Custom Sheet Metal Fabrication | EV&ESS Enclosures | Sanjun Hardware

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Latest Products

Custom Sheet Metal Enclosures & Parts

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Network Multimedia Devices (2)

Custom Sheet Metal Fabrication for Smart Equipment Housings, Multimedia Device Enclosures, Cold Rolled Steel & Galvanized Steel Shell Custom Machining

We are a full-process precision sheet metal manufacturer specializing in customized housings for intelligent automation equipment, multimedia interactive devices, adopting cold rolled steel and galvanized steel as mainstream raw materials. We have solved typical industry processing challenges: thin plate bending springback & deformation, accumulated assembly tolerance mismatch, welding thermal distortion, poor anti-rust performance of ordinary coating, and inconsistent dimensional consistency for multi-batch mass production. With self-owned laser cutting, CNC bending, precision welding and standardized surface treatment workshops, we strictly control assembly precision and exterior cosmetic quality. We deliver one-stop OEM & ODM customization service for intelligent equipment manufacturers, multimedia terminal brands and system integrators worldwide, with stable mass production capacity, optimized structural cost and controllable delivery cycle.
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electrical junction box enclosures

Custom Indoor & Outdoor Electrical Cabinet, Waterproof & Dustproof Junction Box, Custom Laser Cutting, Punching & Chassis Enclosure Fabrication

We are a full-process precision sheet metal manufacturer specializing in tailor-made indoor & outdoor electrical cabinets, waterproof dustproof junction boxes and metal chassis housings with laser cutting and punching processing. We have overcome widespread industry troubles: thin plate bending springback deformation, inconsistent hole position precision in mass punching, poor sealing matching leading to water/dust ingress, welding thermal distortion and uneven coating defects on cabinet surfaces. Equipped with automatic laser cutting, CNC punching, CNC bending, precision welding and complete surface treatment workshops, we strictly control dimensional tolerance and IP sealing performance. We provide one-stop OEM & ODM customization for electrical distributors, automation system suppliers, engineering contractors and equipment manufacturers worldwide, delivering stable mass production, tight lead time and cost-optimized structural solutions.
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Display Screen Housing

Custom Precision Sheet Metal Fabrication | Monitor Enclosure, Display Screen Housing & Medical Equipment Enclosure Custom Machining

We are a full-process precision sheet metal manufacturer specialized in customized housings for monitors, display screens, liquid crystal panel frames and medical instruments. We have conquered pervasive sheet metal manufacturing challenges: thin-plate bending springback & deformation, uneven welding seam flatness, accumulated assembly tolerance mismatches, and defective coating finishes on exposed casings. With automated laser cutting, CNC precision bending, controlled thermal welding and standardized surface coating workshops, we maintain ultra-stable dimensional accuracy and premium cosmetic quality. We provide one-stop OEM & ODM customization for global medical device enterprises, industrial display manufacturers and LCD module suppliers, supporting consistent mass production, shorter lead times and optimized structural cost control.
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Custom Sheet Metal Outdoor Rainproof Monitoring Enclosure

Outdoor Rainproof Monitoring Enclosure, Security Equipment Cabinet, Exterior Waterproof Electrical Distribution Box Manufacturer

We are a professional one-stop sheet metal fabricator specializing in customized outdoor waterproof monitoring & electrical enclosures. We have overcome common industry bottlenecks including cabinet bending deformation, uneven door gap, inconsistent IP sealing performance and poor long-term outdoor anti-corrosion coating stability. With precise dimensional tolerance control, mature waterproof structural design and stable mass production consistency, our enclosures perfectly protect surveillance wiring, switches and power units for outdoor security projects. We support OEM & ODM drawing/sample customization for global security engineering contractors and system integrators.
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Outdoor Rainproof Pole-mounted Monitoring Box

Outdoor Rainproof Pole-mounted Monitoring Box, Waterproof Weak Current Enclosure, External Electrical Junction Box & Distribution Box for Security System

We specialize in custom fabrication of outdoor waterproof pole-mounted electrical & security enclosures via precision sheet metal processing. We overcome cabinet frame deformation, door seam unevenness, IP-grade sealing matching deviation and outdoor anti-rust consistency challenges during production. Precise dimensional control, reliable rainproof structure and stable batch quality perfectly fit surveillance, network wiring and weak current distribution projects, supporting OEM drawing & sample customization for global security system integrators.
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Pressing Bracket Fittings for Distributed Solar Mounting Base System

Mid Clamp, Mid Pressing Bracket & Fixture Accessories for Distributed PV Solar Mounting Base & Solar Panel Support Structure

We are a professional sheet metal manufacturer specializing in customized solar panel mid clamps, mid pressing brackets and mounting fixtures for distributed photovoltaic mounting bases. We effectively solve bending rebound, punching hole offset, uneven stamping forming and batch dimensional inconsistency common in solar accessory production. Strict tolerance control, anti-corrosion surface treatment and high structural rigidity guarantee long-term outdoor service life. We support drawing & sample OEM customization, stable mass production supply for solar system integrators and PV component manufacturers worldwide.
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EV Charging Pile Internal Modules

Custom Precision Sheet Metal Bent Components | Internal Module Protection Housing & Support Brackets for New Energy Energy Storage & EV Charging Piles

We specialize in custom precision sheet metal bending fabrication for energy storage and EV charger internal structural accessories. We overcome ultra-thin plate deformation, complex multi-angle bending tolerance deviation and small-position hole alignment difficulties during production. Strict dimensional consistency, flatness control and batch stability ensure your internal module brackets & protection housings fit perfectly with circuit components, supporting small sample trial orders and large-scale project mass production for global new energy manufacturers.
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7KW 32A Charging Pile Cabinet OEM Source Manufacturer

Source Factory Custom Sheet Metal Fabrication for Tesla EV Charging Pile Pedestal Protection Box Housing, 7KW 32A Charger Pedestal Custom Processing Manufacturer

We are a professional one-stop sheet metal fabrication factory specializing in custom metal housings for Tesla wall connector charging piles, compatible with 7KW 32A home EV chargers. We integrate full in-house laser cutting, CNC bending, precision welding, IP-rated waterproof powder coating, and pedestal integrated forming production lines. Support fully customized size, lock structure, heat dissipation holes, cable outlets, color and silk screen logo per drawings or samples. Our charging protection cabinets adopt thickened SPCC/304 stainless steel, with IP55 waterproof, dustproof, anti-corrosion and anti-theft performance, suitable for indoor & outdoor household, villa and commercial parking lot scenarios. Flexible small trial orders & mass project bulk supply, strict dimensional tolerance control, stable batch quality and punctual delivery help new energy equipment distributors, installers and EV brand suppliers cut procurement costs greatly.
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Custom Industrial PC Sheet Metal Enclosure

Source Factory Custom Industrial Computer Sheet Metal Enclosure, POE Monitoring Host & Motion Controller Chassis Fabrication

We are a direct sheet metal fabrication factory specializing in customized industrial computer chassis for POE surveillance NVR hosts, motion control equipment and industrial automation controllers. With full in-house laser cutting, precision bending, stamping, punching and powder coating workshops, we support customized interface layout, reserved port position, size modification and logo printing according to your drawings. Strict ±0.1mm dimensional tolerance control, dust-proof & anti-corrosion surface treatment, stable batch consistency, flexible MOQ and on-time mass delivery help system integrators, automation companies and security equipment brands cut sourcing costs efficiently.
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Flush Mount Multimedia Low Voltage Box

Recessed Mount Multimedia Low Voltage Box | Thickened Dustproof Anti-Corrosion Wiring Enclosure Manufacturer

As a professional sheet metal fabrication factory, we produce high-quality recessed multimedia low voltage distribution boxes available for bulk wholesale. Our enclosure adopts upgraded thickened SPCC steel panel structure with precise stamping ventilation holes for effective dust prevention. Electrostatic spraying surface treatment delivers outstanding anti-corrosion and anti-rust performance for long-term wall embedded installation. We support standard-size bulk supply and full OEM & ODM customization with tight ±0.1mm dimensional tolerance, consistent batch quality and reliable on-time delivery for global electrical distributors and construction engineering contractors.
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surface mount multimedia box(1)

Surface & Flush Mount Multimedia Distribution Box, FTTH Fiber Wiring Low Voltage Enclosure for Home & Commercial Electrical Distribution

We supply heavy-duty multimedia weak current boxes supporting both surface mount and flush mount installation, perfectly designed for FTTH fiber entry, network wiring and indoor low-voltage power distribution. As a professional sheet metal manufacturer, we support full-size non-standard customization, strict ±0.1mm machining tolerance, thickened cold-rolled steel body and anti-rust electrostatic spraying. Stable batch quality, flexible MOQ and on-time bulk delivery help you win more residential and commercial construction project orders easily.
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Heavy-Duty Network Server Rack Cabinet01

Heavy-Duty Network Server Rack Cabinet — 42U / 37U / 22U

This heavy-duty server rack cabinet adopts high-quality cold-rolled steel sheet metal fabrication, supporting 22U, 37U, 42U multiple standard sizes. Designed with 19-inch universal mounting standard, excellent load-bearing capacity and efficient heat dissipation. Ideal for data centers, server rooms, telecom and network equipment storage, sturdy, durable and fully customizable.
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Custom Power Distribution Cabinets & High Low Voltage Control Boxes

Power Distribution Cabinet, High/Low Voltage Control Box, Base Enclosure, Complete Distribution Panel, Grid-Tie Cabinet

Our custom power distribution cabinets and electrical control boxes are precision-engineered for industrial power systems, renewable energy grid connections, and automation equipment. As a professional sheet metal fabricator, we provide one-stop solutions for high/low voltage control boxes, base enclosures, complete distribution panels, and grid-tie cabinets. Built with thick industrial-grade steel plates and reinforced structural design, our cabinets offer excellent rigidity, impact resistance, and long-term durability. Surface treatments include anti-corrosion powder coating, with customizable IP ratings to meet dustproof and waterproof requirements for harsh industrial environments. We support full OEM/ODM customization, including custom sizes, hole layouts, internal mounting structures, and surface finishes. Our strict dimensional tolerance control ensures perfect assembly compatibility with electrical components, making our cabinets ideal for power distribution, factory workshops, renewable energy stations, and industrial automation applications.
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Custom Sheet Metal Chassis Enclosure for Industrial Control & Mining Cabinets

Custom Chassis Enclosure Fabrication: Spraying, Stamping, Bending, Cutting for Industrial Control & Mining Cabinets

We specialize in custom chassis and enclosure manufacturing for industrial control and mining equipment. Equipped with complete sheet metal processes including laser cutting, stamping, CNC bending, welding and powder coating, our products feature high structural strength, excellent corrosion and vibration resistance to adapt to harsh working environments. We support customized production per drawings and samples to meet diverse client demands.
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Custom Sheet Metal Fabrication for HD 4-in-1 Video Encoder Enclosure (1)

Custom precision sheet metal enclosure fabrication for HD 4-in-1 video encoder, including laser cutting, stamping, bending, welding and powder coating services

We specialize in custom sheet metal fabrication for HD 4-in-1 video encoder. All enclosures adopt advanced laser cutting, stamping, CNC bending and seamless welding technology, with surface powder coating treatment. The products feature compact structure, excellent dustproof & anti-corrosion performance, fully meeting the installation and protection requirements of video encoding equipment. We accept personalized OEM and ODM orders.
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High-precision Sheet Metal Fabrication for New Energy Storage & Industrial Control Enclosures4

Custom Sheet Metal Fabrication for New Energy Energy Storage Enclosure

Professional sheet metal manufacturing for new energy storage and industrial control enclosures. We handle sophisticated processes including laser cutting, precision stamping and powder coating. Featuring complex structural design, strict dimensional tolerance and high sealing requirements, the products demand advanced craftsmanship. Our mature processing technology delivers high rigidity, corrosion resistance and stable performance, meeting stringent industrial application standards.
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Custom Sheet Metal Enclosure for 120KW 160KW EV Charging Pile(4)

Custom Sheet Metal EV Charging Pile Enclosure | 120kW/160kW DC Charger Cabinet | IP54/IP65 Outdoor Waterproof & Corrosion-Resistant

Fully customized sheet metal fabrication including cutting, bending, stamping, welding and powder coating. Premium high-strength metal housing features excellent corrosion and weather resistance. Solid sturdy structure ensures stable long-term outdoor service, tailored perfectly for 120KW/160KW charging pile application.
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Custom 1U2U Rack Mount Server Chassis (1)

Custom 1U/2U Server Chassis, Rack-mounted Network & Industrial Control Metal Enclosure Sheet Metal Fabrication

We provide high-precision custom sheet metal fabrication for 1U/2U rack-mount server chassis and industrial control enclosures. Featuring strict dimensional tolerance, stable structure, anti-corrosion powder coating and professional surface finishing, our metal cabinets are widely used for network equipment, industrial hosts and communication devices. We support full OEM & ODM customization, from cutting, stamping, bending to welding and coating, delivering stable, durable and cost-effective industrial sheet metal housing solutions for global customers.
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EV Charger Enclosure Sheet Metal Fabrication

Custom Sheet Metal Fabrication for EV Charger Enclosures | New Energy Hardware Chassis, Stamping & Powder Coating Services

Professional sheet metal manufacturer specializing in EV charger enclosures. We offer stamping, welding, coating and customized processing services. Durable, high-protection housings for new energy equipment, reliable OEM&ODM solutions.
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OEM Factory Precision Custom Stainless Steel Aluminum Stamping Laser Cutting Bending Sheet Metal Fabrication

OEM Factory Precision Custom Sheet Metal Fabrication

Customized sheet metal fabrication with advanced laser cutting, bending, and stamping processes. The product is made from high-quality stainless steel and aluminum, ensuring durability and precision. Certified by ISO9001, it guarantees compliance with international quality standards, enhancing buyer confidence in product reliability.
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Production Process – One‑Stop Sheet Metal Fabrication

Custom Sheet Metal Enclosure for 120KW 160KW EV Charging Pile(1)
About Us

Why Choose SanJun for Custom Metal Enclosures?

SanJun Hardware – Custom Sheet Metal Enclosure Manufacturer

Established in 2010, SanJun Hardware is a professional Chinese manufacturer specializing in OEM and ODM sheet metal fabrication and custom enclosure production. With a 5,000-square-meter factory, we deliver high-precision custom sheet metal solutions to clients worldwide.

1. Core Expertise

We customize sheet metal enclosures for the following equipment:
  • Display devices and self-service terminals
  • Educational and medical equipment
  • Power distribution and charging cabinets
  • Automation equipment housings and energy storage systems
We convert your CAD drawings into finished sheet metal products and cabinets ready for mass production.

2. One-stop Sheet Metal Service

Full in-house processing capabilities:
  • Design and DFM technical support
  • CNC punching, laser cutting and CNC bending
  • TIG/MIG welding and automatic riveting
  • Surface treatment and complete assembly
Fully assembled enclosures and sheet metal parts are available for direct installation.

3. Production Scale & Capacity

  • 50 skilled workers and professional engineering team
  • Advanced facilities: AMADA CNC punching & bending machines, laser cutters, automatic riveters
  • Flexible production for prototype orders and mass batches
  • Strict quality inspection and on-time delivery management

4. Quality & Competitive Strength

  • Certified with ISO 9001:2008 (GB/T19001-2008)
  • 10% of annual profits reinvested in R&D and technological improvement
Our strengths cover stable quality, cost-effective pricing and short lead time. We serve as a reliable long-term supplier for display, self-service terminal, power and new energy industries.

sanjun
about1
Our advantages:
  • No mold required, 1PC MOQ, custom available.
  • 24H DFM Quote, Fast Response & Sampling
  • Qualified with ISO9001, EMC, LVD & RoHS standards
  • Military-grade quality, affordable price
01

Precision & Dimensional Consistency

Tight tolerance guaranteed. Consistent dimension in mass production for perfect seamless assembly.
02

One-Stop Full Process Fabrication

In-house full service from design, laser cutting, bending, welding to coating and final assembly.
03

Stable Quality & On-Time Delivery

Certified stable quality with strict production control. Punctual delivery for long-term reliable cooperation.
Contact Us-320X320-20260611

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    1. Upload CAD Files

    Select your manufacturing process and upload 3D CAD files/drawings for custom sheet metal enclosures, cabinets or parts, including material, thickness and quantity.

    2. Get DFM Review & Quote

    Within 24 hours you receive a design‑for‑manufacturability check plus a detailed quotation with pricing and lead time for your sheet metal parts.

    3. Manufacturing Starts

    After approval, CNC punching, laser cutting, bending, welding, finishing and assembly are carried out in‑house according to your CAD and BOM.

    4. Quality Check & Shipping

    All parts and enclosures pass inspection, are securely packed, and shipped on time so they arrive ready for installation.

    Latest News

    Insights into Sheet Metal & Custom Enclosures

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    Top 5 Trends Shaping Battery Energy Storage System (BESS) Enclosure Design in 2026

    Top 5 BESS Enclosure Trends Shaping Battery Storage in 2026

    Discover the top 2026 BESS enclosure design trends. San Jun Hardware provides custom, high-precision IP66 & thermal-managed energy storage cabinets.
    Advanced Hidden Seam Grinding for Premium Hardware Enclosures

    Advanced Hidden Seam Grinding for Premium Hardware Enclosures

    Discover San Jun Hardware’s advanced hidden seam welding and precision grinding. Elevate your premium kiosk enclosures with flawless, durable finishes.
    Choosing the Right Housing for 24, 27, and 32-Inch Self-Ordering Kiosks

    Custom Kiosk Enclosures: Choosing 24, 27 & 32-Inch Housing

    Build perfect kiosks with San Jun Hardware! Get precision-engineered 24, 27 & 32-inch metal housings with professional DFM reviews & global delivery.
    Custom 1U vs. 2U Chassis Rack-Mount Enclosures for Networks

    1U vs. 2U Chassis: Custom Rack-Mount Enclosures for Networks

    Need the perfect rack-mount chassis? Compare 1U vs. 2U enclosures for your network. Expert custom fabrication with precision DFM, cooling, and QC.
    Antimicrobial Surface Finishes for Self-Service Hospital Terminal Housings

    Antimicrobial Surface Finishes for Medical Terminal Housings

    Antimicrobial Medical Kiosks, Hospital Terminal Housings, Custom Sheet Metal Fabrication, Medical-Grade Enclosures
    Choosing Sheet Metal between Aluminum and Galvanized Steel for Commercial DC Fast Charger Cabinets

    Aluminum vs Galvanized Steel for DC Fast Charger Cabinets

    Choose the perfect metal for your DC fast charger enclosures. Explore aluminum and galvanized steel solutions with San Jun Hardware's CNC fabrication.
    FAQ

    Frequently Asked Questions - Custom Sheet Metal Services

    FAQ-20260611
    Yes. We support 1PC MOQ, no mold tooling required. All custom sheet metal enclosures can be produced directly per your design.
    Yes, we accept custom sheet metal fabrication strictly based on your 2D/3D drawings. We provide free DFM checking, follow your exact material, tolerance and finishing requirements. Both prototype and mass production are available with full quality control and export standard packaging.
    We provide 24H DFM drawing review and formal quote after receiving your technical requirements.
    Yes. We offer fast prototype sampling according to your drawings, helping you verify structure and size before bulk order.
    All our products have obtained ISO9001, EMC, LVD and RoHS certifications. We fully comply with global safety and quality standards, delivering stable, trustworthy solutions for all project applications.
    We operate our own factory and provide one-stop full in-house production. Strict process control and standardized quality management guarantee stable product quality and punctual delivery, building reliable long-term global partnerships.
    We process a full range of standard and high-performance sheet metal materials, including stainless steel (304/316), aluminum (5052/6061), cold/hot rolled steel, galvanized steel, brass and copper. We can also source special materials according to your project requirements.
    Our standard machining tolerance is ±0.1mm for laser cutting and bending. For high-precision parts, we can reach ±0.05mm based on material thickness and part structure. All dimensions are 100% inspected before delivery to meet your requirements.
    Yes, we provide one-stop full surface treatment services, including powder coating, painting, anodizing, sandblasting, brushing, electroplating, passivation, polishing and heat treatment. We can customize colors and effects according to your design.
    Yes, we always sign NDA (Non-Disclosure Agreement) before receiving any drawings or design details from customers. We strictly protect your intellectual property and keep all your projects confidential.
    Latest Case

    Sheet Metal Case Studies | Custom Enclosure Projects

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    25+

    Years Experience

    5000+

    Square Meter Factory

    50+

    Cooperative brands

    2000+

    Types of accessories

    Testimonials

    What Our Clients Say

    Global Clients’ Real Feedback on Custom Sheet Metal Enclosures & One-Stop Processing Services

    What Our Clients Say-01
    "±0.01mm positional accuracy for all interface cutouts. 470 units delivered 3 days early with zero defects. Unmatched precision for our 5G power modules."
    Service 9

    Olivia

    Chief Procurement Officer, Telecom Systems GmbH
    What Our Clients Say-02
    "Sanjun delivered 300 wall-mounted server chassis 4 days early with 100% quality pass rate. Their hybrid ventilation design solved our 24/7 overheating issue, and reinforced structure increased load capacity by 30%. After 6 months of flawless operation, we signed a 3-year exclusive agreement. They are our most reliable sheet metal partner."
    Service 10

    Darlene Robertson

    Engineering Director, DataEdge Solutions (USA)
    What Our Clients Say-03
    "Sanjun solved our toughest challenges: ±0.01mm multi-interface alignment, slim design with 20% enhanced strength, and consistent quality across 800 units. Delivered 4 days early with 100% pass rate. We signed a 2-year exclusive agreement."
    Service 1

    Chloe

    Product Manager, ProAV Solutions (Australia)
    What Our Clients Say-04
    "Sanjun solved all our core challenges: 3.4cm ultra-slim design with 22% higher rigidity, ±0.01mm interface alignment, zero color difference across 1,000 units, and efficient honeycomb cooling. Delivered 5 days early with 100% pass rate. We signed a 3-year exclusive agreement."
    Service 2

    Ethan

    General Manager, Smart Electronics (Singapore)
    What Our Clients Say-05
    "Sanjun solved all our critical challenges: 4.5cm slim rack design with 25% enhanced rigidity, ±0.01mm complex interface alignment, zero color difference across 190 units, and efficient honeycomb cooling. Delivered 2 days early with 100% pass rate. We signed a 2-year exclusive agreement."
    What Our Clients Say-05-1

    David Miller

    Technical Director, ProAV Media (Germany)
    Testimonials7
    Fast, professional and high quality. Looking forward to long term business. Thank you!
    Service 4

    Lucas

    consumer
    Testimonials8
    I am very happy with the product I received. it was exactly as described and very well manufactured. Will do business again.
    Service 5

    Eli

    consumer
    Testimonials9
    I'd like to thank you and the team at Sanjun for delivering a nicely product to us and on time. We are very pleased with the product and you will get our future business.
    Service 6

    Tom

    consumer
    Testimonials5
    Sanjun is professional, making sample and mass production cargo Quality is very good! Smooth finish, no scratches. Good packing, no damage during shipment. I'll come back to order again.
    Service 7

    Mia

    consumer
    Testimonials6
    Sunjun is professional, making sample and mass production cargo Quality is very good! Smooth finish, no scratches. Good packing, no damage during shipment. I'll come back to order again.
    Service 8

    Darlene Robertson

    consumer
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