Your Reliable Sheet Metal Manufacturing Partner
Precision OEM/ODM sheet metal enclosures for power distribution, energy storage, EV charging and display equipment. 5,000m² factory, AMADA equipment, MOQ 1 piece.
From a Small Workshop to a Trusted Global Supplier
Established in 2010, SanJun Hardware began as a precision sheet metal workshop in Dongguan, China. Over 16 years, we have grown into a full-service OEM/ODM manufacturer serving clients across Europe, North America, Australia and Southeast Asia.
Our mission is simple: convert your CAD drawings into high-quality sheet metal enclosures — on time, on spec, and at factory-direct pricing. We reinvest 10% of annual profits into R&D and equipment upgrades to stay at the forefront of precision fabrication.
Located in Dongguan — the manufacturing heartland of the Greater Bay Area — we are just 45 minutes from Shenzhen Port and 60 minutes from Guangzhou Port. This strategic location ensures fast, cost-effective shipping to every global market, with weekly container departures to Europe, North America and Australia.
16 years of OEM/ODM experience serving 40+ countries
5,000m² factory with AMADA CNC equipment
50+ skilled workers, in-house engineering team
Meet SanJun Hardware — Our Factory & Craftsmanship
Watch our founder introduce SanJun Hardware’s 5,000m² Dongguan factory, AMADA equipment and complete sheet metal fabrication processes — from laser cutting and CNC bending to welding, powder coating and final assembly.
Core Expertise Across Four Industries
We specialize in custom sheet metal enclosures for the world’s fastest-growing equipment sectors.
Distribuição de energia
Low/medium voltage cabinets, distribution boxes, meter enclosures and control panels.
Armazenamento de energia
BESS cabinet enclosures, battery racks, outdoor ESS containers and PV combiner boxes.
EV Charging
Charging pile enclosures, DC fast charger housings, wallbox and pedestal cabinets.
Display & Kiosk
Self-service kiosks, HMI enclosures, digital signage and educational/medical device housings.
One-Stop Sheet Metal Fabrication
Full in-house capabilities — from your drawing to a fully assembled enclosure ready for installation.
Online Consultation
Discuss your project specs, volume and timeline with our engineers.
DFM & CAD Design
Free production-ready drawings with design-for-manufacturing review.
Quotation & Deposit
Transparent factory-direct quote within 24h. 30% T/T deposit to start.
Prototype & Sample
7–10 day prototype for design validation before mass production.
Inspecção de Qualidade
Full dimensional verification, sealing test and coating adhesion check.
Produção em massa
15–25 day stable batch fabrication with consistent quality control.
Final QC & Packing
100% final inspection and export-grade plywood packaging.
Entrega no prazo
FOB, CIF or DDP shipping worldwide with tracking and photos.
After-sales Support
Responsive technical support and fast reorder service for long-term partnership.
Rigorous Quality Control for Every Enclosure
Every enclosure passes rigorous inspection before it leaves our factory. We provide QC reports and photos with every order, and welcome third-party inspection (SGS / TÜV / BV).
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Full-Dimension Inspection
Every cabinet verified against approved CAD drawings with CMM measurement at ±0.1mm accuracy.
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Sealing Performance Test
IP54–IP65 rating verified through water spray and dust exposure testing.
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Coating Adhesion Check
Cross-hatch test on powder coating ensures 60–80μm uniform thickness and long-term durability.
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Weld & Appearance Inspection
Seam quality, surface finish and hardware fit checked by experienced QC technicians.
Advanced Machinery for Precision Fabrication
Our 5,000m² factory is equipped with AMADA and other premium-brand machinery, ensuring consistent precision and scalable production capacity.
Corto de Laser
- AMADA Fiber Laser Cutter3kW / 6kW
- Max Cutting Thickness20mm steel
- Cutting Accuracy±0,05 mm
- Max Sheet Size1500×3000mm
Bending CNC
- AMADA CNC Press Brakes50T / 100T / 160T
- Bending Accuracy±0,1 mm
- Max Bending Length3000mm
- Multi-Axis Backgauge6-axis
Welding & Assembly
- TIG / MIG / Spot Welding8 stations
- Robot Welding Cell2 units
- Hardware InsertionPEM / rivet
- Final Assembly Line2 lines
Tratamento da superfície
- Automated Powder Coating Line120m
- Coating Thickness60–80μm
- Custom RAL ColorsAvailable
- Silk-screen / Laser EngravingIn-house
Explore our most recent custom fabrication projects — from energy storage cabinets to EV charging enclosures.Latest Sheet Metal Enclosures
Trusted by Equipment Builders in 40+ Countries
From European ESS integrators to North American EV charging manufacturers — our enclosures power critical equipment across every continent. Strategic Dongguan location ensures fast, reliable shipping worldwide.
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O que nossos clientes dizem
Global OEMs and equipment builders trust SanJun for consistent quality and reliable delivery.
“SanJun delivered our BESS cabinet enclosures with perfect dimensional accuracy. They identified a structural weakness in our initial design and reinforced it at no extra cost. We’ve reordered 4 times this year.”
“We tested 5 Chinese factories for our EV charging pile housings. SanJun was the only one who hit ±0.1mm bending tolerance on the first prototype. No rework needed — they went straight to mass production.”
“Their powder coating line is impressive — consistent 70μm finish with zero orange peel across 500 units. QC reports with dimensional data and coating thickness arrive with every shipment.”
Perguntas Frequentemente Fazidas
Start Your Custom Sheet Metal Project Today
Send your specs, drawings or even a hand sketch — get free CAD design and a factory-direct quote within 24 hours.
Obtenha design e orçamento gratuitos
✓ Quantidade mínima de 1 peça
✓ Acordo de confidencialidade mediante solicitação
✓ Garantia de 12 a 24 meses
