... vibration 1.SQL series basic introductionSQL series region protection light curtain has higher improvements than STQ,SNQ series region ... be used in turret punch,code pile machine,assembly stand ,packing equipment ,logistic processing area, the robot working area,automatic ... 80mm, 320mmProtection height :320-1560mmProtection height=(xx-1)×light axis pitch SQLxx40 440,520,600,680......1560mmSQLxx80 400, ...