Today, Wuxi Ruihuan Sensing Technology Co., Ltd. will introduce to you the "Selection, Installation and Maintenance Guide for Rihuan Sensing Safety Photogates for Press Machines". 

The punching machine, as the core equipment for industrial stamping, operates at a high speed and has a strong impact force. If the hand accidentally enters the dangerous area, it is highly likely to cause an accident. By combining with professional safety grating protection, it not only complies with production requirements but also plays a crucial role in safeguarding personnel safety. Dayuan Sensing focuses on the punching machine scenario and has launched a standardized safety grating protection solution, covering the entire process from selection, installation, commissioning, and maintenance, achieving efficient, reliable, and zero-blind-zone protection. 

I. Precise Selection: Core Criteria for Adapting to the Pressing Machine Environment

High Safety Level Priority: Select Type 4 (PL e/SIL 3) level products, with redundant self-check design. A single fault will not affect the safety protection, which meets the mandatory requirements for high-risk pressing operations.

High Precision and Fast Response: The optical axis spacing is 14-15mm, accurately identifying hand intrusion. The response time is ≤ 1ms. The machine stops immediately when the light is blocked, eliminating safety delays.

Strong Environmental Adaptability: IP67 high protection + anti-vibration structure. It is not afraid of dust, oil, and equipment vibration in the workshop. It operates stably for a long time with few faults.

II. Standard Installation: Eliminate Protection Blind Zones

Precise Positioning: The transmitting end and the receiving end are symmetrically fixed on both sides of the slider. The optical axis covers the entire dangerous area without any blind spots or missed protection.

High Compliance: The minimum distance of the optical axis from the ground is ≤ 300mm. This prevents people from entering the dangerous area from below, forming a full-dimensional protective barrier.

Strengthened Anti-Shake: Special reinforced brackets are installed for installation, avoiding the displacement of the optical sensor and the deviation of the optical axis caused by long-term vibration of the press machine.

III. Debugging and Linkage: Ensure the Reliability of Protection

Test the optical axis section by section to ensure that the machine stops immediately when the light is blocked, without false alarms or delays.

Connect the signal to the emergency stop circuit of the equipment to achieve dual protection. The equipment cannot be started in the fault state.

Set a manual reset logic. After the light is blocked and the machine stops, it needs to be reset manually to avoid the secondary risk of automatic restart.

IV. Daily Maintenance: Extend Service Life and Safeguard Safety

Clean the surface of the optical sensor every shift, remove dust and oil, and check that the screws of the circuit are not loose.

Carry out comprehensive debugging monthly, recheck the alignment degree of the optical axis, response speed, and stop function.

Immediately stop the machine for troubleshooting if there is a fault. Do not put it into production until the fault is repaired. 

Rihuan Sensor focuses on the field of industrial safety detection. It has been deeply engaged in the research, production and sales of safety gratings. All its products comply with high-level safety standards. It designs customized protection solutions for stamping machines, machine tools and automated production lines. With core advantages such as high precision, fast response and strong anti-interference, along with one-stop selection, installation, commissioning and after-sales support, it helps enterprises build a solid safety defense line for production.

Choose Rihuan Sensor, and make industrial production safer and more reassuring!