Strength

Strength

R&D System

Warranty System

Enterprise Qualifications

Production Capacity

Warranty System

　　Since 2005, Hunan Changzhong Company has successively passed the ISO9001, ISO14001, and OHSAS18001 three-system certifications. The company has always adhered to the quality policy of "Quality First, Customer Supreme, Technological Innovation, Honesty and Compliance" in establishing, implementing, and maintaining the quality management system, continuously improving and enhancing the operation of the quality management system in accordance with the requirements of the management system standards.

 

1. Organization and Personnel Setup

　　An independent quality management organization is established, equipped with professional quality engineers, inspection engineers, and inspectors. Quality control points are set at various stages such as product receipt, production, and installation. The "self-inspection, mutual inspection, special inspection" system is implemented to conduct inspections throughout all processes, preventing non-conforming products from entering the next process, and comprehensive quality management is practiced within the company.

 

2. Operation Management of the System

　　In accordance with the requirements of the management system standards and combined with the company's business management model, the company compiles the "Quality Manual" and "Procedure Documents" to control procedures covering all aspects including design, marketing, procurement, production, and quality. The company organizes annual management reviews to evaluate the conformity, suitability, and effectiveness of the quality, environmental, and occupational health and safety management systems based on the system operation status and market competition environment, maintaining continuous improvement of the management system.

 

 

 

 

 

3. Supplier Management

　　The company has established a dedicated qualified supplier evaluation leadership team responsible for the qualification evaluation of suppliers of raw and auxiliary materials, supporting parts, and outsourced parts, as well as the annual review of qualified suppliers.

 

 

4. Adopted Standards

　　Referring to advanced domestic and international standards, the company formulates enterprise standards and internal control standards, striving to reach the quality level of similar international products.

 

JB/T4149 Slewing Arm Bucket Wheel Stacker-Reclaimer Technical Conditions JB/T 5000 General Technical Conditions for Heavy Machinery
JB/T8849 Mobile Bulk Continuous Handling Equipment Steel Structure Design Code DL/T 868 Welding Procedure Qualification Specification
GB50270 Installation Engineering Construction and Acceptance Specification for Continuous Conveying Equipment GB/T 6402 Ultrasonic Testing Method for Steel Forgings
GB50231 General Specification for Construction and Acceptance of Mechanical Equipment Installation Engineering GB/T 12469 Welding Quality Assurance Requirements and Defect Classification for Steel Fusion Welds
JB/T10380 Round Tube Belt Conveyor DIN 18800 Steel Structure Design Code
GB/T10595 Belt Conveyor (Belt Conveyor Technical Conditions) DIN 22101 Continuous Handling Equipment Calculation and Design Basis for Belt Conveyors Conveying Bulk Materials
JB/T3927 Mobile Belt Conveyor ISO 1819 General Safety Rules for Continuous Handling Equipment
JB/T6132 Enclosed Scraper Conveyor Safety Rules ISO 4310 Test Methods and Specifications for Lifting Machinery
GB/T 700 Carbon Structural Steel ISO 7149 General Safety Rules for Continuous Handling Equipment Special Rules
GB/T 1591 Low Alloy Structural Steel ISO 5049 Mobile Bulk Continuous Handling Equipment

 

5. Testing Equipment

　　To standardize the management of testing equipment, the company has established a dedicated metrology inspection station to ensure all testing equipment is controlled and all measurement data trace back to national standards. Currently, the company owns more than 600 testing devices (sets), sufficient to meet the needs of raw material inspection, production process control, quality inspection, and other aspects.