SICK WL9L-3P2432S02 Photoelectric Laser Sensor – Precision Detection for Industrial Automation
The SICK WL9L-3P2432S02 Photoelectric Sensor is a compact laser-based retro-reflective sensor built to deliver precise and stable object detection in complex industrial environments. Using a visible red laser beam with a fine 1 mm light spot, it can detect even very small or glossy targets with remarkable accuracy. Designed with a robust VISTAL® housing and rated IP66/IP67/IP69K, it resists dust, moisture, and high-pressure cleaning. The simple teach-in function allows quick setup and calibration, ensuring consistent performance in packaging, material handling, and assembly systems where precision and reliability are essential.
The WL9L-3P2432S02 combines laser accuracy with advanced optical alignment, enabling fast and repeatable detection up to 12 m range without false triggers. Its 0.5 ms response time makes it suitable for rapid production lines that demand real-time feedback. The coaxial optical path helps eliminate reflection errors and blind spots, while the durable plastic body ensures long service life even under vibration or temperature changes. This sensor reduces setup time, increases uptime, and improves process quality—making it a smart, low-maintenance solution for precise detection in automated inspection, robotics, and quality assurance applications.
Why WL9L-3P2432S02?
Because it transforms precision into simplicity. The WL9L-3P2432S02 merges laser accuracy, ultra-fast response, and effortless setup into one compact sensor. It captures even the smallest, most reflective, or transparent targets where others fail. Designed for harsh environments, it delivers dependable performance that keeps automation lines running flawlessly—day after day.
What Problem Does It Solve?
It eliminates the frustration of inconsistent or missed detections in demanding production lines. The WL9L-3P2432S02 solves challenges in identifying tiny or shiny objects, handling vibration-prone setups, and working in washdown conditions. By ensuring precise and stable detection under all conditions, it boosts productivity, reduces downtime, and simplifies sensor maintenance for operators and engineers alike.
Key Features & Specifications – SICK WL9L-3P2432S02: Article Number 1058178
| Feature | Details | Benefit |
|---|---|---|
| Functional Principle | Photoelectric retro-reflective sensor (laser) | Accurate detection of objects using visible laser light for pinpoint precision |
| Light Source | Visible red laser, 650 nm wavelength | Provides clear alignment and reliable sensing of small or reflective targets |
| Laser Class | Class 1 (IEC 60825-1 / CDRH compliant) | Safe to use in open environments without protective shielding |
| Sensing Range | 0 to 8 m (typical), up to 12 m (max with PL80A reflector) | Enables flexible detection distance for short and long-range applications |
| Light Spot Size | Ø 1 mm at 500 mm distance | Detects fine or small parts with minimal measurement error |
| Response Time | ≤ 0.5 ms | Ideal for high-speed processes requiring immediate detection feedback |
| Switching Frequency | 1,000 Hz | Ensures stable output even in rapid movement or production lines |
| Output Type | PNP, dark switching | Compatible with standard industrial control systems |
| Adjustment Method | Single teach-in button | Simple one-touch calibration for quick setup and reduced downtime |
| Connection Type | M12 male connector, 4-pin | Standardized connection for easy integration |
| Housing Material | Plastic (VISTAL®) | Lightweight and highly durable material for extended service life |
| Optics Material | Plastic (PMMA) | Delivers optical clarity and mechanical stability |
| Protection Rating | IP66 / IP67 / IP69K | Resistant to dust, water jets, and high-pressure cleaning environments |
| Operating Temperature | –10 °C to +50 °C (extended –30 °C to +55 °C) | Reliable operation across wide temperature ranges |
| Power Supply Voltage | 10 V DC – 30 V DC | Works with common industrial power systems |
| Current Consumption | 30 mA (typical) | Energy-efficient for continuous operation |
| Mounting Type | M3 screw holes | Secure and easy installation on any surface or bracket |
| Special Function | Polarizing filter for reflective suppression | Improves accuracy when detecting shiny or mirror-like surfaces |
| Certifications | cULus, ECOLAB, UKCA, China-RoHS, Laser Safety | Globally recognized compliance for industrial standards |
Download SICK WL9L-3P2432S02 (1058178) Datasheet
Commercial Information – SICK WL9L-3P2432S02: Article Number 1058178
| Commercial Data | Photoelectric Sensor |
|---|---|
| EAN Number | 4047084301445 |
| Weight | 43 g |
| Country of Origin | Germany |
The Applications – Real-World Uses of SICK WL9L-3P2432S02 Photoelectric Sensor
1. Precision Detection in Electronics Assembly
In electronic manufacturing lines, where tiny parts such as resistors and connectors must be positioned accurately, the WL9L-3P2432S02 ensures precise verification during high-speed placement. Its fine 1 mm laser spot captures even the smallest details, detecting missing or misaligned components instantly. The 0.5 ms response time supports rapid motion control, while the robust IP69K housing maintains accuracy even in areas exposed to soldering fumes or static discharge. This helps prevent costly rework and enhances assembly line reliability.
2. Transparent Packaging Inspection in Beverage Lines
Clear PET bottles and plastic containers often challenge standard sensors due to light refraction. The WL9L-3P2432S02 solves this by using a visible red laser beam with coaxial optics, enabling stable detection of transparent materials. It verifies bottle presence, cap alignment, or fill-level consistency even under bright factory lighting. With its retro-reflective design, installation is simple, and the IP69K protection ensures lasting performance in washdown environments, helping bottling plants maintain production speed and quality assurance.
3. Reflective Metal Part Verification in Automotive Production
During vehicle assembly, reflective chrome trims or metal components can confuse conventional sensors. The WL9L-3P2432S02 counters this issue using a polarizing filter that reduces false reflections from glossy surfaces. Its laser-based precision ensures that door clips, brackets, or fasteners are correctly positioned before welding or painting. The vibration-resistant VISTAL® housing adds durability in tough factory conditions, ensuring continuous operation and preventing quality issues from undetected parts.
4. Position and Hygiene Monitoring in Food Processing
In food packaging or tray-filling systems, sensors must function flawlessly despite exposure to cleaning agents and moisture. The WL9L-3P2432S02’s IP69K-rated enclosure allows frequent washdowns without damage. It monitors tray positions, detects labels, and confirms product presence with consistent precision. The single teach-in button simplifies setup after maintenance, minimizing downtime. Its laser accuracy guarantees proper alignment and safe handling, contributing to smooth, contamination-free production in hygiene-critical zones.