$ 104.65
SICK VL18-4P3440 retro-reflective photoelectric sensor with polarizing filter for reliable object detection in industrial automation environments.
The SICK VL18-4P3440 retro-reflective photoelectric sensor is a compact M18 industrial sensor designed for stable and accurate object detection in automated systems. It addresses common problems such as false detection, inconsistent switching, and limited installation space. Using visible red LED light with a polarizing filter, it reliably detects objects even when surfaces are glossy or highly reflective. With a sensing distance suitable for typical conveyor and machine applications, a durable metal housing, and an IP67-rated enclosure, the VL18-4P3440 is well suited for continuous operation in demanding factory environments where reliability and consistency are essential.
In practical applications, the VL18-4P3440 improves detection reliability where environmental conditions and object variations often cause sensing issues. The polarizing filter reduces interference from background reflections, helping maintain consistent output signals. Sensitivity adjustment allows installers to fine-tune performance directly on the sensor, reducing setup time. Its fast switching capability supports moving products on conveyors, while the robust metal body withstands vibration, dust, and moisture. Standardized electrical connection and a wide supply voltage range simplify system integration, lowering installation effort and long-term maintenance costs in industrial automation systems.
The SICK VL18-4P3440 is chosen when reliability cannot be compromised. Its retro-reflective design with polarization delivers consistent detection even in environments filled with reflective surfaces, dust, or vibration. The compact M18 metal housing fits easily into tight machine layouts, while adjustable sensitivity and fast response ensure stable operation across varying product sizes and speeds. It is a dependable sensing solution built for long-term industrial use.
The VL18-4P3440 solves common detection issues such as false switching, missed objects, and unstable signals caused by shiny materials or background reflections. It provides accurate object presence detection over a defined distance, even in harsh conditions. This helps prevent production stoppages, counting errors, and conveyor misalignment, ensuring smooth automation workflows and consistent process control in manufacturing and intralogistics systems.
| Feature | Details | Benefit |
|---|---|---|
| Sensor Type | Retro-reflective photoelectric sensor | Ensures reliable object detection independent of object color or surface |
| Functional Principle | Retro-reflective with polarizing filter | Prevents false switching from shiny or reflective objects |
| Sensing Range | 0.05 m to 3.0 m (up to 3.7 m max. with reflector) | Suitable for medium-range conveyor and machine applications |
| Light Source | Visible red LED | Easy alignment and clear visual setup during installation |
| Optical Design | Approx. 2.8° focus and dispersion angle | Provides precise detection with controlled light spread |
| Housing Size | 18 × 18 × 75 mm (M18 × 1 thread) | Compact design for tight installation spaces |
| Housing Material | Nickel-plated brass (metal) | High resistance to mechanical stress and industrial environments |
| Enclosure Rating | IP67 | Reliable operation in dusty, wet, and washdown conditions |
| Switching Output | PNP, light/dark switching selectable | Flexible integration with PLC and control systems |
| Response Time | ≤ 2 ms | Supports fast-moving objects on conveyors |
| Switching Frequency | Up to 250 Hz | Stable performance in dynamic automation processes |
| Sensitivity Adjustment | 270° potentiometer | Fine-tuning for optimal detection accuracy |
| Electrical Connection | M12, 4-pin male connector | Standardized, easy wiring and maintenance |
| Supply Voltage | 10–30 V DC | Compatible with common industrial power systems |
| Current Consumption | Approx. 30 mA (no load) | Energy-efficient continuous operation |
| Operating Temperature | –25 °C to +70 °C | Reliable performance across wide temperature ranges |
| Compliance & Protection | Reverse polarity, short-circuit, and overload protection | Enhances system safety and sensor longevity |
Download SICK VL18-4P3440 (6013587) Datasheet
| Commercial Data | Details |
|---|---|
| EAN Number | 4047084102752 |
| Weight | 61 g |
| Country of Origin | Italy |
In modern packaging lines, cartons often vary in size, print finish, and surface reflectivity, which can lead to unreliable detection. The VL18-4P3440 is well suited for these environments because its retro-reflective principle with polarization minimizes interference from glossy surfaces. Its fast response supports closely spaced cartons moving at high speeds, ensuring accurate counting and reliable triggering of diverters. Sensitivity adjustment allows the same sensor to be reused across different product formats, reducing changeover time. This results in smoother conveyor operation, fewer missed detections, and improved overall line efficiency in packaging facilities.
Automated intralogistics systems require dependable pallet detection to avoid collisions and misrouting. The VL18-4P3440 provides consistent presence sensing even when pallets differ in color, material, or condition. Its extended sensing range allows flexible mounting across conveyor gaps, while the robust metal housing withstands vibration and mechanical stress from heavy loads. Stable switching signals help the control system make accurate decisions, reducing unexpected stops and protecting conveyor equipment. This reliability supports continuous pallet flow and improves safety in high-throughput warehouse operations.
Assembly machines often need confirmation that parts are correctly positioned before proceeding to the next process step. The VL18-4P3440 enables reliable detection of components with reflective or semi-gloss surfaces that can confuse basic sensors. Its compact M18 design fits easily into confined machine frames, while fine sensitivity adjustment allows precise setup for small or irregular parts. Fast switching supports short cycle times, helping maintain production speed. This reduces assembly errors, prevents downstream faults, and improves overall manufacturing consistency.
Packaging and filling machinery depends on accurate position feedback to synchronize product movement, sealing, and labeling operations. The VL18-4P3440 delivers stable detection of carriers or machine elements even in environments exposed to dust or moisture. Its sealed construction supports daily cleaning routines without performance loss. Consistent signal output helps maintain precise timing between machine stations, reducing rejected products and downtime. This makes it a reliable choice for continuous operation in food, beverage, and consumer goods production lines.
| Category | Model Name | Part Number | Benefit |
|---|---|---|---|
| Mounting Bracket | BEF-WN-M18 | 5308446 | Securely mounts M18 sensors on machine frames; improves alignment stability |
| Reflector Mounting Bracket | BEF-WN-REFX | 2064574 | Ensures precise and stable reflector positioning for reliable detection |
| Universal Clamp Plate | BEF-KHS-N11N | 2071081 | Flexible clamping solution for complex or adjustable installations |
| Sensor Cable (PVC, 5 m) | YF2A14-050VB3XLEAX | 2096235 | Cost-effective cabling for standard industrial environments |
| Sensor Cable (PUR, 5 m) | YF2A14-050UB3XLEAX | 2095608 | High durability for oil exposure, drag chains, and robotic motion |
| M12 Connector | STE-1204-G | 6009932 | Simplifies wiring with screw terminals; supports quick commissioning |
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