{"id":4410,"date":"2022-09-20T09:15:16","date_gmt":"2022-09-20T09:15:16","guid":{"rendered":"https:\/\/www.fhopepack.com\/videos\/?p=4410"},"modified":"2026-10-29T00:10:57","modified_gmt":"2026-10-29T00:10:57","slug":"steel-sheet-pallet-inverter","status":"publish","type":"post","link":"https:\/\/www.fhopepack.com\/videos\/steel-sheet-pallet-inverter\/","title":{"rendered":"Steel Sheet Pallet Inverter: C-Type 180\u00b0 Turning, Stack Weight and Selection"},"content":{"rendered":"<blockquote>\n<p><strong>Executive summary<\/strong>\nTurning a stack of steel sheets to change the pallet or reach the underside is risky with a crane and slings.\nA C-type inverter clamps a sheet stack securely between its jaws and turns it on its base, with the operator working from a remote control.\nStack weight follows from the <strong>sheet size and thickness<\/strong> times the <strong>sheet count<\/strong>, and it sets the inverter rating.<\/p>\n<\/blockquote>\n<iframe loading=\"lazy\" width=\"940\" height=\"535\" src=\"https:\/\/www.youtube.com\/embed\/9UC5RU-rK5o\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" allowfullscreen><\/iframe>\n<hr \/>\n<h2 id=\"table-of-contents\">Table of Contents<\/h2>\n<ul>\n<li><a href=\"#video\">How the inverter works<\/a><\/li>\n<li><a href=\"#how-it-works\">How the stack is turned<\/a><\/li>\n<li><a href=\"#weight\">Stack weight from the sheets<\/a><\/li>\n<li><a href=\"#safety\">Controls and safety<\/a><\/li>\n<li><a href=\"#selection-checklist\">Selection checklist for a steel sheet pallet inverter<\/a><\/li>\n<li><a href=\"#engineering-faq\">Engineering FAQ<\/a><\/li>\n<li><a href=\"#next-step\">Next step<\/a><\/li>\n<li><a href=\"#related-reading\">Related reading<\/a><\/li>\n<li><a href=\"#sources\">Sources<\/a><\/li>\n<\/ul>\n<h2 id=\"video\">How the inverter works<\/h2>\n<p>A heavy-duty C-shaped clamp frame stands on a rigid structural base. The sheet stack is loaded directly into the open C-frame envelope, where the hydraulically powered upper and lower jaws close to clamp the load evenly across its surface.<\/p>\n<p>The frame rotates about the central base axis, first moving through approximately 90 degrees to rest on its side, and then continuing through to 180 degrees to invert the load completely. Once the rotation finishes, the jaws open to release the inverted stack for removal. The operator controls the entire sequence from a hand-held remote pendant, maintaining a safe working distance from the rotational envelope.<\/p>\n<h2 id=\"how-it-works\">How the stack is turned<\/h2>\n<p>The standard automatic cycle executes through four distinct engineering phases:<\/p>\n<table>\n<thead>\n<tr>\n<th>Step<\/th>\n<th>Cycle phase<\/th>\n<th>Typical duration<\/th>\n<th>Description<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>1<\/td>\n<td>Clamp<\/td>\n<td>approx. 8 s<\/td>\n<td>The stack is positioned inside the C-envelope and hydraulic jaws close to lock the load.<\/td>\n<\/tr>\n<tr>\n<td>2<\/td>\n<td>Turn to 90\u00b0<\/td>\n<td>approx. 8 s<\/td>\n<td>The drive mechanism turns the frame onto its side, standing the steel stack on edge.<\/td>\n<\/tr>\n<tr>\n<td>3<\/td>\n<td>Turn to 180\u00b0<\/td>\n<td>approx. 20 s<\/td>\n<td>The frame continues smooth rotation to turn the stack fully upside down.<\/td>\n<\/tr>\n<tr>\n<td>4<\/td>\n<td>Release<\/td>\n<td>approx. 8 s<\/td>\n<td>The clamping jaws open fully, clearing the inverted stack for forklift unloading.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p>Stopping the frame at 90\u00b0 stands the stack vertically on edge, which allows easy inspection, de-stacking, or edge trimming. Proceeding to 180\u00b0 turns the stack over entirely, allowing pallet exchange or underside surface treatment. The clamping phase takes only a few seconds and the rotational stages complete smoothly, allowing the entire turnaround cycle to finish in under one minute.<\/p>\n<h2 id=\"weight\">Stack weight from the sheets<\/h2>\n<p>The following worked example illustrates how to determine net steel load:<\/p>\n<table>\n<thead>\n<tr>\n<th>Item<\/th>\n<th>Value<\/th>\n<\/tr>\n<\/thead>\n<tbody>\n<tr>\n<td>Sheet size (illustrative)<\/td>\n<td>1,250 \u00d7 2,500 mm<\/td>\n<\/tr>\n<tr>\n<td>Sheet thickness (illustrative)<\/td>\n<td>2 mm<\/td>\n<\/tr>\n<tr>\n<td>Sheets in the stack (illustrative)<\/td>\n<td>50<\/td>\n<\/tr>\n<tr>\n<td>Steel volume, 1.25 \u00d7 2.5 \u00d7 0.002 \u00d7 50<\/td>\n<td>about 0.313 m\u00b3<\/td>\n<\/tr>\n<tr>\n<td>Weight at 7,850 kg\/m\u00b3<\/td>\n<td>about 2,450 kg<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n<p><em>(Note: Data above is illustrative. Total machine payload must include the steel volume calculation plus the tare weight of the pallet or skid to determine the minimum gross inverter load capacity.)<\/em><\/p>\n<h2 id=\"safety\">Controls and safety<\/h2>\n<p>Operating a heavy steel sheet turnover unit requires strict machine safeguarding. Because the clamp frame turns dynamic loads through up to 180 degrees, personnel must stay well clear of the operational swing perimeter while the machine is energized.<\/p>\n<p>Control is maintained through a low-voltage remote control pendant or an auxiliary console on the base, providing full visibility and immediate emergency-stop access. Loading and unloading must only occur when the frame is fully leveled, locked, and stationary.<\/p>\n<p>Machinery compliance depends on the deployment region:<\/p>\n<ul>\n<li>For CE-marked installations, <strong>ISO 12100:2010<\/strong> dictates the principles for risk assessment and risk reduction.<\/li>\n<li><strong>EN 415-10:2014<\/strong> governs specific safety and operational requirements for packaging and load-handling machinery.<\/li>\n<\/ul>\n<h2 id=\"selection-checklist\">Selection checklist for a steel sheet pallet inverter<\/h2>\n<ul>\n<li><strong>Sheet dimensions and stack profile<\/strong>: minimum and maximum length (L), width (W), thickness, and total pack height.<\/li>\n<li><strong>Maximum gross load<\/strong>: total weight of the heaviest steel stack combined with the transport pallet or skid.<\/li>\n<li><strong>Required rotation angle<\/strong>: dedicated 90-degree upending, full 180-degree pallet inversion, or switchable dual-angle mode.<\/li>\n<li><strong>Control architecture<\/strong>: hand-held pendant control, wireless remote, or automated interlocking base panel.<\/li>\n<li><strong>Material handling interface<\/strong>: loading via overhead crane, standard forklift, or integrated powered conveyor.<\/li>\n<li><strong>Site floor envelope<\/strong>: dedicated footprint for dynamic clearance and perimeter safety interlocks.<\/li>\n<\/ul>\n<h2 id=\"engineering-faq\">Engineering FAQ<\/h2>\n<p><strong>Q: What does the inverter do?<\/strong>\nA: It clamps a dense stack of sheet metal between hydraulic jaws and turns it through 90 or 180 degrees to switch pallets, inspect surfaces, or prepare sheets for feeding.<\/p>\n<p><strong>Q: How do you work out stack weight when sizing the inverter?<\/strong>\nA: Calculate total steel volume by multiplying Length \u00d7 Width \u00d7 Thickness \u00d7 Sheet count. Multiply that volume by carbon steel density (7,850 kg\/m\u00b3) and add the tare weight of the pallet to arrive at the required load rating.<\/p>\n<p><strong>Q: Why stop at 90 degrees?<\/strong>\nA: Stopping at 90 degrees stands the steel stack on its edge, which allows operators to inspect sheet edges, realign skewed layers, or swap handling orientations without inverting the bundle.<\/p>\n<p><strong>Q: How is it controlled?<\/strong>\nA: From a mobile hand-held pendant or wireless remote control, complemented by operational status lights and emergency-stop buttons mounted on the base cabinet.<\/p>\n<p><strong>Q: Can the equipment accommodate custom sheet dimensions and heavier capacities?<\/strong>\nA: Yes. In addition to standard setups, heavy-duty configurations [manufacturer rating] accommodate sheets from L 100\u20133000 mm \u00d7 W 250\u20131850 mm \u00d7 H 10\u2013350 mm, handle payloads up to 15 metric tons, and integrate 2.5 kW rotation motors with 4.5 kW hydraulic power units (using OD 100 mm hydraulic cylinders on machines weighing roughly 4 tons with a footprint of approx. L 3000 \u00d7 W 2200 \u00d7 H 2600 mm). Clamp openings and hydraulic pressures are sized to client specifications.<\/p>\n<h2 id=\"next-step\">Next step<\/h2>\n<p>We plan your steel sheet pallet inverter integration in three structured steps:<\/p>\n<ol>\n<li><strong>Submit your layout drawing<\/strong> along with sheet sizes, maximum stack heights, and gross load weights to <strong>info@fhopepack.com<\/strong>.<\/li>\n<li><strong>Receive a proposal within 48 hours<\/strong>, complete with turning angle specifications, clamping calculations, and control configurations.<\/li>\n<li><strong>Book a site survey<\/strong> to finalize crane\/forklift loading routes, electrical supply requirements, and floor space integration.<\/li>\n<\/ol>\n<h2 id=\"related-reading\">Related reading<\/h2>\n<ul>\n<li><a href=\"https:\/\/www.fhopepack.com\/pallet-inverter\/\">Pallet inverter<\/a><\/li>\n<li><a href=\"https:\/\/www.fhopepack.com\/videos\/c-type-180-degree-pallet-turnover-and-pallet-inverter-from-fhope\/\">Video: C-type 180 degree pallet turnover and pallet inverter<\/a><\/li>\n<li><a href=\"https:\/\/www.fhopepack.com\/videos\/steel-sheet-180-degree-turning-and-upending-process\/\">Video: steel sheet 180 degree turning and upending process<\/a><\/li>\n<\/ul>\n<h2 id=\"sources\">Sources<\/h2>\n<ul>\n<li>Machine technical specifications and configuration data: FHOPE engineering team, 2026-10-04<\/li>\n<li>Steel density calculations: standard physical value for carbon steel, 7,850 kg\/m\u00b3<\/li>\n<li>Worked loading example: FHOPE technical reference data, illustrative values<\/li>\n<li>Product specifications: <a href=\"https:\/\/www.fhopepack.com\/Mechanical\/steel-sheet-upender.html\">steel sheet upender and sheet load inverter<\/a><\/li>\n<li>Related family: <a href=\"https:\/\/www.fhopepack.com\/pallet-inverter\/stationary\/180-pallet-inverter.html\">180\u00b0 Pallet Inverter and pallet exchanger<\/a><\/li>\n<li>Machine in action: <a href=\"https:\/\/www.youtube.com\/watch?v=9UC5RU-rK5o\">the machine on YouTube<\/a><\/li>\n<li>Machine design standards: <a href=\"https:\/\/www.iso.org\/standard\/51528.html\">ISO 12100:2010 Safety of machinery \u2014 General principles for design<\/a><\/li>\n<li>Packaging and turnover safety standards: <a href=\"https:\/\/www.nen.nl\/en\/nen-en-415-10-2014-en-191845\">EN 415-10:2014 Safety of packaging machines \u2014 General requirements<\/a><\/li>\n<\/ul>\n<p><strong>Last reviewed:<\/strong> 2026-10-04<\/p>","protected":false},"excerpt":{"rendered":"<p>Executive summary Turning a stack of steel sheets to change the pallet or reach the underside is risky with a crane and slings. A C-type inverter clamps a sheet stack securely between its jaws and [&hellip;]<\/p>","protected":false},"author":1,"featured_media":4411,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_seopress_titles_title":"Steel Sheet Pallet Inverter with C-Type Clamp","_seopress_titles_desc":"How our C-type steel sheet pallet inverter clamps a sheet stack and turns it through 90 to 180 degrees under remote control, with a stack weight 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