PJTI-S50N R2M Through-beam ultra-small photoelectric sensor

Product Specifications

Comprehensive Product Overview & Application Details

The PJTI-S50N R2M represents a pivotal advancement in precision object detection, engineered specifically for complex automated environments. By integrating a highly focused Ø2 beam within an exceptionally compact footprint, this through-beam photoelectric sensor provides engineers with a reliable method to identify microscopic components on fast-moving production lines. The design prioritizes continuous operation, ensuring that spatial limitations never compromise detection accuracy or overall system efficiency.

Ultra-Compact Design for Constrained Installations

Modern automation equipment demands components that can effortlessly fit into increasingly dense mechanical layouts. Measuring a mere 22.2×8.2×12mm, the physical profile of this sensor is designed to occupy minimal volume. When handling the device, the dense, rigid feel of the industrial-grade housing conveys immediate durability despite its miniature scale. This extreme miniaturization allows installation in the tightest crevices of robotic assemblies, micro-conveyors, and indexing dials where standard-sized sensors simply cannot fit. By eliminating the need for bulky mounting brackets, equipment designers can maintain sleek, unobtrusive machine profiles while achieving optimal detection angles.

High-Precision Detection and Millisecond Responsiveness

At the core of its operational capability is an advanced optical system capable of maintaining a stable sensing distance of up to 500 mm. The highly concentrated Ø2 beam penetrates through ambient factory lighting to accurately register the presence or absence of minute targets. In environments where production speed dictates profitability, the sensor’s rapid 2 ms response time becomes a critical asset. As items zip past on high-speed sorting tracks, the sensor registers each passing edge with unfailing consistency, transmitting the NPN Normally Open signal instantly to the central logic controller. This eliminates the risk of missed counts or delayed actuations, ensuring that subsequent mechanical actions—such as pneumatic rejection or robotic picking—occur at the exact required millisecond.

Dependable Electrical Stability and Built-In Protections

Electrical anomalies are a constant threat in heavy industrial settings, making internal circuitry protection paramount. Operating on a standard 12~24 VDC supply, this device incorporates comprehensive safeguards against common wiring errors and power fluctuations. The built-in reverse polarity protection ensures that accidental miswiring during rapid commissioning will not destroy the internal components. Furthermore, the short-circuit protection actively monitors the 100 mA load current, instantly severing the output if a fault is detected down the line. These invisible but essential features drastically reduce the likelihood of unexpected downtime, providing maintenance teams with the confidence that the sensor will survive the unpredictable nature of factory power grids.

Flexible Cabling for Dynamic Motion Systems

The physical connection between the sensor and the control panel is often the most vulnerable point in dynamic machinery. To combat cable fatigue, this model is equipped with a premium 2-meter straight-out cable engineered for superior flexibility. Running your fingers along the cable reveals a smooth, pliant outer jacket that resists kinking and abrasion. This high-flex characteristic is crucial when routing wires through the articulated joints of robotic arms or the continuous loops of moving cable tracks. The materials resist hardening over time, maintaining their supple nature even when subjected to repetitive bending cycles, thereby preventing internal wire breakage and ensuring uninterrupted signal transmission throughout the lifespan of the machine.

Industrial-Grade Materials and Environmental Resilience

Factory floors are rarely pristine environments. To withstand daily exposure to airborne particulates and intermittent moisture, the outer shell is constructed from a specialized blend of PBT and PVC. This material combination offers excellent dimensional stability and resistance to mechanical impacts. Rated with an IP54 protection level, the enclosure effectively repels dust ingress and withstands splashing water from multiple directions. Whether operating in the chill of a -10℃ facility or the localized heat of a 50℃ motor enclosure, the sensor maintains its structural integrity and optical clarity. The resilient housing ensures that the internal optics remain perfectly aligned, free from the distorting effects of environmental contamination.

Versatile Applications Across Advanced Manufacturing

• Semiconductor Manufacturing: In the delicate process of wafer handling and microchip positioning, the precise Ø2 beam confirms the exact location of fragile components without physical contact, eliminating the risk of surface contamination or mechanical damage.
• 3C Electronics Assembly: As smartphones and tablets move through rapid assembly stations, the ultra-small footprint allows the sensor to be mounted directly adjacent to insertion tools, verifying the presence of microscopic screws and connectors.
• Automotive Parts Inspection: Deployed within the complex tooling of automotive sub-assembly lines, the resilient IP54 housing withstands the ambient grease and dust while reliably detecting the passage of metal brackets and plastic fasteners.
• Automated Packaging Systems: The 2 ms response time perfectly synchronizes with high-speed packaging carousels, ensuring accurate counting and jam detection for continuous, uninterrupted material flow.