Reflex-Lichttaster-Kontrasttaster XWDGM

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Overview
The XWDGM Contrast Sensor is a high-precision photoelectric mark detection sensor designed for automatic web guiding, registration control, label positioning, printing alignment and packaging automation. It uses advanced optical sensing to detect color marks, registration marks, printed patterns, labels and contrast differences on moving materials, enabling accurate positioning and reliable machine control.

Key Features

• High-speed mark detection: accurately detects registration marks during high-speed production.
• High contrast recognition: detects subtle differences between printed marks and background materials.
• Fast response time: suitable for high-speed printing, packaging and converting lines.
• Multi-color detection capability: supports black, white, red, blue, yellow and other color marks.
• Stable signal output: provides reliable feedback signals for automation systems.
• Compact industrial design: easy installation in limited machine spaces.
• Strong anti-interference performance: stable operation under varying ambient lighting conditions.
• Long service life: designed for continuous industrial production environments.

How it works

• The sensor projects focused light onto the moving web material.
• Printed marks reflect light differently from the background.
• The sensor detects contrast changes between marks and background.
• Detected signals are converted into electrical outputs.
• A controller processes the detection signal and triggers registration correction or positioning actions.
• The system maintains precise web positioning throughout production.

Typical Applications

• Printing machines (print-to-cut, print-to-lamination registration)
• Label converting machines (accurate label cutting and positioning)
• Packaging machinery (eye marks and registration mark tracking)
• Slitting machines (improved cut positioning and alignment)
• Rewinding machines (accurate roll positioning and tracking)
• Laminating and coating equipment
• Lithium battery roll-to-roll production (electrode mark detection)
• Flexible packaging production

Suitable Materials

• Printed film
• Plastic film
• BOPP, PET, CPP, PE films
• Paper
• Labels and adhesive tapes
• Aluminum foil, copper foil
• Flexible packaging materials
• Battery electrode materials
• Nonwoven and textile materials

Compatible System Components

• Web Guide Controller
• Web Guide Actuator
• Web Guiding System
• Web Guide Sensor
• CCD Sensor for web guiding
• Ultrasonic edge sensor
• Tension Control System and Automatic Tension Controller
• Through-shaft tension detector
• Magnetic particle brake
• Magnetic particle clutch
• Air expanding shaft / leaf-type air shaft
• Differential slip shaft
• Slitting machine solutions

Advantages

• Improves registration accuracy and print-to-cut alignment
• Reduces material waste by minimizing positioning errors
• Increases production efficiency on high-speed automated lines
• Maintains consistent product quality through reliable mark tracking
• Easy integration with PLCs, motion controllers and web guiding systems
• Reliable industrial performance in demanding manufacturing environments

Industries Served

• Printing & packaging
• Label manufacturing and converting
• Flexible packaging production
• Lithium battery manufacturing
• Electronics materials processing (foil handling)
• Paper converting
• Textile & nonwoven production

Why choose XWDGM

• ISO 9001 certified manufacturing and quality management
• Advanced optical detection technology with high sensitivity
• OEM & ODM support for custom sensing distances, outputs and mounting options
• Professional engineering support for installation, setup and troubleshooting
• Designed for continuous industrial use and high reliability

Caractéristiques / spécifications techniques

• Type: Optical contrast / mark detection sensor (XWDGM series)
• Function: Color/contrast mark detection, registration mark tracking, edge/label detection
• Performance: High-speed response suitable for high-speed printing and converting lines
• Detection: Multi-color and high-contrast mark recognition
• Signal output: Stable industrial signal output compatible with common controllers
• Design: Compact industrial housing for limited-space installation
• Environmental robustness: Strong anti-interference under varying ambient lighting
• Compatibility: Integrates with web guide controllers, actuators, tension systems and PLCs
• Applications: Printing, slitting, rewinding, labeling, packaging, laminating, coating, battery electrode production