{"product_id":"custom-engineering-equipment-steel-structure-gantry-crane-bridge-erection-machine","title":"Custom Engineering Equipment Steel Structure | Gantry Crane \u0026 Bridge Erection Machine","description":"\u003ch3\u003eHeavy Equipment \u0026amp; Engineering Machinery Steel Structures\u003c\/h3\u003e\n\u003cp\u003eSunway Steel specializes in custom structural steel fabrication for heavy engineering machinery, lifting equipment, and infrastructure projects. We provide full-lifecycle OEM\/ODM manufacturing—from shop detail drawings (Tekla\/AutoCAD) to precision cutting, heavy welding, trial pre-assembly, and anti-corrosion coating.\u003c\/p\u003e\n\n\u003ch4\u003eKey Capabilities \u0026amp; Technical Specifications:\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eApplicable Equipment:\u003c\/strong\u003e Gantry cranes, overhead bridge cranes, bridge girder launchers\/erection machines, port ship loaders, and portal cranes.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSteel Grades:\u003c\/strong\u003e Q235B, Q345B\/Q355B, S355JR, ASTM A36 \/ A572 Grade 50, or client-specified standards.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFabrication Capacity:\u003c\/strong\u003e Heavy plate cutting and bending up to 50mm+ thickness; large-span box girders, truss structures, and precision-machined connection flanges.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eWelding \u0026amp; Standards:\u003c\/strong\u003e Certified to AISC, EN 1090 (CE), and CWB. Welds comply with AWS D1.1 \/ EN ISO 15614 standards, with 100% NDT (UT\/MT) inspection on key load-bearing joints.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eTrial Pre-Assembly:\u003c\/strong\u003e 100% factory trial assembly before dispatch to verify geometry, camber, and bolt-hole alignment, minimizing on-site installation time.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eSurface Treatment:\u003c\/strong\u003e Sandblasting to Sa 2.5 standard, followed by high-performance epoxy zinc-rich primer and polyurethane topcoat, or hot-dip galvanizing for severe marine environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eExport Packaging \u0026amp; Logistics:\u003c\/h4\u003e\n\u003cul\u003e\n  \u003cli\u003eCustom heavy-duty steel cradles, skid-mounted bundles, and anti-abrasion wrapping.\u003c\/li\u003e\n  \u003cli\u003eOptimized for 40' OT\/FR containers or breakbulk vessel loading directly from Qingdao Port.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch4\u003eRequest a Quote (RFQ):\u003c\/h4\u003e\n\u003cp\u003eSend us your project drawings (CAD \/ Tekla \/ PDF) and specifications. Our engineering team will review your requirements and provide a detailed quotation and DFM feedback within \u003cstrong\u003e24 hours\u003c\/strong\u003e.\u003c\/p\u003e","brand":"Sunway","offers":[{"title":"Default Title","offer_id":49186962768097,"sku":null,"price":1000.0,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0854\/1218\/4289\/files\/7baf104d-254b-497a-a3c6-202507917ac2.png?v=1789979959","url":"https:\/\/sunwaysteel.net\/products\/custom-engineering-equipment-steel-structure-gantry-crane-bridge-erection-machine","provider":"Qingdao Sunway Steel","version":"1.0","type":"link"}