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Safety Light Curtains

Safety Light Curtains

Safety light curtains are an important safety device that provides effective protection for personnel and equipment and helps reduce accidents in the workplace. Safety light curtains consist of a transmitter and a receiver. The transmitter emits multiple light beams, and the receiver receives and detects whether the light beams are complete. When a person or object enters the range of the light curtain, the light beam will be blocked, triggering the safety system to stop operating or take other safety measures.
Safety light curtains are widely used in situations where a safe distance between personnel and machines is required, such as automated production lines, mechanical processing equipment, industrial robots, etc. It can effectively prevent accidents caused by misoperation or accidental contact with dangerous areas.
Please choose the safety light curtain that meets your needs
Our Safety Light Curtains at DADISICK are designed to prioritize workplace safety. These high-quality light curtains are tailored to meet various application needs, ensuring the protection of operators and equipment. Explore our range to find the perfect safety solution for your industrial environment.
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Safety Light Curtains

ModelDescription
QBT20-44-860-2BA|Security Light Curtain|DADISICKQBT20-44-860-2BA|Security Light Curtain|DADISICKQBT20-44-860-2BABeam spacing: 20mm
Number of optical axes: 44
Protection height: 860mm
Safety curtain outputs (OSSD): 2 PNP
QBT20-42-820-2BA|Laser Curtain Sensor|DADISICKQBT20-42-820-2BA|Laser Curtain Sensor|DADISICKQBT20-42-820-2BABeam spacing: 20mm
Number of optical axes: 42
Protection height: 820mm
Safety curtain outputs (OSSD): 2 PNP
QBT20-40-780-2BA|Safety Light Curtain Sensor|DADISICKQBT20-40-780-2BA|Safety Light Curtain Sensor|DADISICKQBT20-40-780-2BABeam spacing: 20mm
Number of optical axes: 40
Protection height: 780mm
Safety curtain outputs (OSSD): 2 PNP
QBT20-38-740-2BA|Area Sensor|DADISICKQBT20-38-740-2BA|Area Sensor|DADISICKQBT20-38-740-2BABeam spacing: 20mm
Number of optical axes: 38
Protection height: 740mm
Safety curtain outputs (OSSD): 2 PNP
QBT20-36-700-2BA|Safety Curtain|DADISICKQBT20-36-700-2BA|Safety Curtain|DADISICKQBT20-36-700-2BABeam spacing: 20mm
Number of optical axes: 36
Protection height: 700mm
Safety curtain outputs (OSSD): 2 PNP
QBT20-34-660-2BA|Security Light Sensor|DADISICKQBT20-34-660-2BA|Security Light Sensor|DADISICKQBT20-34-660-2BABeam spacing: 20mm
Number of optical axes: 34
Protection height: 660mm
Safety curtain outputs (OSSD): 2 PNP
QBT20-32-620-2BA|Light Curtain Sensor|DADISICKQBT20-32-620-2BA|Light Curtain Sensor|DADISICKQBT20-32-620-2BABeam spacing: 20mm
Number of optical axes: 32
Protection height: 620mm
Safety curtain outputs (OSSD): 2 PNP
QBT20-30-580-2BA|Light Barrier|DADISICKQBT20-30-580-2BA|Light Barrier|DADISICKQBT20-30-580-2BABeam spacing: 20mm
Number of optical axes: 30
Protection height: 580mm
Safety curtain outputs (OSSD): 2 PNP
QBT20-28-540-2BA|Safety Grating|DADISICKQBT20-28-540-2BA|Safety Grating|DADISICKQBT20-28-540-2BABeam spacing: 20mm
Number of optical axes: 28
Protection height: 540mm
Safety curtain outputs (OSSD): 2 PNP
QBT20-26-500-2BA|Safety-Light-Curtain|DADISICKQBT20-26-500-2BA|Safety-Light-Curtain|DADISICKQBT20-26-500-2BABeam spacing: 20mm
Number of optical axes: 26
Protection height: 500mm
Safety curtain outputs (OSSD): 2 PNP
QBT20-24-460-2BA|Safety Light Curtain|DADISICKQBT20-24-460-2BA|Safety Light Curtain|DADISICKQBT20-24-460-2BABeam spacing: 20mm
Number of optical axes: 24
Protection height: 460mm
Safety curtain outputs (OSSD): 2 PNP
QBT20-22-420-2BA|Safety Light Curtain|DADISICKQBT20-22-420-2BA|Safety Light Curtain|DADISICKQBT20-22-420-2BABeam spacing: 20mm
Number of optical axes: 22
Protection height: 420mm
Safety curtain outputs (OSSD): 2 PNP
QBT20-20-380-2BA|Small Safety Light Curtain|DADISICKQBT20-20-380-2BA|Small Safety Light Curtain|DADISICKQBT20-20-380-2BABeam spacing: 20mm
Number of optical axes: 20
Protection height: 380mm
Safety curtain outputs (OSSD): 2 PNP
QBT20-18-340-2BA|Infrared Safety Light Curtain|DADISICKQBT20-18-340-2BA|Infrared Safety Light Curtain|DADISICKQBT20-18-340-2BABeam spacing: 20mm
Number of optical axes: 18
Protection height: 340mm
Safety curtain outputs (OSSD): 2 PNP
QBT20-16-300-2BA|Safety Barrier Sensor|DADISICKQBT20-16-300-2BA|Safety Barrier Sensor|DADISICKQBT20-16-300-2BABeam spacing: 20mm
Number of optical axes: 16
Protection height: 300mm
Safety curtain outputs (OSSD): 2 PNP
QBT20-14-260-2BA|Machine Safety Curtains|DADISICKQBT20-14-260-2BA|Machine Safety Curtains|DADISICKQBT20-14-260-2BABeam spacing: 20mm
Number of optical axes: 14
Protection height: 260mm
Safety curtain outputs (OSSD): 2 PNP
QBT20-12-220-2BA|Machine Light Guards|DADISICKQBT20-12-220-2BA|Machine Light Guards|DADISICKQBT20-12-220-2BABeam spacing: 20mm
Number of optical axes: 12
Protection height: 220mm
Safety curtain outputs (OSSD): 2 PNP
QBT20-10-180-2BA|Light Guards for Press Brakes|DADISICKQBT20-10-180-2BA|Light Guards for Press Brakes|DADISICKQBT20-10-180-2BABeam spacing: 20mm
Number of optical axes: 10
Protection height: 180mm
Safety curtain outputs (OSSD): 2 PNP
QBT20-08-140-2BA|Light Curtains Machine Guarding|DADISICKQBT20-08-140-2BA|Light Curtains Machine Guarding|DADISICKQBT20-08-140-2BABeam spacing: 20mm
Number of optical axes: 8
Protection height: 140mm
Safety curtain outputs (OSSD): 2 PNP
QBT20-06-100-2BA|Light Barriers|DADISICKQBT20-06-100-2BA|Light Barriers|DADISICKQBT20-06-100-2BABeam spacing: 20mm
Number of optical axes: 6
Protection height: 100mm
Safety curtain outputs (OSSD): 2 PNP
Understanding Safety Light Curtains
Safety Light Curtains, also known as light guards or optical guards, are optoelectronic devices used to safeguard personnel and machinery in industrial environments. These curtains consist of an array of light beams that create an invisible screen or barrier. When an object or person breaches this screen, the Safety Light Curtain sends a signal to the machinery to stop, preventing potential accidents.
Safety light curtain Solutions
Safety light curtain Solutions
Area Safety Solutions
Area Safety Solutions
Multi-Sided Access Protection Light Curtain Solutions
Multi-Sided Access Protection Light Curtain Solutions
How Safety Light Curtains Work
Safety Light Curtains operate on a simple yet effective principle. They emit an array of parallel beams of light across the guarded area. A transmitter unit sends out the beams, while a receiver unit detects them. When an object or person interrupts these beams, the receiver unit signals the machinery control system to halt its operation immediately.
Advantages of safety light curtains
A safety light curtain is a sensing device designed to protect personnelfrom injury.These devices are most commonly used infactory automation for machine safeguarding.Unlike typical photoelectric sensors, safety light curtains monitor themselvesthrough redundant signals and will stop the hazard (ex. machine) if an internal fault is detected.

Advantage 1: Multi-angle safety light curtains can be customized according to requirements

Special-shaped light curtains with different angles such as L-shape/U-shape can be customized. We have professional optical technology engineers and production factories, which can provide targeted solutions according to your project needs and produce products that meet the requirements.

Advantage 2: Reliable safety performance

The safety light curtain has perfect self-inspection function: when the safety sensor fails, it is guaranteed not to send wrong signals to the controlled electrical appliances; strong anti-interference ability: the system has good performance on electromagnetic signals, strobe lights, welding arcs and surrounding light sources Excellent anti-interference ability; short response time (≤15ms), high safety and reliability; conforms to the safety level of the International Electrotechnical Society IEC61496-1/2 standard, and CE certification of TUV.

Advantage 3: Easy to install and easy to use

Thanks to the slim design and practical mounting bracket, the installation, commissioning and calibration of the safety light curtain are very easy, the wiring is simple, and the appearance is beautiful. Light curtains are also more flexible than safety fences or hardware guards and require no effort to open/close. This makes safety light curtains ideal for securing machines that require frequent access.

Frequently Asked Questions About Safety Light Curtains
Safety is a top priority in any industrial setting. Safety Light Curtains have emerged as a vital component in maintaining a secure work environment. These innovative devices are designed to detect the presence of objects or personnel within their coverage area and respond by ensuring the immediate cessation of machinery operations.
Are light curtains easy to install?

The DADISICK series of light curtains offers a variety of options. The high-power DADISICK series includes a variety of pre-assembled mounting brackets and built-in alignment indicators. The compact design of the DADISICK series allows installation in tight spaces.

Three wiring systems are available. Our optical sync and single-wire systems reduce wiring, while wired sync provides additional functionality when needed.

Will the machine stop if the light intensity decreases?

Traditional light curtains require regular maintenance to prevent downtime and other problems caused by reduced received light intensity. This dip can be caused by misalignment (due to shock or vibration) or by oil or dirt. Either condition can reduce the amount of light received enough to trigger the light curtain to stop the machine.

The robust design of the DADISICK series of light curtains prevents misalignment while ensuring stable detection even when oil or dust is stuck on the lens. Not only does this help prevent unplanned downtime, but it also helps avoid frequent maintenance.

Ask DADISICK

Hello! You've come to the right place to get answers about our products and solutions.In addition to DADISICK's own range of over 2000 products, we also offer a wide range of branded replacement products to meet your specific requirements.Our sales engineers are ready to provide comprehensive support at all levels of the business, from the design and research phase to model selection, on-site guidance and production line operation after product adoption. Use the form below to ask us about your needs and we will contact you as soon as possible .
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