{"id":16964,"date":"2026-06-23T15:11:50","date_gmt":"2026-06-23T07:11:50","guid":{"rendered":"https:\/\/www.fhopepack.com\/zh\/?p=16964"},"modified":"2026-06-23T15:11:50","modified_gmt":"2026-06-23T07:11:50","slug":"automatic-ppr-pipe-bundling-strapping-and-bagging-with-raffia-sack-packing-machine","status":"publish","type":"post","link":"https:\/\/www.fhopepack.com\/zh\/automatic-ppr-pipe-bundling-strapping-and-bagging-with-raffia-sack-packing-machine\/","title":{"rendered":"Automatic PPR pipe bundling strapping and bagging with Raffia sack packing machine"},"content":{"rendered":"<p>Manual bundling and bagging of PPR pipes consumes up to 50% of packing labor cost. This case study examines a fully\u2011automatic line that simultaneously bundles, straps, and packs pipes into raffia woven sacks, cutting manual handling by 80% and achieving a typical 14\u2011month ROI for mid\u2011volume extruders. Performance data cited is from the client\u2019s internal report and may not be independently verified; investment figures are client\u2011specific and may vary by region.<\/p>\n<p><a href=\"https:\/\/youtu.be\/V4ThVmfd8ZU\">Watch the machine in action \u2192<\/a><\/p>\n<h2>\ud83d\udee0\ufe0f Client Background<\/h2>\n<iframe width=\"100%\" height=\"420\" src=\"https:\/\/www.youtube.com\/embed\/V4ThVmfd8ZU?rel=0\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>\n<p><strong>A mid\u2011sized Asian pipe manufacturer producing PE, PPR\u2011C (a random copolymer polypropylene used for hot\/cold water piping), and PVC pipes from 16\u202fmm to 630\u202fmm diameter faced growing labor shortages and rising packaging waste.<\/strong> With three extrusion lines running 20\u202fhours\/day, the company manually bundled straight pipes, applied polypropylene strapping, and slid each bundle into raffia woven sacks (heavy\u2011duty woven polypropylene bags). Output averaged only 25 bundles per operator per hour. The client sought a unified system that could handle PPR straight pipes (20\u2013110\u202fmm diameter, 4\u202fm length) and integrate inline with the extrusion line.<\/p>\n<h2>\ud83c\udfd7\ufe0f Challenge<\/h2>\n<iframe width=\"100%\" height=\"420\" src=\"https:\/\/www.youtube.com\/embed\/z1KLxLk_AOs?rel=0\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture\" allowfullscreen><\/iframe>\n<p><strong>The main challenge was to replace a three\u2011step manual process (bundling \u2192 strapping \u2192 bagging) with a single automated line that could match extrusion speed, accommodate frequent diameter changes, and close both ends of raffia sacks without tearing.<\/strong> The manual method required three workers per shift: one for stacking, one for strapping (PP belt), and one for bagging and sewing. Bundle size inconsistency caused frequent strap breakage, and bag closure failures (unsewn ends) led to product damage during storage and truck loading. Downtime for rework averaged 45\u202fminutes per shift. The client needed a solution that could reduce labor, improve bag seal quality, and maintain a line speed of at least 8\u202fm\/min for 4\u2011m pipes.<\/p>\n<h2>\ud83d\udcc8 Solution Design<\/h2>\n<p><strong>The recommended solution was an on\u2011line full\u2011automatic pipe bundling, strapping, and raffia bag packing machine (Machine\u202f4 in the original proposal), integrated directly after the extrusion cooling and cutting section.<\/strong> Key design choices:<\/p>\n<ul>\n<li>\n<p><strong>Bundling module<\/strong> \u2013 Servo\u2011controlled stacking unit forms square or rectangular bundles (adjustable: 4\u201312 pipes per bundle, depending on diameter).  <\/p>\n<\/li>\n<li>\n<p><strong>Strapping unit<\/strong> \u2013 Uses polypropylene strap (0.8\u202f\u00b10.5\u202fmm thick, 12\u202f\u00b10.5\u202fmm wide, roll ID\u202f200\u202fmm \/ OD\u202f400\u202fmm). <strong>Key Point:<\/strong> Strap tension is programmable per pipe type; typical force is 50\u2013120\u202fN for PPR to avoid surface indentation.  <\/p>\n<\/li>\n<li>\n<p><strong>Bagging station<\/strong> \u2013 Pre\u2011made raffia woven sacks (open\u2011mouth) are picked from a magazine, opened by vacuum cups, and the bundle is pushed inside via a pneumatically driven pusher. <strong>Key Point:<\/strong> Both bag ends are sewn using a <strong>dual\u2011needle sewing head<\/strong> (two needles simultaneously stitch the bag mouth for a secure, dust\u2011tight closure), as shown in the demonstration video. This eliminates manual sewing and guarantees a dust\u2011tight seal.  <\/p>\n<\/li>\n<\/ul>\n<p>The machine is PLC\u2011controlled with a touchscreen HMI. Changeover between pipe diameters (20\u2013110\u202fmm) takes \u226410\u202fminutes via recipe recall. The system footprint is approximately 12\u202fm\u202f\u00d7\u202f2.5\u202fm (L\u202f\u00d7\u202fW).<\/p>\n<h2>\ud83d\udee1\ufe0f Implementation<\/h2>\n<p><strong>The machine was installed over a 10\u2011day window during a scheduled production shutdown, with the vendor Fhopepack providing on\u2011site commissioning and operator training.<\/strong> Key implementation steps:<\/p>\n<ol>\n<li>\n<p><strong>Conveyor tie\u2011in<\/strong> \u2013 The extrusion line\u2019s cooling tank discharge conveyor was extended 3\u202fm and aligned with the bundling infeed.  <\/p>\n<\/li>\n<li>\n<p><strong>Synchronization<\/strong> \u2013 A line\u2011speed encoder (pulse per meter) was fitted to the extruder puller to match the bundling cycle. <strong>Key Point:<\/strong> The bundler\u2019s cycle time (3.2\u202fs per bundle at 8\u202fm\/min extrusion speed) was set as the master speed reference.  <\/p>\n<\/li>\n<li>\n<p><strong>Bag magazine loading<\/strong> \u2013 A single operator loads 200 ruffia sacks every 30\u202fminutes; the magazine holds up to 500 sacks.  <\/p>\n<\/li>\n<li>\n<p><strong>Testing<\/strong> \u2013 200 bundles of 25\u2011mm PPR pipe (4 pipes per bundle) were run at full speed. Strap breakage rate: 0.5% (vs. manual 3%). Bag seal pass rate: <strong>100% elimination<\/strong> (no unsewn ends) <strong>during the three\u2011month trial<\/strong>.  <\/p>\n<\/li>\n<\/ol>\n<p>First\u2011pass yield reached 98.5% after one week of tuning. <em>Note: The machine does not carry CE or ISO certification as of this writing; buyers should request vendor documentation for their specific safety and quality requirements.<\/em><\/p>\n<h2>\u2699\ufe0f Results Data<\/h2>\n<p><strong>After three months of operation, the line delivered the following measurable outcomes compared to the previous manual process (data from client internal report, not independently verified):<\/strong><\/p>\n<table>\n<thead>\n<tr>\n<th>Metric<\/th>\n<th>Manual (baseline)<\/th>\n<th>Automated line<\/th>\n<th>Improvement<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Bundles per hour (4\u2011m PPR, 25\u202fmm)<\/td>\n<td>25 per worker (75 total with 3 workers)<\/td>\n<td>72 per hour (1 operator)<\/td>\n<td><strong>\u201167% labor<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Strap breakage rate<\/td>\n<td>3%<\/td>\n<td>0.5%<\/td>\n<td><strong>\u201183%<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Bag seal failure rate<\/td>\n<td>8% (unsewn ends)<\/td>\n<td>0%<\/td>\n<td><strong>100% elimination during trial<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Rework downtime per shift<\/td>\n<td>45\u202fmin<\/td>\n<td>5\u202fmin<\/td>\n<td><strong>\u201189%<\/strong><\/td>\n<\/tr>\n<tr>\n<td>Bundle weight consistency<\/td>\n<td>\u00b11.2\u202fkg (variation)<\/td>\n<td>\u00b10.3\u202fkg<\/td>\n<td><strong>\u201175%<\/strong><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><strong>Key Point:<\/strong> Operator count dropped from three to one per shift. The machine runs at 8\u202fm\/min extrusion speed, matching the previous line speed without bottleneck. Bundle length is precisely 4\u202fm\u202f\u00b1\u202f10\u202fmm.<\/p>\n<h2>\ud83d\udee0\ufe0f ROI Analysis<\/h2>\n<p><strong>Based on the client\u2019s data, the total investment of $85,000 (machine + installation + training, client\u2011specific and may vary by region) was recovered in 14 months.<\/strong> Here is the calculation:<\/p>\n<ul>\n<li>\n<p><strong>Labor savings<\/strong>: 2 operators\u202f\u00d7\u202f$4.50\/hour\u202f\u00d7\u202f20\u202fhours\/day\u202f\u00d7\u202f300\u202fdays\/year\u202f=\u202f$54,000\/year  <\/p>\n<\/li>\n<li>\n<p><strong>Strap cost reduction<\/strong>: Strap breakage decreased from 3% to 0.5%, saving 620\u202fkg of PP strap per year \u2248 $1,860  <\/p>\n<\/li>\n<li>\n<p><strong>Reduced rework time<\/strong>: 40\u202fmin saved per shift\u202f\u00d7\u202f1.5 shifts\u202f\u00d7\u202f300\u202fdays\u202f=\u202f300\u202fhours regained \u2192 equivalent to $1,350 in effective labor  <\/p>\n<\/li>\n<li>\n<p><strong>Bag waste reduction<\/strong>: 8% seal failures eliminated \u2192 1,500 bags saved\/year \u2248 $450  <\/p>\n<\/li>\n<li>\n<p><strong>Total annual benefit<\/strong>: $57,660  <\/p>\n<\/li>\n<\/ul>\n<p><strong>Payback period<\/strong>: $85,000\u202f\/\u202f$57,660\u202f\u2248\u202f1.47\u202fyears (rounded to <strong>14 months<\/strong>). The client also reported reduced worker fatigue and fewer back injuries, which are not quantified but add indirect savings. Note: These figures are based on the client\u2019s local labor rates and material costs; actual results may vary depending on factory conditions and utility rates.<\/p>\n<h3>Total Cost of Ownership Context<\/h3>\n<p><strong>Typical maintenance costs for this machine are approximately $2,500\u2013$3,000 per year (including replacement sewing needles, strap grippers, and lubrication), with an uptime of 97% under normal operation.<\/strong> Utility consumption: 6\u202fkW electrical power (three\u2011phase, 380\u202fV, 50\u202fHz) and 12\u202fm\u00b3\/h compressed air at 6\u202fbar. Buyers should factor these into their payback calculations.<\/p>\n<h2>\ud83c\udfd7\ufe0f Purchase\u2011Decision Checklist<\/h2>\n<table>\n<thead>\n<tr>\n<th>Check<\/th>\n<th>Item<\/th>\n<th>Why It Matters<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>\u2610<\/td>\n<td><strong>Pipe diameter range<\/strong> (20\u2013110\u202fmm?)<\/td>\n<td>Machine must cover your largest and smallest PPR sizes.<\/td>\n<\/tr>\n<tr>\n<td>\u2610<\/td>\n<td><strong>Line speed compatibility<\/strong> (\u22658\u202fm\/min?)<\/td>\n<td>Verify that bundling cycle can match your extruder puller speed.<\/td>\n<\/tr>\n<tr>\n<td>\u2610<\/td>\n<td><strong>Bag type<\/strong> (woven raffia, open\u2011mouth?)<\/td>\n<td>Ensure magazine and sewing head are configured for your sack dimensions.<\/td>\n<\/tr>\n<tr>\n<td>\u2610<\/td>\n<td><strong>Strap material<\/strong> (PP only, or PET?)<\/td>\n<td>PP is standard; for heavy bundles (\u226550\u202fkg), consider PET strap.<\/td>\n<\/tr>\n<tr>\n<td>\u2610<\/td>\n<td><strong>Changeover time<\/strong> (\u226410\u202fmin?)<\/td>\n<td>Critical if you run multiple diameters daily.<\/td>\n<\/tr>\n<tr>\n<td>\u2610<\/td>\n<td><strong>CE\/ISO certification<\/strong><\/td>\n<td>Request vendor documentation; not verified in this case. Buyers should request certification documentation as part of vendor qualification.<\/td>\n<\/tr>\n<tr>\n<td>\u2610<\/td>\n<td><strong>Spare parts availability<\/strong><\/td>\n<td>Ask for a recommended spares list (sewing needles, strap grippers).<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<h2>\ud83d\udcc8 FAQ<\/h2>\n<p><strong>Q: Can this machine handle PE or PVC pipes as well?<\/strong><br \/>\nA: Yes. The same design accommodates PE, PPR\u2011C, and PVC straight pipes within the diameter range. Only the strap tension and bundling quantity need recipe adjustment.<\/p>\n<p><strong>Q: What is the typical installation footprint?<\/strong><br \/>\nA: Approximately 12\u202fm\u202f\u00d7\u202f2.5\u202fm (excluding extrusion conveyor extension). Allow additional 2\u202fm for operator access and maintenance.<\/p>\n<p><strong>Q: How long does a bag roll last?<\/strong><br \/>\nA: Magazines typically hold 500 sacks. For a line running 72 bundles\/hour, reloading is needed every ~7 hours.<\/p>\n<p><strong>Q: Is the sewing head reliable for long shifts?<\/strong><br \/>\nA: The dual\u2011needle sewing head is rated for 1,000 cycles\/hour. In this case, it operated 20\u202fhours\/day with weekly lubrication; no unscheduled downtime in the first three months.<\/p>\n<p><strong>Q: Can I retrofit this to an existing line?<\/strong><br \/>\nA: Yes, provided there is at least 3\u202fm of straight conveyor after the cutter. The vendor provides a synchronization kit; typical installation takes 10\u201314\u202fdays.<\/p>\n<p>For more configuration details, refer to the <a href=\"https:\/\/www.fhopepack.com\/Pipe-packing-machine\/\">pipe packing machine product page<\/a>.<\/p>","protected":false},"excerpt":{"rendered":"<p>Manual bundling and bagging of PPR pipes consumes up to 50% of packing labor cost. This case study examines a fully\u2011automatic line that simultaneously bundles, straps, and packs pipes into raffia woven sacks, cutting manual handling by 80% and achieving a typical 14\u2011month ROI for mid\u2011volume extruders. Performance data cited is from the client\u2019s internal [&hellip;]<\/p>","protected":false},"author":1,"featured_media":16965,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_seopress_robots_primary_cat":"none","_seopress_titles_title":"","_seopress_titles_desc":"","_seopress_robots_index":"","fifu_image_url":"https:\/\/www.fhopepack.com\/blog\/wp-content\/uploads\/2024\/07\/automatic-pipe-bundle-strapping-machine5.webp","fifu_image_alt":"","footnotes":""},"categories":[365],"tags":[],"class_list":["post-16964","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-plastic-pipe-packing"],"amp_enabled":true,"_links":{"self":[{"href":"https:\/\/www.fhopepack.com\/zh\/wp-json\/wp\/v2\/posts\/16964","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fhopepack.com\/zh\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fhopepack.com\/zh\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fhopepack.com\/zh\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fhopepack.com\/zh\/wp-json\/wp\/v2\/comments?post=16964"}],"version-history":[{"count":1,"href":"https:\/\/www.fhopepack.com\/zh\/wp-json\/wp\/v2\/posts\/16964\/revisions"}],"predecessor-version":[{"id":16966,"href":"https:\/\/www.fhopepack.com\/zh\/wp-json\/wp\/v2\/posts\/16964\/revisions\/16966"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fhopepack.com\/zh\/wp-json\/wp\/v2\/media\/16965"}],"wp:attachment":[{"href":"https:\/\/www.fhopepack.com\/zh\/wp-json\/wp\/v2\/media?parent=16964"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fhopepack.com\/zh\/wp-json\/wp\/v2\/categories?post=16964"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fhopepack.com\/zh\/wp-json\/wp\/v2\/tags?post=16964"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}