Custom sheet metal, not off-the-shelf — built around your exact requirements.
Every cabinet on this page was built for a specific project. Your dimensions, materials, protection grade, door layout and cable entries are all decided by you — we handle structure design, process planning, fabrication and testing. This page shows what we have done and what we can do for your project.
Our outdoor waterproof monitoring enclosures (also named security equipment cabinets, exterior distribution boxes) are tailor-made metal protective housings engineered for outdoor surveillance, network wiring and weak-current power distribution scenarios.
These enclosures shield internal power adapters, network switches, wiring terminals, surveillance accessories and circuit components from rainwater intrusion, dust, UV aging, moisture and vandalism. Widely deployed for road traffic monitoring, residential community security, factory perimeter defense, hydraulic data collection, solar power stations and outdoor communication wiring projects.
Solved Thin Plate Bending Deformation & Uneven Door Seam Defect
Thin-gauge sheet metal cabinets tend to warp after CNC bending, resulting in inconsistent door gaps and poor closing tightness. We adopt springback compensation molds + multi-point positioning forming technology, strictly control cabinet flatness and straightness, and keep door-box gap uniform within tight tolerance, laying a solid foundation for stable waterproof performance.
Fixed Sealing Groove Mismatch & Water Leakage Risk for Outdoor Application
Ordinary cutting & assembly deviation will damage IP rating and cause rain penetration. We use high-precision laser blanking + post-weld grinding finishing process, matched with customized silicone sealing grooves, ensuring reliable IP54 / IP65 long-term waterproof performance even under harsh outdoor wind and rain exposure.
Eliminated Pole Mount Hole Position Deviation for On-site Installation
Pre-drilled bracket mounting holes often have pitch errors, leading to secondary drilling during pole installation. We adopt integrated one-time punching tooling to guarantee consistent hole spacing, enabling fast assembly on round poles and square poles without field modification.
Optimized Surface Coating to Solve Short Outdoor Anti-rust Lifespan
Conventional spray coating easily peels and rusts after long-term sun & rain erosion. Our full pre-treatment process (degreasing + phosphating) plus uniform electrostatic powder coating improves coverage on welding seams and sharp edges, delivering superior salt spray resistance and extending outdoor service life over 10 years.
In-house Full-process Sheet Metal Production
Fully independent production line: Laser cutting, CNC bending, argon arc welding, grinding, tapping, sealing groove machining, powder coating, assembly. No outsourced procedures, better cost control, shorter lead time and full production traceability for bulk orders.
Deep know-how in outdoor waterproof cabinet structural design, pole-mounted installation structure and internal wiring layout. We can provide professional DFM design optimization proposals to lower your on-site assembly difficulty and after-sales failure rate.
Strict Batch Consistency Quality Control System
Implement first article inspection, in-process dimensional inspection, finished product waterproof sealing sampling test for every order, effectively avoid dimensional fluctuation in mass production, stable long-term bulk supply for large-scale security engineering projects.
Flexible OEM & ODM Customization Service
Customizable material: SPCC cold rolled steel, SGCC galvanized steel, stainless steel, aluminum alloy; customizable overall dimension, door lock structure, pole/wall mounting mode, internal divider layout, cable entry holes, IP waterproof grade and surface finish; laser engraved brand logo and customized export packaging available.
No drawings? No problem. Send your power module specs — our engineers deliver manufacturable CAD drawings free of charge, saving you $500+ in third-party design fees and weeks of engineering time.
Get My Free CAD DesignFully custom sizes matched to your power module, battery bank and maintenance clearance.
SPCC, SGCC galvanized, SUS304 or Aluminum 5052; 1.0–3.0 mm per load and budget.
IP54–IP55 sealing packages; upgraded gaskets and glands for harsher environments.
Single / double / front-access / rear-access doors with custom locks and hinges.
Bottom or side entries, sealed gland positions and sizes to your wiring plan.
Vents, fans, heat exchangers or AC integration — engineered to your heat load.
| Custom Chassis & Precision Structural Parts — Capability Range | |
|---|---|
| Material Options | SPCC / SGCC galvanized steel / SUS304 stainless steel / Aluminum 5052 / 6063 |
| Thickness Range | 0.8 – 3.0 mm (per part function and load) |
| Protection Grade | IP54 – IP65 (for protection boxes & outdoor housings) |
| Surface Treatment | Powder coating / anodizing / brushed / zinc plating |
| Tolerance | ±0.1 mm standard; ±0.05 mm ultra-precision optional |
| Processes | Laser cutting, CNC punching, CNC bending, tapping, riveting |
| Welding | Spot welding / argon-arc / full-seam laser welding |
| Assembly | Hardware insertion, sub-assembly, wiring harness support |
| Finish Options | Deburring, grinding, silk-screen, laser marking |
| Packaging | Export-grade plywood case with anti-rust film |
* All parameters are adjustable to your project. Contact us for a tailored engineering proposal.
Dimensions, module layout, or even a hand sketch — any format works.
Our engineers review manufacturability and propose structure optimizations.
Production-ready drawings delivered for your confirmation. Unlimited revision until approved.
First article produced with full QC report and photos for your approval.
Batch fabrication with in-process inspection at every critical step.
Export plywood packing, FOB/CIF/DDP shipping, 12–24 months warranty.
Quality inspection reports and photos are provided with each order, so you can confirm workmanship before the goods leave our factory. Third-party inspection (SGS / TÜV / BV) is welcome.
Request QC Report SampleSend specs → factory-direct quote in one business day. Volume pricing: unit cost typically drops 30–50% at 100+ pcs.
T/T 30% deposit, 70% balance before shipment. Sample orders and long-term partners: flexible terms available.
FOB, CIF and DDP supported. Export-grade plywood case with anti-rust film as standard.
12–24 months against manufacturing defects. Responsive after-sales with replacement parts support.
SanJun Hardware supplies custom chassis and precision structural parts to industrial equipment makers, automation integrators and electronics manufacturers worldwide. Global OEMs trust us with their production parts — most started with a prototype batch and scaled to ongoing supply.
Send your power module specifications — free CAD design and factory-direct quotation within 24 hours.
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