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About Us

Why Choose Us?

Sanjun Hardware – Custom Sheet Metal Enclosure Manufacturer

Established in 2010, Sansteed 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.

  • 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

25+

Years Experience

5000+

Square Meter Factory

50+

Cooperative brands

2000+

Types of accessories

Meet Our Team

Expert in Precision Sheet Metal Fabrication

Welding Department

Welding Department

The Sheet Metal Welding department specializes in the forming and processing of metal sheets (cutting, bending, stamping, etc.) and connects these sheet metal components into sturdy, precision parts or structural components through welding processes.

Spraying Department

Spraying Department

The Coating Department of the Sheet Metal Industry is responsible for applying surface coatings to formed sheet metal components, providing them with protective and decorative coatings. This is the final step in ensuring the appearance, weather resistance, and service life of the product.

Fitter Department

Fitter Department

The Sheet Metal Working Department is responsible for the fine adjustment, assembly, connection (riveting/screwing/gluing), and debugging of sheet metal parts, which is a key link in achieving the precise fit and functional integrity of parts.

Cutting Department

Cutting Department

The Sheet Metal Laser/Numerical Control Punching and Blanking Department uses laser cutting machines and numerical control punching machines to precisely cut and punch metal coils or plates into blank parts with the required contours and hole positions.

Business Department

Business Department

The Sheet Metal Business Department serves as the company's external window for sheet metal processing services, coordinating the entire process from customer demand alignment, order review, production coordination, to delivery and payment collection. It acts as the commercial engine driving market development and business growth.

Bending section

Bending section

The Sheet Metal Bending Department is responsible for using CNC bending machines and other equipment to accurately shape flat blank parts into parts with specific angles and three-dimensional structures. This is the core forming process for achieving the geometric shape of product designs.

Assembly Department

Assembly Department

The Sheet Metal Assembly Department is responsible for the final assembly, connection, and debugging of processed and formed sheet metal parts and purchased parts. It is the final assembly stage that forms the complete product structure and realizes the overall functional requirements.

Clients We've Served

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FAQ

Frequently Asked Questions - Custom Sheet Metal Services

FAQ-New20260516
Yes. We support 1PC MOQ, no mold tooling required. All custom sheet metal enclosures can be produced directly per your design.
Absolutely. We customize strictly based on your CAD drawings, design files or physical samples for EV charging and ESS enclosures.
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.
Our products pass ISO9001, EMC, LVD and RoHS, fully compliant for new energy charging and energy storage projects.
We have in-house full-process production with strict schedule control. Stable quality and on-time delivery for long-term global cooperation.
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.
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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