Dayuan Industrial Co., Ltd. Quality Control

ISO 9001 Quality Management System Certification

Dayuan Intelligent Manufacturing has always regarded product quality as the cornerstone of its survival and development. Since obtaining ISO 9001 Quality Management System certification, Dayuan has continuously maintained valid certification for consecutive years and established a quality management system covering the entire process — from design and R&D, manufacturing, inspection and testing, installation and commissioning, to after-sales service.

Every Dayuan machine undergoes rigorous quality control from raw material receipt to final shipment:

• Design Phase: Design review, technical verification, and prototype testing to ensure design reliability.
• Procurement Phase: Supplier qualification audits and incoming inspection of critical components to control quality at the source.
• Production Phase: Three-tier inspection — self-inspection, mutual inspection, and dedicated inspection — ensuring quality at every stage.
• Final Inspection Phase: No-load trial operation, load production testing, and precision measurement — only qualified machines are shipped.
• After-Sales Phase: Installation and commissioning, operator training, and regular follow-up visits — full-lifecycle service support.

ISO 9001 certification is not an endpoint, but Dayuan's commitment to quality for every customer. With 28 years of dedication to paper packaging equipment, Dayuan leverages systematic quality management to ensure the stability and reliability of every machine, safeguarding our customers' sustained profitability.