KEYENCE · Laser Sensor · In stock
What Is the KEYENCE LR-X50 Laser Sensor?
The KEYENCE LR-X50 Laser Sensor is a precision industrial sensor engineered for Laser Sensor applications in automated production and quality-control environments. It detects target objects with high precision with high repeatability and fast response time, making it a critical feedback element in closed-loop control systems. Deployed extensively in assembly lines, packaging machinery, and robotic workcells, it provides the real-time object data that PLCs and motion controllers depend on for accurate decision-making. It is manufactured by KEYENCE and available through KOEED with worldwide shipping.
In short: The KEYENCE LR-X50 Laser Sensor is a Laser Sensor from KEYENCE that provides non-contact target objects with high precision detection for industrial automation — delivering fast, repeatable feedback to PLCs and motion controllers in production environments.
Key Features and Engineering Benefits
1. Non-Contact Detection
What it means: The sensor uses optical/electromagnetic sensing that requires no physical contact with the target object.
Why it matters: No-contact sensing eliminates mechanical wear on both the sensor and the target — there is no probe to break, no spring to fatigue, and no contact bounce to filter in software.
Result: Consistent detection over millions of cycles without recalibration or replacement of worn contact elements.
2. Fast Response Time
What it means: The sensor electronics process the detection signal and update the output state within microseconds to low milliseconds.
Why it matters: In high-speed production lines — bottling, packaging, PCB assembly — a slow sensor becomes the throughput bottleneck for the entire machine.
Result: The production line can run at its mechanically maximum speed without being limited by sensor reaction time.
3. Industry-Standard Output Format
What it means: The sensor provides a digital (NPN/PNP) or analog (4-20mA / 0-10V) output compatible with virtually all PLC input modules.
Why it matters: Standard outputs mean no signal conditioning circuitry, no custom interface boards, and no software protocol translation — just wire it to the PLC terminal block.
Result: Reduced engineering time and fewer components in the electrical panel — lower BOM cost and smaller cabinet footprint.
Key Specifications
Note: Specifications may vary by production batch. Always verify from the product label or manufacturer datasheet before ordering.
| Brand |
KEYENCE |
| Model |
KEYENCE LR-X50 Laser Sensor |
| Type |
Laser Sensor |
| Detection Principle |
Laser triangulation / time-of-flight |
| Output Type |
Verify from product label |
| Supply Voltage |
Verify from product label |
| Housing Material |
Verify from product label |
Typical Applications
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Presence / Absence Detection: Confirming that a component is in place before the next assembly step — prevents missing-part defects in automated assembly.
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Edge Guiding / Web Positioning: Controlling the lateral position of continuous material webs (paper, film, textile, steel strip) in converting and rolling processes.
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Parts Counting on Conveyors: Counting individual products as they pass a checkpoint for production-volume tracking and inventory reconciliation.
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Label / Mark Detection: Triggering a printer or applicator when a registration mark passes the sensor — used in packaging and product labeling stations.
-
Overheight / Overwidth Gauging: Checking that products do not exceed dimensional limits before entering a downstream machine that would jam on an oversized item.
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Robot End-Effector Feedback: Confirming that a gripper has successfully picked a part before the robot moves to the next position — prevents dropped-part collisions.
Frequently Asked Questions
"What is the sensing range of the KEYENCE LR-X50 Laser Sensor and can it be adjusted?"
The sensing range depends on the specific variant and the target material. For most models in this series, the range is specified against a standard white paper target; darker or reflective targets will affect the effective range. If the sensor includes a sensitivity adjustment (potentiometer or teach-in function), the range can be tuned within its design limits. For the exact range specification for your target material, consult the manufacturer datasheet or contact Moritta@KOEED.COM — we can provide the datasheet and application guidance.
"What type of output signal does this sensor provide — NPN, PNP, or analog?"
The output type depends on the exact model variant. NPN (sinking) outputs switch to ground (0V) when active; PNP (sourcing) outputs switch to the positive supply voltage. Most PLC input modules accept either type, but you must match the sensor output to your PLC input card's expected signal type. Check the label on the sensor or the datasheet for the exact output configuration. If the listing does not specify and you need a particular output type, contact us before ordering.
"Can this sensor detect transparent or highly reflective objects?"
Standard diffuse-reflective sensors have difficulty with transparent or mirror-like targets because the light passes through or reflects away from the receiver. Specialized variants (retro-reflective with polarizing filters, or foreground-suppression types) handle these challenging targets. If your application involves glass, clear plastic, polished metal, or mirrors, let us know and KOEED can recommend the appropriate sensor variant or alternative model from our KEYENCE or Omron sensor ranges.
"How do I wire this sensor to my PLC?"
Wiring depends on whether the sensor is 3-wire or 4-wire and whether it uses NPN or PNP output. Generally: brown wire = +VDC supply, blue wire = 0V (ground), black wire = output signal. A 4-wire version adds a white wire for a complementary output or external teach input. Always consult the sensor datasheet for the exact pinout — wire colors can vary between manufacturers. If the datasheet is unavailable, we can help identify the correct wiring from the model number — send it to Moritta@KOEED.COM.
Why Source Sensors Through KOEED?
Industrial sensors are precision instruments — choosing the wrong model for your application leads to false triggers, missed detections, and production downtime. KOEED supports engineers with multi-brand sensor sourcing from Omron, KEYENCE, KEYENCE, and other leading manufacturers. If the sensor you need is obsolete or has a long factory lead time, we locate alternatives and provide cross-reference recommendations. Send your sensor requirements — single unit or full BOM — to Moritta@KOEED.COM for a same-day or next-day quotation.
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