{"product_id":"sh0909-90mm-heavy-duty-mild-steel-transformer-protective-cover","title":"SH0909 90mm Heavy-Duty Mild Steel Transformer Protective Cover","description":"\u003cp\u003eThe \u003cstrong\u003eSUNeMALL SH0909 Series\u003c\/strong\u003e features industrial-grade, factory-direct transformer protective covers engineered specifically for audiophiles, boutique valve amplifier brands, high-fidelity restoration technicians, and DIY tube electronic builders. Designed to cleanly enclose exposed block transformers, choke rails, or medium toroidal units, this series delivers critical electronic shielding and a high-end industrial aesthetic at an economical factory-direct price point.\u003c\/p\u003e\n\u003cdiv style=\"margin: 15px 0; padding: 12px; background-color: #f8f9fa; border-left: 3px solid #3182ce;\"\u003e\n\u003cp style=\"margin: 0; font-size: 0.95em; color: #2d3748;\"\u003e\u003cstrong\u003e📐 Premium Magnetic Flux Containment Shield:\u003c\/strong\u003e This heavy-duty shielding block is fabricated using premium structural mild steel. It serves as an essential mechanical barrier that traps electromagnetic fields (EMF), drastically reducing inter-component noise induction and keeping sensitive audio preamp paths entirely clean.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003ch3\u003e🎨 Premium Protective Coating Finish:\u003c\/h3\u003e\n\u003cp\u003eGive your raw output iron, custom power transformers, or hand-wired tube layouts a clean, professional finish on the chassis:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSatin Industrial Black Body:\u003c\/strong\u003e Coated in a uniform, high-durability painted protective finish across the entire steel housing to prevent atmospheric oxidation, resist scuffs, and highlight tube filament glows.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e📐 Technical Specifications \u0026amp; Variant Configuration Matrix:\u003c\/h3\u003e\n\u003cp\u003eChoose the optimal mounting style to match your underlying amplifier deck chassis parameters:\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSH0909 (Standard Four-Corner Mount):\u003c\/strong\u003e\n\u003cul\u003e\n\u003cli\u003eDimensions: Width 3.5\" (90mm) x Height 3.5\" (90mm) x Depth 3.5\" (90mm)\u003c\/li\u003e\n\u003cli\u003eMaterial: 1.0mm thickness mild steel body architecture\u003c\/li\u003e\n\u003cli\u003eWeight: Approx. 0.7 lbs \/ 321g\u003c\/li\u003e\n\u003cli\u003eMounting Layout: Four-corner integrated mounting footprint measured at 17mm x 17mm with dedicated M5 holes (requires standard M5 machine thread screws; not included)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003e⚙️ Key Product Features:\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003eSuperior RF \u0026amp; EMI Noise Protection:\u003c\/strong\u003e The dense, seamless metal structural walls establish a high-performance continuous Faraday block. This design successfully eliminates environmental stray radio frequencies and high-voltage hum, improving overall signal clarity in Hi-Fi tube setups.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eShipped Fully Pre-Assembled for Immediate Staging:\u003c\/strong\u003e Arrives at your workshop perfectly formed with sharp alignment seams and clean edges, completely eliminating tedious alignment or sheet folding. Technicians can instantly drop the cover over mounted transformer components straight out of the box.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eHighly Machinable Steel Canvas:\u003c\/strong\u003e Arrives with a smooth, un-drilled solid surface profile. The premium mild steel material can be easily modified, locally custom-drilled, or CNC hole-punched to accommodate specialized top wire exits, side terminal leads, or grounding lug points.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003ePre-Punched Toolless Knockout Fields:\u003c\/strong\u003e Stamped with precision-scored circular knockout segments on the chassis panel. This electrical-ready design allows field technicians to easily pop open wire entry corridors using a standard screwdriver, enabling clean cable routing and instant conduit attachment without tedious drilling.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eRigid Vibration-Free Fastening Base:\u003c\/strong\u003e Engineered to mount perfectly level onto the amplifier's top plate deck. Both the bracket tab layout (SH0909) and the built-in stud layout (SH0909A) ensure reliable mechanical tension to prevent humming or transformer microphonics.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cdiv style=\"margin-top: 25px; padding: 15px; border: 1px dashed #cbd5e0; border-radius: 4px; background-color: #fffaf0;\"\u003e\n\u003cp style=\"margin: 0; font-size: 0.9em; color: #744210;\"\u003e\u003cstrong\u003e🏭 Commercial Production Runs \u0026amp; Custom CNC Punching:\u003c\/strong\u003e Planning a commercial hardware rollout? We save you valuable assembly labor. We provide factory CNC punching for any layout or socket dimension, custom powder color coatings, and high-definition silk-screen branding. Submit your specs via our \u003cstrong\u003e\u003ca href=\"https:\/\/nauj1m-em.myshopify.com\/pages\/custom-quote-request\" title=\"Custom Manufacturing\"\u003eCustom Manufacturing\u003c\/a\u003e\u003ca href=\"https:\/\/nauj1m-em.myshopify.com\/pages\/custom-quote-request\" title=\"Custom Quote Request\"\u003e\u003c\/a\u003e\u003c\/strong\u003e portal for a direct estimate.\u003c\/p\u003e\n\u003c\/div\u003e","brand":"Sunemall","offers":[{"title":"Default Title","offer_id":50449097523423,"sku":"SH0909-blk","price":100.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0811\/6017\/5839\/files\/sh0909-steel-protective-cover-chassis-black-3d.jpg?v=1782196068","url":"https:\/\/www.sunemall.com\/products\/sh0909-90mm-heavy-duty-mild-steel-transformer-protective-cover","provider":"Sunemall","version":"1.0","type":"link"}