Ecer asks for your consent to use your personal data to:
Personalised advertising and content, advertising and content measurement, audience research and services development
Store and/or access information on a device
Your personal data will be processed and information from your device (cookies, unique identifiers, and other device data) may be stored by, accessed by and shared with 135 TCF vendor(s) and 65 ad partner(s), or used specifically by this site or app.
Some vendors may process your personal data on the basis of legitimate interest, which you can object to by do not consent. Contact our platform customer service, you can also withdraw your consent.
Your message must
be between 20-3,000 characters!
Submit Requirement
Thank You！
Your requirement has been sent. we will contact you quickly!
{"title":"Safety Light Curtain Sensors for Door Gap Protection and Personnel Safety","imgUrl":"https:\/\/img.chinax.com\/nimg\/fd\/04\/a2e7f05606d96ed10c2d6cb94ab1-200x200-1\/safety_light_curtain_sensors_for_door_gap_protection_and_personnel_safety.jpg","attrs":{"Function":"Blanking","Operating Current":"<50mA","Specification":"2000*21*15 mm","Sensing Distance":"8m"}}
{"title":"30ms Quick Response IP67 Waterproof Safety Light Curtain For Industrial High","imgUrl":"https:\/\/img.chinax.com\/nimg\/d2\/de\/8bc47c53fb3487bd37fa66151482-200x200-1\/30ms_quick_response_ip67_waterproof_safety_light_curtain_for_industrial_high_speed_doors.jpg","attrs":{"Brand Name":"JUTAI","Model Number":"CL20-8L","Certification":"CE","Place of Origin":"China"}}
{"title":"1500mm Length Blanking Infrared Light Curtain 8m Detecting Range Fast Door","imgUrl":"https:\/\/img.chinax.com\/nimg\/b3\/ec\/90b79d659bc6281b1d7eefd41894-200x200-1\/1500mm_length_blanking_infrared_light_curtain_8m_detecting_range_fast_door_sensor.jpg","attrs":{"Feature":"Corrosion Resistant","IP Rating":"IP67","Operating Current":"<50mA","Operating Temperature":"-20~60\u2103"}}
{"title":"IP67 Blanking Infrared Light Curtain","imgUrl":"https:\/\/img.chinax.com\/nimg\/b3\/ec\/90b79d659bc6281b1d7eefd41894-200x200-1\/ip67_blanking_infrared_light_curtain.jpg","attrs":{"Brand Name":"JUTAI","Model Number":"CL15-8L8","Certification":"CE","Place of Origin":"China"}}
{"title":"8 Beam 1.5m Blanking Light Curtain Sensor With No\/Nc Output And Aluminum Alloy","imgUrl":"https:\/\/img.chinax.com\/nimg\/b3\/ec\/90b79d659bc6281b1d7eefd41894-200x200-1\/8_beam_1_5m_blanking_light_curtain_sensor_with_no_2fnc_output_and_aluminum_alloy_shell.jpg","attrs":{"Feature":"Corrosion Resistant","Operating Temperature":"-20~60\u2103","Output":"No\/Nc, COM","Brand Name":"JUTAI"}}
{"title":"Safety Blanking Light Curtain Sensor For Inductrial Door Rapid Door Safety","imgUrl":"https:\/\/img.chinax.com\/nimg\/1c\/ac\/3ecde57fb6f6f25b0ce95a1b358a-200x200-1\/safety_blanking_light_curtain_sensor_for_inductrial_door_rapid_door_safety_control.jpg","attrs":{"Feature":"Corrosion Resistant","Operating Current":"<50mA","Brand Name":"JUTAI","Model Number":"CL15-8L8"}}
{"title":"Industrial Gate 150cm 8 Group Beams Photocell Anti Pinch Safety Light Curtain 8m","imgUrl":"https:\/\/img.chinax.com\/nimg\/c4\/ec\/028add98643880fee99bcbca8572-200x200-1\/industrial_gate_150cm_8_group_beams_photocell_anti_pinch_safety_light_curtain_8m_range.jpg","attrs":{"Sensing Distance":"8m","Working Current":"<20mA@DC12V","Supply Voltage":"DC12-24V","Specification":"150*2.1*1.5cm"}}
Safety Light Curtain Sensors for Door Gap Protection and Personnel Safety Detection
Safety Light Curtain for Door Gap Protection and Personnel Safety Detection
JUTAI CL20-8L Safety Light Curtain is a professional protective sensing device designed to address door gap hazards and ensure personnel safety. It forms an invisible 8-beam light grid between the emitter and receiver, instantly triggering safety responses (e.g., door reversal, stopping) when personnel, objects, or equipment intrude the door gap or detection area. Suitable for automatic doors, roller shutter doors, fast doors, and industrial access doors, it effectively prevents pinching, crushing, and collision accidents in commercial and industrial environments.
Core Specifications
Parameter
Specification
Model
CL20-8L
Working Voltage
DC12-24V
Working Current
Transmitter: <65mA @DC12V; Receiver: <20mA @DC12V
Output Configuration
NO/NC relay output (default NO, configurable to NC)
Protection Rating
IP67 (dustproof + waterproof)
Housing Material
Aluminum alloy
Operating Range (Emitter to Receiver)
1-8m
Maximum Protection Height
1729mm
Number of Photocells
8 beams
Cable Length
Transmitter: 8m; Receiver: 4m
Connector Type
Transmitter: 5-pole M8 male connector; Receiver: 5-pole M8 male connector
Operating Temperature
-20°C ~ +60°C
Key Function
Door gap protection + personnel safety detection + Blanking Mode (anti-false alarm)
LED Status Indicators
Transmitter: Steady blue (normal operation); Fast-flashing red (voltage <9V or >28V) Receiver: Steady red (object/personnel blocked); Steady blue (no obstruction); Flashing blue (first power-on, emitter-receiver misalignment)
Key Functions & Advantages
1. Door Gap Protection Specialization
Targets door gap hazards: Prevents pinching of hands, limbs, or objects in the gap during door closure (ideal for roller shutters, fast doors, and automatic doors)
Blanking Mode support: Blocks the first channel without triggering safety responses, adapting to door gap structures and avoiding false alarms from normal door operation
2. Reliable Personnel Safety Detection
8-beam full coverage: Eliminates safety blind spots in the door area, accurately detecting personnel or objects entering the detection zone
Instant response: Triggers door reversal/stopping immediately upon beam interruption, leaving no time lag for high-risk scenarios
3. Durable & Adaptable Design
IP67 protection: Withstands dust, water splashes, and temporary immersion, suitable for indoor/outdoor industrial environments
Wide temperature range: Operates stably in low-temperature (-20°C) cold storage or high-temperature (+60°C) workshop settings
Rugged aluminum alloy shell: Resists mechanical wear, vibration, and corrosion for long-term use
4. Easy Installation & Configuration
Color-coded wiring: Simplifies connection without professional guidance
Adjustable mounting: Matches different door frame structures, with clear mounting hole indicators for quick positioning
Configurable output: Supports NO/NC switching via simple operation to adapt to various door control systems
Wiring Guide
Component
Wire Color
Function
Notes
Transmitter
Red
DC12-24V Positive Power Supply
Connect to power supply positive terminal
Transmitter
Black
Ground (GND)
Connect to power supply negative terminal
Transmitter
Green
Reserve
No need for connection in basic use
Transmitter
Yellow
Reserve
No need for connection in basic use
Transmitter
White
Reserve
No need for connection in basic use
Receiver
Red
DC12-24V Positive Power Supply
Same as transmitter power connection
Receiver
Black
Ground (GND)
Same as transmitter ground connection
Receiver
Green
NO/NC Output (Default NO)
Connect to door control system signal input
Receiver
Yellow
Configurable NC
Activate via Blanking Mode setup
Receiver
White
COM (Common Terminal)
Matching terminal for NO/NC output
Blanking Mode & NC Configuration Steps
Power on the device (ensure wiring is correct)
Within 1 minute of power-on, touch the receiver's Green wire to its GND (Black wire) five times
Observe the receiver's Red light blinking to confirm activation: Yellow wire switches to NC mode, and Blanking Mode is enabled
Lifting equipment doorways (elevators, hydraulic lifts with door structures)
Troubleshooting
Fault Symptoms
Possible Causes
Solutions
Receiver's blue light flashes after power-on
Emitter and receiver are misaligned
Readjust the position of both units to ensure parallel alignment
Transmitter's red light flashes fast
Power supply voltage <9V or >28V
Check and stabilize the power supply to meet DC12-24V requirements
Light curtain works normally, but door has no anti-pinch action
Wiring error (e.g., NO/NC connected to power positive)
Recheck wiring against the Wiring Guide; avoid connecting output terminals to power positive
Unable to enter Blanking Mode
1. Light leakage during door descent 2. Bottommost beam blocked by debris 3. Door/obstruction fails to meet minimum continuous blocking distance
1. Fix door sealing to prevent light leakage 2. Clear debris blocking the beam 3. Adjust door or obstruction to meet continuous blocking distance requirements
Usage & Maintenance Caveats
Keep connecting cables away from high-voltage/high-current conductors to avoid interference or damage
Regularly wipe the emitter/receiver lenses with a dry, soft cloth to remove dust, oil stains, or condensation (avoids detection failure)
Do not bend, twist, or pull the cables forcefully; avoid scratching the infrared lenses
Prevent direct sunlight or other infrared light sources from shining on the receiver (avoids false triggers)
Ensure the door or obstruction used for Blanking Mode meets the minimum continuous blocking distance requirement
"JUTAI's sensor eliminated downtime in our cold storage facility. The IP67 rating ensured reliable operation even at -25°C."
-- Michael Chen, Warehouse Manager, Leading Cold Chain Logistics Provider
"The dual-mode feature allowed seamless integration into our existing infrastructure. Installation was effortless!"
-- Lisa Wang, Safety Engineer, Global Automotive Manufacturer
"JUTAI's CE-certified sensor met our safety standards while reducing maintenance costs by 30%."
-- David Li, Plant Director, International Pharmaceutical Corporation
"After installing JUTAI's 16-beam sensor, we saw a 100% reduction in conveyor-related incidents."
-- Sarah Zhang, Safety Officer, Top E-commerce Fulfillment Center
"The sensor's rapid response time (<=20ms) protected workers from robotic arm collisions during high-speed operations."
-- John Wu, Engineering Manager, Industrial Equipment Producer
"The IP67 aluminum housing resists water in our food processing lines while maintaining accuracy."
-- Emily Chen, Quality Assurance Manager, Global Food & Beverage Company
"JUTAI's sensor improved AGV collision avoidance, reducing downtime by 25%."
-- Kevin Liu, Logistics Director, Automated Storage Solutions Provider
"The sensor ensures fire doors close safely without compromising personnel safety during drills."
-- Jason Zhou, Technical Lead, Fire Protection Systems Company
Company Details
Bronze Gleitlager
,
Bronze Sleeve Bushings
and
Graphite Plugged Bushings
from Quality China Factory
Business Type:
Manufacturer,Exporter
Year Established:
2012
Total Annual:
120000-150000
Employee Number:
50~70
Ecer Certification：
Verified Supplier
Shenzhen Jutai COMM Co., Ltd. is a high-tech privately-owned enterprise that integrates production, research and development, and sales. Our company is dedicated to the research and development as well as system integration of security products, achieving an intelligent one unified platform that int... Shenzhen Jutai COMM Co., Ltd. is a high-tech privately-owned enterprise that integrates production, research and development, and sales. Our company is dedicated to the research and development as well as system integration of security products, achieving an intelligent one unified platform that int...
