/p>\n<\/li>\n

                • \n

                  manufacturing date \/ batch<\/p>\n<\/li>\n<\/ul>\n

                  Inkjet printers are used during line operation.<\/p>\n

                  \n

                  8. Winding, Packaging, and Quality Inspection<\/strong><\/h2>\n

                  Final steps include:<\/p>\n

                    \n
                  • \n

                    winding onto coils or drums<\/p>\n<\/li>\n

                  • \n

                    visual inspection<\/p>\n<\/li>\n

                  • \n

                    electrical tests (resistance, dielectric strength, spark testing)<\/p>\n<\/li>\n

                  • \n

                    mechanical tests (tensile, elongation, ageing)<\/p>\n<\/li>\n<\/ul>\n

                    Once approved, cables are packaged and ready for shipment.<\/p>","protected":false},"excerpt":{"rendered":"

                    Our PVC granules feature a precision-designed formulation developed specifically for electric cable manufacturing, ensuring smooth extrusion, stable performance, and reliable long-term durability.<\/p>","protected":false},"featured_media":641,"template":"","adweb_product_categories":[70,19],"adweb_product_tags":[275,277,273,281,282,280,278,279,274,276],"class_list":["post-671","products","type-products","status-publish","has-post-thumbnail","hentry","adweb_product_cat-pvc-extrusion-grade-granules","adweb_product_cat-pvc-granules","adweb_product_tag-buy-dst-pvc-granules-for-electric-cables-coating","adweb_product_tag-cheap-dst-pvc-granules-for-electric-cables-coating","adweb_product_tag-china-dst-pvc-granules-for-electric-cables-coating","adweb_product_tag-dst-pvc-granules-for-electric-cables-coating-factory","adweb_product_tag-dst-pvc-granules-for-electric-cables-coating-for-sale","adweb_product_tag-dst-pvc-granules-for-electric-cables-coating-manufacturer","adweb_product_tag-dst-pvc-granules-for-electric-cables-coating-price","adweb_product_tag-dst-pvc-granules-for-electric-cables-coating-wholesale","adweb_product_tag-high-quality-dst-pvc-granules-for-electric-cables-coating","adweb_product_tag-hot-sale-dst-pvc-granules-for-electric-cables-coating"],"gallery":[650,640,619],"order":"0","acf":[],"_links":{"self":[{"href":"https:\/\/www.dstpvc.com\/es\/wp-json\/wp\/v2\/adweb_products\/671","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.dstpvc.com\/es\/wp-json\/wp\/v2\/adweb_products"}],"about":[{"href":"https:\/\/www.dstpvc.com\/es\/wp-json\/wp\/v2\/types\/products"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.dstpvc.com\/es\/wp-json\/wp\/v2\/media\/641"}],"wp:attachment":[{"href":"https:\/\/www.dstpvc.com\/es\/wp-json\/wp\/v2\/media?parent=671"}],"wp:term":[{"taxonomy":"adweb_product_cat","embeddable":true,"href":"https:\/\/www.dstpvc.com\/es\/wp-json\/wp\/v2\/adweb_product_categories?post=671"},{"taxonomy":"adweb_product_tag","embeddable":true,"href":"https:\/\/www.dstpvc.com\/es\/wp-json\/wp\/v2\/adweb_product_tags?post=671"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}