Multi-Size Dustproof Outdoor Electrical Enclosure, Surface-Mounted Distribution Box, Electrostatic Powder Coated Jiyi Box for Malls & Factories

SanJun Hardware manufactures multi-size electrostatic powder coated wall-mounted electrical enclosures for outdoor, factory and commercial mall use. Many buyers struggle with no ready drawings, high outsourced design fees and ill-fitting standard boxes that fail dustproof performance. Our veteran sheet metal engineers solve all troubles: we provide 100% free customized structural drawings, full DFM manufacturability analysis & unlimited design revisions based on your mounting size, wiring layout and IP protection demands. No drawing preparation required on your side. We independently finish sketches, dimension drawings, structural inspection and final production drawings, cutting your R&D cycle, design costs and trial risks. All boxes adopt full sealing dustproof structure, uniform electrostatic powder coating with strong rust resistance, available in dozens of standard sizes plus full custom customization.

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Dustproof Electrical Enclosure, Surface Mount Distribution Box, Powder Coated Jiyi Box, Outdoor Metal Cabinet, OEM Sheet Metal Fabrication, Free Drawing Design, DFM Analysis, Industrial Wiring Box, IP Rated Enclosure, One-Stop Sheet Metal Service

1. Brand Strength

SanJun Hardware is a professional one-stop sheet metal OEM factory focusing on outdoor dustproof distribution enclosures, wall-mounted Jiyi boxes and industrial electrical protection cabinets. We have accumulated abundant mass production experience serving factories, shopping malls, construction sites and outdoor automation projects. Equipped with full laser cutting, CNC bending, robotic welding and automatic electrostatic spraying production lines, plus strict multi-stage QC inspection, we deliver stable, long-lasting dustproof metal enclosures with consistent coating quality.

2. Core Competitive Advantages (Solve Your Pain Points)

✅ Free Custom Drawing Design, No Drawings Needed From You

Only share your installation dimensions, internal wiring layout, application environment and protection requirements. Our professional engineering team completes all design work from concept sketch, detailed dimension drawing, structural rationality check to formal production drawing at zero cost. Multiple rounds of drawing optimization & revision are supported until fully matching your wiring and assembly demands. Eliminate expensive external design outsourcing and extra R&D workload for your team.

✅ 专业DFM可制造性优化

We conduct full DFM review at the design stage, optimize unreasonable box structures that cause poor sealing, dust leakage, difficult wiring or high material cost. Avoid post-sampling rework, lower your overall production cost and reduce field failure risks caused by bad enclosure design.

✅ Premium Dustproof & Anti-Rust Electrostatic Powder Coating

Full cold-rolled steel welded body with integrated foam sealing strip to reach IP54/IP65 dustproof grade, effectively blocking dust intrusion in factory and outdoor environments. Uniform electrostatic powder spraying process forms a thick anti-corrosion coating, resisting rust, scratch and UV aging for long-term outdoor service life.

✅ Abundant Standard Sizes + Full Customization

Dozens of ready standard sizes for quick sampling & delivery; fully customizable dimension, door lock, mounting plate, cable knockouts, surface color and IP protection grade to fit industrial workshop, shopping mall power distribution, outdoor monitoring wiring and automation control scenarios.

✅ Flexible MOQ & Fast Lead Time

Support 1-piece prototype and bulk mass orders. 24H DFM review & quotation, sampling within 7 working days, mass production finished in 10–15 days based on quantity.

3. Wide Application Scenarios

Surface-mounted power distribution boxes for factory workshops, mall electrical control cabinets, outdoor dustproof wiring enclosures, monitoring equipment protection boxes, industrial terminal junction boxes, automation equipment metal housings and other wall-mounted electrical protection cabinets.

4. Quality & Delivery Assurance

4-level IQC/PQC/FQC/OQC inspection with dimension and sealing test reports before shipment. Shockproof foam packaging prevents coating scratch and deformation during long-distance sea transport. Accept EXW, FOB, CIF trade terms with stable on-time delivery schedule.

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精密服务器机箱、多功能金属箱体和控制柜 OEM 钣金加工，适用于智能设备外壳

SanJun Hardware is a professional one-stop sheet metal OEM manufacturer specializing in precision server housings, multi-function electrical boxes, industrial control cabinets and smart device enclosures. Many clients struggle with lacking engineering drawings, high outsourced design fees and unoptimized structures causing production delays & high costs. Our veteran sheet metal engineering team solves all these troubles: we provide 100% free customized structural drawings, full DFM manufacturability analysis and multi-round design revisions purely based on your mounting size, assembly functions, application scenarios and performance demands. No drawing preparation required on your side. We cover the full workflow from concept sketch, dimension drawing, structural verification to final production drawing, cutting your R&D cycle, design outsourcing expense and trial-and-error risks significantly. We own complete laser cutting, CNC bending, robotic welding & surface treatment equipment, deliver tight tolerance precision fabrication, support prototype & mass production with flexible MOQ, serving data center, industrial automation, intelligent control and communication equipment industries globally.

高精度钣金加工、机柜底盘面板配件、冲压和折弯零件、智能设备定制精密结构件

SanJun Hardware is a professional high-precision sheet metal OEM manufacturer specialized in custom cabinet panels, chassis panels, equipment panel accessories and precision structural components for intelligent devices. We have overcome multiple common industry defects including thin-plate bending springback, flatness distortion, punching hole position deviation, welding deformation and inconsistent assembly tolerance. Our biggest exclusive advantage: We provide FREE professional drawing design according to your actual demands. Customers do not need to design or provide drawings by themselves. Our in-house engineering team completes structural design, DFM optimization and production drawing output fully on your behalf. With full-process independent production of laser cutting, precision punching, CNC bending and seamless welding, we guarantee ultra-high precision and stable batch consistency, helping global intelligent equipment and electrical manufacturers save R&D cost and shorten project cycle.

定制钣金零件加工、通信机箱外壳加工、智能设备精密结构钣金组件

我们是一家全流程精密钣金制造商，专注于定制钣金组件、通信机柜外壳以及智能自动化设备的高精度结构件。我们克服了行业常见的瓶颈问题：薄板弯曲回弹变形、多结构件累积装配公差不匹配、焊接热变形、通信机箱屏蔽一致性差、批量生产尺寸重复性不稳定以及涂层附着力缺陷。我们拥有自主研发的激光切割、数控精密折弯、精密焊接和标准化后处理车间，严格控制尺寸公差和装配匹配精度。我们为全球通信设备制造商、智能装备企业和自动化系统供应商提供一站式OEM和ODM定制服务，确保稳定的批量生产、优化的结构成本和可控的交货周期。

智能设备外壳、多媒体设备外壳的定制钣金加工，冷轧钢和镀锌钢外壳定制加工

我们是一家全流程精密钣金制造商，专注于智能自动化设备、多媒体交互设备等定制外壳的生产，主要采用冷轧钢和镀锌钢作为原材料。我们解决了行业中常见的加工难题：薄板弯曲回弹变形、装配公差累积偏差、焊接热变形、普通涂层防锈性能差以及多批次批量生产尺寸一致性差等问题。凭借自主研发的激光切割、数控折弯、精密焊接和标准化表面处理车间，我们严格把控装配精度和外观质量。我们为全球智能设备制造商、多媒体终端品牌商和系统集成商提供一站式OEM/ODM定制服务，拥有稳定的批量生产能力、优化的结构成本和可控的交货周期。