VIU™ Inspection Systems for Seatbelt Webbing

The standard Vision Inspection Unit for high speed automated quality inspection of seatbelt webbing.
comvis vision inspection systems for seat belt webbing

COMVIS VIU™ is the industrial standard as it comes to high speed automatic quality inspection of all kinds of seatbelt webbing, such as Worldweft, Ecotec, Rukaflex and standard webbing. It meets the high standards for automotive safety webbing and is used by large well known seatbelt webbing manufacturers all over the world. It is often used in the make up area and/or directly after the dye range.  VIU™ is single-end or multi-end and available in different versions; with a label applicator for physically labelling of defects or a group of defects and/or with a visual inspection table to stop defects in front of the operator and proceed after repairing the defects.

  • 100% automated inspection of seatbelt webbing running 24/7/365
  • Speeds up to 120 m/min
  • 25 years of proven experience
  • World wide remote service and support
  • High quality machinery and software produced in the Netherlands
  • Fully automatic with label applicator
  • Semi-automatic visual inspection table for repair or cut defects and run scrap
  • Optionally FD3™ filament detector integrated
  • Easy to use
  • Suitable for alle types of seatbelt webbing up to 55 mm

VIU™ with visual inspection table

VIU™ models with a visual inspection table stop found defects in front of the operators visual. Here the operator can judge the defect or group of defects and compare it with the defect images displayed on the monitor. If possible, the operator can cure the defect or choose to cut it out. An automatic scissor is integrated into the table to cut out the defect or defects. After joining the two ends together with a label, the automatic squeezer is used to make a solid seal.

Furthermore, the visual inspection table is equipped with a waste button. If many defects appear over a longer length, the operator can choose to scrap the material for a few meters by pushing the waste button. In waste mode, the inspection system keeps inspecting the material. In this way, the operator can see on the monitor when good material appears again and switch back to normal inspection mode after removing the waste material.

Easy operation via HMI

The complete VIU™ is operated via the user friendly HMI. Article settings from the Texplorer CORE™ inspection software can be selected from the Article tab on the HMI. Select your article, click on start and the inspection system is ready to go. Furthermore, settings for inspection, stopping distance and defect clustering can be adjusted. But also language settings and user authorisation. Alarms and counters are displayed on the main screen. For instance, J-box full, Knot detected, Doors opened, Safety switch activated, number of defects found and length of inspected seatbelt webbing.

Main buttons

  • Start/stop
  • Load article
  • Speed selection
  • Reset counters


  • Defect clustering
  • Inspection settings
  • Stopping distance
  • Squeezer settings
  • Scissor settings
  • User level authorization

Alarms & notifications

  • J-box level sensors
  • Knot detected sensor
  • Belt detected sensor
  • Door sensors
  • Safety switches
  • Watch dog signal


  • Vision defect counter
  • Filament defect counter
  • Applied labels counter
  • Belt inspected meter

Labeling defects

The fully automatic VIU™ models use a label applicator to label single or a group of defects, without the need of stopping or slowing down the inspection process. After applying the label, the label is folded and pressed. By using ferrous labels, an inductive sensor checks the presence of the applied label. VIU™ uses a special label algorithm to cluster defects within a specified length of seatbelt webbing. All settings can be made and saved via the integrated HMI.

comvis narrow fabric label applicator labels detected defects on textile
comvis FD3 sensor detects broken filaments on narrow fabric (for example seatbelt)

Integrated FD3™ Filament Detection Sensors

FD3™ is integrated in most VIU™ models as additional inspection to the vision surface inspection, as these defects are known to be not visible on cameras images. The Filament Detector FD3™ detects large and small single or multiple broken filaments on seatbelt webbing with a maximum width of 55 millimeters. FD3 consists of 2 brackets; one for the top side and  the second for the bottom side of the fabric. Each bracket has two outputs, one for small multi filaments and one for large single filaments. The sensitivity for these outputs is adjustable individually via de FD3™ Manager. The output signals can be used for machine control directly.

Texplorer™ CORE inspection software on VIU™

COMVIS Texplorer™ CORE is the industry’s most powerful and modular vision inspection software for woven, nonwoven, knitted and other (technical) textiles. Using a variety of state of the art image processing algorithms for detection of deviations in the surface and edges of materials. COMVIS have developed Texplorer™ CORE with the idea that fabric manufacturers produce more good than bad fabric. Therefore, users do not have to teach defects, but can start inspecting fabrics right away, without making difficult inspection settings. All our Profiler™ (wide fabric) and VIU™ (narrow fabric) inspection systems run Texplorer™ CORE inspection software.

  • Multiple inspection modules for surface inspection
  • Edge anomolies, width measurement and vision filaments modules
  • Default lay-outs and article templates for seatbelt webbing included
  • Settings for illumination
  • Settings for cameras
  • Defect images saved as multi-layer images; defect image + overlay
  • Session folders containing defect images per inspection session
  • OPC UA connection between PLC and Texplorer™ CORE
    for example for loading article data using your HMI
  • Different user levels and authorization


Standard single-end inspection system for seatbelt with automatic labelling of defects without stopping.



Single-end inspection system for seatbelt with automatic labelling of defects or stopping defects on visual inspection table in semi-automatic mode.



Independently functioning dual-end inspection system for seatbelt, stopping defects on visual inspection table, with automatic cutter and squeezer.



Simplified single-end inspection system for seatbelt with automatic labelling of defects without stopping.



Passive single-end inspection system for seatbelt with automatic labelling of defects.  OEM-version / table model without motors/drivers and additional sensors and safety devices. Can be integrated in existing lines or machines build by the customer.

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