Light curtain

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Light curtains use a non-visible screen of infrared light to protect personnel from injury and machines from damage by guarding points of operation, access areas and perimeters. The interruption of a single light beam will signal an emergency stop for a machine in operation.

Applications

Light curtains are installed on potentially dangerous machines, robots and other automated systems where it is possible to access a dangerous area. Light curtains are found on automated machines such as on large hydraulic presses or welding robots where personnel could potentially interfere with the machines moving parts. Light curtains are also used to protect personnel from accessing dangerous electrical circuitry on assembly lines.

Technologies

Light curtains are sold in pairs that include a transmitter and receiver. The transmitter emits the infrared light beams and the receiver consists of a certain number of photoelectric sensors for each light beam emitted. When an object disturbs one of these light beams, a signal is sent to stop the machine.
Light curtains are usually paired with safety relays which control certain parameters such as, signal strength for long range or short range detection.

How to choose

In order to have the light curtain function properly on your machine or automated assembly line, make sure to specify the level of protection. There are two types of light curtains; Type 2 and Type 4. Type 2 being lower cost with fewer features compared to Type 4 which has a higher resolutions and scanning range. Make sure to specify your safety requirements and the application you would like to have your light curtain installed.

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319 Industrial products | 63 Companies
 
 
EMX Industries Inc.
Through-beam photoelectric sensor  P 40 Series EMX Industries Inc.

THRU BEAM PHOTOELECTRIC SENSORS P 40 FOR PANEL MOUNTING
· ...

Through-beam photoelectric sensor  P 41 Series EMX Industries Inc.

THRU BEAM PHOTOELECTRIC SENSORS P 41 FOR EXTERNAL WALL MOUNTING
· ...

Through-beam photoelectric sensor  P 44 Series EMX Industries Inc.

THRU BEAM PHOTOELECTRIC SENSORS WITH BATTERY SUPPLY P 44 FOR EXTERNAL ...

Optex FA
Cylindrical through-beam photoelectric sensor  20 m, IP67 | C2 series Optex FA

・Cost effective general purpose cylinder type sensor.
・Two ...

Through-beam photoelectric sensor  IP69K, 30 m Optex FA

Stainless housing photoelectric sensor Z-M series
Through beam, Retro reflective, Diffuse, BGS type in IP69K housing.
Good ...

Through-beam photoelectric sensor, block type  max. 500 mm, IP 67 | E series Optex FA

・Super Side-sense Type projects the beam from the 5mm(0.19 inch) of ...

BERNSTEIN AG
Through-beam photoelectric sensor  M12 - M30 BERNSTEIN AG

Specifications

Through-beam sensors, diffuse-reflection sensor, retro-reflective sensors for the most diverse range of applications
M18 series with ...

EGE
Ultrasonic through-beam sensor  150 Hz, R. 300 mm, IP67 EGE

EGE's ARK series of robust ultrasonic barriers, which consist of a sender and a receiver unit measuring 30 x 20 x 12 mm, ensure that objects are reliably detected in rugged environments. ARK sensors ...

PIL Sensoren
Ultrasonic through-beam sensor  P48 series PIL Sensoren

The series P48 ultrasonic through scan sensors ...

SICK
Automation light curtain  max. 50 mm, IP65 | MLG Standard SICK

At a glance

:Two analog outputs: voltage to current
Easy-to-use setup software for customized applications with new features
New teach algorithm for optimal sensitivity settings in difficult applications, such as measuring translucent objects
Software tools, such as height measurement, zoning, hole detection, and presence control makes implementation ...

Automation light curtain  max. 4 mm, IP65 | FLG SICK

At a glance
Dynamic or static operating mode, switchable
Simple adjustment
Adjustable sensitivity
Adjustable pushbutton lock
Rugged metal housing
Adjustable pulse lengthening
Switchable NO/NC

Your benefits
Simple installation ...

Automation light curtain  max. 2.8 m, IP54 | VLC100 SICK

At a glance
Sensing range up to 2.8 m
Resolution 6 mm up to 18 mm
One device only: integrated sender and receiver
Intuitive one-button operation
Automatic alignment
...

ReeR U.S.A.
Light curtain for perimeter protection of sensitive sites ReeR U.S.A.

OPTOELECTRONIC SAFETY BARRIERS TYPE 4

Optoelectronic Safety Barrier for the protection of workers exposed to risks arising from the use of dangerous machines, in situation where the MUTING function is necessary.

Technical Specifications:

- ...

Retro reflective light curtain  6 m, 24 V | JANUS J TRX ReeR U.S.A.

TYPE 4 SAFETY LIGHT GRID WITH RETRO-REFLECTOR

Type 4 safety light grid for ...

Automation light curtain  24 V | METRON ReeR U.S.A.

Light curtains conceived for those industrial and automation applications in which object detection, measurement and recognition are necessary.
Depending on the number and position of the intercepted beams, Metron is able to provide the relevant information to a PC or PLC in real time. That is:

- Dimensional measurement
- Profile or shape ...

WENGLOR SENSORIC
Measuring light curtain  2000 mm WENGLOR SENSORIC

* 360° visible, two-color job display
* Error prevention during partial picking processes in shelves and storage locations
* ...

Retro reflective fiber optic light curtain  max. 540 mm WENGLOR SENSORIC

* for measuring tasks
* Resistant to high temperature
* Variable light emitting slot

Glass Fibre Optic Light Curtains function ...

Safety light curtain type 2  0.25 - 8 m WENGLOR SENSORIC

The slender Safety Light Curtains are combined with ...

CONTRINEX
Safety light curtain type 4: finger protection  30 mm | 1x00 series CONTRINEX

MAIN FEATURES
- Resolution: 30 mm
- Operating range: 0.25 ... 12 m
- Protective height: ...

Safety light curtain type 4: finger protection  30 mm | YBB-30S4-1x00 series CONTRINEX

MAIN FEATURES
- Resolution: 30 mm
- Operating range: 0.25 ... 12 m
- Protective height: ...

Cylindrical through-beam laser photoelectric sensor  50 m | 1180L series CONTRINEX

Compact laser sensors M18
Accurate detection of smallest targets (> 0.1 mm)
Accurate ...

Escort Memory Systems
Safety light curtain  300 - 1 800 mm | SG2-50 BASE Escort Memory Systems

The new SG2-50 BASE safety light curtains represent the natural evolution of the SF2 series. Models with controlled ...

Safety light curtain  300 - 1 800 mm | SG2-90 BASE Escort Memory Systems

The new SG2-90 BASE safety light curtains represent the natural evolution of the SF2 series. Models with controlled ...

Safety light curtain  300 - 1 500 mm | SF2-50 Escort Memory Systems

The SF2-50 safety light curtains series are available with ten standard heights ranging from ...

STI
Light curtain for perimeter protection of sensitive sites  10 m | F3SH-A STI

Can be front-mounted, top-mounted or back-mounted in series
Detection capability for finger protection (14 mm), hand protection (25 mm), horizontal ...

Safety light curtain STI

Omron Scientific Technologies, Inc. provides seven safety light curtain families to solve your ...

Safety light curtain type 2  max. 15 m (49 ft) | MP2100 STI

Resolution: 30 mm (1.18 in.)
Range: 15 m (49 ft.)
Protective ...

Baumer Electric AG
Measuring light curtain  6.5 m Baumer Electric AG

FCDM 012
(SpiderScan; 10 mm)
housing : 12xLx40 mm, metal
sensing distance max. : 4 m
response time (fastest version) : depending on number of beams
features : number of beams between 16 and 160, ...

Cylindrical through-beam photoelectric sensor  16 m Baumer Electric AG

FEAM 08
housing : 8x59 mm, metal
sensing distance max. : 2,5 m
response time (fastest ...

Through-beam photoelectric sensor, block type  20 m Baumer Electric AG

FEDK 14
housing :14,8x43x31 mm, plastic
sensing distance max. : 12 m
response time (fastest version) :< 1,2 ms
features : economy line, fix sensing distance, IP 67

FEDK ...

Tapeswitch
Light curtain for perimeter protection of sensitive sites  max. 30 m | GS Series Tapeswitch

Description
The Tapeswitch GS-120 Perimeter Guards are for low risk application. Applications for the GS0120 series guards include protecting hazardous areas such as automated work ...

Safety light curtain  GS -120, B-SERIES series Tapeswitch

The Hard-Guard Light Curtain is designed for harsh industrial applications. It is available in either a tough transparent acrylic housing or a rugged aluminum enclosure. Protected ...

Safety light curtain type 2  15 m | GS-120 series Tapeswitch

The GS-120 series, for low risk applications, per EN61496-1 (type 2). The GS-120 series have a flexible interface that is compatible with common safety relays units, ...

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