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Quality Certification
Quality Control & Technical Support

At PDKJ, quality control is integrated into every stage of welding equipment manufacturing, from engineering design and component inspection to assembly, testing, and final delivery. We follow established quality management procedures and applicable national and industry standards to provide reliable welding machines and automation solutions for industrial customers.

Professional Quality Control System

Our quality control team works closely with engineering, production, purchasing, and technical departments to ensure that equipment meets defined quality requirements and project specifications.

1. Quality Standards & Procedures

We follow established quality control procedures and applicable national and industry regulations throughout the manufacturing process. Quality requirements are defined before production and monitored throughout each project.

2. Project Quality Planning

For customized welding equipment and automation projects, we develop quality plans based on project requirements, technical specifications, inspection procedures, and production conditions.

3. Engineering & Technical Review

Our technical team participates in blueprint reviews, design clarification, project planning, and technical specification reviews to identify potential issues before manufacturing begins.

4. Equipment & Component Inspection

Key equipment, materials, components, and finished products are inspected according to established quality requirements. Important components and complete equipment are subject to inspection and approval before entering the next production stage.

5. Production Process Inspection

Quality inspections are carried out throughout the manufacturing process. Our QC team monitors critical production stages to ensure that welding equipment is assembled and manufactured according to approved technical requirements.

6. Welding Performance Testing

Before delivery, welding machines and automated welding systems undergo functional and performance testing where applicable. Welding parameters, equipment operation, and welding results are checked according to project requirements.

7. Installation Quality Control

For equipment installation and commissioning projects, our technical team monitors installation procedures and checks for common installation issues to ensure proper equipment operation and system integration.

8. On-Site Testing & Quality Inspection

For customized or automated welding projects, PDKJ can organize and participate in on-site testing, equipment commissioning, and quality inspections to verify system performance before final acceptance.

9. Final Inspection & Documentation

Before shipment, completed equipment is inspected and relevant project documentation and quality records are reviewed. This helps ensure that the delivered welding equipment meets the agreed technical and quality requirements.

Technical Support

Quality does not end when the machine leaves our factory. PDKJ provides technical support throughout equipment installation, commissioning, operation, and application.

Our technical support can include:

  • Equipment installation guidance
  • Machine commissioning
  • Welding parameter support
  • Welding process consultation
  • Equipment operation guidance
  • Troubleshooting assistance
  • Automation integration support
  • Application-specific welding testing
Quality You Can Rely On

From individual components to complete robotic welding systems, PDKJ focuses on process control, inspection, testing, and continuous improvement.

With professional engineering and QC teams, we aim to provide stable welding performance, consistent equipment quality, reliable operation, and responsive technical support for customers in sheet metal fabrication, automotive, electrical cabinets, energy storage, industrial equipment, and other manufacturing industries.

Looking for a reliable welding equipment manufacturer? Contact PDKJ to discuss your welding requirements and technical solution.


Guangdong Pudian Automation Technology Co., Ltd quality control 0

Company Certificates
Authoritative Certification, Quality Assurance
GB Talent
GB Talent
Certificate No. ZL 2015 2 0651748.8
Issue Date 2016-01-20
Expiry Date 2036-01-20
Issued By National Talent Center
Scope Medium Frequency Spot Projection Welding Machine
Business licence
Business licence
Certificate No. 0792443
Issue Date 2008-05-12
Expiry Date 2078-05-11
Issued By China Government
Scope PDKJ Production
Registration Form for Foreign Trade Operators
Registration Form for Foreign Trade Operators
Certificate No. 03641033
Issue Date 2008-05-12
Expiry Date 2078-05-12
Issued By 对外贸易经营者备案登记
Scope PDKJ Export
ISO 9001
ISO 9001
Certificate No. 04923Q01269R0S
Issue Date 2023-08-15
Expiry Date 2026-08-14
CE Certification - Hand-held fiber laser welding machine with automatic wire feeding LWM1500/2000/3000
CE Certification - Hand-held fiber laser welding machine with automatic wire feeding LWM1500/2000/3000
Certificate No. No.: PD/0659/2025
Issue Date 2025-03-13
Expiry Date 2030-03-12
CE Certificate - Hand-held fiber laser welding machine with automatic wire feeding LWM1200/1500/2000F
CE Certificate - Hand-held fiber laser welding machine with automatic wire feeding LWM1200/1500/2000F
Certificate No. No.:DPCW/01199/30/KF/26
Issue Date 2026-06-30
CE Certification – Automatic laser welding machine LWM1500/2000/3000
CE Certification – Automatic laser welding machine LWM1500/2000/3000
Certificate No. No.:DPCW/00761/10/KF/25
Issue Date 2025-06-10
Expiry Date 2030-06-09
CE Certification – Platform Type Laser Welding Machine LWM1500/2000/3000
CE Certification – Platform Type Laser Welding Machine LWM1500/2000/3000
Certificate No. No.:DPCW/00775/18/KF/25
Issue Date 2025-06-18
Expiry Date 2030-06-17
CE Certification – Desktop IF Inverter Precision Spot Welder DB-80T
CE Certification – Desktop IF Inverter Precision Spot Welder DB-80T
Certificate No. No.:PD/0750/2025
Issue Date 2025-05-27
Expiry Date 2030-05-26
PDKJ Trademark Graphic Certificate
PDKJ Trademark Graphic Certificate
Issue Date 2016-10-28
Expiry Date 2026-10-27
Issued By 中华人民共和国国家工商行政管理总局商标局
Seam Welding Machine – Utility Model Patent Certificate
Seam Welding Machine – Utility Model Patent Certificate
Certificate No. ZL 2020 2 1830364.X
Issue Date 2021-08-17
Issued By 国家知识产权局
Mains-Frequency Stationary Spot Welding Machine – Patent Certificate
Mains-Frequency Stationary Spot Welding Machine – Patent Certificate
Certificate No. ZL 2023 2 1056222.6
Issue Date 2023-11-24
Issued By 国家知识产权局
Extended and Height-Increased Welding Machine – Patent Certificate
Extended and Height-Increased Welding Machine – Patent Certificate
Certificate No. ZL 2020 2 1829601.0
Issue Date 2021-08-17
Issued By 国家知识产权局
AC Projection Welding Machine – Patent Certificate
AC Projection Welding Machine – Patent Certificate
Certificate No. ZL 2020 2 1829604.4
Issue Date 2021-06-29
Issued By 国家知识产权局
Nut Welding Machine – Patent Certificate
Nut Welding Machine – Patent Certificate
Certificate No. ZL 2020 2 2050981.4
Issue Date 2021-06-29
Issued By 国家知识产权局
Benchtop Precision AC Spot Welder – Patent Certificate
Benchtop Precision AC Spot Welder – Patent Certificate
Certificate No. ZL 2020 2 1830548.6
Issue Date 2021-06-25
Issued By 国家知识产权局
Variable-Frequency Inverter AC/DC Spot and Projection Welding Machine – Patent Certificate
Variable-Frequency Inverter AC/DC Spot and Projection Welding Machine – Patent Certificate
Certificate No. ZL 2015 2 0655313.0
Issue Date 2016-01-20
Issued By 中华人民共和国国家知识产权局
Energy-Storage Stationary Spot Welding Machine – Patent Certificate
Energy-Storage Stationary Spot Welding Machine – Patent Certificate
Certificate No. ZL 2023 2 3274425.5
Issue Date 2024-07-12
Issued By 国家知识产权局
Projection Welding Machine with Positioning Fixture – Patent Certificate
Projection Welding Machine with Positioning Fixture – Patent Certificate
Certificate No. ZL 2023 2 3274791.0
Issue Date 2024-07-19
Issued By 国家知识产权局
Multi-axis Galvo-scanner Platform Laser Welding Machine – Patent Certificate
Multi-axis Galvo-scanner Platform Laser Welding Machine – Patent Certificate
Certificate No. ZL 2023 2 1056241.9
Issue Date 2023-11-24
Issued By 国家知识产权局
Workpiece Positioning Mandrel – Patent Certificate
Workpiece Positioning Mandrel – Patent Certificate
Certificate No. ZL 2022 2 3201251.5
Issue Date 2023-05-23
Issued By 国家知识产权局
Power-Frequency Stationary Spot Welding Machine – Patent Certificate
Power-Frequency Stationary Spot Welding Machine – Patent Certificate
Certificate No. ZL 2023 2 1056222.6
Issue Date 2023-11-24
Issued By 国家知识产权局
A Fixture and Four-Point Welding Machine for Automotive Shock Absorber Connecting Rod Positioning Rings – Patent Certificate
A Fixture and Four-Point Welding Machine for Automotive Shock Absorber Connecting Rod Positioning Rings – Patent Certificate
Certificate No. ZL 2022 2 2999812.4
Issue Date 2023-04-14
Issued By 国家知识产权局
Welding Gun Electrode Cooling Device and Welding Machine – Patent Certificate
Welding Gun Electrode Cooling Device and Welding Machine – Patent Certificate
Certificate No. ZL 2022 2 3262356.1
Issue Date 2023-05-23
Issued By 国家知识产权局
Platform-type Medium-frequency Inverter Spot Welder (Mark-free) – Patent Certificate
Platform-type Medium-frequency Inverter Spot Welder (Mark-free) – Patent Certificate
Certificate No. ZL 2015 2 0651750.5
Issue Date 2016-01-20
Issued By 中华人民共和国国家知识产权局
Welding Line for Automotive Airbag Housings – Patent Certificate
Welding Line for Automotive Airbag Housings – Patent Certificate
Certificate No. ZL 2023 2 3247274.4
Issue Date 2024-07-12
Issued By 国家知识产权局
Dual-Head Projection Welding Machine – Patent Certificate
Dual-Head Projection Welding Machine – Patent Certificate
Certificate No. ZL 2017 2 0143955.1
Issue Date 2017-08-18
Issued By 中华人民共和国国家知识产权局
A Desktop DC Precision Spot Welding Machine - Patent Certificate
A Desktop DC Precision Spot Welding Machine - Patent Certificate
Certificate No. ZL 2015 2 0657168.X
Issue Date 2016-01-20
Issued By 中华人民共和国国家知识产权局
A Multi-Station Robotic Welding Mechanism for Box Welding - Patent Certificate
A Multi-Station Robotic Welding Mechanism for Box Welding - Patent Certificate
Certificate No. ZL 2023 2 1056183.X
Issue Date 2023-11-24
Issued By 国家知识产权局
A Circumferential Spot Welding Machine - Patent Certificate
A Circumferential Spot Welding Machine - Patent Certificate
Certificate No. ZL 2017 2 0144125.0
Issue Date 2017-08-01
Issued By 中华人民共和国国家知识产权局
A Medium Frequency Inverter DC Spot and Projection Welding Machine - Patent Certificate
A Medium Frequency Inverter DC Spot and Projection Welding Machine - Patent Certificate
Certificate No. ZL 2015 2 0651748.8
Issue Date 2016-01-20
Issued By 中华人民共和国国家知识产权局
An Automatic Feeding Spot Welding Machine - Patent Certificate
An Automatic Feeding Spot Welding Machine - Patent Certificate
Certificate No. ZL 2023 2 3248354.1
Issue Date 2024-07-19
Issued By 国家知识产权局
Medium Frequency Resistance Welding Machine - Patent Certificate
Medium Frequency Resistance Welding Machine - Patent Certificate
Certificate No. ZL 2020 2 2050944.3
Issue Date 2021-06-29
Issued By 国家知识产权局
Medium Frequency Inverter Box Welding Machine - Patent Certificate
Medium Frequency Inverter Box Welding Machine - Patent Certificate
Certificate No. ZL 2020 2 1870070.X
Issue Date 2021-06-29
Issued By 国家知识产权局
A Single-Sided Double-Point Double-Station Welding Machine - Invention Certificate
A Single-Sided Double-Point Double-Station Welding Machine - Invention Certificate
Certificate No. ZL 2023 1 0499551.6
Issue Date 2026-04-24
Issued By 国家知识产权局
An Aluminum Strip Butt Seam Welding Machine - Invention Certificate
An Aluminum Strip Butt Seam Welding Machine - Invention Certificate
Certificate No. ZL 2023 1 0499644.9
Issue Date 2025-12-23
Issued By 国家知识产权局
A Double-Sided Welding Machine for Automobile Shock Absorber Steering Bracket - Invention Certificate
A Double-Sided Welding Machine for Automobile Shock Absorber Steering Bracket - Invention Certificate
Certificate No. ZL 2022 1 1530643.8
Issue Date 2025-12-26
Issued By 国家知识产权局
CQC Certification - Resistance Welding Machine - Product Certification Certificate
CQC Certification - Resistance Welding Machine - Product Certification Certificate
Certificate No. CQC2013010611609253
Issue Date 2020-03-02
Issued By 中国质量认证中心
Scope 电阻焊机 DN-25(1~380V,25kVA,X=20%)、DN-35(1~380V,35kVA,X=20%)、DN-50(1~380V,50kVA,X=20%)、DTN-35(1~380V,35kVA,X=20%)、 DTN-50(1~380V,50kVA,X=20%)、DTN-75(1~380V,75kVA,X=20%)、DTN-100(1~380V,100kVA,X=20%)、DTN-150(1~380V,150kVA,X=20%)
CQC Certification - Resistance Welding Machine - Product Certification Certificate
CQC Certification - Resistance Welding Machine - Product Certification Certificate
Certificate No. CQC2017010611986884
Issue Date 2020-03-02
Issued By 中国质量认证中心
Scope 电阻焊机 DTB-160(3~380V,160kVA,X=20%) 、DTB-80(3~380V,80kVA,X=20%)
CQC Certification – Platform-type Medium-frequency Inverter Spot Welder (Mark-free) – Product Certification Certificate
CQC Certification – Platform-type Medium-frequency Inverter Spot Welder (Mark-free) – Product Certification Certificate
Certificate No. CQC2019010611188329
Issue Date 2020-03-02
Issued By 中国质量认证中心
Scope 平台式中频逆变无痕点焊机DB-130W (3~380V,130KVA,X=20%)
Medium-Frequency Control System for Resistance Welding Machines – Computer Software Copyright Registration Certificate
Medium-Frequency Control System for Resistance Welding Machines – Computer Software Copyright Registration Certificate
Certificate No. 2018SR571455
Issue Date 2017-05-08
Issued By 中华人民共和国国家版权局
Scope All Rights Reserved
Automatic Control System for Resistance Welding Machines V1.0 – Computer Software Copyright Registration Certificate
Automatic Control System for Resistance Welding Machines V1.0 – Computer Software Copyright Registration Certificate
Certificate No. 2018SR571460
Issue Date 2017-06-12
Issued By 中华人民共和国国家版权局
Scope All Rights Reserved