Safety Light Curtain Sensor
- Precise personnel protection against machine hazards.
- 10 years of manufacturing experience ensures superior product quality.
- Easy installation and maintenance minimize downtime and maximize efficiency.
- Available in Type 2 and Type 4 safety ratings to meet your diverse needs.
Our products
Safety light curtain sensors, also known as safety light grids, infrared light curtains, safety light barriers and so on, are used to protect people from dangerous machines. Lorentzzi® offers a variety of safety light curtain sensors with optical axis spacing of 10 mm (for finger protection), 20 mm (for palm protection), and 40 mm (for arm protection), and protection heights ranging from 60 mm to a maximum of 2000 mm. Our safety light curtains are highly competitively priced and of superior quality.
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CE Safety Type (Category) 4 certified, Available with dual PNP...
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200 mm protection height, Transistor PNP, NPN or relay output...
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Protection height 360 mm, Less than 20 ms fast response...
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Protection height 520 mm, can be customized, PNP, NPN, relay...
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Ultra-small, protection height 120 mm, Designed for small machine protection,...
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Protection height 680mm, beam distance can be 10mm, 20mm or...
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Protection height 920mm, beam distance can be 10mm, 20mm or...
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1000 mm protection height, Output is available in thyristor or...
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Protection height 1160mm, beam distance can be 10mm, 20mm or...
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Protection height 1240mm, beam distance can be 10mm, 20mm or...
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Safety light curtain sensor applications
Safety light curtain plays a very important role in safe production due to its excellent performance. It can protect workers from the harm of dangerous machines. Safety light curtain can be applied in the following fields.
Mechanical automation
In automated production lines, safety light barriers are used to protect operators from mechanical arms, conveyor belts, and other automated equipment. For example, when an operator accidentally approaches a running mechanical arm, the safety light barrier will detect and immediately stop the operation of the machine to avoid accidents.
Packaging & assembly industry
In packaging and assembly lines, safety light barriers can be used to ensure that workers operate in a safe area and prevent them from contacting dangerous mechanical parts. The safety light barrier forms a “light wall” that immediately stops the relevant mechanical operation once an object passes through.
Material handling
In automated warehouses and logistics centers, safety light barriers are often used to monitor the path area of heavy equipment such as forklifts and automatic transport vehicles. This helps prevent collisions with people or other equipment.
Hazardous area isolation
In chemical plants, power stations, and other places where chemical hazards or high voltage electricity may exist, safety light barriers are used to isolate high-risk areas. They ensure that workers can enter these areas only under safe conditions.
Automatic doors & access control systems
Safety light barriers are also widely used in automatic door control systems. For example, if an automatic door detects a person or object when closing, it will immediately stop the closing process to prevent pinching.
Robot workstation
In the robot operation area, safety light barriers are used to ensure that the robot works in a safe operating environment and protect the surrounding personnel from the risks that may be caused by the robot operation.
What is your application?
Why choose Lorentzzi as your supplier?
Better product quality
Lorentzzi® brand safety light curtains are manufactured with high-quality components and undergo rigorous aging tests before leaving the factory, providing superior protection for your workers from hazardous machinery. Ensuring the safe use of your personnel and equipment is our top priority.
Customization supported
If you are looking for a highly customized safety light curtain supplier in China, Lorentzzi® is your best choice. Our professional engineering team is ready to serve you, and we can meet your needs, whether you require customized safety light curtain length, optical axis spacing, housing, or internal PCB.
Ready to ship
Our factory has a large warehouse and maintains a reasonable inventory level for each type of safety light curtain. Our goal is to meet the requirements of urgent customer orders, so that your machines do not have to be downtimed for replacement parts.
Frequently asked questions
What is a safety light curtain sensor?
A safety light curtain sensor (also known as a safety light barrier, safety light grid, or simply safety light curtain) is a protective device used to detect objects or personnel entering hazardous areas of machinery or equipment. It consists of a transmitter and receiver with side-by-side optical axes forming an invisible infrared beam plane. When an object enters this plane, the light beam is blocked, triggering a corresponding output that can be used to stop machine operation or issue an alarm, thus helping to prevent accidents and ensure operator safety.
In short, you can think of a safety light curtain as consisting of multiple through-beam photoelectric sensors connected in series. If the light from one sensor is blocked, all sensors will fail. This triggers the output of the entire safety light curtain, which can be used to control equipment shutdown or issue an alarm.
How many types of safety light curtain sensors?
Safety light curtain sensors are categorized into two types based on their protection levels: Type 2 and Type 4. For more details on these classifications, refer to our article: Safety Light Curtain Types: Type 2 and Type 4 Differences.
In addition, Lorentzzi® brand safety light curtain sensors can be further classified according to the body parts they protect:
- Finger protection type: designed with a beam spacing of 10 mm to protect fingers.
- Palm protection type: designed with a beam spacing of 20 mm to protect the hands.
- Body protection type: built with a beam spacing of 40 mm to protect larger body parts.
Global safety light curtain supplier
There are many safety light curtain suppliers, including our own brand Lorentzzi (Chinese safety light curtain supplier, our products have accurate detection and high protection level, and our products are more price competitive), Omron, Banner, Keyence, IFM, Pepperl+Fuchs, Rockwell, Pilz, Turk, Autonics, etc.
More information about the safety light curtain manufacturers, please read our article: Safety Light Curtain Manufacturers: 10 Best Vendors In China.
How to choose a safety light curtain sensor?
Knowing how to choose a suitable safety light curtain is a very vital lesson before purchasing and using it. You can refer to this instruction article: Safety Light Curtain: 5 Things You Must Know In 2023.
Is the output of the safety light curtain sensor necessarily a normally closed output?
Yes, that’s right. Normally closed contacts are safer than normally open circuits, and generally you should choose a safety light grid with dual OSSD outputs. The reason is that if one of the OSSDs fails, the other can continue to work to ensure the safety of the user.
How to wire a safety light curtain?
Different manufacturers produced safety light curtains wiring methods might be different, but the wiring method is nearly the same, you can see the below our safety light curtain wiring diagram, if you still have difficulty to wire it correctly, please contact us to get instant support.
Advantages of Lorentzzi brand safety light curtain
Lorentzzi® safety light curtains are of high quality, affordable, with high detection accuracy, fast response time and an extra-long two-year warranty. In addition, we can ship them to any corner of the world via UPS, FedEx or DHL.
Lorentzzi global partners
