{"id":12466,"date":"2026-09-17T08:11:43","date_gmt":"2026-09-17T08:11:43","guid":{"rendered":"https:\/\/www.kscranegroup.com\/?p=12466"},"modified":"2026-09-17T09:33:23","modified_gmt":"2026-09-17T09:33:23","slug":"mgb-double-girder-semi-gantry-crane","status":"publish","type":"post","link":"https:\/\/www.kscranegroup.com\/fil\/mgb-double-girder-semi-gantry-crane\/","title":{"rendered":"MGB Double-Girder Semi-Gantry Crane para sa Mataas na Kapasidad na Pagbubuhat"},"content":{"rendered":"<p>The MGB Double-Girder Semi-Gantry Crane features a double-girder load-bearing structure. Compared with a single-girder semi-gantry crane, its two main girders distribute the trolley and lifted loads across both girders, providing higher load capacity and greater structural rigidity for medium-to-heavy material handling. One side is supported by a ground leg and rail, while the other runs on an existing workshop crane runway beam. This design enables vertical lifting, longitudinal travel, and cross-travel of materials, meeting material-handling needs both inside the workshop and in adjacent outdoor areas.<\/p>\n\n\n\n<p>Equipped with a winch trolley as the lifting mechanism, the crane is suitable for intermittent and repetitive handling of equipment and materials. Compared with full gantry cranes with support legs on both sides, the double-girder semi-gantry design reduces ground-leg and rail occupation, making it well suited for existing workshop upgrades, single-side rail connections, and continuous indoor-to-outdoor material transfer.<\/p>\n\n\n<div class=\"pgc-sgb-cb wp-block-pgcsimplygalleryblock-slider\" data-gallery-id=\"79b46896\" style=\"min-height:400px\"><div class=\"sgb-preloader\" id=\"pr_79b46896\">\n\t<div class=\"sgb-square\" style=\"background:#d4d4d4\"><\/div>\n\t<div class=\"sgb-square\" style=\"background:#d4d4d4\"><\/div>\n\t<div class=\"sgb-square\" style=\"background:#d4d4d4\"><\/div>\n\t<div class=\"sgb-square\" style=\"background:#d4d4d4\"><\/div><\/div><div class=\"simply-gallery-amp pgc_sgb_slider\" style=\"display: none;\"><div class=\"sgb-gallery\"><div class=\"sgb-item\"><a href=\"https:\/\/www.kscranegroup.com\/fil\/mgb-double-girder-semi-gantry-crane\/mgb-double-girder-semi-gantry-crane5\/\" target=\"_blank\"><img decoding=\"async\" alt=\"\" width=\"1448\" height=\"1086\" loading=\"lazy\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/09\/MGB-Double-Girder-Semi-Gantry-Crane5.png\" srcset=\",https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/09\/MGB-Double-Girder-Semi-Gantry-Crane5.png 1448w\" sizes=\"250px\"\/><\/a><\/div><div class=\"sgb-item\"><a href=\"https:\/\/www.kscranegroup.com\/fil\/mgb-double-girder-semi-gantry-crane\/mgb-double-girder-semi-gantry-crane1\/\" target=\"_blank\"><img decoding=\"async\" alt=\"\" width=\"1536\" height=\"1024\" loading=\"lazy\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/09\/MGB-Double-Girder-Semi-Gantry-Crane1.png\" srcset=\",https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/09\/MGB-Double-Girder-Semi-Gantry-Crane1.png 1536w\" sizes=\"250px\"\/><\/a><\/div><div class=\"sgb-item\"><a href=\"https:\/\/www.kscranegroup.com\/fil\/mgb-double-girder-semi-gantry-crane\/mgb-double-girder-semi-gantry-crane2\/\" target=\"_blank\"><img decoding=\"async\" alt=\"\" width=\"1448\" height=\"1086\" loading=\"lazy\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/09\/MGB-Double-Girder-Semi-Gantry-Crane2.png\" srcset=\",https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/09\/MGB-Double-Girder-Semi-Gantry-Crane2.png 1448w\" sizes=\"250px\"\/><\/a><\/div><div class=\"sgb-item\"><a href=\"https:\/\/www.kscranegroup.com\/fil\/mgb-double-girder-semi-gantry-crane\/mgb-double-girder-semi-gantry-crane3\/\" target=\"_blank\"><img decoding=\"async\" alt=\"\" width=\"1448\" height=\"1086\" loading=\"lazy\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/09\/MGB-Double-Girder-Semi-Gantry-Crane3.png\" srcset=\",https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/09\/MGB-Double-Girder-Semi-Gantry-Crane3.png 1448w\" sizes=\"250px\"\/><\/a><\/div><\/div><\/div><script type=\"application\/json\" 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&& window.PGC_SGB.searcher){window.PGC_SGB.searcher.initBlocks()}})()<\/script><\/div>\n\n\n<h2 class=\"wp-block-heading\" id=\"_sPGQ4eUO\">MGB Double-Girder Semi-Gantry Crane Advantages and Disadvantages<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"_oVofm6wU\">MGB Double-Girder Semi-Gantry Crane Advantages<\/h3>\n\n\n\n<ul>\n<li>Double-Girder Structure for Higher Loads: The double-girder design provides more stable load support and higher lifting capacity for medium-to-heavy loads, heavy equipment, and larger-span lifting operations.<\/li>\n<\/ul>\n\n\n\n<ul>\n<li>Compact Layout for Limited Spaces: The overall structure is compact, with a low overall height and small footprint, allowing flexible operation in low-headroom workshops and narrow passages.<\/li>\n<\/ul>\n\n\n\n<ul>\n<li>More Efficient Indoor-to-Outdoor Transfer: One side travels along the existing workshop runway while the other runs on a ground rail, allowing one crane to cover connected indoor and outdoor work areas.<\/li>\n<\/ul>\n\n\n\n<ul>\n<li>Flexible Control Options: Supports multiple control methods, including cabin control, pendant control, wireless remote control, and PLC interlocking control, to suit different operating distances and material-handling requirements.<\/li>\n<\/ul>\n\n\n\n<ul>\n<li>Multiple Lifting Device Options: The MGB Double-Girder Semi-Gantry Crane can be configured with hooks, grabs, electromagnetic lifting magnets, and other lifting devices to meet the lifting and transfer requirements of different material types.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"_jqePKVqN\">MGB Double-Girder Semi-Gantry Crane Disadvantages<\/h3>\n\n\n\n<ul>\n<li>Higher Equipment Cost: The double-girder structure uses more steel and requires more complex supporting components and travel mechanisms, so its overall purchase cost is typically higher than that of a single-girder semi-gantry crane.<\/li>\n<\/ul>\n\n\n\n<ul>\n<li>Higher Dead Weight and Workshop Requirements: With a larger overall weight, the crane places higher load-bearing requirements on workshop runway beams, columns, rails, and foundations.<\/li>\n<\/ul>\n\n\n\n<ul>\n<li>Higher Installation and Maintenance Costs: The more complex structure requires more installation work, while subsequent inspection, servicing, and maintenance costs are also relatively higher.<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">MGB Double-Girder Semi-Gantry Crane Core Components<\/h2>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"730\" height=\"548\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/09\/Winch-Type-Trolleys.webp\" alt=\"\" class=\"wp-image-12473\" style=\"aspect-ratio:1;width:297px;height:auto\"\/><\/figure><\/div>\n\n\n<p>The winch trolley is the core lifting component of a Double-Girder Semi-Gantry Crane. It is typically installed between the two main girders and is responsible for vertical lifting, lowering, and cross-travel of loads. Its advantages include:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\" id=\"_svMEYo5A\">Advantages of Winch-Type Trolleys<\/h3>\n\n\n\n<ul>\n<li>Suitable for Medium-to-Heavy-Duty Lifting: The lifting mechanism can be configured according to lifting capacity, lifting height, and duty class, making it suitable for higher capacities, greater lifting heights, and more demanding material-handling applications.<\/li>\n<\/ul>\n\n\n\n<ul>\n<li>More Stable Lifting Arrangement: Running between the two main girders, the trolley provides a more stable load arrangement for the drum, wire rope, and pulley system, making it suitable for large spans and heavy structural components.<\/li>\n<\/ul>\n\n\n\n<ul>\n<li>Greater Lifting Configuration Flexibility: Drum size, reeving ratio, lifting speed, and control methods can be configured according to site requirements, allowing better adaptation to different loads and operating cycles.<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Structural Feature of Winch-Type Trolleys<\/h3>\n\n\n\n<p>The diagram below illustrates the main structure and component layout of the winch trolley on the MGB Double-Girder Semi-Gantry Crane, providing an overview of its lifting, travel, and braking systems and how they work.<\/p>\n\n\n<div class=\"wp-block-image\">\n<figure class=\"aligncenter size-full is-resized\"><img loading=\"lazy\" decoding=\"async\" width=\"1448\" height=\"1086\" src=\"https:\/\/www.kscranegroup.com\/wp-content\/uploads\/2026\/09\/Structural-Feature-of-Winch-Type-Trolleys.png\" alt=\"\" class=\"wp-image-12471\" style=\"width:725px;height:auto\"\/><\/figure><\/div>\n\n\n<p>The winch trolley is powered by a hoisting motor. The motor\u2019s output passes through a reducer, which reduces speed and increases torque to drive the drum, winding and unwinding the wire rope to raise and lower the load. When the mechanism stops, the brake holds the suspended load in position. The trolley frame supports the lifting mechanism and the forces from the suspended load, transferring them through the wheel assemblies to both main girders for shared support. The reducer provides the output torque required for medium-to-heavy lifting, while the two main girders distribute the forces from the trolley and load and help control structural deformation under heavy loads. Together, they form the structural basis for medium-to-heavy material handling with the MGB Double-Girder Semi-Gantry Crane.<\/p>\n\n\n\n<p>For projects requiring both main and auxiliary lifting, a winch trolley with main and auxiliary hoisting mechanisms can be configured according to actual requirements.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\" id=\"_a1LzfTS4\">MGB Double-Girder Semi-Gantry Crane Selection Guide<\/h2>\n\n\n\n<p>The MGB Double-Girder Semi-Gantry Crane is suitable for projects requiring greater lifting capacity and a semi-gantry runway arrangement. Confirm the following conditions when selecting the crane:<\/p>\n\n\n\n<ul>\n<li>A single-girder semi-gantry crane cannot meet the required load capacity.<\/li>\n\n\n\n<li>A double-girder structure and winch trolley are required.<\/li>\n\n\n\n<li>A usable workshop runway is available on one side.<\/li>\n\n\n\n<li>The site can accommodate the wheel loads and foundation requirements of a double-girder crane.<\/li>\n<\/ul>","protected":false},"excerpt":{"rendered":"The MGB Double-Girder Semi-Gantry Crane features a double-girder load-bearing structure. Compared with a single-girder semi-gantry crane, its two main girders distribute the trolley and lifted loads across both girders, providing higher load capacity and greater structural rigidity for medium-to-heavy material handling. One side is supported by a ground leg and rail, while the other runs [&hellip;]","protected":false},"author":2,"featured_media":12472,"parent":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"single-cranes.php","format":"standard","meta":{"_acf_changed":false,"pgc_sgb_lightbox_settings":"","footnotes":""},"categories":[27],"tags":[904],"acf":[],"_links":{"self":[{"href":"https:\/\/www.kscranegroup.com\/fil\/wp-json\/wp\/v2\/posts\/12466"}],"collection":[{"href":"https:\/\/www.kscranegroup.com\/fil\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.kscranegroup.com\/fil\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.kscranegroup.com\/fil\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.kscranegroup.com\/fil\/wp-json\/wp\/v2\/comments?post=12466"}],"version-history":[{"count":4,"href":"https:\/\/www.kscranegroup.com\/fil\/wp-json\/wp\/v2\/posts\/12466\/revisions"}],"predecessor-version":[{"id":12489,"href":"https:\/\/www.kscranegroup.com\/fil\/wp-json\/wp\/v2\/posts\/12466\/revisions\/12489"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.kscranegroup.com\/fil\/wp-json\/wp\/v2\/media\/12472"}],"wp:attachment":[{"href":"https:\/\/www.kscranegroup.com\/fil\/wp-json\/wp\/v2\/media?parent=12466"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.kscranegroup.com\/fil\/wp-json\/wp\/v2\/categories?post=12466"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.kscranegroup.com\/fil\/wp-json\/wp\/v2\/tags?post=12466"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}