Hello, welcome to Nanjing Anjie Door Industry Co., Ltd. Service: +86 18913976220

Manufacturing Process

Design & Engineering

Custom specification review, CAD design and material planning

Raw Material Prep

Steel cutting, roll forming, punching via automated CNC lines

Component Assembly

Precision welding, panel assembly, hardware fitting

Surface Treatment

Shot blasting, powder coating, galvanising and colour matching

QC & Dispatch

Full inspection, testing and secure sea/air freight packaging

Key Equipment & Technology

CNC Roll Forming

12 fully automated roll-forming lines producing door panels up to 6 meters wide with +/-0.2mm tolerance.

+/-0.2mm Precision

Robotic Welding

6-axis robotic welding stations ensuring consistent weld quality on all steel structural components.

6-Axis Robots

Powder Coating

Automated electrostatic powder coating system with pre-treatment line. 200+ RAL colors available.

200+ RAL Colors

PU Foam Injection

High-pressure PU foam injection system for insulated panels. Thermal conductivity <= 0.022 W/mK.

Lambda <= 0.022 W/mK

Testing Lab

In-house lab for wind load, thermal insulation, acoustic performance and cycle testing on all door models.

In-house Testing

Export Packaging

Dedicated packaging line with custom crating for sea and air freight. Fumigation certificates available.

Sea/Air Ready

Our QC Process

Material Check

Every batch of raw steel, aluminium and hardware components is inspected and lab-tested before entering the production line. Only certified materials are approved.

Process Inspection

Dedicated QC inspectors check key dimensions at each production stage - cutting, forming, welding, coating. Non-conforming items are quarantined and reworked.

Performance Testing

Finished doors undergo functional cycle testing, wind load testing, and water tightness testing before any shipment is approved.

Documentation

Quality records accompany each order - material certificates, test reports, dimensional inspection sheets, and CE/ISO declaration documents.

Third-Party Inspection

Third-party inspections by SGS, BV or customer-nominated agencies are welcome. We facilitate all pre-shipment inspections.

Warranty Guarantee

All products carry a 2-year warranty on manufacturing defects. Our technical team provides remote guidance and spare parts supply worldwide.

Production Capabilities

20,000m2
Factory Floor Area
500+
Production Staff
5,000+
Units per Month
15days
Average Lead Time

Visit Our Factory

We welcome factory visits and third-party inspections from overseas clients

Arrange a Visit