Safety Light Curtain Types: 10mm, 20mm & 40mm Beam Pitch Selection Guide
When configuring a safety light curtain system for mechanical equipment to ensure safety protection, how does one correctly select the appropriate type of safety light curtain?
Fundamentally, the decisive factor in selecting a safety light curtain sensor is its "beam spacing," which determines its ability to provide effective protection for various parts of the human body.
The following is a concise technical guide designed to assist you in matching the appropriate beam spacing to your specific safety requirements:
1. 10mm Beam Spacing — Finger Protection
If an object the size of a finger interrupts the light beams, protection is triggered, and the light curtain system issues a machine stop command!
Applicable Scenarios: Small stamping presses, electronic assembly lines, and various high-risk zones where operators are required to work in close proximity to hazardous points. This specification ensures that even if a single finger inadvertently enters the sensing zone, it is immediately detected, thereby triggering the safety mechanism.
2. 20mm Beam Spacing — Hand and Wrist Protection
If an object the size of a hand interrupts the light beams, protection is triggered, and the light curtain system issues a machine stop command!
Applicable Scenarios: Metal stamping machinery, automotive welding stations, packaging equipment, and safety guarding for various general-purpose machine tools. Among the various types of general-purpose safety light curtains, the 20mm beam spacing is considered the standard specification due to its exceptional versatility.
3. 40mm Beam Spacing — Arm, Limb, and Full Body Protection
If an object the size of an arm interrupts the light beams, protection is triggered, and the light curtain system issues a machine stop command!
Applicable Scenarios: Perimeter guarding, robotic palletizing systems, conveyor belt systems, and large-scale automated warehouses. This specification ensures that should an operator's arm or upper body inadvertently enter the restricted zone, the safety light curtain system will immediately trigger a machine stop command.