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.
✅ Free Full Drawing Design Service, No Drawings Needed From You
You only need to inform us your product installation dimensions, assembly logic, working scenarios and performance standards. Our senior engineering team independently completes sketch drafting, detailed dimension layout, structural rationality inspection and formal production drawing output at zero cost. Multiple rounds of drawing optimization & revision are supported until fully matching your assembly requirements. No extra design outsourcing fees, no self-drawing workload for your R&D team.
✅ Professional DFM Manufacturability Optimization
We conduct full DFM analysis at the design stage, revise unreasonable structures that lead to difficult processing, deformation or high costs, optimize material usage and assembly layout in advance, avoid post-sampling rework and greatly reduce your trial risk & overall production cost.
✅ Full In-House Precision Sheet Metal Fabrication
Full production processes under one roof: laser cutting, CNC bending, precision stamping, robotic MIG/TIG welding, tapping, hardware insertion, polishing, powder coating, anodizing, plating and complete assembly. Tight tolerance ±0.1mm, solid structural reinforcement, good heat dissipation & EMI shielding performance for server chassis.
✅ Flexible Production & Fast Lead Time
Support 1-piece prototype & large batch mass production without high MOQ pressure. 24H DFM review & quotation, sampling within 7 working days, mass production finished in 10–15 days based on quantity.
✅ All-Round Customization Support
Custom size, material (SPCC, SGCC, aluminum, stainless steel), ventilation hole layout, mounting brackets, lock structure, surface color, logo printing and IP protection grade to fit data center, industrial workshop, outdoor intelligent equipment and control room use.
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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