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Dongji is a premier sheet metal factory China operating a 30,000㎡ smart manufacturing facility aerial overview in Jiangmen
Industry 4.0 Manufacturing Facility

30,000㎡
Smart Factory.
Zero Compromise.

Dongji is a trusted sheet metal factory China — a fully integrated 30,000㎡ Industry 4.0 facility in Jiangmen, Guangdong, housing laser cutting, CNC bending, robotic welding, powder coating, electronic assembly, and in-house QC all under one roof. No subcontracting. No quality gaps.

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30K㎡
Factory Floor
300+
Employees
25%+
Tech Specialists
15+
Years Est.

Production Capacity of our sheet metal factory China

Sheet Metal Factory China —
Every Process.
Full Control.

As a leading sheet metal factory China, every step from raw material to finished, tested, certified product happens under one roof — with real-time visibility through ERP and MES systems. No subcontracting, no quality gaps between suppliers.

3
Fiber Laser Cutting Machines
3,000W – 30,000W power range
12
CNC Bending Machines
100T press force · 3.2M max length
5
Welding Robots
24/7 non-stop operation
8
High-Performance Stamping Presses
Complex geometries, high automation
2
CNC Punching Machines
20T · 10M/min punch speed
3
Testing Lines + 2 Electronic
Assembly Lines — full integration
1
Powder Coating Line
5+ year corrosion warranty
3
Automatic Grinders
Surface finishing in-line
Production Capability Index
Laser Cutting Speed30 M/MIN
Machining Accuracy±0.1 MM
Material Thickness Range0.2 – 30 MM
Robotic Welding Uptime24/7
Technical Specialists Ratio25%+
Prototype Lead Time14–21 DAYS
Export Country Coverage50+ COUNTRIES
Powder Coat Warranty5+ YEARS
Dongji sheet metal factory China complete product manufacturing process flow — 12 stages from drawing design to loading and export
End-to-End Manufacturing Process — Raw Material to Certified Finished Product ERP + MES Tracked · Every Stage · Real-Time Visibility
Core Equipment Line

Production-Grade
Machinery at Scale

Every machine on our floor is production-grade, not prototype-grade. Our laser cutters run at 3,000W–30,000W. Our press brakes handle 3.2M workpieces. Our robots weld continuously, every hour of every day.

Dongji sheet metal factory China fiber laser cutting machine 3000W to 30000W precision cutting at 30 meters per minute
3× Machines Fiber Laser Cutting
Power Range3,000–30,000W
Cutting Speed30M/min
Accuracy±0.1mm
MaterialsSteel · SS · Alum · GI
Dongji sheet metal factory China CNC bending machine press brake 12 units handling 3.2 meter workpieces at 100 ton press force
12× Machines CNC Bending Press
Press Force100T
Max Length3.2M
Angle Tolerance±0.5°
BackgaugeAutomated Precision
Dongji sheet metal factory China robotic welding arm 5 industrial robots automated 24 hour non-stop production
5× Robots · 24/7 Robotic Welding
Robot Count5units
Operation24/7continuous
Weld TypesMIG · TIG · Spot
QualityZero Human Variation
Dongji sheet metal factory China powder coating and surface treatment production line with 5 year corrosion warranty
In-Line Finishing Powder Coating
Warranty5+years
Color MatchingFull RAL Range
FinishesMatte / Gloss / Texture
StandardEnvironmental Grade
Smart Factory Management

ERP + MES:
Full Visibility
Every Order

As a certified sheet metal factory China, Dongji's ERP and MES systems connect every production station in real time — from material arrival to finished goods dispatch. B2B customers get order tracking transparency that most factories cannot offer.

Dongji Intelligent Equipment smart factory workshop panoramic view showing multiple simultaneous production lines CNC machines and assembly stations
Industry 4.0 Facility 30,000㎡ of
Integrated Production
Real-Time Tracking ERP + MES · Every Station
ERP System

Connects procurement, production scheduling, inventory, and shipping in one system. Every order visible from placement to dispatch.

Real-TimeOrder Visibility
MES Tracking

Tracks each production step — laser cutting, bending, welding, finishing, QC — with timestamps and operator logs per batch.

100%Process Traceability
On-Time Delivery

Production scheduling managed against committed delivery dates. Automated alerts flag delays before they happen. Prototype in 14–21 days, guaranteed.

14–21dPrototype Lead Time
Quality Gates

Integrated QC checkpoints at each production stage. In-house test lab runs tensile, salt spray, hardness, thickness, and colorimetry before any shipment is released.

ISO9001Quality Standard
In-House Quality Control

Tested Before
It Leaves the Floor

No third-party QC delays. Our in-house lab runs 6 categories of physical and chemical testing before any batch is released — covering materials, dimensions, surface, corrosion, and electrical safety.

Dongji sheet metal factory China in-house quality control inspection laboratory with tensile tester salt spray machine and auto inspection system
In-House QC Laboratory 6 Test Categories · Zero Outsourcing
All Certifications Covered
ISO 9001 CE UL FCC ETL SGS RoHS KC
QC Equipment & Tests
01
Tensile TesterMaterial strength and yield point verification per material grade and batch.Per-batch material certification
02
Salt Spray Test MachineAccelerated corrosion testing validates powder coat and surface treatment durability.500+ hour test cycles · 5yr warranty basis
03
Hardness TesterRockwell and Vickers hardness testing confirms alloy grade and heat treatment compliance.Rockwell · Vickers scales
04
Auto Sheet Metal InspectionVision-based dimensional inspection at production line speed — 100% coverage, no sampling.100% dimensional coverage
05
Thickness GaugeUltrasonic and contact thickness measurement for coating and base material verification.±0.01mm measurement resolution
06
Colorimeter + Torque TesterRAL color consistency verification and fastener/joint torque validation before shipment.Full finish and mechanical verification
People & Delivery

300+ People.
25% Engineers.
One Commitment.

Behind the machines are 300+ employees — over 25% holding engineering or technical qualifications. From the engineers who review your CAD files to the QC specialists who sign off before shipment, Dongji's team is the factory's real competitive advantage.

Dongji sheet metal factory China engineering team of technical specialists in factory uniforms showing qualified professional manufacturing workforce
25%+
Technical Specialists

Engineers, QC specialists, and R&D staff — more than 1 in 4 of Dongji's 300+ workforce holds a technical qualification.

Dongji sheet metal factory China finished products warehouse with packaged goods ready for global export shipping to 50 plus countries
50+
Export Countries

From Jiangmen to Australia, Germany, USA, Italy, and Southeast Asia — fully documented, certified, and export-ready from our dispatch center.

Dongji sheet metal factory China CE and international certificate collection ISO9001 CE UL FCC ETL SGS RoHS KC certifications
Certified for Every Market 8 International
Certifications
ISO9001CE ULFCC ETLSGS RoHSKC
In-House Pre-Screening No Third-Party Lab Delays
Dongji sheet metal factory China cooperative brand partners including BYD Gastrox Tesla TEKA and 34 other international manufacturing brands
Trusted by Global Brands BYD · Gastrox · 34+ Partners
50+ Countries Served Factory-Direct Export
to Every Major Market
Industry Intelligence

Why Factory Scale
Matters for Your Supply Chain

In global manufacturing, factory capability is the floor — not the ceiling. These numbers show why Dongji's scale and automation level make it a structurally stronger OEM partner than a typical small-batch shop.

88%

Rise in metal & machinery industrial robots globally 2020→2023. Robotics-capable factories now command the OEM market — Dongji runs 5 welding robots 24/7.

IFR World Robotics 2024

89%

Of Chinese manufacturers use industrial robotics — the highest rate globally. Dongji's Guangdong facility sits at the center of the world's most automated production ecosystem.

IFR World Robotics 2024

80%

Of global enterprises have deployed AI/ML in industrial automation. Dongji's ERP + MES system is already Industry 4.0 compliant — real-time tracking for every order.

Bain & UiPath 2024

#1

China's global position in aluminum smelting (45M metric tons) and zinc production. Dongji's Guangdong location means lowest raw material cost and most reliable supply for OEM buyers.

USGS · UN Comtrade 2024

Tour the Factory. Start Your Project.

30,000㎡ Ready
for Your Production

Our sheet metal factory China handles everything from CAD review to certified global shipment. Request a factory audit, schedule a virtual tour, or submit your files for a 24-hour DFM assessment. Our engineering team responds the same business day.

30,000㎡ Integrated Facility 300+ Staff · 25%+ Engineers ERP + MES Real-Time Tracking 14–21 Day Prototype ISO9001 · CE · UL · FCC Certified Export to 50+ Countries
Request Factory Audit → WhatsApp Engineering Team →

hello@sheet-metal-factory.com  ·  0750-7173188  ·  Wuhe Farm Industrial Area, Daze Town, Xinhui, Jiangmen, Guangdong

Your Proven Sheet Metal Factory China Partner

Sourcing reliable manufacturing overseas can be challenging, but partnering with a top-tier sheet metal factory China eliminates the guesswork. Since 2011, Dongji Intelligent Equipment has established itself as an industry leader, operating a massive 30,000㎡ Industry 4.0 integrated facility. Supported by over 300 dedicated employees, including a technical workforce that exceeds 25% of our staff, we deliver uncompromising quality. Our in-house QC inspection lab ensures every component meets a strict 0.1mm machining precision standard.

As a certified high-tech enterprise and an intellectual property demonstration facility holding over 100 patents, we represent the pinnacle of a modern sheet metal factory China. We deploy state-of-the-art 30,000W laser cutting machines, 12 CNC bending machines, and 5 automated welding robots operating 24/7. This robust infrastructure allows us to manage your entire product lifecycle—from an initial 14-day rapid prototype to global mass production across 50+ countries. Every product is backed by ISO9001, CE, FCC, and UL certifications.

Accelerate your supply chain today. Explore our custom manufacturing services or contact our engineering team directly for a DFM review and a 24-hour quote. For more information on global fabrication quality benchmarks, refer to the Fabricators & Manufacturers Association (FMA).