FACTORY CAPABILITY

Our Pen Factory in China: Full-Chain Control from R&D to QC

This page helps buyers confirm that YIREN is a real manufacturing company with workshop scenes, stable processes and quality control.

SMART INJECTION MOLDING LINE

Smart Injection Production Line for Consistent YIREN Quality

Nanchang YIREN has long focused on stationery manufacturing and has built a standardized fully automatic injection molding workshop. The workshop is equipped with high-precision injection molding machines and intelligent servo robotic arms, enabling automated pen barrel molding and automatic part removal. Supporting material drying and constant-temperature molding equipment helps standardize raw material processing. By reducing manual variation through automation, YIREN improves molding precision and appearance yield. The intelligent production line strengthens capacity, builds standardized production control, and balances scalable output with detailed quality control for reliable stationery product support.
Factory Entrance & Showroom
Entrance
Raw Materials & Components
Materials
Assembly Workshop
Workshop
Packing & Warehouse
Packing
Writing test scene
Writing Test
Production & Process Control
Process QC
Final Packing & Shipment Review
Shipment

01 / FACTORY CAPABILITY

Factory Capability

Clean and orderly factory scenes show YIREN's production capability from site to delivery workflow.

CAPACITY DATA

Capacity Data Should Follow Confirmed Factory Figures

Daily output, monthly capacity, equipment count and employee number should be confirmed by the factory team before launch.
--Daily CapacityPending
--Monthly CapacityPending
--Equipment CountPending
--WorkersPending

WORKSHOP SCENES

Workshop Display

The page should show overall workshop scenes and key processes including CNC, polishing, painting, plating, assembly and packing.
Pen assembly workshop overview
Assembly Workshop
CNC machining of metal pen parts
CNC & Materials
Pen packaging and storage
Packing & Warehouse
Polishing metal pen barrels
Polishing
Spray painting and pen surface finishing
Painting
Pen plating and color development
Plating
Pen assembly review and final inspection
Assembly Check

PRODUCTION FLOW

Production Flow

Pen manufacturing process: raw materials, machining, finishing, assembly, testing, packing, shipment

02 / QUALITY CONTROL

Quality Control

Quality control is shown through inspection scenes, standards, people, forms and prevention methods, not certificates only.
Incoming material inspection
Incoming Inspection
In-process inspection on the assembly line
Process Inspection
Pen writing test and sample approval
Writing Test
01

Incoming Inspection

Checks materials, components, colors, specifications and supplier batches.

02

Process Inspection

First article approval and sampling inspection during processing, finishing and assembly.

03

Writing Test

Checks ink flow, start-up, continuous writing and smoothness.

04

Appearance Inspection

Checks scratches, color difference, logo position, gaps and appearance.

05

Salt Spray Test

Verifies corrosion resistance for metal, plated and surface-finished parts.

06

Packaging Inspection

Checks gift boxes, inserts, labels, manuals, cartons and quantity.

07

Final Inspection

Final check of goods, packing, quantity, marks and shipment documents.

08

Test Reports

Download test reports, QC forms and project inspection records after upload.

RISK PREVENTION

How Common Problems Are Prevented

Bulk differs from sampleApproved sample, first article check and process sampling control batch variation.
Appearance defects and color differenceAppearance standards, color approval and pre-packing inspection reduce risks.
Unstable writing performanceRefill and nib matching, start-up tests and continuous writing tests are used.
Packing mistakesPacking list, label check and final inspection prevent packing mistakes.

FACTORY VISIT

Need a Factory Visit or Quality Standard Review?

Tell us the product, quantity, workshop focus and quality requirements so the right team can support you.
Book a Factory VisitInquiry