Custom Precision Sheet Metal Bent
CUSTOM-BUILT · MOQ 1 PIECE

Custom Precision Sheet Metal – BESS Cabinet Manufacturer | 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. We specialize in custom precision sheet metal bending
  2. We overcome ultra-thin plate deformation, complex
  3. Strict dimensional consistency, flatness control and batch
  • ✓ 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

Visão geral do produto

Visão geral do produto

Essas peças de metal dobradas sob medida são especialmente desenvolvidas como componentes estruturais internos para sistemas de armazenamento de energia residenciais e comerciais e estações de carregamento CA/CC para veículos elétricos, incluindo invólucros de proteção para módulos, suportes de montagem, estruturas de suporte fixas, blindagens de isolamento e placas dobradas de reforço. Projetadas para acomodar placas de circuito impresso, chicotes elétricos, transformadores e módulos elétricos com firmeza, elas desempenham funções de isolamento, reforço estrutural, resistência à vibração e organização do espaço interno em equipamentos de carregamento e armazenamento de energia.

Principais desafios de processamento que resolvemos (vantagem competitiva essencial)

  1. Problema resolvido de deformação por flexão de chapa fina

    Chapas ultrafinas de aço laminado a frio/liga de alumínio são propensas a empenamento e retorno após a curvatura; adotamos um processo personalizado de matriz de curvatura + conformação por pressão segmentada para controlar o valor de retorno com precisão, garantindo a planicidade dentro de uma faixa rigorosa após a conformação.

  2. Supere a deriva de tolerância complexa em dobramento multiangular e de estampagem profunda.

    Para suportes dobrados com múltiplas curvaturas irregulares, o processamento tradicional causa facilmente extrapolamento dimensional; nossa tecnologia de compensação de dobra CNC pré-programada mantém a tolerância geral dentro de ±0,1 mm, atendendo aos requisitos de montagem de alta precisão de módulos eletrônicos internos.

  3. Desvio de posição do furo coaxial resolvido após curvatura secundária

    Os furos próximos às linhas de dobra frequentemente mudam de posição após a conformação; adotamos um layout de furos de posicionamento pré-dobra + calibração fina pós-conformação para garantir o alinhamento do centro do furo e uma montagem suave dos parafusos sem necessidade de encaixe forçado.

  4. Colapso de borda fixa e defeito de rebarba em ranhuras de curvatura estreitas

    Ranhuras de curvatura estreitas e profundas tendem a apresentar colapso nas bordas e rebarbas ásperas; configuramos punções de curvatura especiais de pequeno porte + desbarbamento completo posterior à retificação para manter as bordas limpas e sem arranhões para a instalação de componentes internos.

Nossas vantagens em termos de força de fábrica

  1. Fluxo de trabalho completo e integrado para chapas metálicas

    Oficina própria de corte a laser, dobra de precisão CNC, rosqueamento, rebitagem, retificação e acabamento de superfícies, sem terceirização de processos, melhor controle de custos e rastreabilidade completa da produção.

  2. Experiência profissional em componentes estruturais para novas energias

    Anos de experiência em processamento de componentes internos para carregadores de veículos elétricos e sistemas de armazenamento de energia, incluindo suportes e invólucros, familiaridade com a lógica de montagem interna, layout de dissipação de calor e projeto estrutural anti-interferência de equipamentos de energia, permitindo fornecer sugestões de otimização estrutural DFM para reduzir a taxa de falhas de montagem.

  3. Controle de qualidade rigoroso para consistência de lotes

    Inspeção da primeira peça, inspeção dimensional durante o processo e medição completa por amostragem de cada lote acabado, evitando efetivamente a flutuação de tamanho na produção em massa e garantindo um cronograma de entrega estável para cooperação de pedidos de longo prazo.

  4. Serviço de personalização flexível

    Aceitamos personalização OEM e ODM com base em desenhos/amostras, com materiais ajustáveis ​​(SPCC, SGCC, alumínio, aço inoxidável), espessura, estrutura de curvatura, posição dos furos, tratamento de superfície (pintura eletrostática a pó, escovação, passivação) e marcação de logotipo personalizada.

Escenários de aplicações

Suportes estruturais internos e invólucros de proteção de módulos para carregadores domésticos CA de 7kW/11kW/22kW, estações de carregamento rápido CC, gabinetes de baterias para armazenamento de energia doméstica, módulos de controle de gabinetes de armazenamento de energia industrial e acessórios de montagem interna para estações de energia de armazenamento de energia isoladas da rede.

😩 Typical Buyer Pain Points

  • Enclosure not matching your charging module dimensions
  • Overheating inside sealed pile housings
  • Poor outdoor sealing causing PCB and connector failure
  • Vandalism and forced entry at public charging sites
  • Cable strain damaging entry points over time
  • Branding and finish looking generic, not premium

✅ How SanJun Solves Them

  • Enclosure engineered around your exact module layout
  • Validated thermal design with louvers and fan provisions
  • IP54–IP65 sealing verified before every shipment
  • Anti-theft locks, reinforced doors and tamper-resistant fixings
  • Reinforced cable glands and strain-relief structures
  • Custom branding, color matching and premium finishes
★ 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
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 EV Charging Pile Enclosure — Capability Range
Opções de materiaisSPCC / SGCC galvanized steel / SUS304 stainless steel / Aluminum 5052
Thickness Range1.2 – 3.0 mm (per pile rating & vandal resistance)
Protection GradeIP54 – IP65 waterproof and dust-proof
Tratamento da superfícieOutdoor weather-resistant powder coating, 60 – 80 μm
Thermal DesignVentilation louvers, fan mounts, heat dissipation channels
Gestão de CaboCable gland entries, hooks, retractable reel mounts
Human InterfaceScreen cutouts, card reader slots, emergency stop openings
MountingFloor-standing pedestal / wall-mounted / pole-mounted
BrandingSilk-screen, logo embossing, custom color matching
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 · 7–10dProtótipo

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

Step 5 · 15–25dProdução em massa

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 charging pile enclosures to EV charger manufacturers, charging network operators and energy companies across global markets. Growing charging brands trust us with their enclosure programs — most scaled from prototype to repeat volume orders.

1,500+Charging enclosures delivered worldwide
0Field sealing failures reported to date
100+Custom projects completed per year

Perguntas Frequentemente Fazidas

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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