KJTDQ RL31-8-2500-IR/73c/136 Photoelectric Switch: The Precision Solution for Industrial Automation

• time：2026-01-16 04:48:00
• Click：0

In the demanding world of industrial automation, reliability and precision are non-negotiable. The KJTDQ RL31-8-2500-IR/73c/136 photoelectric switch stands as a testament to engineering excellence, designed to meet the rigorous challenges of modern production lines, packaging systems, and material handling applications. This device is not merely a component; it is a critical enabler of efficiency, safety, and seamless operation.

At its core, the RL31-8-2500-IR/73c/136 is a through-beam photoelectric sensor. This operating principle involves a separate transmitter and receiver unit. The transmitter, housing an infrared LED (indicated by the "IR" in its model number), emits a focused beam of light. The receiver, positioned opposite, detects this beam. An object is sensed when it interrupts this light path between the two units. This method is renowned for its exceptional sensing range and high immunity to environmental interference such as dust, steam, or target object color and surface finish. The specified "2500" denotes a formidable sensing distance of up to 2500 millimeters (2.5 meters), making it ideal for monitoring large conveyor belts, warehouse portals, or protective guarding systems.

The designation "73c/136" points to key electrical and connection specifications crucial for integration. It typically refers to a specific pin configuration and output type, ensuring compatibility with standard control systems like PLCs (Programmable Logic Controllers). Users can expect a stable, clear signal indicating the presence or absence of an object, which is fundamental for triggering subsequent actions like counting, sorting, stopping a process, or activating an alarm.

What sets the KJTDQ RL31-8-2500-IR/73c/136 apart in a crowded market is its robust construction. Engineered for industrial environments, it features a durable housing that offers significant resistance to impacts, vibrations, and occasional splashes. This resilience translates directly into reduced downtime and lower maintenance costs. The sensor's consistent performance over a wide temperature range ensures operational stability whether installed in a chilled food processing plant or near a warm machinery assembly station.

The applications for this photoelectric switch are vast and varied. In automotive manufacturing, it can precisely detect vehicle bodies on assembly lines, ensuring robots weld or install components at the exact correct location. Within the packaging industry, it is indispensable for detecting product presence on high-speed fillers, ensuring every box contains an item before sealing. In logistics and warehousing, arrays of these sensors monitor package flow on sortation systems, guaranteeing accurate routing and delivery. Furthermore, its long-range capability makes it perfect for safety curtain applications, where breaking the invisible beam can immediately halt dangerous machinery to protect personnel.

Installation and alignment of the through-beam system are straightforward. The separate units are mounted on opposite sides of the area to be monitored. Many models, including those from reputable brands like KJTDQ, incorporate visual indicators like alignment LEDs. These LEDs provide instant feedback, turning on when the receiver adequately sees the transmitter's beam, simplifying setup and troubleshooting. Once aligned, the system delivers unwavering reliability, requiring minimal adjustment over its long service life.

Choosing the right sensor is pivotal for system integrity. The KJTDQ RL31-8-2500-IR/73c/136 addresses specific needs: long-range detection, environmental robustness, and reliable electrical interfacing. When selecting a photoelectric switch, engineers must consider the sensing distance, the operating environment (presence of dust, moisture, temperature extremes), the required response speed, and the output signal type. This model's specifications make it a compelling choice for applications where these factors are critical.

In conclusion, the KJTDQ RL31-8-2500-IR/73c/136 photoelectric switch embodies the precision and durability required for advanced industrial automation. Its through-beam design with a 2.5-meter range provides dependable object detection under challenging conditions. By ensuring accurate, real-time feedback, it forms the sensory backbone of efficient, safe, and intelligent manufacturing and handling processes. For system designers and maintenance engineers seeking a proven solution to enhance operational reliability, this sensor represents a strategic investment in productivity and quality control.