Zhejiang Xinsenzheng Automation Co., Ltd.

Logistics & Automation Systems

Industrial Photoelectric Sensor Manufacturer

Get precise object detection solutions directly from the source. Engineered for packaging, logistics, and automation systems, our sensors deliver reliable performance for long-distance sensing and complex environments.

  • <1ms Fast Response: Engineered for high-speed counting and positioning. Ideal for fast-moving conveyor belts and automated assembly lines.
  • IP67 & Light Immunity: Waterproof housing with advanced ambient light immunity. Ensures stable operation under strong sunlight, dust, or oil mist.
  • Universal Replacement: Standard mounting dimensions with NPN/PNP output. A cost-effective drop-in replacement for major brands like Omron and Sick.
Photoelectric Sensor Operating in Factory
<1ms Response High-Speed Sensing
IP67 Rated Dust & Water Proof

High-Performance Photoelectric Sensors: Advanced Optical Detection

Our photoelectric sensors utilize cutting-edge infrared, laser, and polarized light technology to deliver unparalleled non-contact object detection. Designed for the most demanding automation environments, these sensors provide long-range sensing, rapid response times, and exceptional immunity to ambient light interference.

Sensing Modes & Industry Applications

Sensor Type Detection Principle Best Use Case
Through-Beam Separate transmitter and receiver for maximum range Long Range Ideal for conveyor counting and perimeter security up to 100m.
Retro-Reflective Light bounces off a reflector back to the sensor Polarized Detecting transparent objects (glass/PET) and shiny surfaces in logistics.
Diffuse-Reflective The target object itself acts as the reflector Space Saving Single-unit installation for presence sensing and part counting.
Background Suppression Ignores backgrounds regardless of color or material High Precision Sensing dark objects against bright backgrounds in electronics assembly.

Technical Specifications (Industrial Grade)

Parameter Specification Parameter Specification
Sensing Distance 10mm up to 100m (Mode dependent) Response Time < 0.5ms (High-speed pulse)
Supply Voltage 10 - 30V DC / 24 - 240V AC Output Type PNP/NPN, NO/NC, IO-Link
Light Source Red, Infrared, or Class 1 Laser Ambient Light Immunity Up to 10,000 Lux (Sunlight resistant)
Housing Material PBT Plastic or SUS316L Stainless Protection Rating IP67 / IP69K (Washdown rated)

Core Advantages of Our Optical Sensors

🚀 Ultra-Fast Response

Engineered for high-speed production lines. Our sensors handle thousands of cycles per minute, ensuring no data loss in rapid-sorting applications.

📡 Long-Distance Detection

Unlike inductive or capacitive sensors, photoelectric technology allows for detection from several meters away, keeping sensors safe from mechanical impact.

🔍 Precision Targeting

Utilizing laser beam technology, our sensors can detect minute objects as small as 0.1mm, perfect for semiconductor and medical device inspections.

🌦️ Rugged IP69K Durability

Designed for the food and beverage industry, our sensors withstand high-pressure steam cleaning and aggressive chemical washdowns.

💡 Intelligent IO-Link Integration

Future-proof your plant with digital communication. Monitor sensor health, change parameters remotely, and reduce downtime with predictive maintenance.

🌈 Color & Contrast Mastery

Advanced RGB sensors allow for precise mark detection and color sorting, even on challenging metallic or curved surfaces.

Optimize Your Automation Today

Not sure which sensing mode fits your application? Our optical specialists offer free technical audits.

Request a Technical Quote

High quality photoelectric sensor products

Experience superior detection stability with our comprehensive range of optical sensors. Designed for non-contact detection of metals, plastics, and liquids, our sensors offer rapid response times and adjustable sensitivity.

SZ Series Sensor

SZ Series M18 Industrial Cylindrical Photoelectric Sensor

Model: SZ-18 Series Ideal for packaging machinery, conveyor belt counting, and automated production lines.
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E3Z Series Sensor

E3Z Series Square Industrial Photoelectric Sensor

Model: E3Z Series Compact design and excellent electromagnetic interference resistance performance.
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E3FA Series Sensor

E3FA Series M18 Industrial Cylindrical Photoelectric Sensor

Model: E3FA Series Sturdy IP67/IP69K waterproof casing, suitable for high-speed food and beverage processing.
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SZ Series Sensor

E3F1 Series M18

Model: E3F1 Series Ideal for packaging machinery, conveyor belt counting, and automated production lines.
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E3Z Series Sensor

SZ-GY Series Square

Model: SZ-GY Series Ideal for long-distance sensing, perfect for automated storage, logistics sorting, and heavy-duty industrial processing.
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E3FA Series Sensor

E3K100 Remote

Model: E3K100 Series Ideal for vehicle detection, automated gate systems, parking barriers, and heavy industrial conveyor control.
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Your trusted Chinese optoelectronic sensor manufacturer

Delivering industrial-grade precision, factory-direct pricing, and global support since 2015.

Factory Direct & Custom Engineering

Our R&D team specializes in advanced optical lens design and circuit algorithms to ensure superior immunity against ambient light and electromagnetic interference. We offer flexible customization for sensing ranges, output modes (NPN/PNP), cable lengths, and connector types (M8/M12/Pigtail) to perfectly integrate with your specific automation lines.

✅Support OEM/ODM

Rigorous Quality Control Standards

Every photoelectric sensor undergoes strict testing protocols, including beam alignment verification, sensing distance calibration, and IP67 waterproof immersion before shipment. We strictly enforce ISO 9001 standards to guarantee durability against vibration, dust accumulation, and temperature fluctuations in harsh industrial environments.

✅100% Tested & < 0.1% Defect Rate

Comprehensive Sensor Portfolio

Why source from multiple vendors? We offer a vast array of industrial sensors, including Photoelectric, Proximity, and Ultrasonic models, covering 99% of automation needs. Beyond our extensive standard inventory, we specialize in solving unique challenges. Whether you need custom housing dimensions, specific detecting distances, or specialized output logic, our engineers deliver personalized solutions that perfectly fit your machine design.

Free Sample & Custom Prototype Program

Unsure which sensor fits your application? Test our standard models or request a fully customized solution to validate performance in your real-world environment before bulk ordering.

Step 1: Submit Requirements

Tell us what you need to detect (e.g., clear glass, black rubber, or metal). Choose from our vast catalog of Through-beam, Retro-reflective, and Diffuse sensors, or describe a unique challenge for a custom-engineered solution.

Step 2: Same-Day Dispatch

For standard items, we ship within 24 hours from our massive inventory. For custom requests, our R&D team offers rapid prototyping services to get a test unit in your hands as quickly as possible.

Step 3: On-Site Validation

Install the sensor on your machine to verify sensing distance, response speed, and anti-interference capability. Ensure the solution works perfectly in your specific operating conditions with zero risk.

XSZ sensor video display

XSZ SENSING TECHNOLOGY

Premier Manufacturer of High-Precision Photoelectric Sensors

Since 2015, XSZ has been at the forefront of optical detection innovation. From our 5,000m² specialized manufacturing center, we produce industrial-grade Photoelectric Sensors—including Through-beam, Retro-reflective, and Diffuse-reflective models. By integrating advanced infrared and laser technologies, we provide global automation partners with "Factory-Direct" solutions that combine micron-level precision with rugged durability for the most challenging environments.

60+ Global Export Partners
8M+ Optical Units Per Year
5,000m² Smart Manufacturing Base
IP69K Highest Protection Grade
XSZ Photoelectric Sensor Advanced Production Facility
ISO9001, CE, RoHS, REACH Certified

Certification

We have passed TUV’s CE certification, ROHS certification, FDA certification, ETL CSA certification, and comply with European and American standards.

Global Optical Sensing Excellence

Industrial Feedback & Success

Reliable detection is the heartbeat of smart manufacturing. See why leading engineers trust our photoelectric sensors for their most critical applications.

★★★★★

"The **M18 through-beam sensors** from XSZ are a game-changer for our logistics hub. We needed stable detection over a **20-meter span**, and these sensors deliver consistent signals despite heavy dust. The **optical alignment** was incredibly easy thanks to the bright visible red light beam."

DL
Dieter L. ✔ Verified Buyer Logistics Infrastructure Lead, Germany
★★★★★

"We've struggled with detecting **transparent PET bottles** for years until we tried their **polarized retro-reflective sensors**. They effectively eliminate false triggers from shiny surfaces. Plus, the **IP69K rating** has held up perfectly against our daily high-pressure chemical washdowns."

AW
Amanda W. ✔ Verified Buyer Plant Manager, USA Food & Bev
★★★★★

"As an OEM, precision is everything. We integrated their **laser background suppression sensors** into our SMT machines to detect dark components on green PCBs. The **0.5ms response time** and micron-level accuracy have significantly boosted our production yield."

HJ
Hyun-Jun P. ✔ Verified Buyer Senior Robotics Engineer, South Korea

Frequently Asked Questions: Photoelectric Sensors

What is the main difference between Through-Beam, Retro-reflective, and Diffuse sensors?
Through-Beam uses a separate transmitter and receiver and offers the longest range. Retro-reflective uses a single unit and a reflector, making it easier to wire while maintaining decent range. Diffuse-reflective sensors bounce light directly off the object, requiring only one device and no reflector, which is perfect for tight spaces but has a shorter sensing distance.
How do I choose between Red Light and Infrared light sources?
Visible Red Light is easier to align because you can see the beam on the target. It is ideal for most general-purpose applications. Infrared (IR) Light is invisible and has higher power, which allows it to penetrate dust, fog, or industrial grease more effectively, making it the better choice for harsh, dirty environments.
Can these sensors detect transparent objects like glass or PET bottles?
Yes, but you should use a Polarized Retro-reflective sensor specifically designed for clear objects. Standard sensors may see through the glass, but polarized versions use special filters to detect the change in light rotation caused by transparent materials, ensuring a stable trigger every time.
What is Background Suppression (BGS) and why is it useful?
Background Suppression allows the sensor to detect an object within a specific range while completely ignoring everything behind it, regardless of how reflective the background is. This is crucial when you need to detect a dark object sitting on a bright metal conveyor belt.
How do your sensors handle ambient light or bright sunlight?
Our sensors feature advanced Optical Interference Suppression. By using modulated light pulses, the receiver only recognizes light at a specific frequency from its own transmitter, effectively ignoring ambient light up to 10,000 Lux, including overhead factory LED lighting and sunlight.
Are these sensors wash-down safe for food and beverage lines?
Absolutely. We offer models with IP67, IP68, and IP69K ratings. These units are housed in SUS316L stainless steel or high-grade PBT plastic and are hermetically sealed to withstand high-pressure water jets and aggressive cleaning detergents used in food-grade facilities.
What output types are supported for modern PLC integration?
We provide standard PNP or NPN (normally open/closed) outputs. For Industry 4.0 applications, many of our series now support IO-Link, which provides real-time diagnostics, remote parameter setting, and predictive maintenance data to your control system.
Do photoelectric sensors require frequent cleaning?
While photoelectric sensors depend on a clear optical path, our High-Gain models are designed to operate even with 10-20% lens contamination. However, for maximum reliability, we recommend a simple wipe of the lens with a damp cloth during scheduled machine maintenance.
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