{"id":379,"date":"2026-04-15T05:38:16","date_gmt":"2026-04-15T05:38:16","guid":{"rendered":"https:\/\/raylimachinery.com\/?post_type=solotion&p=379"},"modified":"2026-04-15T05:40:04","modified_gmt":"2026-04-15T05:40:04","slug":"case-study-high-capacity-3000kg-h-hdpe-rigid-plastic-washing-line-for-grade-a-recycled-flakes","status":"publish","type":"solotion","link":"https:\/\/raylimachinery.com\/fr\/solotion\/case-study-high-capacity-3000kg-h-hdpe-rigid-plastic-washing-line-for-grade-a-recycled-flakes\/","title":{"rendered":"Case Study: High-Capacity 3000kg\/h HDPE Rigid Plastic Washing Line for Grade-A Recycled Flakes"},"content":{"rendered":"
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1. Project Overview\u00a0<\/b><\/h3>\n
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    Location:<\/b> Central China<\/p>\n<\/li>\n

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    Date:<\/b> December 12, 2024<\/p>\n<\/li>\n

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    Equipment:<\/b> 3000kg\/h High-Efficiency HDPE Rigid Plastic Washing Line<\/p>\n<\/li>\n

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    Input Material:<\/b> Mixed HDPE waste from township collection centers<\/p>\n<\/li>\n

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    Final Application:<\/b> High-Purity Sheets for Melt Granulation<\/p>\n<\/li>\n<\/ul>\n

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    2. The Challenge\u00a0<\/b><\/h3>\n

    A regional recycling center was struggling with outdated equipment that could only achieve 85% purity<\/b>. This led to:<\/p>\n

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    • \n

      Low Market Value:<\/b> The contaminated flakes sold for much lower prices.<\/p>\n<\/li>\n

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      Narrow Profit Margins:<\/b> High processing costs combined with low-quality output made the business unsustainable.<\/p>\n<\/li>\n

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      Scaling Bottleneck:<\/b> They needed a much higher throughput (3 tons per hour) to handle the growing volume of local HDPE waste.<\/p>\n<\/li>\n<\/ul>\n

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      3. Ruili Machinery\u2019s Solution<\/b><\/h3>\n

      We implemented a state-of-the-art washing technology tailored for mixed rigid plastics, utilizing a 5-step optimized process:<\/p>\n

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      1. \n

        Pre-treatment:<\/b> Automatic sorting and size reduction to prepare the material.<\/p>\n<\/li>\n

      2. \n

        Hot Alkaline Washing:<\/b> Specialized high-temperature alkaline solution to dissolve stubborn organic fats and oils.<\/p>\n<\/li>\n

      3. \n

        High-Speed Friction Cleaning:<\/b> Mechanically removing labels, glue, and surface contaminants.<\/p>\n<\/li>\n

      4. \n

        Flotation & Sedimentation:<\/b> Advanced density separation to ensure 100% removal of non-HDPE sinkable impurities.<\/p>\n<\/li>\n

      5. \n

        Centrifugal Dehydration & Drying:<\/b> Ensuring the final product is dry and ready for immediate extrusion.<\/p>\n<\/li>\n<\/ol>\n

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        4. Results & Performance\u00a0<\/b><\/h3>\n

        After the implementation of the Ruili 3000kg\/h line, the results were transformative:<\/p>\n

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          Exceptional Purity:<\/b> Cleanliness increased from 85% to 99.2%<\/b>, free from oil, glue, and impurities.<\/p>\n<\/li>\n

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          High Recovery Rate:<\/b> Successfully recovered 2.73 tons of clean flakes<\/b> from every 3 tons of raw waste (91% recovery rate<\/b>).<\/p>\n<\/li>\n

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          Optimal Moisture Control:<\/b> Final moisture content was reduced to 4.8%<\/b>, ideal for direct feeding into granulators.<\/p>\n<\/li>\n

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          Profitability Boost:<\/b> The high-quality flakes now meet “Grade-A” standards, significantly increasing the client\u2019s selling price and market competitiveness.<\/p>\n<\/li>\n<\/ul>\n

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          5. Customer Feedback\u00a0<\/b><\/h3>\n
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          “Ruili Machinery’s 3-ton washing line completely changed our business model. We went from struggling with low-grade flakes to producing premium material that granulators compete to buy. The stability of the 3000kg\/h output is impressive, and the purity levels exceeded our highest expectations.”<\/i><\/p>\n

          \u2014 General Manager, Regional Recycling Center<\/b><\/p>\n<\/blockquote>\n

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