{"id":15437,"date":"2026-09-20T08:49:48","date_gmt":"2026-09-20T08:49:48","guid":{"rendered":"https:\/\/www.fhopepack.com\/videos\/?p=15437"},"modified":"2026-10-26T13:11:25","modified_gmt":"2026-10-26T13:11:25","slug":"mechanical-load-and-tension-analysis-in-integrated-tilting-strapping-and-stretch-wrapping-systems-for-high-precision-slit-steel-coil","status":"publish","type":"post","link":"https:\/\/www.fhopepack.com\/videos\/mechanical-load-and-tension-analysis-in-integrated-tilting-strapping-and-stretch-wrapping-systems-for-high-precision-slit-steel-coil\/","title":{"rendered":"Slit Coil Tilting, Eye-Through Wrapping and Stacking Line: Setting Film Overlap and Wrap Count"},"content":{"rendered":"<blockquote>\n<p><strong>Executive Summary<\/strong>\nIn automated slit coil packaging, coordinating kinematics across the 90\u00b0 upender, orbital eye-through wrapper, and stacking gantry defines line throughput and surface protection. Setting the film overlap ratio establishes the required wrapping ring revolutions relative to coil outer diameter (OD) and core bore (ID). This technical engineering guide details the mathematical relationship between coil dimensions, film advance per ring cycle, mechanical line synchronization, and integration parameters governed by international safety standards.<\/p>\n<\/blockquote>\n<iframe loading=\"lazy\" width=\"1053\" height=\"592\" src=\"https:\/\/www.youtube.com\/embed\/b45MTJ78fiw\" title=\"Automatic Slit Steel Coil Handling and Wrapping Packaging Line\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe>\n<hr \/>\n<h2>Why Tilt, Wrap, Then Stack \u2014 The Logic of Sequence<\/h2>\n<p>A downstream slit coil packaging line processes narrow slit steel strips originating from a slitting master recoiler. Transporting and protecting slit coils requires strict mechanical sequencing governed by orbital kinematics and edge-load preservation.<\/p>\n<pre><code>+------------------+      +-------------------+      +------------------+      +------------------+\n| Slit Strip Exit  | ---&gt; | 90&deg; Upender Tilt  | ---&gt; | Orbital Eye-Thru | ---&gt; | Gantry Transfer  |\n| Eye-to-the-Sky   |      | Bore: Horiz (Wall)|      | Stretch Wrapping |      | Pallet Stacking  |\n+------------------+      +-------------------+      +------------------+      +------------------+<\/code><\/pre>\n<h3>1. Tilt First (90\u00b0 Axis Shift)<\/h3>\n<p>Slit coils frequently transfer from strapping or storage stations in an &#8220;eye-to-the-sky&#8221; orientation (bore vertical, resting on their slit-edge side face). An eye-through orbital wrapper requires the steel coil core bore to be horizontal (&#8220;eye-to-the-wall&#8221;). The hydraulic upender executes a rigid 90\u00b0 tilt onto driven polyurethane carrier rollers. This step creates the clearance needed for the rotating wrapping ring and film carriage to transit freely through the inner bore without mechanical interference.<\/p>\n<h3>2. Wrap Next (Toroidal Enclosure)<\/h3>\n<p>Once positioned with its bore horizontal, the coil rotates on twin support rollers while the orbital shuttle ring rotates continuously through the coil eye. The LLDPE stretch film or VCI composite wrap encapsulates both side faces, the outer diameter, and the inner bore simultaneously. Eye-through wrapping protects vulnerable slit shear edges from atmospheric moisture, condensation, and edge impact damage during transit.<\/p>\n<h3>3. Stack Last (Surface Protection)<\/h3>\n<p>The automatic overhead gantry pick-and-place system utilizes mechanical scissor grabs, electromagnetic heads, or vacuum cups to move finished coils onto pallets. By executing the stack sequence strictly <em>after<\/em> packaging, the film cocoon acts as a protective buffer between the mechanical gripper jaws and the strip surface, preventing scratch marks or secondary coil telescoping.<\/p>\n<h3>4. Continuous In-Line Flow<\/h3>\n<p>Integrating powered chain or roller conveyors eliminates overhead plant crane inter-bay transfers, removing bottleneck delays, chain-sling damage, and high-risk manual rigging.<\/p>\n<hr \/>\n<h2>Ring Turns \u2014 How Many Wraps Does a Coil Need?<\/h2>\n<p>The total number of ring revolutions required to achieve 100% surface encapsulation depends on coil outer diameter (OD), strip width, film web width, target overlap percentage, and system mechanical advance.<\/p>\n<pre><code>       Film Advance per Ring Turn (OD)\n  &lt;---------------------------------------&gt;\n  +------------------+--------------------+\n  |    Layer Pass 1  |    Layer Pass 2    |\n  +------------------+--------------------+\n  |&lt;- Overlap Width -&gt;|<\/code><\/pre>\n<h3>Kinematic Advance Model<\/h3>\n<p>When wrapping a toroidal geometry, the film overlap changes between the outer circumference and the inner bore. Because the inner diameter circumference is smaller than the outer circumference (<code>&pi; &times; ID &lt; &pi; &times; OD<\/code>), film density naturally clusters at the bore. Therefore, calculations for coverage must be anchored at the <strong>Outer Circumference<\/strong> to prevent gaps:<\/p>\n<p><code>Advance_OD = Film_Width &times; (1 - Overlap_Ratio)<\/code><\/p>\n<p><code>Ring_Turns = Coil_Outer_Circumference &divide; Advance_OD = (&pi; &times; Coil_OD) &divide; [Film_Width &times; (1 - Overlap_Ratio)]<\/code><\/p>\n<h3>Worked Example (Engineering Calibration)<\/h3>\n<table>\n<thead>\n<tr>\n<th>Technical Parameter<\/th>\n<th>Specification \/ Value<\/th>\n<th>Formula \/ Method<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Coil Outer Diameter (OD)<\/td>\n<td>1,200 mm<\/td>\n<td>Specified coil dimension<\/td>\n<\/tr>\n<tr>\n<td>Coil Bore Diameter (ID)<\/td>\n<td>508 mm<\/td>\n<td>Standard slitter mandrel size<\/td>\n<\/tr>\n<tr>\n<td>Coil Outer Circumference<\/td>\n<td>3,770 mm<\/td>\n<td><code>&pi; &times; OD = 3.1416 &times; 1,200 mm<\/code><\/td>\n<\/tr>\n<tr>\n<td>Film Width (Wf)<\/td>\n<td>150 mm<\/td>\n<td>LLDPE high-yield stretch film<\/td>\n<\/tr>\n<tr>\n<td>Target Overlap Ratio<\/td>\n<td>50% (0.50)<\/td>\n<td>Heavy export protection grade<\/td>\n<\/tr>\n<tr>\n<td>Linear Advance per Turn (At)<\/td>\n<td>75 mm<\/td>\n<td><code>150 mm &times; (1 - 0.50)<\/code><\/td>\n<\/tr>\n<tr>\n<td>Calculated Ring Revolutions<\/td>\n<td><strong>51 Turns<\/strong><\/td>\n<td><code>3,770 mm &divide; 75 mm = 50.27 (round up)<\/code><\/td>\n<\/tr>\n<tr>\n<td>Resulting Bore Overlap Ratio<\/td>\n<td><strong>~79%<\/strong><\/td>\n<td>Evaluated at 508 mm ID (<code>&pi; &times; ID = 1,596 mm<\/code>)<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>To complete two protective layers (200% cover), the drive controller doubles the cycle parameter to 102 ring turns while adjusting conveyor carrier roller feed velocity.<\/p>\n<pre><code>Calculated Coverage Ratio:\nOuter Diameter (OD): [==== Overlap 50% ====]\nInner Core (ID):     [======== Overlap 79% ========]<\/code><\/pre>\n<h3>Process Variables Influencing Cycle Count<\/h3>\n<table>\n<thead>\n<tr>\n<th>Variable Condition<\/th>\n<th>Shift in Ring Count<\/th>\n<th>Mechanical \/ Process Reason<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Increased Coil OD<\/strong><\/td>\n<td>Increases<\/td>\n<td>Larger circumference requires more advance steps to seal perimeter.<\/td>\n<\/tr>\n<tr>\n<td><strong>Increased Overlap (e.g., 30% -&gt; 60%)<\/strong><\/td>\n<td>Increases<\/td>\n<td>Reduced advance per turn (<code>A_t<\/code>) necessitates more ring turns per layer.<\/td>\n<\/tr>\n<tr>\n<td><strong>Reduced Overlap (e.g., 50% -&gt; 30%)<\/strong><\/td>\n<td>Decreases<\/td>\n<td>Greater advance per turn accelerates cycle at the expense of moisture barrier.<\/td>\n<\/tr>\n<tr>\n<td><strong>Wider Film Web (e.g., 100 -&gt; 250 mm)<\/strong><\/td>\n<td>Decreases<\/td>\n<td>Higher envelope coverage per revolution reduces total line index time.<\/td>\n<\/tr>\n<tr>\n<td><strong>Narrow Slit Width (&lt; 50 mm)<\/strong><\/td>\n<td>Constant (Controlled)<\/td>\n<td>Requires auxiliary side guide rollers to prevent coil toppling during cycle.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h2>Settings Per Line: Process Configuration Matrix<\/h2>\n<p>Every slit coil line is matched to strip alloy, gauge, surface sensitivity, and logistics profiles through PLC-driven parameter presets:<\/p>\n<table>\n<thead>\n<tr>\n<th>Control Parameter<\/th>\n<th>Governing Mechanical Factor<\/th>\n<th>Typical Engineering Range<\/th>\n<th>Process Objective<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Film Overlap<\/strong><\/td>\n<td>Environmental exposure &amp; logistics<\/td>\n<td>30% \u2013 60%<\/td>\n<td>30% for domestic inland; 50%\u201360% for intermodal maritime transit<\/td>\n<\/tr>\n<tr>\n<td><strong>Pre-Stretch Ratio<\/strong><\/td>\n<td>Powered dual-roller carriage gears<\/td>\n<td>150% \u2013 250%<\/td>\n<td>Minimizes film usage; hardens film to lock strip layers against edge shear<\/td>\n<\/tr>\n<tr>\n<td><strong>Film Tension<\/strong><\/td>\n<td>Variable frequency brake \/ load cell<\/td>\n<td>150 N \u2013 350 N<\/td>\n<td>Stabilizes strip bundles without compressing sensitive strip edges<\/td>\n<\/tr>\n<tr>\n<td><strong>Upender Cycle Time<\/strong><\/td>\n<td>Hydraulic proportional valve speed<\/td>\n<td>25 \u2013 45 seconds<\/td>\n<td>Smooth acceleration prevents shifting of loose outer laps<\/td>\n<\/tr>\n<tr>\n<td><strong>Carrier Roller Speed<\/strong><\/td>\n<td>Inverter-driven synchronized gearmotor<\/td>\n<td>1.5 \u2013 4.5 m\/min<\/td>\n<td>Synchronizes linear perimeter feed with wrapping ring RPM<\/td>\n<\/tr>\n<tr>\n<td><strong>Gantry Layering Mode<\/strong><\/td>\n<td>Pallet specification &amp; payload limit<\/td>\n<td>2 \u2013 8 coils\/stack<\/td>\n<td>Centered gravity stack patterns with intermediate wood or cardboard spacers<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h2>Technical Specifications<\/h2>\n<table>\n<thead>\n<tr>\n<th>Parameter Dimension<\/th>\n<th>Standard Heavy-Duty Line Envelope<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td><strong>Coil Payload Capacity<\/strong><\/td>\n<td>500 \u2013 5,000 kg per station<\/td>\n<\/tr>\n<tr>\n<td><strong>Coil Outer Diameter (OD)<\/strong><\/td>\n<td>600 \u2013 1,800 mm<\/td>\n<\/tr>\n<tr>\n<td><strong>Coil Inner Diameter (ID)<\/strong><\/td>\n<td>400 \u2013 610 mm (Mandrel compatible)<\/td>\n<\/tr>\n<tr>\n<td><strong>Slit Coil Width Range<\/strong><\/td>\n<td>20 \u2013 500 mm<\/td>\n<\/tr>\n<tr>\n<td><strong>Ring Orbital Speed<\/strong><\/td>\n<td>40 \u2013 100 RPM (Inverter controlled)<\/td>\n<\/tr>\n<tr>\n<td><strong>Packaging Film Media<\/strong><\/td>\n<td>LLDPE Stretch Film \/ VCI Crepe Paper \/ PP Woven Film<\/td>\n<\/tr>\n<tr>\n<td><strong>Film Web Width<\/strong><\/td>\n<td>100 \u2013 250 mm (Roll OD: \u2264 200 mm; Core: 50\/76 mm)<\/td>\n<\/tr>\n<tr>\n<td><strong>Hydraulic Unit Working Pressure<\/strong><\/td>\n<td>12 \u2013 16 MPa<\/td>\n<\/tr>\n<tr>\n<td><strong>Main System Power<\/strong><\/td>\n<td>3-Phase, 380V\/480V, 50\/60 Hz (Total connected load: 15\u201328 kW)<\/td>\n<\/tr>\n<tr>\n<td><strong>Pneumatic Supply Requirement<\/strong><\/td>\n<td>0.6 \u2013 0.8 MPa (Clean, dry compressed air)<\/td>\n<\/tr>\n<tr>\n<td><strong>PLC &amp; HMI Platform<\/strong><\/td>\n<td>Siemens S7-1500 \/ Allen-Bradley CompactLogix<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<hr \/>\n<h2>Technical Selection Checklist<\/h2>\n<p>Verify the following engineering parameters prior to issuing a Request for Quotation (RFQ):<\/p>\n<ul>\n<li style=\"margin-left:-1.25em;list-style-type:none\"><input type=\"checkbox\" disabled=\"disabled\" \/> <strong>Coil Dimensional Extremes<\/strong>: Maximum and minimum OD, bore ID, minimum and maximum individual slit width, and maximum unit coil mass.<\/li>\n<li style=\"margin-left:-1.25em;list-style-type:none\"><input type=\"checkbox\" disabled=\"disabled\" \/> <strong>Upstream Handshake<\/strong>: Direct exit from turnstile arm, downender loading car, or automated overhead turn-over clamp.<\/li>\n<li style=\"margin-left:-1.25em;list-style-type:none\"><input type=\"checkbox\" disabled=\"disabled\" \/> <strong>Material Metallurgy &amp; Surface<\/strong>: High-tensile carbon steel, mirror-finish stainless, electrical silicon steel, copper, or pre-painted coil (requires non-marking urethane contact).<\/li>\n<li style=\"margin-left:-1.25em;list-style-type:none\"><input type=\"checkbox\" disabled=\"disabled\" \/> <strong>Target System Takt Time<\/strong>: Required cycles per hour (e.g., 20\u201335 coils\/hr), establishing whether dual-ring carriages or high-speed shuttle drives are required.<\/li>\n<li style=\"margin-left:-1.25em;list-style-type:none\"><input type=\"checkbox\" disabled=\"disabled\" \/> <strong>Stacking Pallet Geometry<\/strong>: Pallet dimension, maximum overall stack height, spacer stick automation, and floor layout constraints.<\/li>\n<li style=\"margin-left:-1.25em;list-style-type:none\"><input type=\"checkbox\" disabled=\"disabled\" \/> <strong>Line Footprint Clearances<\/strong>: Available bay length, roller conveyor centerline height, crane hoist clear ceiling limits, and foundation depths.<\/li>\n<li style=\"margin-left:-1.25em;list-style-type:none\"><input type=\"checkbox\" disabled=\"disabled\" \/> <strong>Regulatory Directives<\/strong>: Compliance mandates (CE Machinery Directive, EN standards, OSHA, UL508A electrical panel build).<\/li>\n<\/ul>\n<hr \/>\n<h2>Safety and International Directives<\/h2>\n<p>Heavy coil handling machinery must isolate operational kinetic and stored energy states to prevent pinch, crush, and shearing hazards:<\/p>\n<ul>\n<li><strong>Perimeter Fencing and Interlocking<\/strong>: Total safety fencing around the upender and gantry transfer zones in compliance with <strong>ISO 14120<\/strong>, paired with Category 4 \/ PLe optoelectronic light curtains at conveyor infeed and outfeed points.<\/li>\n<li><strong>Machinery Harmonization<\/strong>: Design execution conforms to <strong>ISO 12100:2010<\/strong> (Risk assessment and risk reduction) and <strong>EN 415-10:2014<\/strong> (Safety requirements for packaging machines: modular wrapping systems).<\/li>\n<li><strong>Anti-Drop Hydraulics<\/strong>: Counterbalance holding valves hard-piped directly to upender hydraulic cylinders to prevent table collapse during sudden line pressure drop.<\/li>\n<li><strong>Energy Isolation (LOTO)<\/strong>: Centralized lock-out\/tag-out stations for electric, pneumatic, and hydraulic circuits in adherence to <strong>OSHA 1910.147<\/strong>.<\/li>\n<\/ul>\n<hr \/>\n<h2>Engineering FAQ<\/h2>\n<h3>What is the primary operational purpose of this integrated line?<\/h3>\n<p>The line automates three labor-intensive post-slitter tasks: tilting individual slit coils 90\u00b0 into a horizontal bore position, applying a sealed stretch film cocoon through the coil core eye, and palletizing wrapped coils via an automated overhead gantry without crane intervention.<\/p>\n<h3>Why must the slit coil be tilted before eye-through wrapping?<\/h3>\n<p>Slit coils transferred in eye-to-the-sky orientation on flat surfaces cannot be wrapped through the eye because the lower face is blocked by conveyor beds. Tilting to an eye-to-the-wall position (bore horizontal) provides clear axial clearance for the rotating orbital ring shuttle to pass through the inner center cavity.<\/p>\n<h3>Why is overlap calculation referenced to coil OD instead of ID?<\/h3>\n<p>Because the inner core diameter has a significantly smaller circumference than the outer perimeter (<code>&pi; &times; ID &lt; &pi; &times; OD<\/code>), calculating linear advance using the inner diameter would produce coverage gaps across the outer circumference. Grounding advance calculations at the outer circumference ensures 100% film coverage across all coil surfaces.<\/p>\n<h3>How do modern wrapping lines maintain precise overlap percentages?<\/h3>\n<p>The line&#8217;s PLC links the wrapping ring motor drive with the conveyor support roller motor drive. By calculating the ratio between the rotation frequency (RPM) of the ring and the surface peripheral drive speed of the support rollers, the system maintains a constant film advance per turn, regardless of varying coil diameters.<\/p>\n<h3>Can narrow coils (e.g., 20\u201350 mm width) be wrapped without toppling?<\/h3>\n<p>Yes. Automated packaging lines use adjustable polyurethane-coated lateral stabilizing rollers or top-clamping pneumatic press arms. These hold the narrow coil firmly vertical while it rotates on the bottom cradle rollers during the wrapping cycle.<\/p>\n<h3>What parameters determine stacking gantry design?<\/h3>\n<p>Gantry selection depends on maximum unit coil weight, required stack height, and surface quality constraints. High-production facilities use servo-driven gantries with mechanical ID-expanding grippers or electromagnetic lifting pads, integrating automated timber spacer placement between stacked tiers.<\/p>\n<hr \/>\n<h2>Next Steps for Project Engineering<\/h2>\n<p>To configure a custom slit coil packaging line:<\/p>\n<ol>\n<li><strong>Submit Process Data Sheet<\/strong>: Send your master coil sizes, slit width range, maximum coil weight, and throughput targets (coils\/hour) to <strong><a href=\"mailto:info@fhopepack.com\">info@fhopepack.com<\/a><\/strong>.<\/li>\n<li><strong>Review Layout Drawing &amp; Proposal<\/strong>: Receive an integrated system footprint layout, cycle-time simulation, film consumption analysis, and equipment budget within 48 hours.<\/li>\n<li><strong>Engineering Site Audit<\/strong>: Schedule a site review to align slitter discharge elevations, electrical connections, and floor foundation specifications.<\/li>\n<\/ol>\n<hr \/>\n<h2>Related Reading<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.fhopepack.com\/videos\/coil-tilter-with-rotary-base\/\">Coil Tilter with 180 Degree Rotary Base<\/a><\/li>\n<li><a href=\"https:\/\/www.fhopepack.com\/videos\/engineering-design-principles-for-downstream-slit-steel-coil-finishing-balancing-structural-rigidity-and-delicate-coil-protection-during-tilting-and-strapping\/\">Slit Coil Strapping, Wrapping and Stacking Line<\/a><\/li>\n<li><a href=\"https:\/\/www.fhopepack.com\/videos\/eliminating-bottlenecks-why-your-steel-processing-center-needs-an-automated-coil-stacking-line\/\">Automatic Steel Coil Stacking and Palletizing Gantry<\/a><\/li>\n<li><a href=\"https:\/\/www.fhopepack.com\/Automatic-Coil-Packing-Line\/slit-coil-packing.html\">Slit Coil Packing Line Solutions \u2014 Technical Catalog<\/a><\/li>\n<\/ul>\n<h2>Engineering Sources &amp; Standards<\/h2>\n<ul>\n<li>Equipment Design: FHOPE Packaging Machinery System Group, 2026<\/li>\n<li>Line Video Reference: <a href=\"https:\/\/www.youtube.com\/watch?v=b45MTJ78fiw\">YouTube System Documentation<\/a><\/li>\n<li>Safety Standard Scope: <a href=\"https:\/\/www.iso.org\/standard\/51528.html\">ISO 12100:2010 Machinery Safety<\/a>; <a href=\"https:\/\/www.nen.nl\/en\/nen-en-415-10-2014-en-191845\">EN 415-10:2014 Packaging Machine Safety<\/a><\/li>\n<li>Proposal SLA: House CTA standard (Turnaround within 48 hours)<\/li>\n<\/ul>\n<p><strong>Last reviewed: 2026-10-27<\/strong><\/p>","protected":false},"excerpt":{"rendered":"<p>Executive Summary In automated slit coil packaging, coordinating kinematics across the 90\u00b0 upender, orbital eye-through wrapper, and stacking gantry defines line throughput and surface protection. Setting the film overlap ratio establishes the required wrapping ring [&hellip;]<\/p>","protected":false},"author":4,"featured_media":15262,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"Slit Coil Tilting, Wrapping and Stacking Line: Film Overlap","_seopress_titles_desc":"Our slit coil line tilts each coil, wraps it eye-through and stacks it with a gantry: what the clip shows and how film overlap sets the number of wraps.","_seopress_robots_index":"","_seopress_robots_follow":"","_seopress_robots_imageindex":"","_seopress_robots_snippet":"","_seopress_robots_primary_cat":"","_seopress_robots_breadcrumbs":"","_seopress_robots_freeze_modified_date":"","_seopress_robots_custom_modified_date":"","_seopress_robots_canonical":"","_seopress_social_fb_title":"","_seopress_social_fb_desc":"","_seopress_social_fb_img":"","_seopress_social_fb_img_attachment_id":0,"_seopress_social_fb_img_width":0,"_seopress_social_fb_img_height":0,"_seopress_social_twitter_title":"","_seopress_social_twitter_desc":"","_seopress_social_twitter_img":"","_seopress_social_twitter_img_attachment_id":0,"_seopress_social_twitter_img_width":0,"_seopress_social_twitter_img_height":0,"_seopress_redirections_value":"","_seopress_redirections_enabled":"","_seopress_redirections_enabled_regex":"","_seopress_redirections_logged_status":"","_seopress_redirections_param":"","_seopress_redirections_type":0,"_seopress_analysis_target_kw":"","_seopress_news_disabled":"","_seopress_video_disabled":"","_seopress_video":[],"_seopress_pro_schemas_manual":[],"_seopress_pro_rich_snippets_disable_all":"","_seopress_pro_rich_snippets_disable":[],"_seopress_pro_schemas":[],"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","theme-transparent-header-meta":"default","adv-header-id-meta":"","stick-header-meta":"default","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"fifu_image_url":"","fifu_image_alt":"","footnotes":""},"categories":[1149,1148,262,1159,1082,11,13],"tags":[],"class_list":["post-15437","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-aluminum-coil-packing-line","category-automatic-copper-strip-coil-packaging-line","category-automatic-packing-line","category-coil-packing-line","category-cold-roll-steel-coil-packing-system","category-copper-coil-packing-machine","category-steel-coil-wrapping-machine-copper-coil-packing-machine"],"_links":{"self":[{"href":"https:\/\/www.fhopepack.com\/videos\/wp-json\/wp\/v2\/posts\/15437","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.fhopepack.com\/videos\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.fhopepack.com\/videos\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.fhopepack.com\/videos\/wp-json\/wp\/v2\/users\/4"}],"replies":[{"embeddable":true,"href":"https:\/\/www.fhopepack.com\/videos\/wp-json\/wp\/v2\/comments?post=15437"}],"version-history":[{"count":8,"href":"https:\/\/www.fhopepack.com\/videos\/wp-json\/wp\/v2\/posts\/15437\/revisions"}],"predecessor-version":[{"id":17645,"href":"https:\/\/www.fhopepack.com\/videos\/wp-json\/wp\/v2\/posts\/15437\/revisions\/17645"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.fhopepack.com\/videos\/wp-json\/wp\/v2\/media\/15262"}],"wp:attachment":[{"href":"https:\/\/www.fhopepack.com\/videos\/wp-json\/wp\/v2\/media?parent=15437"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.fhopepack.com\/videos\/wp-json\/wp\/v2\/categories?post=15437"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.fhopepack.com\/videos\/wp-json\/wp\/v2\/tags?post=15437"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}