Industrial Slot Type Photoelectric Sensor
Get precise object detection solutions directly from the factory. Our U-shaped sensors are designed for label detection, gear counting, and edge control, ensuring high stability and fast response in automated production lines..
✅ Features high-speed response frequency (up to 3kHz) for accurate counting and motion control. Ideal for packaging and printing machinery.
✅ Wide range of slot widths available (5mm, 30mm, 50mm, etc.) with Light-ON/Dark-ON switchable modes to fit diverse mounting requirements.
✅ Built-in protection against reverse polarity and short-circuits. Durable IP65 housing ensures reliable performance in harsh industrial environments.
The best slot type photoelectric sensor
We provide versatile through-beam sensors compatible with various mounting requirements. Our slot photoelectric switches ensure precise passing object detection for your labeling,
Intelligent Solid State Cylinder Sensor
Model: CF-S300 (NPN/PNP)
Applicable materials: Perfectly fits C-slot and T-slot cylinders. Compatible with SMC, Festo, AirTAC, and ISO standard pneumatic actuators.
Core advantages: Ultra-fast response (<10μs), Wear-free lifespan (100 million+ cycles), IP67 Oil/Water resistant, Built-in short-circuit & polarity protection.
Intelligent Solid State Cylinder Sensor
Model: CF-S300 (NPN/PNP)
Applicable materials: Perfectly fits C-slot and T-slot cylinders. Compatible with SMC, Festo, AirTAC, and ISO standard pneumatic actuators.
Core advantages: Ultra-fast response (<10μs), Wear-free lifespan (100 million+ cycles), IP67 Oil/Water resistant, Built-in short-circuit & polarity protection.
Intelligent Solid State Cylinder Sensor
Model:CF-S300 (NPN/PNP)
Applicable materials: Perfectly fits C-slot and T-slot cylinders. Compatible with SMC, Festo, AirTAC, and ISO standard pneumatic actuators.
Core advantages: Ultra-fast response (<10μs), Wear-free lifespan (100 million+ cycles), IP67 Oil/Water resistant, Built-in short-circuit & polarity protection.
Intelligent Solid State Cylinder Sensor
Model: CF-S300 (NPN/PNP)
Applicable materials: Perfectly fits C-slot and T-slot cylinders. Compatible with SMC, Festo, AirTAC, and ISO standard pneumatic actuators.
Core advantages: Ultra-fast response (<10μs), Wear-free lifespan (100 million+ cycles), IP67 Oil/Water resistant, Built-in short-circuit & polarity protection.
Intelligent Solid State Cylinder Sensor
Model: CF-S300 (NPN/PNP)
Applicable materials: Perfectly fits C-slot and T-slot cylinders. Compatible with SMC, Festo, AirTAC, and ISO standard pneumatic actuators.
Core advantages: Ultra-fast response (<10μs), Wear-free lifespan (100 million+ cycles), IP67 Oil/Water resistant, Built-in short-circuit & polarity protection.
Intelligent Solid State Cylinder Sensor
Model:CF-S300 (NPN/PNP)
Applicable materials: Perfectly fits C-slot and T-slot cylinders. Compatible with SMC, Festo, AirTAC, and ISO standard pneumatic actuators.
Core advantages: Ultra-fast response (<10μs), Wear-free lifespan (100 million+ cycles), IP67 Oil/Water resistant, Built-in short-circuit & polarity protection.
Your trusted Chinese groove type photoelectric sensor manufacturer
Delivering industrial-grade precision, factory-direct pricing, and global support since 2015.
Factory Direct & Custom Engineering
Our R&D team optimizes optical path designs and internal circuits to ensure stable detection of opaque objects. We offer flexible customization for slot widths (5mm-120mm), housing shapes (L/T/F-type), and connection methods to perfectly match your specific automation equipment.
✅Support OEM/ODM
Rigorous Quality Control Standards
Every slot sensor undergoes strict anti-interference testing and 48-hour aging tests before shipment. We strictly verify response frequencies and vibration resistance under ISO 9001 standards to guarantee durability in dusty or vibrating industrial environments.
✅100% Tested & < 0.1% Defect Rate
Global Logistics & Expert Technical Support
We understand that sensor downtime equals lost revenue. We maintain a massive inventory of standard slot sensors (5mm to 30mm width) for immediate DHL/FedEx dispatch. Plus, our application engineers provide direct guidance on NPN/PNP wiring and Light-ON/Dark-ON configuration to ensure seamless integration.
✅VIP Priority Response < 2 Hours
Free Sample Qualification Program
Not sure about the slot width or output logic? Request a free sample to test on your automated equipment before bulk ordering.
Step 1: Submit Requirements
Send us your current sensor model number (e.g., Omron/Keyence equivalent) or specific requirements like slot width (5mm-120mm). Our engineers will identify the perfect drop-in replacement for you.
Step 2: Same-Day Dispatch
We maintain a large inventory of standard U-shaped sensors. Once confirmed, we dispatch the test units within 24 hours via DHL/FedEx so you can start testing immediately.
Step 3: On-Site Validation
Install the sensor on your production line. Verify the response speed, counting accuracy, and anti-interference performance directly on your machinery with zero risk.
Massive Inventory & Secure Global Shipping
"We maintain a ready stock of over 50,000 standard sensors to meet urgent maintenance needs. Every switch is individually packed in anti-static (ESD) bags and reinforced cartons to ensure zero damage during air or sea transit."
YOUR TRUSTED SLOT SENSOR MANUFACTURER
Dedicated to industrial automation sensors since 2015. Operating from a 5,000m² dust-free manufacturing facility, we deliver factory-direct slot photoelectric sensors with strict quality control. We empower global automation equipment manufacturers with high-precision, cost-effective optical detection solutions.
🌍 Exporting to 50+ Countries
📜 CE, RoHS, UL, IP67 Certified
⭐ 5,000,000+ Sensors Shipped
🤝 ISO 9001 Certified Factory
Certification
We have passed TUV’s CE certification, ROHS certification, FDA certification, ETL CSA certification, and comply with European and American standards.





Trusted by Automation Engineers Worldwide
See why 500+ manufacturers switch to our slot sensors for precise counting and reliable edge detection.
FAQ
How do I choose between NPN and PNP output?
It depends on your PLC or controller input requirements. generally, Asian markets (like Japan) often use NPN (sinking mode), while European markets prefer PNP (sourcing mode). Our sensors are available in both types. If you are unsure, please check your PLC manual or contact our support team.
Can I switch between Light-ON and Dark-ON modes?
Yes! Most of our standard models feature selectable output logic. You can switch between Light-ON (output active when slot is clear) and Dark-ON (output active when beam is blocked) simply by changing the wiring connection.
Are your sensors compatible with major brands like Omron or Keyence?
Absolutely. Our slot sensors are designed with standard industry dimensions and mounting holes. They can serve as direct “drop-in” replacements for popular series (e.g., EE-SX670 series) with equivalent performance but at a more competitive price.
What is the minimum detectable object size?
For our standard 5mm slot width models, the minimum detectable object is a 2mm x 0.8mm opaque object. We ensure high precision for detecting labels, gears, and small mechanical parts.
Do you offer custom slot widths or cable lengths?
Yes, as a direct manufacturer, we offer flexible customization. Besides standard 5mm slots, we provide wide-slot options (e.g., 30mm, 50mm, up to 120mm) and custom cable lengths (2m, 5m, or connector types like M8/M12) to fit your specific machinery.
Is there a warranty for your products?
We stand by our quality with a 2-year warranty on all slot photoelectric sensors. If any manufacturing defect occurs, we provide free replacement or repair services.