High-Precision Slot Type Photoelectric Sensor
Expertly designed U-shaped thru-beam sensors for high-speed object counting and precise positioning. The emitter and receiver are pre-aligned within the rugged fixed housing, eliminating installation time and optical alignment hassle.
- Plug-and-Play Installation: The thru-beam optic axis is permanently fixed. No field alignment required—simply mount, wire, and begin detecting with zero setup time.
- Microsecond Response Speed: Ultra-fast response times (e.g., <50μs) and high switching frequencies (up to 5kHz) engineered for fast-moving conveyor lines and rotary indexing tables.
- Fine Object Resolution: Narrow visible or infrared light beam enables the reliable detection of very small parts, edge guiding of films, and precise counting of gear teeth.
Slot Type Photoelectric Sensors: High-Precision U-Frame Sensing
Slot type photoelectric sensors (U-shaped sensors) integrate the transmitter and receiver into a single robust housing. By eliminating the need for complex optical axis alignment, these sensors provide ultra-reliable detection for high-speed counting, edge guiding, and positioning in demanding automation environments.
Optimized Industry Applications
| Industry Sector | Key Use Cases | Performance Advantage |
|---|---|---|
| Packaging & Labeling | Label detection, transparent film sensing | Gap Detection Accurately identifies label gaps on backing paper even at high speeds. |
| Logistics & Conveying | Package counting, object presence detection | Plug & Play U-shaped design ensures the beam is always aligned, reducing installation time. |
| Semiconductor & Electronics | Wafer tray positioning, lead frame detection | Micro-Precision High-resolution beams detect objects as small as 0.2mm. |
| Printing Industry | Paper edge control, double-sheet detection | Fast Response kHz switching frequencies support ultra-fast rotating machinery. |
Technical Specifications (Industrial Series)
| Parameter | Specification | Parameter | Specification |
|---|---|---|---|
| Slot Width | 5mm to 120mm (Selectable) | Supply Voltage | 12 - 24V DC (±10%) |
| Light Source | Infrared (880nm) / Red LED | Response Time | < 20µs - 0.5ms (Model dependent) |
| Output Type | NPN / PNP (NO+NC Changeable) | Switching Frequency | Up to 5,000 Hz |
| Minimum Detectable Object | 0.2mm - 0.8mm | Protection Rating | IP65 / IP67 (Dust & Splash Proof) |
Key Advantages of Slot Sensors
🎯 Permanent Optical Alignment
Because the transmitter and receiver are fixed in one rigid frame, the optical axis is permanently aligned. This eliminates failures caused by vibration or machine shifting.
⚡ Ultra-High Speed Response
Optimized for rapid processing, our slot sensors can detect thousands of parts per minute, making them ideal for high-speed assembly and rotary encoders.
🌈 Multi-Color LED Indicators
Equipped with highly visible 360° status indicators (Power/Output), allowing technicians to monitor sensor health from any angle on the factory floor.
📏 Versatile Slot Dimensions
Available in various widths and depths to accommodate everything from thin labels to large mechanical parts on a conveyor belt.
🛠️ Rugged Zinc Alloy/PBT Housing
Constructed with industrial-grade materials to resist impact, chemical exposure, and electromagnetic interference (EMI).
🔍 Precision Potentiometer
Includes sensitivity adjustment to fine-tune detection thresholds for translucent objects or dusty environments, ensuring zero false triggers.
Upgrade Your Detection Accuracy Today
Not sure which slot width or light source fits your application? Contact our technical engineers for a free consultation.
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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.
XSZ sensor video display
Precision U-Frame & Fork Sensors for High-Speed Automation
Since 2015, XSZ has pioneered the engineering of Slot Type Photoelectric Sensors (U-shaped sensors). Designed for plug-and-play reliability, our fork sensors integrate the emitter and receiver into a single rigid housing, effectively eliminating optical axis alignment issues. Ideal for high-speed counting, label detection, and edge guiding, our sensors offer a specialized solution for packaging lines and conveyor systems. Experience the perfect synergy of micro-precision detection and industrial-grade durability.
Certification
We have passed TUV’s CE certification, ROHS certification, FDA certification, ETL CSA certification, and comply with European and American standards.
What Engineers Say About Our Fork Sensors
From high-speed label gap detection to precision part counting, our slot photoelectric sensors are the industrial standard for reliability and ease of installation.
"The biggest headache with through-beam sensors is alignment. Switching to the XSZ U-shaped Slot Sensor saved us hours of setup time. Because the transmitter and receiver are permanently aligned in the metal frame, we just mount it once and it works perfectly, even on vibration-heavy conveyor lines."
"Detecting transparent labels on clear backing was a nightmare until we tried the XSZ infrared fork sensor. The high-sensitivity potentiometer allowed us to calibrate the exact threshold. It handles our 5,000 label-per-hour speed without missing a single gap. Truly impressed with the signal stability."
"We integrated these 30mm slot sensors into our electronics assembly robots for part presence detection. The microsecond response time is essential for our high-frequency pick-and-place cycles. The compact design fits into tight spaces where traditional sensors fail. Great value compared to high-priced Japanese brands."
