Custom Precision Sheet Metal Vent Exhaust
CUSTOM-BUILT · MOQ 1 PIECE

Custom Precision Sheet Metal – Electrical Cabinet Supplier | OEM/ODM

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. SanJun Hardware manufactures custom precision ventilation
  2. We fix common manufacturing defects like uneven airflow
  3. Multiple metal materials and anti-corrosion surface
  • ✓ 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

Descripción general del producto

Descripción general del producto

SanJun Hardware personaliza las carcasas de chapa metálica para la salida de ventilación de los módulos de ventilación de los armarios de control de equipos inteligentes, solucionando los problemas de sobrecalentamiento y mala circulación de aire en los armarios eléctricos y de automatización. La estructura optimizada del flujo de aire interno equilibra la disipación eficiente del calor, la resistencia al polvo y la estabilidad estructural para los nuevos dispositivos de energía, control de incendios y monitorización.

Custom Precision Sheet Metal – Electrical Cabinet Supplier | OEM/ODM插图

Puntos fuertes clave y dificultades resueltas en el sector

  1. Diseño de dibujos personalizados gratuito (Ventaja principal)

    Solo necesita proporcionar el tamaño del equipo, el volumen de ventilación y los requisitos de instalación. Nuestros ingenieros realizan los planos de optimización CAD y DFM sin costo alguno, sin necesidad de que usted mismo elabore los diseños, lo que reduce su ciclo de I+D y sus gastos.

  2. Superar los principales problemas de procesamiento
  • Diseño personalizado de las rejillas de ventilación para lograr una salida de aire uniforme y eliminar el sobrecalentamiento localizado.
  • Corte y doblado láser con tolerancia ajustada de ±0,1 mm para evitar desajustes en el montaje.
  • Estructura de nervaduras reforzadas para evitar la deformación de la delgada carcasa metálica bajo vibración prolongada
  • Tratamientos superficiales multicapa anticorrosión para condiciones de trabajo exteriores húmedas y corrosivas.
  • Personalización completa del tamaño, la posición de la ventilación y el soporte de montaje, sin ajustes estándar.

Procesamiento integral de chapa metálica

Todos los procesos se realizan en nuestra fábrica: corte láser, punzonado CNC de lamas, doblado, soldadura, recubrimiento superficial e impresión de logotipos. Materiales: acero laminado en frío, acero galvanizado, acero inoxidable 304/316 y aleación de aluminio. Opciones de acabado: recubrimiento en polvo, trefilado, anodizado y pasivación.

Escenarios de aplicación

Cajas de control para automatización industrial, armarios de ventilación contra incendios, chasis para equipos de energías renovables, envolventes de ventilación para comunicaciones, módulos de ventilación HVAC, cajas de control para distribución de energía.

Garantía de fábrica

Certificación ISO 9001, inspección dimensional completa y prueba de niebla salina antes del envío. Se admiten prototipos de prueba pequeños y pedidos OEM/ODM a granel.

😩 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
± 0,1 mmStandard Tolerance
7–10Days to First Prototype
Certificación 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
Opciones de materialesSPCC / 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)
Tratamiento de superficiePowder coating / anodizing / brushed / zinc plating
Tolerance±0.1 mm standard; ±0.05 mm ultra-precision optional
ProcessesLaser cutting, CNC punching, CNC bending, tapping, riveting
soldaduraSpot welding / argon-arc / full-seam laser welding
AsambleaHardware 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 · 7–10dPrototipo

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

Step 5 · 15–25dProducción masiva

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

Preguntas frecuentes

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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