Professional Safety Light Curtain System for Material Handling and Automated Door Safety

Place of Origin China
Brand Name JUTAI
Certification CE
Model Number CL20-8L
Document CL05-8L User Manual.pdf
Minimum Order Quantity 1
Price Negotiation
Packaging Details Cartoon
Delivery Time 5 - 8 working days
Payment Terms T/T,L/C,D/A,D/P,Western Union,Paypal,,MoneyGram,Alipay
Supply Ability 1000 pieces per month

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Product Details
IP Rating IP67 Function Blanking
Sensing Distance 8m Material Aluminum Alloy
Feature Corrosion Resistant Power Voltage DC12-24V
Operating Temperature -20~60℃ Operating Current <50mA
Output No/Nc, COM Working Current <20mA@DC12V-24V
Specification 2000*21*15 Mm
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Product Description
 


Product Description


Professional Safety Light Curtain System for Material Handling and Automated Door Safety 0


Professional Safety Light Curtain System for Material Handling and Automated Door Safety

JUTAI CL20-8L Professional Safety Light Curtain System is a dedicated protective sensing solution engineered for material handling scenarios and automated door safety. It forms an 8-beam invisible protective grid between the emitter and receiver, instantly triggering safety responses (e.g., equipment stop, door reversal) when personnel, materials, or tools intrude the detection area. This effectively prevents pinching, crushing, or collision accidents in material handling workflows (conveyors, AGVs, loading docks) and automated door operations (fast doors, roller shutters), serving as a critical safety component in industrial and commercial environments.

Core Specifications (Detailed Parameter Table)

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); COM terminal included
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 Material handling safety protection + automated door anti-pinch + 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 (Clear Points)

1. Material Handling Safety Protection

  • Adapts to dynamic workflows: Detects personnel or materials near conveyors, AGVs, or loading docks, triggering equipment stops to avoid collisions.
  • Wide coverage: 1729mm protection height covers material transfer areas, preventing hazards from falling goods or accidental intrusion.

2. Automated Door Anti-Pinch Specialization

  • Targets door operation risks: Prevents pinching of hands, limbs, or materials during automated door closure (fast doors, roller shutters).
  • Blanking Mode: Blocks the first channel without triggering safety responses, adapting to door gap structures and avoiding false alarms from normal door operation.

3. Rugged & Reliable Performance

  • IP67 protection: Withstands dust, water splashes, and harsh industrial environments, suitable for material handling areas with frequent dust or humidity.
  • Wide temperature adaptability: Operates stably in low-temperature cold storage or high-temperature workshop settings (-20°C ~ +60°C).
  • Durable structure: Aluminum alloy shell resists mechanical wear, vibration, and corrosion from material handling equipment.

4. Easy Integration & Operation

  • Color-coded wiring: Simplifies connection to material handling control systems and automated door panels (details in Wiring Guide).
  • Intuitive LED indicators: Enables quick status checks (normal/blocked/misalignment/voltage issues) without professional tools.
  • Configurable output: Supports NO/NC switching via simple operation to match different control system requirements.

Wiring Guide (Standardized Table)

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 material handling/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

Critical Warning

  • Do NOT connect NO/NC terminals to the power supply positive terminal, as this will damage the optical relay.

Blanking Mode & NC Configuration Steps

  1. Power on the system and confirm correct wiring.
  2. Within 1 minute of power-on, touch the receiver’s Green wire to its GND (Black wire) five times.
  3. Observe the receiver’s Red light blinking to confirm activation: Yellow wire switches to NC mode, and Blanking Mode is enabled.

Application Scenarios (Targeted List)

Material Handling

  • Conveyor systems (loading/unloading points, transfer stations)
  • Automated Guided Vehicle (AGV) pathways
  • Loading docks (material transfer doorways)
  • Packaging lines (near moving machinery)
  • Warehouse storage/retrieval system access points

Automated Doors

  • Fast doors (production lines, logistics centers)
  • Roller shutter doors (warehouses, retail back entrances)
  • Industrial sectional doors (factory workshops)
  • Cold storage doors (material storage facilities)

Troubleshooting (Problem-Solution Table)

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 no safety action (equipment/door) Wiring error Recheck wiring against the Wiring Guide; ensure NO/NC is connected to the correct control signal terminal
Unable to enter Blanking Mode 1. Light leakage during door descent

2. Bottommost beam blocked by debris/materials

3. Door/obstruction fails to meet minimum continuous blocking distance
1. Fix door sealing to prevent light leakage

2. Clear debris or materials blocking the beam

3. Adjust door or obstruction to meet continuous blocking distance requirements

Usage & Maintenance Caveats (Key Reminders)

  • 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, material residues, or condensation.
  • 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.
For technical support, customization, or bulk inquiries, visit our official website: https://www.accesssecuritysolution.com/

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Customer Success Stories

1. Cold Storage Giant: Reliable Operation at -25°C
"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
 
2. Automotive Manufacturing Leader: Seamless Integration
"The dual - mode feature allowed seamless integration into our existing infrastructure. Installation was effortless!"
— Lisa Wang, Safety Engineer, Global Automotive Manufacturer
 
3. Pharmaceutical Plant: Compliance & Efficiency
"JUTAI’s CE - certified sensor met our safety standards while reducing maintenance costs by 30%."
— David Li, Plant Director, International Pharmaceutical Corporation
 
4. E - commerce Warehouse: Accident - Free Operations
"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
 
5. Heavy Machinery Manufacturer: Enhanced Operator Safety
"The sensor’s rapid response time (<=20ms) protected workers from robotic arm collisions during high - speed operations."
— John Wu, Engineering Manager, Industrial Equipment Producer
 
6. Food Processing Plant: Hygienic & Durable
"The IP67 aluminum housing resists water in our food processing lines while maintaining accuracy."
— Emily Chen, Quality Assurance Manager, Global Food & Beverage Company
 
7. Automated Warehouse: AGV Navigation Safety
"JUTAI’s sensor improved AGV collision avoidance, reducing downtime by 25%."
— Kevin Liu, Logistics Director, Automated Storage Solutions Provider
 
8. Fire & Safety Provider: Fire Door Compliance
"The sensor ensures fire doors close safely without compromising personnel safety during drills."
— Jason Zhou, Technical Lead, Fire Protection Systems Company





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