Skip to content Skip to footer
https://sheet-metal-factory. com
Dongji Custom Sheet Metal Fabrication Services - 30,000sqm smart factory interior with CNC laser cutting machines

Custom Sheet Metal Fabrication Services

Precision-Built.
Factory-Direct.
Global-Ready.

End-to-end Custom Sheet Metal Fabrication Services from 3,000W–30,000W laser cutting to robotic welding and powder-coat finishing — all under one 30,000㎡ roof. ±0.1mm tolerance. 14-day prototype. No middlemen.

Request a Quote → View Capabilities →
0.1mm
Machining Accuracy
30K㎡
Factory Floor
14
Day Prototype
50+
Export Countries
Production Equipment

Full-Line Manufacturing
Infrastructure

Every process inhouse. No subcontracting, no quality gaps. As a premier provider of Custom Sheet Metal Fabrication Services, our Industry 4.0 floor runs CNC, laser, robotic welding, and finishing in one integrated workflow.

Dongji Intelligent Equipment 30,000㎡ sheet metal fabrication factory floor showing CNC machines and robotic welding stations in Jiangmen Guangdong
Est. 2011 — Jiangmen, Guangdong 30,000㎡ Industry 4.0
Smart Factory
300+ Employees 25%+ Technical Specialists
03
Laser Cutting

Fiber laser systems 3,000W–30,000W. High-speed cutting at 30M/min across mild steel, stainless, aluminum, and galvanized sheet.

3,000–30,000W Power Range
12
CNC Bending

100T press brakes, workpieces up to 3.2M long. Precision backgauge delivers consistent ±0.1mm bend accuracy run to run.

3.2MMax Length
02
CNC Punching

20-ton automated punching at 10M/min. Ideal for high-volume perforated panels, enclosure knockouts, and complex hole patterns.

20TPunch Force
08
Stamping Press

High-performance stamping for mass-production components. Consistent wall thickness, complex geometries, rapid cycle times for large orders.

HighAutomation
05
Robotic Welding

5 welding robots running 24/7. Eliminates human variation. MIG/TIG/spot available. Zero overtime cost for your production schedule.

24/7Non-Stop Operation
01
Powder Coating

Environmentally-standard line. RAL color matching, matte/gloss/texture. Salt spray tested to 5+ year corrosion resistance warranty.

5+ yrCorrosion Warranty
06
End-to-End Workflow

From Drawing to
Delivered Product

Submit DWG, STEP, or IGES to access our Custom Sheet Metal Fabrication Services and receive a factory-direct quote in 24 hours. Prototypes ship in 14–21 days. Every order tracked via ERP + MES for full transparency.

Dongji high-power fiber laser cutting machine precisely cutting sheet metal with golden sparks in dark factory environment
01
DFM Review

Upload CAD files. Engineering team reviews for manufacturability and cost optimization.

24H Quote
02
Material Prep

Domestic-sourced steel, aluminum, stainless. China's #1 global supply position means cost and availability advantage.

0.2–30mm
03
Laser / Punch

Fiber laser or CNC punching to shape. ±0.1mm tolerance held at 30M/min cutting speed.

±0.1mm
04
Bending & Form

12 CNC press brakes form complex 3D geometries. Automated backgauge ensures angle consistency batch after batch.

100T / 3.2M
05
Weld & Finish

5 robots weld 24/7. Powder coating, grinding, and surface treatment inline — zero outsourcing.

5-Year Coat
06
QC & Dispatch

In-house salt spray, tensile, torque, thickness, and auto-inspection before export. MES tracks to door.

ISO9001
Materials & Tolerances

What We Can Process

Supporting our Custom Sheet Metal Fabrication Services, we process from 0.2mm ultra-thin stainless to 30mm structural mild steel — offering six material families, full surface treatment options, and in-house QC.

Various sheet metal material samples including aluminum, mild steel, stainless steel, and galvanized sheets processed at Dongji factory
MaterialThicknessKey ApplicationStock
Mild Steel (SPCC)0.5–20mmEnclosures, framesStandard
Stainless (SUS)0.5–12mmMedical, food, outdoorAvailable
Aluminum Alloy0.5–10mmEV, telecom, panelsStandard
Galvanized (GI)0.3–3.0mmHVAC, outdoor cabinetsAvailable
Copper0.2–6mmBusbars, connectorsAvailable
Acrylic / Mixed2–30mmDisplay, decorative trimAvailable
Precision Specifications
Laser Cutting Accuracy ±0.1mm
CNC Bending Angle Tolerance ±0.5°
CNC Punching Accuracy ±0.1mm
Laser Cutting Speed 30m/min
Max Bending Length 3.2m
Material Thickness Range 0.2–30mm
Prototype Lead Time 14–21days
Powder Coat Warranty 5+years
Dongji automated robotic welding station with industrial welding robot performing precision welds on sheet metal components 24/7
Robotic Welding 5 automated robots · 24/7 continuous · Zero-defect weld monitoring
Industry Applications

Built for Every
B2B Vertical

From EV charging infrastructure to medical equipment housings — if you require Custom Sheet Metal Fabrication Services at volume,Dongji has the equipment, certifications, and capacity to deliver.

EV Charging

Station enclosures, UL-rated cabinets, outdoor-rated powder coat

Server / Data

Rack cabinets, server chassis, precision-cut panel systems

Medical

Stainless equipment housings, cleanroom-rated fabrication

Industrial IoT

Robot control cabinets, sensor enclosures, gateway housings

New Energy

Battery enclosures, power cabinet frames, storage systems

Telecom

Base station housings, antenna brackets, RF shielded enclosures

Appliances

Inner structural frames, decorative panels, vending shells

Export OEM

White-label fabrication — NDA available, 50+ countries served

Smart Terminal

Vending machine shells, smart locker bodies — OEM/ODM complete

Furniture

Metal furniture hardware, shelving systems, brackets and frames

Certifications & Standards

Market-Access Ready
Out of the Box

Every product from our Custom Sheet Metal Fabrication Services leaves Dongji with the paperwork your market requires. No third-party lab delays — our in-house QC lab runs full inspections before dispatch.

ISO 9001 CE FCC UL ETL SGS RoHS KC
Dongji in-house quality control laboratory with tensile testing, salt spray machine, and auto sheet metal inspection equipment
Tensile TesterMaterial strength verification per order
Salt Spray MachineCorrosion resistance up to 500+ hours
Hardness TesterRockwell/Vickers alloy verification
Auto InspectionVision-based dimensional QC at line speed
ColorimeterRAL color matching and consistency
Thickness GaugeUltrasonic and contact measurement
Industry Intelligence

Why Now Is the Time
to Automate Your Supply Chain

Global manufacturing is shifting to robotic-capable suppliers. The data shows why locking in a China-based Industry 4.0 partner for your Custom Sheet Metal Fabrication Services is a strategic advantage.

88%

Growth in metal & machinery industrial robots globally — 41,000 (2020) → 77,000 units (2023). Your competitors are already automating.

IFR World Robotics Report 2024

$866B

Global base metals market 2024, projected to exceed $1 trillion by 2034. Aluminum prices forecast +11.6% by 2027 — lock in cost now.

Statista Base Metal Industry Dossier 2025

#1

China's position in aluminum smelting (45M metric tons) and zinc production. Dongji's Guangdong location sits at the center of this supply chain.

USGS, UN Comtrade 2024

71%

Of industrial automation enterprises already using robotics in 2025. Sheet metal fabrication is at the core — choose a supplier built for this era.

BlackBerry Enterprise Survey 2025

Aerial wide-angle view of Dongji Intelligent Equipment 30,000 square meter smart factory in Jiangmen Guangdong China
Jiangmen, Guangdong — China 30,000㎡ of Precision
Manufacturing Capacity 300+ engineers · 25% technical specialists · ERP + MES tracking

Ready for Custom Sheet Metal Fabrication Services?

Get a Factory-Direct
Quote in 24 Hours

Upload your DWG, STEP, or IGES files — our engineering team responds with a DFM-reviewed quotation within one business day. Free sample available. NDA upon request.

24-Hour Quotation Free Prototype Sample NDA Available ISO9001 · CE · UL Certified Export to 50+ Countries Low MOQ Accepted
Request a Quote Now → WhatsApp Engineering Team →

Email: hello@sheet-metal-factory.com  ·  Tel: 0750-7173188

Your Trusted Partner for Custom Sheet Metal Fabrication Services

Sourcing reliable and highly precise custom sheet metal fabrication services is a critical step for global B2B manufacturers. Since 2011, Dongji Intelligent Equipment has revolutionized the OEM/ODM landscape by integrating advanced processing into a single 30,000㎡ Industry 4.0 facility. With over 300 employees and a technical workforce exceeding 25%, our engineering team ensures that every project transitions flawlessly from initial CAD design to full-scale mass production.

Our comprehensive custom sheet metal fabrication services eliminate the need for third-party outsourcing. We deploy 30,000W fiber laser cutting machines, automated CNC bending presses, and 24/7 robotic welding systems to achieve an uncompromising ±0.1mm machining accuracy. Coupled with our in-house ISO9001-certified quality control lab, complete with salt spray and tensile testing, we guarantee that all hardware meets rigorous CE, UL, and FCC international standards.

Minimize your supply chain risk and accelerate your time-to-market with our 14-day rapid prototyping. Discover our automated process or contact our engineering experts today for a 24-hour factory-direct quote. For additional insights on global manufacturing benchmarks and tolerances, explore the guidelines provided by the International Organization for Standardization (ISO).