Custom Mini PC Chassis Sheet Metal Enclosure
CUSTOM-BUILT · MOQ 1 PIECE

Custom Mini PC Chassis Sheet Metal Enclosure

Custom sheet metal, not off-the-shelf — built around your exact requirements.

  • Your RequirementsShare drawings, specs or hand sketches
  • Free DFM & CADProduction-ready drawings at no cost
  • Rapid PrototypingFirst sample ships in 7–10 days
  1. SPCC steel with black powder coat finish
  2. Precision perforated ventilation for active cooling
  3. Custom front/rear I/O cutouts to your motherboard layout
  4. Wall-mount bracket ready, compact Mini-ITX form factor
  5. EMI shielding and grounding included
  • ✓ Free CAD design
  • ✓ IP54–IP55
  • ✓ ±0.1 mm tolerance
  • ✓ ISO 9001 factory
  • ✓ Quote in 24h
⚙

You Buy Manufacturing Capability, Not A Fixed Product

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.

  • SPCC cold-rolled steel, 1.2–2.0mm thick
  • IP54–IP65 protection, salt-spray tested
  • Precision CNC bending, ±0.1mm tolerance
  • Full welding + powder coating finish
  • In-house tooling & stamping capability
  • One-stop: design → fabrication → assembly

Product Overview

We manufacture custom Mini PC chassis and small form factor (SFF) computer enclosures for industrial PCs, digital signage players, thin clients and embedded computing systems. Each chassis is laser-cut from SPCC cold-rolled steel, precision bent and finished with black powder coating — built around your motherboard, power supply and I/O layout.

Key features of our Mini PC chassis:

  • Mini-ITX form factor — compact footprint (typically 200×200×50mm class) fitting space-constrained installations
  • Precision perforated ventilation — patterned top and side louvers for active airflow and heat dissipation
  • Custom I/O cutouts — front panel with power button, USB and audio ports; rear panel with HDMI, DP, Ethernet and power entry cut to your board layout
  • Black powder coated finish — scratch-resistant, uniform matte appearance suitable for office and industrial environments
  • Wall-mountable design — integrated mounting points for VESA or wall installation behind displays or under desks
  • EMI shielding — continuous metal enclosure with grounding points for electromagnetic compliance

Whether you need a barebones Mini ITX case for a digital signage player, an industrial control computer enclosure or a custom thin-client chassis, we handle laser cutting, CNC bending, welding, surface treatment and assembly under one roof — delivering finished, ready-to-populate chassis with consistent quality.

😩 Typical Buyer Pain Points

  • Suppliers cannot hold tight tolerances on complex parts
  • Burrs and sharp edges requiring costly rework
  • Inconsistent quality between prototype and production
  • Long lead times blocking your assembly line
  • High tooling costs for low-volume parts
  • Poor communication when drawings need adjustment

✅ How SanJun Solves Them

  • ±0.1 mm standard, ±0.05 mm ultra-precision available
  • Full deburring and edge-finishing as standard
  • Prototype-to-production consistency with in-process QC
  • Prototype in 7–10 days, production 15–25 days
  • No tooling cost for laser-cut and CNC-bent parts
  • Direct engineer contact, fast DFM feedback on your drawings
★ Our Core Advantage

Free Production-Ready CAD Design

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 Design
CAD FREE
MOQ 1Piece — Prototype Friendly
±0.1mmStandard Tolerance
7–10Days to First Prototype
ISO 9001Certified Factory Direct

What You Can Customize

📐Dimensions & Layout

Fully custom sizes matched to your power module, battery bank and maintenance clearance.

🧱Material & Thickness

SPCC, SGCC galvanized, SUS304 or Aluminum 5052; 1.0–3.0 mm per load and budget.

💧Protection Grade

IP54–IP55 sealing packages; upgraded gaskets and glands for harsher environments.

🚪Door & Access

Single / double / front-access / rear-access doors with custom locks and hinges.

🔌Cable Entry

Bottom or side entries, sealed gland positions and sizes to your wiring plan.

🌡️Thermal System

Vents, fans, heat exchangers or AC integration — engineered to your heat load.

Manufacturing Capability & Specifications

Custom Chassis & Precision Structural Parts — Capability Range
Material OptionsSPCC / SGCC galvanized steel / SUS304 stainless steel / Aluminum 5052 / 6063
Thickness Range0.8 – 3.0 mm (per part function and load)
Protection GradeIP54 – IP65 (for protection boxes & outdoor housings)
Surface TreatmentPowder coating / anodizing / brushed / zinc plating
Tolerance±0.1 mm standard; ±0.05 mm ultra-precision optional
ProcessesLaser cutting, CNC punching, CNC bending, tapping, riveting
WeldingSpot welding / argon-arc / full-seam laser welding
AssemblyHardware insertion, sub-assembly, wiring harness support
Finish OptionsDeburring, grinding, silk-screen, laser marking
PackagingExport-grade plywood case with anti-rust film

* All parameters are adjustable to your project. Contact us for a tailored engineering proposal.

How We Work With You — From RFQ to Delivery

Step 1 · 24hSend Requirements

Dimensions, module layout, or even a hand sketch — any format works.

Step 2 · FreeEngineering Review

Our engineers review manufacturability and propose structure optimizations.

Step 3 · FreeCAD Design

Production-ready drawings delivered for your confirmation. Unlimited revision until approved.

Step 4 · 7–10dPrototype

First article produced with full QC report and photos for your approval.

Step 5 · 15–25dMass Production

Batch fabrication with in-process inspection at every critical step.

Step 6Delivery & Support

Export plywood packing, FOB/CIF/DDP shipping, 12–24 months warranty.

Quality Control Before Every Shipment

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 Sample

Pricing & Trade Terms — No Surprises

⏱Quotation within 24 hours

Send specs → factory-direct quote in one business day. Volume pricing: unit cost typically drops 30–50% at 100+ pcs.

💳Payment

T/T 30% deposit, 70% balance before shipment. Sample orders and long-term partners: flexible terms available.

🚢Shipping

FOB, CIF and DDP supported. Export-grade plywood case with anti-rust film as standard.

🛡Warranty

12–24 months against manufacturing defects. Responsive after-sales with replacement parts support.

Proven in the Field

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.

2,500+Precision parts & chassis delivered worldwide
±0.05mmUltra-precision tolerance capability
100+Custom projects completed per year

Frequently Asked Questions

What is the minimum order quantity?
MOQ is 1 piece. We welcome prototype and small-batch orders so you can validate the design before scaling up.
Can you design the cabinet if we don't have drawings?
Yes. Free production-ready CAD drawing design is our core service. Provide your power module dimensions, weight and layout requirements, and our engineers will produce manufacturable drawings for your confirmation.
What drawing formats do you accept?
We accept STEP, IGS, DWG, DXF and PDF sketches. Even a hand sketch with key dimensions is enough to start.
How do you quote? What are the payment terms?
Factory-direct quotation within 24 hours of receiving your requirements. Payment by T/T (30% deposit, 70% before shipment). FOB, CIF and DDP shipping terms supported.
What is the typical lead time?
Samples take 7–10 days; mass production takes 15–25 days depending on quantity and surface treatment requirements.
Can the cabinet achieve IP55 or higher protection?
Yes. Our standard sealing design reaches IP54–IP55, and we can upgrade gaskets, cable glands and door structures for harsher environments.
Do you ship internationally?
Yes, we export worldwide with export-grade plywood packaging, and we support FOB, CIF and DDP shipping terms.

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Start Your Custom Project Today

Send your power module specifications — free CAD design and factory-direct quotation within 24 hours.

Get Free Design & Quote
✓Reply within 24h ✓MOQ 1 piece ✓NDA on request ✓12–24 months warranty
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