Optical Sensors
For maximum flexibility.
Optical sensors use light in all its forms to fulfill demanding detection tasks. At SCHMACHTL, we offer you a comprehensive product portfolio with reliable and powerful solutions. To be prepared for your different surfaces, object sizes, and colors, our range includes a variety of operating principles, such as through-beam sensors, retro-reflective sensors, or diffuse reflection sensors. Take the first step towards a smarter future now - together with us at SCHMACHTL!
Disposable Light Barriers
- Combination of separate transmitter and receiver devices.
- High functional reserves and ranges up to 340 m.
- Quick and intuitive adjustment of transmitter power as well as receiver sensitivity via potentiometers (model-dependent).
- Housing available in plastic, metal, or stainless steel.
- Also available in cylindrical form.
- Special versions in wash-down or hygiene design and ECOLAB certification, specifically for the food industry.
- Interface IO-Link (model-dependent).
- Connection options with circular connectors M8 or M12; or cable with or without circular connectors.
Highlight
Leuze LS25CI: The perfect retro-reflective photoelectric sensor for the packaging industry.
In the packaging industry, where products are often wrapped in various types of films, reliable position detection is crucial. It becomes particularly challenging with opaque or metallized films that block light. For these challenges, we offer you the Leuze LS25CI, the most powerful retro-reflective photoelectric sensor on the market. Thanks to its powerful yet eye-safe infrared light, it can effortlessly penetrate even metallized films and dark materials. By setting high sensitivity, it can detect even individual transparent layers.
Your Benefits:
- Reliable penetration of any packaging films.
- Intuitive and fast adjustment of the transmission power via potentiometer.
- Protection classes IP67 and IP69K.
- ECOLAB certified - specially designed for the food industry.
- Stronger transmitter variant LS25CI.XX super power, which requires no adjustment, for metallized and highly absorbent films.
Reflection Light Barriers
Standard variants:
- Range up to 24 m
Models optimized for transparent objects:
- Ranges up to 6 m
Models optimized for reflective objects:
- Ranges up to 16 m
- Transmitter and receiver in one device with opposing reflector.
- Special sensors for transparent media, film-wrapped pallets, or highly accurate positioning.
- Quick and intuitive adjustment of the transmitter power via potentiometer, or Teach button (depending on the model).
- Housing made of plastic, metal, or stainless steel.
- Also available in a cylindrical design.
- Variants with small or long light spot or light band.
- Special versions in Wash-Down or hygiene design and ECOLAB certification, especially for the food industry.
- Interface IO-Link (depending on the model).
- Connection optionally with M8 or M12 circular connector; or cable with or without circular connector.
Light sensor
Light sensor with background suppression:
- Transmitter and receiver in one housing: Detection is done by capturing the light reflected from the object.
- Ranges up to 3 m.
- Reliable detection of objects while simultaneously suppressing the background.
- Intuitive adjustment of the sensing range via spindle and teach button.
- Standard variants (LED and laser).
- Variants with extra large or small light spots.
- Models optimized for highly glossy and polished objects.
Energy-efficient light sensors:
- Detection of objects by capturing scattered light; Ranges up to 1 m.
Dynamic reference sensors:
- Object-independent detection by learning the background; Ranges up to 450 mm.
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Power PinPoint LED - For precise process reliability.
Light sensors and light barriers with Power PinPoint LED rely on an innovative light source technology. The newly developed light-emitting diode generates a light spot through the sensor's optical system, maintaining its size, shape, and homogeneity throughout the sensor's entire working area.
- Detection of objects in front of a background
- Different special versions
- Types with visible red light or infrared
- Models with IO-Link for format changeover
- Transmitter and receiver in one housing: Detection is done by capturing the light reflected by the object
Your Benefits:
- Easy commissioning of sensors for object detection.
- Perfect object tracking with low edge errors due to reliable and precise start and end detection.
- Better detection results in applications with small reflectors and long distances due to higher functional reserves in retro-reflective photoelectric sensors.
- Higher detection reliability in through-beam sensors when multiple sensors are operated in parallel, thanks to the compact light beam with low divergence and improved stray light suppression.
Sensors for Ex applications.
- For use in potentially explosive atmospheres.
- Certified according to ATEX and IECEx directives.
- Model with type examination certificates for Zone 2 and 22 as well as for Zone 1 and 21.
Available as:
- Disposable light barriers
- Reflection light barriers
- Light sensors with background suppression
Our Downloads for you at a glance.
SCHMACHTL Services.
Our SCHMACHTL "S" stands for the solution path that we define together with you and walk in a partnership collaboration with you. We support you with the following services:
Technical Consulting & Planning
Our experts are available to assist you online, by phone, or in person to find the best solution for you.
Product Demo On-Site
Convince yourself - We offer you live demos on-site and the opportunity to test our products for a period of time.
Engineering
Our technicians develop individual solutions for you - from CAD design to sophisticated concepts.
Installation & Commissioning
Our experts ensure a professional installation and smooth commissioning of your systems.
Training and Workshops
To ensure you can start optimally, we offer training sessions from basic to expert level, tailored to your needs.
Custom Packaging
We tailor our product packaging individually to meet your requirements.
Storage Stock
Through our storage stock, we ensure a safe and fast supply of your products.
Custom Packaging and Delivery
We offer customized packaging and delivery solutions tailored to your specific needs.
Technical Support
Our after-sales team is available at all times to assist you with technical questions and challenges.

Our SCHMACHTL Automation Team
works with enthusiasm for you.
We are happy to advise you!
With competence, enthusiasm, and strong advisory skills, we accompany you to success. Schedule your personal consultation appointment. We look forward to your inquiry!
Günther Kesler
Martin Scheuchenpflug
Mario Steinbichler
Contact us now via the form.
We
deliver
value.
Comprehensive services - from technical consulting to maintenance - ensure you optimal support in every project phase. Here you can find our SCHMACHTL services.
Our many years of experience and solid expertise guarantee you competent advice and tailor-made solutions.
We offer you a diverse selection of products and solutions for your individual needs.
With our regional presence, we are always close to you and quickly available for you.
We develop custom special solutions for you that are perfectly tailored to your requirements.
At SCHMACHTL, we hold our suppliers to the same high quality standards as we hold ourselves.