Shandong Laien Optic-Electronic Technology Co., Ltd.
Main products:Safety Light Curtain SNA1240,Safety Light Curtain SMS1020,Safety Light Curtain STD1680
Contact Us
  • Contact Person : Mr. Qiu Jack
  • Company Name : Shandong Laien Optic-Electronic Technology Co., Ltd.
  • Tel : 86-537-3926517
  • Fax : 86-537-3926519
  • Address : Shandong,Jining,West Shanbo Road,Rencheng Economic Development Zone
  • Country/Region : China
  • Zip : 272000

( Area protection) safety light curtain SQL0332

( Area protection) safety light curtain SQL0332
Product Detailed
1.Perfect self-checking and self-locking function 2.Multiaspect light curtain protect 3.Durable life 4.Good anti-vibration

1.SQL series basic introduction

SQL 0332 series region protection light curtain has higher improvements than STQ,SNQ series region protection light curtains in appearance,firm,installation use and so on. Its appearance is artistical,structure firm,easy to installation

and beam-fousing,and it is widely be used in turret punch,code pile machine,assembly stand ,packing equipment ,logistic processing area, the robot working area,automatic production equipment,other dangerous area surrounding protection.

This series product consist emitter,receiver,reflector,fitting W type,N type,ND type controller or SR type safety relay ,can provide NPN,PNPoutput,can come true single face and long distance region protection,or fit reflector to realize 2 sides or 3 sides region protection.

2.SQL series specification

SQL seriesProtection range:

1 side:<30m

2 sides:<20m;

3 sides:<16m


SQLxx40   (xx=12, 14, 16, 18......40)SQLxx80   (xx=06, 08, 10, 12......20)SQLxx320 (xx=02, 03, 04)

Light axis pitch 40mm, 80mm, 320mm

Protection height :320-1560mm

Protection height=(xx-1)×light axis pitch  

SQLxx40    440,520,600,680......1560mmSQLxx80    400,560,720,880......1520mmSQLxx320  320,640,960mm

3.Working principle

The protector consists of light curtain,signal cables,controller and control cables.The light curtain can form infrard light curtain,detect the signal of passing or intercepting,and send the signal to control box that also supplies power to the light curtain.The control box processes the signal and outputs the closed or opened signal used safety relay,and then connects the control trip circuit of the press by control cable or other protective equipment to protect the workers.

4.Detailed introduction

(1)SQLseries is based on STD series,using 1 or 2 mirrors to reflect the beams,changing the transmissive direction of the beams,forming 2 or 3 sides protected zone.(2)Light curtain form:Plane mirror reflect

(3)Standard configuration:2 sides protection:Emitter/1,Mirror/1,Receiver/1,W type controller/1,Signal cable 3m/1 root, 10m/1 root ,Installation fittings/1 set;

3 sides protection:Emitter/1,Mirror/2,Receiver/1,W type controller/1,Signal cable 3m/1 root, 10m/1 root ,Installation fittings/1 set;It is allowed to choose N type controller.

(4)Controller:W type, outside installation,control 1 set light curtain,the power source is AC220V/110V(terminals) or DC24V; N type, inside installation,control 1 set light curtain,the power source is AC220V/110V(tswitch conversion) or DC24V; controller cable is equipped with standard length: N type 1.0m ,W type 2.5m(5)It can provide NPN ,PNP output, at this time, we should guarantee the follow-up control circuit correspond to safety requirements and provide DC24V power source.(6)Prompts specially:If the power source need to be DC24V,the special explanation should be made on order.If the length of signal and controller cables need to lengthen,the special explanation should be made on order;

5. Application examples

6.SQL series photoelectric protection device order instructions 


N-type (built-in) *

W-type (external)

S-type (control of external double)

Control Cable

Controller to the machine electrical connection between the length: 1.0 m *; 2.5 m ; Other ___

Signal cable

 Light-emitting device to the controller cable length (5) m, by    the              optical device to control the cable length (2.5) m


  Steel Pipe Support *

 Corner plate fixation

Word plate fixation

Width of machine tool table

(1.5) m

Travel + regulatory volume slider


Machine Cam controller

Mechanical cam*

Electronic cam

No cam

Optical axis pitch

20mm *



Product Type

Based on the above selection(SNA1620-N)



 Notes  *Identifies the parameters for the selected  


( Area protection) safety light curtain SQL0332

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