{"id":17276,"date":"2026-10-20T02:10:53","date_gmt":"2026-10-20T02:10:53","guid":{"rendered":"https:\/\/www.fhopepack.com\/videos\/how-to-pack-light-cardboard-by-horizontal-orbital-wrapper\/"},"modified":"2026-10-21T03:00:54","modified_gmt":"2026-10-21T03:00:54","slug":"how-to-pack-light-cardboard-by-horizontal-orbital-wrapper","status":"publish","type":"post","link":"https:\/\/www.fhopepack.com\/videos\/how-to-pack-light-cardboard-by-horizontal-orbital-wrapper\/","title":{"rendered":"How to Pack Light Cardboard by Horizontal Orbital Wrapper"},"content":{"rendered":"<h1>How to Bundle Lightweight Corrugated Boxes with a Horizontal Orbital Wrapper<\/h1>\n<h3>Executive Summary<\/h3>\n<p>Bundling lightweight or small-format corrugated cartons (e.g., e-commerce parcels, pharmaceutical kits, knocked-down boxes) presents a common packaging dilemma: traditional polypropylene (PP) strapping applies high-tension point loads that notch carton edges and degrade container compression strength (BCT). A horizontal orbital wrapper solves this by conveying products through a stationary rotating ring, applying uniform, multi-axis stretch film containment without crushing corrugated flutes. This engineering guide details the ring-sizing geometry formulas, power pre-stretch tension controls, pneumatic hold-down mechanics, and baseline integration parameters for light-carton lines.<\/p>\n<hr \/>\n<h3>Why Orbital Wrapping Beats Strapping and Turntables for Light Cartons<\/h3>\n<ol>\n<li><strong>Elimination of Edge-Notch Defect<\/strong>: Plastic strapping concentrates tension over a narrow 9\u201312 mm contact band, creasing outer liners and reducing downstream pallet stackability. Orbital film distributes containment force over a 125\u2013250 mm film band, creating a unified sheath without corner deformation.<\/li>\n<li><strong>Zero Rotational Centrifugal Forces<\/strong>: Conventional turntable wrappers spin the load on a circular plate; lightweight, tall, or freshly-glued carton stacks can easily pitch or slide off-center under rotational acceleration. Orbital wrappers convey cartons along a linear path while the film carriage orbits around them, maintaining absolute stack stability.<\/li>\n<li><strong>Internal Handling Without Secondary Boxes<\/strong>: Lightweight multipacks can be unitized for direct logistics transfer without requiring secondary master cartons or non-recyclable heavy plastic bags.<\/li>\n<\/ol>\n<p><iframe loading=\"lazy\" width=\"853\" height=\"480\" src=\"https:\/\/www.youtube.com\/embed\/y1DLft2y3hA\" title=\"how automatic horizontal stretch wrapper for 300mm small box wrapping\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe><\/p>\n<hr \/>\n<h3>Engineering Sizing: The Ring Clearance Formula<\/h3>\n<p>A common design error is matching the ring diameter to the box width rather than its geometric diagonal. To ensure safe clearance for the orbiting film carriage and cutting mechanisms, apply the following geometric constraint:<\/p>\n<blockquote>\n<p><strong>Minimum Ring Internal Diameter (D_ring) \u2265 \u221a(W\u00b2 + H\u00b2) + 2 \u00d7 C<\/strong>  <\/p>\n<p><em>Where:<\/em>  <\/p>\n<ul>\n<li><strong>W<\/strong> = Maximum carton width  <\/li>\n<li><strong>H<\/strong> = Maximum carton height  <\/li>\n<li><strong>C<\/strong> = Operational clearance (minimum 75 mm recommended)  <\/li>\n<\/ul>\n<\/blockquote>\n<ul>\n<li><strong>Compact Box Example (400 mm W \u00d7 300 mm H)<\/strong>:<br>\nDiagonal equals \u221a(400\u00b2 + 300\u00b2) = 500 mm. Sizing with 2 \u00d7 75 mm clearance requires a ring ID of at least 650 mm (e.g., standard FHOPE \u00d8 600\u2013800 mm chassis).<\/li>\n<li><strong>Large Box Example (1000 mm W \u00d7 1000 mm H)<\/strong>:<br>\nDiagonal equals \u221a(1000\u00b2 + 1000\u00b2) \u2248 1414 mm. Sizing with 2 \u00d7 75 mm clearance requires a ring ID of at least 1600 mm (\u2248 63 inches).<\/li>\n<\/ul>\n<hr \/>\n<h3>Five-Step Setup for Damage-Free Carton Wrapping<\/h3>\n<h4>Step 1: Set Powered Pre-Stretch &amp; Containment Tension<\/h4>\n<p>Lightweight corrugated board (single-wall B-flute or micro-flute E\/F-flute) cannot resist heavy hoop tension.<\/p>\n<ul>\n<li><strong>Pre-Stretch Ratio<\/strong>: Utilize a motorized pre-stretch carriage calibrated between <strong>150% and 200%<\/strong>. This elongates the film before it leaves the carriage, locking in film memory without exerting high static pull on the box corners.<\/li>\n<li><strong>Secondary Containment Force<\/strong>: Adjust the dancer arm or dynamic brake tension between <strong>15 N and 35 N<\/strong>. Cast LLDPE film (15\u201323 \u00b5m) is recommended for high optical clarity, ensuring shipping labels and 2D barcodes remain readable through the wrap.<\/li>\n<\/ul>\n<h4>Step 2: Calibrate Pneumatic Top Hold-Down Rollers<\/h4>\n<p>Unbonded or loosely accumulated cartons trap air pockets that cause bundles to shift during travel:<\/p>\n<ul>\n<li>Set top-roller pneumatic regulator pressure between <strong>0.2 MPa and 0.4 MPa<\/strong> (effective vertical downward force \u2248 150\u2013300 N).<\/li>\n<li>Equip hold-down rollers with soft polyurethane (PU) sleeves or non-marking rubber to prevent creasing top box flaps.<\/li>\n<\/ul>\n<h4>Step 3: Align Conveyor Infeed &amp; Side Guides<\/h4>\n<p>Position low-friction UHMW-PE lateral guide rails to center the carton on the conveyor centerline. The clearance between the box sides and conveyor edge must ensure zero deflection when passing through the ring throat.<\/p>\n<h4>Step 4: Program PLC Wrap Recipes<\/h4>\n<p>Via the touchscreen HMI, configure wrap counts based on transit severity:<\/p>\n<ul>\n<li><strong>Reinforcement Wraps<\/strong>: 2\u20133 wraps at bundle leading and trailing edges.<\/li>\n<li><strong>Throughput Speed<\/strong>: Synchronize conveyor line speed (6\u201315 m\/min) with ring rotational velocity (40\u201380 RPM) to achieve a 30% to 50% spiral overlap ratio.<\/li>\n<\/ul>\n<h4>Step 5: Automatic Cut and Clamp Execution<\/h4>\n<p>At the completion of the cycle, an automatic pneumatic clamping arm catches the film web, while a mechanical or hot-wire cutter severs the tail. A soft secondary brush or wipe-down roller presses the trailing tail flat against the bundle, eliminating loose film tails without manual taping.<\/p>\n<hr \/>\n<h3>Baseline Technical Parameters<\/h3>\n<table>\n<thead>\n<tr>\n<th>Engineering Parameter<\/th>\n<th>Small-to-Medium Carton Line<\/th>\n<th>Large-Format Carton Line<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Ring Internal Diameter<\/strong><\/td>\n<td>\u00d8 600 mm &#8211; 800 mm<\/td>\n<td>\u00d8 1200 mm &#8211; 1800 mm<\/td>\n<\/tr>\n<tr>\n<td><strong>Max Product Cross-Section<\/strong><\/td>\n<td>450 \u00d7 450 mm<\/td>\n<td>1000 \u00d7 1000 mm<\/td>\n<\/tr>\n<tr>\n<td><strong>Ring Rotation Speed<\/strong><\/td>\n<td>40 \u2013 90 RPM (Inverter soft start\/stop)<\/td>\n<td>30 \u2013 60 RPM<\/td>\n<\/tr>\n<tr>\n<td><strong>Film Roll Specification<\/strong><\/td>\n<td>Width: 125 mm or 250 mm; Core: 76 mm<\/td>\n<td>Width: 250 mm or 500 mm; Core: 76 mm<\/td>\n<\/tr>\n<tr>\n<td><strong>Film Pre-Stretch Delivery<\/strong><\/td>\n<td>Powered pre-stretch (150% \u2013 250%)<\/td>\n<td>Powered pre-stretch (200% \u2013 300%)<\/td>\n<\/tr>\n<tr>\n<td><strong>Top Press-Down Unit<\/strong><\/td>\n<td>Dual-cylinder pneumatic roller (0.2\u20130.4 MPa)<\/td>\n<td>Heavy-duty top stabilizing belt<\/td>\n<\/tr>\n<tr>\n<td><strong>Linear Conveyor Speed<\/strong><\/td>\n<td>4 \u2013 15 m\/min (Variable frequency drive)<\/td>\n<td>3 \u2013 12 m\/min<\/td>\n<\/tr>\n<tr>\n<td><strong>Control Architecture<\/strong><\/td>\n<td>Siemens \/ Delta PLC with Touch HMI<\/td>\n<td>Profinet \/ Ethernet\/IP line integration<\/td>\n<\/tr>\n<tr>\n<td><strong>Safety Certification<\/strong><\/td>\n<td>CE compliant per EN ISO 12100 &amp; EN 415-6<\/td>\n<td>Category 3 \/ PL d interlocked light curtains<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h3>Troubleshooting Common Defects<\/h3>\n<table>\n<thead>\n<tr>\n<th>Packaging Defect<\/th>\n<th>Primary Mechanical Cause<\/th>\n<th>Corrective Engineering Action<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Box Corner Creasing \/ Crushing<\/strong><\/td>\n<td>Excessive dancer arm tension or low pre-stretch<\/td>\n<td>Increase pre-stretch ratio to 200%; reduce dynamic brake force below 25 N.<\/td>\n<\/tr>\n<tr>\n<td><strong>Bundle Shifting \/ Twisting<\/strong><\/td>\n<td>Infeed conveyor mismatch or low hold-down force<\/td>\n<td>Increase top cylinder pressure to 0.35 MPa; verify infeed belt tracking.<\/td>\n<\/tr>\n<tr>\n<td><strong>Barcode Scan Failure<\/strong><\/td>\n<td>Film wrinkling or high-haze blown film<\/td>\n<td>Switch to high-clarity cast LLDPE film; increase spiral overlap consistency.<\/td>\n<\/tr>\n<tr>\n<td><strong>Loose Film Tail Trailing<\/strong><\/td>\n<td>Worn pneumatic clamp gripper or blunt cut blade<\/td>\n<td>Clean adhesive buildup on clamp pads; inspect and sharpen mechanical shear blade.<\/td>\n<\/tr>\n<tr>\n<td><strong>Film Snapping at Corners<\/strong><\/td>\n<td>Rapid ring acceleration or sharp carton corners<\/td>\n<td>Smooth the VFD ramp-up curve (accel time \u2265 1.5 s); inspect for burrs on box edges.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h3>Engineering Selection FAQ<\/h3>\n<p><strong>Q: Can orbital wrappers bundle cartons without a pallet?<\/strong>\n<br>\nA: Yes. Orbital tunnel wrappers are primarily engineered for pallet-less unitization. Products are supported continuously on split powered roller or modular belt conveyors that span through the ring throat, discharging stable, fully bundled multipacks directly to dispatch.<\/p>\n<p><strong>Q: How do we prevent lightweight cartons from being lifted by the film tension?<\/strong>\n<br>\nA: Overhead pneumatic hold-down rollers remain engaged directly above the carton stack throughout the wrapping sequence, resisting the radial upward pull of the film until the final cut-and-wipe cycle completes.<\/p>\n<p><strong>Q: Can this system integrate into an existing automated case erector and sealer line?<\/strong>\n<br>\nA: Yes. Standard systems incorporate dry-contact or fieldbus (Profinet\/EtherNet-IP) handshakes: upstream case tapers issue a <em>Request to Send<\/em> signal, the wrapper confirms <em>Ready<\/em>, centers the box, executes the wrap cycle, and pulses a <em>Complete<\/em> signal to the downstream sortation conveyor.<\/p>\n<hr \/>\n<h3>Next Step &amp; Project Sizing<\/h3>\n<ol>\n<li><strong>Calculate Product Envelope<\/strong>: Compile your min\/max carton footprint (L \u00d7 W \u00d7 H), tare weight, and hourly bundle target.<\/li>\n<li><strong>Submit Parameters<\/strong>: Email your specifications to <strong>info@fhopepack.com<\/strong> to receive a 3D line layout drawing and film-savings ROI calculation within 48 hours.<\/li>\n<li><strong>Run a Material Test<\/strong>: Ship sample carton bundles to FHOPE&#8217;s testing facility to confirm containment force and zero edge-crush thresholds on your specific corrugated flutes.<\/li>\n<\/ol>","protected":false},"excerpt":{"rendered":"<p>How to Bundle Lightweight Corrugated Boxes with a Horizontal Orbital Wrapper Executive Summary Bundling lightweight or small-format corrugated cartons (e.g., e-commerce parcels, pharmaceutical kits, knocked-down boxes) presents a common packaging dilemma: traditional polypropylene (PP) strapping [&hellip;]<\/p>","protected":false},"author":1,"featured_media":17291,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"How to Pack Light Cardboard by Horizontal Orbital Wrapper","_seopress_titles_desc":"How to pack light cardboard by horizontal orbital wrapper. 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