€ 169.80
High-precision SICK WTB8L-P2131 laser sensor with fast response, stable background suppression, and reliable detection for small or high-speed objects.
The SICK WTB8L-P2131 laser photoelectric sensor is designed for applications that demand stable and precise object detection, even when the environment presents challenging surfaces or varying backgrounds. Using a fine Class 1 red laser spot that stays consistent up to 300 mm, it accurately detects small components with minimal influence from surrounding structures. The compact housing (11 × 31 × 20 mm) allows easy integration into tight spaces while maintaining strong detection performance. With adjustable sensing and a clearly focused beam, this model supports consistent and dependable operation in fast-paced industrial processes.
This sensor delivers reliable detection through high-speed performance, responding in just 0.25 ms to fast-moving items on production lines. Its background suppression capability helps prevent false triggers from reflective or dark areas, making it suitable for mixed-material handling. Practical features such as LED status indicators, a durable IP67 enclosure, and a 4-turn adjustment for sensing range help simplify installation and fine-tuning. Whether used for positioning components, verifying parts, or monitoring rapid motion, the WTB8L-P2131 enhances productivity by maintaining stable detection even in demanding industrial conditions.
The SICK WTB8L-P2131 stands out because it delivers laser-sharp precision in an extremely compact body, giving engineers a powerful tool for detecting tiny or fast-moving objects with confidence. Its stable background suppression allows it to “ignore the noise” and focus only on the target. If you need dependable detection in tight spaces or challenging environments, this model consistently performs where many sensors fail.
The WTB8L-P2131 solves the common problem of unreliable detection caused by highly reflective, dark, or low-contrast materials. Its focused laser spot and rapid response eliminate false triggers that slow down production. By providing consistent, trustworthy sensing at high speed, it ensures smoother automation, fewer downtime interruptions, and more accurate quality control across industrial processes.
| Feature | Details | Benefit |
|---|---|---|
| Detection Principle | Photoelectric proximity sensor with background suppression | Reliable detection even in complex or reflective environments; minimizes false triggers |
| Light Source | Visible red Class 1 laser, 650 nm wavelength | High precision beam ideal for detecting very small parts |
| Laser Spot Size | Ø 1.5 mm at 300 mm distance | Ensures tight, accurate focus for micro-object detection |
| Sensing Range | 40 mm … 300 mm adjustable (max 30 mm … 300 mm) | Flexible setup for short to mid-range detection applications |
| Response Time | ≤ 0.25 ms | Excellent for high-speed production lines and fast-moving components |
| Switching Frequency | 2,000 Hz | Supports rapid and repeatable detection in dynamic processes |
| Output Type | PNP switching output, selectable light/dark switching | Easy integration into existing controls and adaptable logic behavior |
| Adjustment Method | 4-turn potentiometer and rotary switch | Simple, precise tuning for sensing distance and mode |
| Housing Material | ABS plastic housing with PMMA optical head | Lightweight yet durable for long-term industrial use |
| Enclosure Rating | IP67 | Offers strong resistance to dust and moisture |
| Connection Type | M8, 3-pin connector | Standardized industrial connector for quick installation |
| Operating Voltage | 10–30 V DC | Compatible with most industrial power systems |
| Current Consumption | 30 mA (without load) | Energy-efficient for continuous operation |
| Operating Temperature | –10 °C to +50 °C | Suitable for general industrial environments |
| Included Accessory | Stainless steel mounting bracket BEF-W100-A | Ready-to-install package with stable mounting support |
| Special Applications | Suitable for small-object detection and high-speed movement sensing | Ideal for precision tasks and fast conveyor operations |
| Certifications | CE, UKCA, cRUus, China RoHS, Laser Safety compliant | Ensures global compatibility and operational safety |
Download SICK WTB8L-P2131 (6033219) Datasheet
| Commercial Data | Details |
|---|---|
| EAN Number | 4047084163623 |
| Weight | 54 g |
| Country of Origin | Japan |
Packaging machinery often handles products that vary in shape, reflectivity, and spacing. The WTB8L-P2131 is well-suited for this environment because its sharply focused laser spot can identify objects even when they pass very close together. It resists interference from glossy film, shiny conveyor belts, or packaging materials that normally cause optical sensors to misread. With its fast reaction time, it keeps up with rapid cycles without missing items. This helps ensure that cartons are filled correctly, count errors are minimized, and the system maintains smooth flow. The sensor contributes to better production efficiency by maintaining dependable detection across long operating hours.
Electronics assembly lines require accurate presence checks for tiny parts such as clips, connectors, and miniature housings. The WTB8L-P2131 performs well here because its narrow laser spot can pick out small components even when mounted against reflective circuit boards. Its ability to suppress background interference helps avoid false positives caused by polished metal fixtures or bright solder surfaces. The compact housing fits easily into crowded automation cells, allowing robots and placement tools to operate without obstruction. By ensuring each component is correctly positioned before the next step begins, the sensor helps reduce assembly errors, rework, and interruptions during quality checks.
In facilities that handle mixed mechanical parts—such as springs, pins, or molded fittings—detection consistency is critical. The WTB8L-P2131’s laser beam makes it easier to distinguish each part as it moves over the conveyor, even when colors and textures vary significantly. Traditional sensors may struggle when parts overlap or appear at different angles, but the precise beam and high switching frequency maintain stable tracking. This improves the accuracy of sorting machines and allows downstream processes to operate without repeated manual adjustments. Its reliability helps prevent jams, ensures smoother feeding of components, and supports continuous operation in fast-paced production lines.
Filling systems for liquids or creams often use bottles made of clear plastic, dark glass, or translucent materials. These can confuse standard optical sensors, but the WTB8L-P2131’s focused laser spot remains stable regardless of bottle transparency or shape. It confirms that each container is correctly positioned before the filling or sealing process begins. This prevents unwanted spills and avoids cycling when no bottle is in place. The quick response time suits high-speed lines where timing windows are tight. The result is a more reliable filling process, fewer stoppages due to detection errors, and improved productivity for operators managing large batches.
| Category | Model / Name | Part Number | Compatibility Benefit |
|---|---|---|---|
| Mounting Bracket (Included) | BEF-W100-A | 5311520 | Provides stable mounting and correct alignment for W8 series sensors |
| Universal Clamp Bracket Plate (Option 1) | BEF-KHS-N08 | 2051607 | Allows adjustable mounting for W8 Laser and multiple SICK sensor families |
| Universal Clamp Bracket Plate (Option 2) | BEF-KHS-N11N | 2071081 | Heavy-duty mounting for demanding environments |
| M8 Male Connector | STE-0803-G | 6037322 | Simple and secure electrical connection for WTB8L-P2131 |
| Sensor/Actuator Cable – PVC | YF8U13-050VA1XLEAX | 2095884 | Suitable for general areas or zones with mild chemicals |
| Sensor/Actuator Cable – PUR | YF8U13-050UA1XLEAX | 2094788 | Ideal for robotic arms, drag chains, and environments with oils/lubricants |
For expert guidance before placing your order.
Warranty – 1-year warranty for your peace of mind.
Global Shipping – We ship worldwide with secure packaging and reliable delivery.
Technical Support – Contact us for professional after-sales technical assistance.
