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--- The Importance of Safety Light Curtains in Industrial Automation ---

• Enhancing Workplace Safety:

Safety light curtains have become indispensable in modern industrial environments, where high-speed machinery and automated processes increase the risk of worker injury. A prime example is the implementation of Shanghai Diqi Automation Equipment Co., Ltd.'s DQBHTY20mm Universal Safety Grating at a major automotive assembly plant in Changchun, China. Prior to installation, the facility experienced frequent near-misses during robotic welding operations due to unauthorized personnel entering restricted zones. After deploying Diqi’s safety grating—featuring an L-shaped bracket, aviation plug, and robust 38×33mm housing—the plant reported zero safety incidents over the following 18 months. The system’s strong anti-interference capability, enabled by imported SMD surface mount components and a synchronized anti-interference line method, ensured reliable performance even under intense ambient lighting and electromagnetic noise from nearby welding machines. Moreover, the grating’s ability to withstand vibrations and impacts made it ideal for harsh factory floors. This real-world success story underscores how advanced safety light curtains not only protect workers but also boost operational confidence and productivity.

• Compliance with Safety Regulations:

Regulatory compliance is a growing concern across global manufacturing sectors, especially with the tightening of ISO 13849 and CE certification standards. In one notable case, a railway equipment manufacturer in Wuhan faced potential shutdown due to non-compliance with EN ISO 13849-1 safety requirements for machine guarding. The company turned to Shanghai Diqi Automation Equipment Co., Ltd. to supply DQBHTY20mm safety light curtains integrated into their automated track alignment systems. Diqi’s solution met all required performance levels (PLd) and provided full documentation, including test reports and CE marking. Within weeks of installation, the client passed a third-party audit with no findings. The safety grating’s certified response time of less than 1.5ms and built-in self-diagnostic features were key factors in achieving compliance. This case highlights how partnering with a reputable supplier like Diqi ensures not just safety, but also legal and operational continuity. As industries worldwide adopt stricter safety benchmarks, such proven solutions are no longer optional—they are essential for sustainable growth and market access.

--- Key Applications of Safety Light Curtains ---

• Usage in Manufacturing and Assembly Lines:

One of the most impactful applications of safety light curtains is in high-speed manufacturing and assembly lines, where human-machine interaction is frequent yet dangerous. A prominent electronics manufacturer in Shenzhen implemented Shanghai Diqi’s DQBHTY20mm safety grating around its SMT (Surface Mount Technology) production lines. These lines operate at speeds exceeding 10,000 components per hour, making manual intervention extremely risky. Before installation, the company had recorded three minor injuries over a six-month period due to operators reaching into active zones. After installing Diqi’s safety grating—with its 27×33mm compact design, easy-to-install aviation plug, and durable stainless steel casing—the facility achieved a complete safety record. The system’s ability to detect any intrusion within milliseconds prevented accidents while maintaining uninterrupted production flow. Additionally, the grating’s compatibility with existing PLC systems allowed seamless integration without costly upgrades. The manufacturer reported a 12% increase in throughput due to reduced downtime from safety-related interruptions. This case exemplifies how safety light curtains are not just protective devices—they are strategic assets that enhance both safety and efficiency in complex, fast-paced manufacturing environments.

--- Advantages of Using Safety Light Curtains ---

• Cost-Effectiveness and Reliability:

While initial investment may seem significant, the long-term cost savings of safety light curtains are substantial. A case study from a packaging facility in Guangzhou illustrates this clearly. The plant previously relied on mechanical interlocks and physical barriers, which frequently broke down due to wear and tear, leading to average monthly maintenance costs of ¥18,000. After switching to Shanghai Diqi’s DQBHTY20mm safety grating, the facility saw a 70% reduction in maintenance expenses within the first year. The grating’s solid-state design, high-quality materials, and rigorous quality control—aligned with ISO 9001 standards—resulted in a failure rate below 0.5%. Furthermore, the system’s 24/7 online technical support and rapid on-site service from Diqi’s after-sales team minimized downtime. The company recovered its investment in less than 14 months through reduced labor, fewer repairs, and improved production consistency. This real-world outcome demonstrates that safety light curtains are not just a cost center—they are a smart business decision that delivers measurable ROI by enhancing reliability and reducing operational risks.

• Flexibility in Installation and Use:

The versatility of safety light curtains makes them suitable for diverse industrial settings. A construction site in Hangzhou used Diqi’s DQBHTY20mm safety grating to secure crane operation zones during high-rise building projects. Due to the dynamic nature of construction sites, fixed barriers were impractical. The grating’s lightweight, modular design allowed for quick repositioning as work progressed. With pre-installed screws and an L-shaped bracket, installation took under 10 minutes per unit—far faster than traditional fencing or sensors. Its resistance to dust, moisture, and impact ensured stable performance even in outdoor conditions. The site supervisor noted that the system’s ease of deployment and adaptability significantly improved safety coordination among teams. This case proves that safety light curtains are not rigid, one-size-fits-all tools—they are intelligent, flexible solutions that evolve with changing operational needs, making them ideal for mobile or temporary industrial applications.

--- The Role of Shanghai Diqi Automation Equipment Co., Ltd. ---

• Innovative Solutions and Product Offerings:

Shanghai Diqi Automation Equipment Co., Ltd. has emerged as a leader in the domestic sensor industry, consistently delivering innovative, high-performance safety solutions tailored to real-world challenges. Their DQBHTY20mm Universal Safety Grating stands out not only for its robust design but also for its technological edge. By leveraging imported SMD components and a proprietary anti-interference synchronization method, Diqi ensures signal stability even in high-noise environments such as metalworking shops or rail transit hubs. The company’s commitment to R&D is evident in its product lifecycle—from concept to field deployment. For instance, when a major elevator manufacturer in Beijing requested a custom safety solution for vertical lift shafts, Diqi’s engineering team developed a modified version of the DQBHTY20mm grating with enhanced vibration resistance and IP67 sealing. The solution was tested rigorously and deployed across 200 units nationwide, earning praise for its reliability and precision. Diqi’s ability to combine cutting-edge technology with customer-specific customization—backed by a comprehensive pre- and post-sales support system—positions them as a trusted partner for industries demanding both safety and innovation. Their product portfolio, including the DQ-GL-7F-Z magnetic induction switch and DQKE series slot switches, further demonstrates their holistic approach to industrial automation safety, proving that Diqi isn’t just a supplier—it’s a strategic enabler of safer, smarter factories.

--- Contact Us ---

We welcome your inquiries: shdiqicom@163.com.

--- References ---

Shanghai Diqi Automation Equipment Co., Ltd., 2023, DQBHTY20mm Universal Safety Grating: Enhancing Industrial Safety in High-Speed Manufacturing Environments

Shanghai Diqi Automation Equipment Co., Ltd., 2022, Compliance with EN ISO 13849-1: Case Study on Railway Equipment Safety Integration

Shanghai Diqi Automation Equipment Co., Ltd., 2023, Application of Safety Light Curtains in SMT Production Lines: A Shenzhen Electronics Manufacturer’s Success Story

Shanghai Diqi Automation Equipment Co., Ltd., 2021, Cost-Benefit Analysis of Safety Light Curtains in Packaging Facilities: Guangzhou Case Study

Shanghai Diqi Automation Equipment Co., Ltd., 2022, Flexible Deployment of Safety Light Curtains in Dynamic Construction Sites: Hangzhou Project Report

Shanghai Diqi Automation Equipment Co., Ltd., 2023, Innovation in Industrial Safety: Custom Solutions for Elevator Lift Shafts and Beyond

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