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OK4000

OK4000 Offline Label Quality Inspection System

The OK4000 is an offline quality inspection system for label inspection machines, label printing machines, and roll-label rewinding workflows.

It is designed for label applications where missing labels, waste labels, transparent labels, registration shifts, and barcode or QR-code issues must be detected reliably.

Key Features

  • 100% full-width observation covering startup settings and the entire production process.
  • High-definition image quality based on high-resolution cameras.
  • Real-time image synchronization, stable during acceleration and deceleration of transparent materials.
  • LED light source for softer and more uniform surface-defect detection than strobe lighting.
  • Quick task setup, stable operation and compatibility with inspection machines for precise stop and rewind functions.
  • Ordinary light and contour light sources for missing-label, waste-label and transparent-label inspection scenes.
  • Can support variable barcode and QR-code inspection when configured for the project.

Typical Applications

  • Label inspection machines and offline label quality inspection workflows.
  • Label printing machines.
  • Transparent-label inspection where contrast against backing paper is low.
  • Roll-label rewinding, quality checking and waste rejection workflows.

Product Specifications

Item Information
Nominal transverse resolution 0.15 mm.
Nominal longitudinal resolution 0.15 mm.
Designed inspection width 10 mm-600 mm.
Designed maximum speed 450 m/min.
Dot defect detection accuracy Defect area > 0.2 mm².
Knife-line detection accuracy Defect area > 0.1 mm × 5 mm.
Registration detection accuracy Lateral > 0.15 mm; longitudinal > 0.25 mm.
System configuration OK4000 line-scan camera, 64-bit octa-core industrial control computer, high-definition distortion-free lens, integrated light source and imported high-speed dual-channel acquisition card.

Selection Questions for Inquiry

  • What label material and backing paper color are used?
  • What are the detection width and line speed?
  • Which defects are unacceptable: missing label, blank label, waste label, color difference, registration shift or barcode issues?
  • Is transparent-label inspection required?
  • Is a waste rejection or automatic stop workflow required?

Tell Us About Your Application

Every production line is different. To recommend a suitable system, we need to understand your material, web width, line speed, machine layout, quality-control target and required functions.

Send us your project details, machine photos or sample defects. Our team will review your application and help you choose a practical solution for print inspection, web guiding, tension control or in-line measurement.

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Order Process

1️⃣ Share Your Application
Tell us your material type, web width, line speed, machine layout and quality-control requirements.

2️⃣ Review the Solution
We review the application and recommend a suitable direction for print inspection, web guiding, tension control or in-line measurement.

3️⃣ Confirm Configuration
We confirm the model, functions, installation conditions, technical details and quotation before the project moves forward.

4️⃣ Delivery & Follow-Up
We coordinate delivery, technical communication and after-sales follow-up for your project.

Clear. Practical. Reliable.

Frequently Asked Questions

We are a professional manufacturer and we could supply customized mill for ERW pipes and full-range OCTG pipes to meet your request,which include Entry Section,Forming&Sizing,Solid State HF Welder,Straightening Machine,Cold Flying Saw,End Facing Machine,Hydro-tester,UT Flaw Detection Machine,Threading Machine,Bucking Machine and Pipes Packing Machine.
MOQ is flexible for us and one set is feasible.Of course our team also could supply you a complete solution according to your request.
All kinds of our equipment are designed for producing pipes meeting API 5CT, API 5L, ASTM, EN, ISO and GB standards, suitable for oil & gas, pipeline, structural and industrial pipe applications.
Yes. We offer full turn key solutions including process design, equipment manufacturing, installation guidance, commissioning, operator training and after sales service.
Absolutely. Our heat treatment and forming systems are specially engineered for high strength steel grades required for deep well oil and gas OCTG pipes.
T/T, L/C at sight are available. Flexible payment terms can be discussed for large scale turn key projects.
We provide 12 month warranty for core components from the date of shipment, with lifelong technical consultation and spare part supply service.

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