$ 172.50
High-precision SICK HTB18L-N4A5BB laser sensor with background suppression for reliable small-object detection in demanding industrial automation.
The SICK HTB18L-N4A5BB photoelectric sensor is a compact M18 laser sensor created to deliver stable detection where accuracy and repeatability are crucial. Its finely focused red laser and controlled background suppression allow it to identify small or low-contrast objects within a defined sensing range without being influenced by surrounding surfaces. The rugged design ensures dependable operation across a wide temperature span, making it suitable for demanding industrial settings. With its fast response and consistent switching behavior, the sensor is ideal for automated lines that must maintain high productivity while minimizing detection errors.
The HTB18L-N4A5BB strengthens machine performance by offering reliable part detection even when objects vary in color, reflectivity, or texture. Its rapid reaction time helps prevent delays in high-speed processes, and the visual feedback indicators make setup and monitoring simple for technicians on the floor. A durable housing and sealed construction support long-term use in environments exposed to dust, cleaning fluids, or mechanical stress. Its compact footprint and standard connector interface simplify installation into new or existing equipment. By ensuring accurate detection in challenging scenarios, the sensor helps reduce stoppages, improve material flow, and maintain consistent output quality.
The HTB18L-N4A5BB stands out because it brings laser-sharp precision into a compact industrial sensor. It reliably detects even tiny or low-contrast parts that typical sensors often miss, keeping production lines running smoothly. Its durable build, fast reaction speed, and stable background suppression make it a dependable choice for any environment where accuracy truly matters.
This model eliminates inconsistent detection caused by changes in surface color, reflectivity, or background conditions. It prevents false triggers that slow down automated processes and cause quality issues. By ensuring that every object—big or small—is detected correctly the first time, it helps maintain high productivity and reduces costly interruptions on the line.
| Feature | Details | Benefit |
|---|---|---|
| Sensing Principle | Photoelectric proximity sensor with background suppression | Stable detection unaffected by surface color or reflectivity |
| Light Source | Class 1 red laser, 655 nm | Precise, focused detection of small or thin objects |
| Sensing Range | 30–250 mm (max 300 mm depending on target) | Flexible installation and reliable performance in tight spaces |
| Spot Size | Approx. 2 mm at 120 mm distance | Allows highly accurate positioning and detection of minute parts |
| Response Time | ≤ 0.5 ms | Suitable for high-speed automation and fast-moving lines |
| Switching Output | NPN, complementary (light & dark switching) | Compatible with diverse PLC logic and control setups |
| Output Current | Up to 100 mA | Supports direct integration with actuators or indicator loads |
| Connection Type | M12 male, 4-pin | Simple plug-and-play wiring in standard industrial systems |
| Mounting Type | M18 thread, head or side mounting | Versatile installation to fit different machine layouts |
| Housing Material | VISTAL® high-strength plastic | Durable, lightweight, and engineered for mechanical reliability |
| Optics Material | PMMA | Clear, robust optics for long-term sensing accuracy |
| Protection Rating | IP67 & IP69K | Withstands washdowns, moisture, and heavy industrial environments |
| Operating Temperature | –30°C to +55°C | Performs reliably in cold rooms, general factory settings, and warm production floors |
| Power Supply | 10–30 V DC | Works with standard industrial power systems |
| Current Consumption | ≤ 20 mA | Energy-efficient and suitable for multi-sensor installations |
| Signal Strength Indicator | Light bar on housing | Quick visual feedback for alignment and maintenance |
| Special Application | Designed for detecting small objects | Improved accuracy for packaging, sorting, assembly, and electronics manufacturing |
| Enclosure Certifications | CE, UL, UKCA, EMC compliant | Suitable for regulated and export-focused industrial requirements |
Download SICK HTB18L-N4A5BB (1074782) Datasheet
| Commercial Data | Details |
|---|---|
| EAN Number | 4047084392573 |
| Weight | 28 g |
| Country of Origin | United States |
In fast-moving production lines, even a single missed part can cause downstream errors or packaging issues. The HTB18L-N4A5BB excels in these environments because its focused laser spot can detect very small items traveling quickly on a conveyor belt. Differences in color, finish, or texture do not affect detection thanks to its stable background suppression, which prevents the sensor from reacting to belt surfaces or machine frames. This improves counting accuracy and reduces the risk of stoppages caused by miscounts. The sensor’s rapid response time ensures each item is registered in real time, keeping the entire flow reliable and consistent.
Factories that handle metallic, polished, or irregularly shaped parts often face detection challenges because reflected light can confuse conventional sensors. The HTB18L-N4A5BB solves this with its laser-based design that focuses on the object itself rather than nearby reflective surfaces. This is especially helpful in industries assembling precision components such as springs, screws, pins, or connector parts. By filtering out background influences, the sensor detects each piece consistently, preventing errors in sorting or feeding mechanisms. This gives manufacturers greater confidence in automated handling systems, ensuring small or shiny parts do not interrupt production accuracy.
In automated packaging systems, products must be correctly positioned inside trays, boxes, or pouches before sealing. Variations in shape, color, or surface finish can confuse basic optical sensors, leading to false positives or overlooked items. The HTB18L-N4A5BB overcomes this challenge by providing a controlled detection zone that reacts only to the product surface and not the packaging material behind it. Its compact M18 form factor fits easily into packing machinery, and its strong signal indicators help technicians confirm alignment quickly. This ensures packaging lines detect incomplete loads early, avoiding wasted materials and improving overall pack quality.
Manufacturing lines often require sensors that can recognize objects placed inside containers made of clear plastic, tinted materials, or other difficult surfaces. Traditional sensors may misread these situations because light passes through or scatters unpredictably. The HTB18L-N4A5BB handles these challenges by using a precise, narrow laser spot that identifies the actual object regardless of container transparency. Its background suppression prevents it from being influenced by container walls or the conveyor beneath. This makes it reliable for applications such as verifying filled bottles, counting items in trays, or detecting overlapping products before sorting. The result is fewer handling errors and better process control.
| Category | Model Name | Part Number | Benefits |
|---|---|---|---|
| Mounting Bracket (M18) | BEF-WN-M18 | 5308446 | Steel mounting bracket for M18 sensors; offers secure and stable installation for fixed positions; suitable for general industrial environments. |
| Universal Clamp Bracket Set | BEF-KHS-N11N | 2071081 | Stainless steel universal clamp bracket with adjustable angles; resistant to corrosion; includes mounting hardware for fast setup. |
| Sensor Cable (PVC, 5m) | YF2A14-050VB3XLEAX | 2096235 | M12 female to flying leads; flexible PVC cable ideal for standard factory conditions; ensures stable sensor connectivity. |
| Terminal Connector (M12 Male) | STE-1204-G | 6009932 | Screw-terminal M12 connector for custom wiring; convenient for on-site cable assembly or panel integration. |
| Sensor Cable (PUR, 5m, Halogen-Free) | YF2A14-050UB3XLEAX | 2095608 | Robust PUR cable for oily or harsh environments; suitable for robots and drag chains; long service life and high mechanical durability. |
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Warranty – 1-year warranty for your peace of mind.
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