{"id":2547,"date":"2025-07-28T09:37:27","date_gmt":"2025-07-28T01:37:27","guid":{"rendered":"https:\/\/www.qxymachinery.com\/electroplating-parts\/v-shaped-seat-4\/"},"modified":"2026-04-13T15:37:17","modified_gmt":"2026-04-13T07:37:17","slug":"pvc-epdm-rubber-roller-for-water-retaining","status":"publish","type":"product","link":"https:\/\/www.qxymachinery.com\/pt\/water-retaining-rollers\/pvc-epdm-rubber-roller-for-water-retaining\/","title":{"rendered":"Rolo de borracha PVC\/EPDM para reten\u00e7\u00e3o de \u00e1gua"},"content":{"rendered":"

Problem-Solution Intro<\/b><\/strong><\/h3>\n

Eliminate Cross-Contamination in Rinsing Modules.<\/b><\/strong>\u00a0In the rinsing and washing sections of a PCB horizontal line, the goal is simple but critical: keep the water in the tank and off the tracks. Standard low-quality rollers often warp at 50\u00b0C+, leading to “leaky” seals and chemical carry-over that kills your bath life<\/b><\/strong>. The SN:6-4 PVC\/EPDM Hybrid Roller<\/b><\/strong>\u00a0is the engineering answer for high-volume, reliable water retention without the premium cost of exotic polymers.<\/p>\n

The “Why This Material” Section<\/b><\/strong><\/h3>\n

The Synergy of PVC and EPDM<\/b><\/strong>\u00a0We\u2019ve blended the structural rigidity of PVC with the elastic sealing properties of EPDM. This combination allows the SN:6-4 to handle a constant 55\u00b0C thermal load<\/b><\/strong>\u00a0while maintaining a tight seal against the PCB board edge.<\/p>\n

    \n
  • <\/b>Optimized Grip:<\/b><\/strong>The EPDM component provides just enough “tack” to ensure the board doesn’t slip, even in high-pressure spray modules.<\/li>\n
  • <\/b>Resistant to Weak Chemicals:<\/b><\/strong>Specifically formulated for developers and rinsing agents, resisting the typical hardening and cracking seen in generic rubber rollers.<\/li>\n<\/ul>\n

    Customization Capability<\/b><\/strong><\/h3>\n

    Built for the “Horizontal Line Footprint”<\/b><\/strong>\u00a0We understand that every equipment manufacturer has unique tolerances. Our SN:6-4 series is fully customizable to fit your machine’s specific footprint<\/b><\/strong>:<\/p>\n

      \n
    • <\/b>Hardness Tuning:<\/b><\/strong>We can adjust the Shore A hardness between 60-70 to match your board thickness and pressure requirements.<\/li>\n
    • <\/b>Axis Integration:<\/b><\/strong>While SS304 is standard, we offer Fiberglass<\/b><\/strong>\u00a0ou Carbon Fiber axes<\/b><\/strong>\u00a0to reduce the motor load on long conveyor sections.<\/li>\n
    • <\/b>Surface Texture:<\/b><\/strong>Available in matte or polished finish to control water-film tension during the water-blocking process.<\/li>\n<\/ul>\n

      Main Application Scenarios<\/b><\/strong><\/h3>\n

      The SN:6-4 is the “seal” of the Rinsing and Cleaning sections<\/b><\/strong>. While PP handles the heavy acids, this PVC\/EPDM hybrid is the cost-effective workhorse for Developing and Final Wash modules<\/b><\/strong>. It\u2019s designed to provide a soft, compliant seal that won’t bruise the board but stays tight enough to stop water carry-over.<\/p>\n

      Em PCB Developing lines<\/b><\/strong>, these rollers thrive in the 45\u00b0C-55\u00b0C range where generic rubbers usually harden and crack. They keep the developer chemistry in its tank and the rinse water in the next, preserving bath life. We also deploy these heavily in Industrial Glass Rinsing<\/b><\/strong>; the EPDM component provides just enough “tack” to grip the glass without leaving marks or “ghosting.” If you’re building a standard horizontal line and need a reliable water-block that doesn’t blow the budget on Teflon, this is the industry standard.<\/p>\n

      Technical Specification Table<\/b><\/strong><\/h3>\n\n\n\n\n\n\n\n\n\n\n
      Parameter<\/b><\/strong><\/td>\nIndustrial Specification<\/b><\/strong><\/td>\n<\/tr>\n
      Model Number<\/b><\/strong><\/td>\nSN: 6-4<\/td>\n<\/tr>\n
      Material Base<\/b><\/strong><\/td>\nPVC \/ EPDM Compound<\/td>\n<\/tr>\n
      Temp Tolerance<\/b><\/strong><\/td>\n55\u00b0C (Ideal for Rinsing\/Developing)<\/td>\n<\/tr>\n
      Radial Runout<\/b><\/strong><\/td>\n\u2264 0.15 mm<\/td>\n<\/tr>\n
      Dureza<\/b><\/strong><\/td>\nShore A 60-70<\/td>\n<\/tr>\n
      Shaft Material<\/b><\/strong><\/td>\nSUS304 \/ SUS316 \/ Fiberglass<\/td>\n<\/tr>\n
      Point of Use<\/b><\/strong><\/td>\nDeveloping Line, Cleaning Section, Water Rinsing<\/td>\n<\/tr>\n<\/tbody>\n<\/table>","protected":false},"excerpt":{"rendered":"

      SN:\u00a06-4<\/p>\n

      Name:\u00a0PVC\/EPDM Rubber roller (for water retaining)<\/p>\n

      Features:\u00a0Resistant to weak acid and alkali, excellent water runoff performance<\/p>\n

      Hardness:\u00a060-70<\/p>\n

      Color:\u00a0Black<\/p>\n

      Heat resistances: 55\u2103<\/p>\n

      Radial runout:\u00a00.15 mm<\/p>\n

      Size:\u00a0Can be customized<\/p>","protected":false},"featured_media":2554,"comment_status":"closed","ping_status":"closed","template":"","meta":[],"product_brand":[],"product_cat":[44],"product_tag":[88,87],"class_list":["post-2547","product","type-product","status-publish","has-post-thumbnail","product_cat-water-retaining-rollers","product_tag-transmission-roller","product_tag-water-retaining-roller","first","instock","shipping-taxable","product-type-simple"],"_links":{"self":[{"href":"https:\/\/www.qxymachinery.com\/pt\/wp-json\/wp\/v2\/product\/2547","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.qxymachinery.com\/pt\/wp-json\/wp\/v2\/product"}],"about":[{"href":"https:\/\/www.qxymachinery.com\/pt\/wp-json\/wp\/v2\/types\/product"}],"replies":[{"embeddable":true,"href":"https:\/\/www.qxymachinery.com\/pt\/wp-json\/wp\/v2\/comments?post=2547"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.qxymachinery.com\/pt\/wp-json\/wp\/v2\/media\/2554"}],"wp:attachment":[{"href":"https:\/\/www.qxymachinery.com\/pt\/wp-json\/wp\/v2\/media?parent=2547"}],"wp:term":[{"taxonomy":"product_brand","embeddable":true,"href":"https:\/\/www.qxymachinery.com\/pt\/wp-json\/wp\/v2\/product_brand?post=2547"},{"taxonomy":"product_cat","embeddable":true,"href":"https:\/\/www.qxymachinery.com\/pt\/wp-json\/wp\/v2\/product_cat?post=2547"},{"taxonomy":"product_tag","embeddable":true,"href":"https:\/\/www.qxymachinery.com\/pt\/wp-json\/wp\/v2\/product_tag?post=2547"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}