Quality Assurance

Inspect Like the Line Has to Run Tomorrow Morning.

Quality at Yaoshg is a chain of documented decisions—from approved suppliers and in-process checkpoints to factory run-off and crating—not a sticker applied at the end of assembly.

Quality Philosophy

Defects on Our Floor Become Waste on Yours

A missed check on a print cylinder or seal bar shows up as customer scrap.

Quality is embedded in sourcing, machining, assembly, wiring, and testing across pre-press, printing, post-press, and bag making. Mechanical tolerances, electrical validation before energization, and sealing bar flatness follow written criteria tied to each serial number.

The goal is equipment that matches the specification sheet from order review—not a certificate on the wall alone. How machines are built is on Manufacturing; after-delivery support is on Global Service.

  • ISO 9001-based quality management system
  • Serial-number traceability through assembly and test
  • CE-oriented configuration support where applicable
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Inspection Points on the Campus

From incoming material to final run-off.

Incoming component sampling and measurement
In-process assembly checkpoint
Electrical panel functional test
Run-off trial on flexo test bay

Quality Pillars

Standards Applied Across Every Platform

Same discipline for stack flexo and bag making lines alike.

Dimensional Accuracy

CNC and assembly tolerances on cylinders, rollers, and sealing components.

Electrical Safety & Function

Panel standards, emergency stop verification, and drive checks before energization.

Mechanical Reliability

Bearing selection, lubrication schedules, and balance on high-speed assemblies.

Documentation Traceability

Serial-linked inspection records and test reports shipped with each machine.

Line Integration Review

Web path and tension handoff when multiple machines form one workflow.

Continuous Improvement

Field feedback feeds back into design and inspection criteria.

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Five Quality Gates

From Design Release to Shipment

Same gate sequence across platforms—criteria vary by machine type.

  • Design review & BOM release · tolerances, approved suppliers, inspection criteria
  • Incoming inspection · raw materials and purchased components sampled before assembly
  • In-process checkpoint testing · stage sign-off during mechanical, electrical, and finishing work
  • Factory run-off & performance test · register, sealing, slitting, or laminating vs order requirements
  • Final audit & export preparation · documentation, safety labeling, and crating verified

Quality FAQ

What Converters Ask About Certification and Testing

Documentation available on request where applicable.

Yes—built on ISO 9001 requirements covering design release, supplier control, production, and service feedback. Certification documentation available on request.

“Each machine ships with inspection records, electrical drawings, and factory test results linked to its serial number—supporting vendor qualification and giving our service team a baseline after startup.”

Quality Management · Yaoshg Intelligent Equipment Documentation available on request for customer audits