This M18 inductive proximity sensor detects metal objects without touching them. It makes a high-frequency field. This senses targets up to 8mm away. It's often used for automation and positioning feedback in machines. Features and Benefits
- Standard M18 threaded body - The 18mm diameter housing mounts easily in brackets or threaded holes.
- 8mm sensing distance - It finds ferrous and non-ferrous metals reliably. No physical contact means less wear.
- NPN and PNP options - Pick the right output type for your system. PNP models send voltage for PLCs. NPN models draw current to ground.
- DC 10-30V operation - This wide voltage range means the switch works with common industrial control power supplies. Applications
- Counting metal parts as they move on a conveyor belt.
- Checking the start or end position of a moving part on a CNC machine.
- Working as a non-contact limit switch for robot arms or machine guards.
What It Is
This is an inductive proximity sensor switch, designed to detect the presence of metallic objects without physical contact. It operates with a detection distance of 8mm and is housed in an M18 diameter barrel. The sensor functions on a voltage rating below 50Vac or 75Vdc. As a proximity sensor, it works by generating an electromagnetic field and sensing changes in that field caused by a metallic object entering its detection range.
Key Uses & Applications
This inductive proximity type sensor is commonly used in industrial automation for tasks such as counting, positioning, and detecting the presence of metal components. Its 8mm sensing range makes it suitable for applications requiring precise, short-distance detection. Typical uses include machine control, assembly lines, and material handling systems where non-contact sensing is beneficial. It functions as a reliable electronics module for triggering actions based on object proximity.
How to Choose
When selecting a proximity sensor, consider the material of the objects to be detected, as this is an inductive type, it works with metallic objects. The required detection distance is crucial; this sensor offers an 8mm range. Verify the housing diameter – this model is M18, which is a common barrel sensor size. Ensure the voltage rating of below 50Vac or 75Vdc is compatible with your system. To test a proximity sensor, apply power and use a metal object to check for a change in its output status.
Voltage Rating: Below 50Vac or 75Vdc. Detection Distance: 8mm. Housing Diameter: M18. Sensor Type: Inductive Proximity Switch. Housing Diameter: M18. Housing Material: Alloy. EU LVD Voltage: Low voltage: Below 50Vac or 75Vdc. Operating Voltage: 6-36V DC. Output Type: NPN/PNP, NO/NC. Operating Temperature: -25°C to 70°C. Protection Rating: IP67. Connection Type: 3-wire or 2-wire. Current Consumption: <10mA. Detection Distance: 8mm. Detection Object: Metallic objects. Model Numbers: LJ18A3-8-Z/AX, LJ18A3-8-Z/AY, LJ18A3-8-Z/BX, LJ18A3-8-Z/BY, LJ18A3-8-J/DZ, LJ18A3-5-Z/AX, LJ18A3-5-Z/BX, LJ18A3-5-Z/AY, LJ18A3-5-Z/BY, LJ18A3-5-Z/EZ, LJ18A3-5-Z/DZ. Product Name: M18 Inductive Proximity Switch Sensor. Response Frequency: 500 Hz. Sensor Type: Inductive Proximity Sensor. Q: What's the sensing distance for the LJ18A3-8-Z/BX model, and what is its output type? A: This sensor has a detection distance of 8 millimeters for standard metal targets. The 'BX' in the model number indicates it's an NPN Normally Open (NO) type, so it outputs a signal when an object is in range.. Q: What is the sensor's body made of? A: It features a threaded M18 body made of nickel-plated brass, which makes it easy to mount and resistant to wear in an industrial setting. The front sensing face is plastic, and an LED on the back lights up when it detects something.. Q: Will this work with my 24V DC control system? A: Yes, this series of sensors works with a DC voltage range from 6 to 36 volts, so 24V is fine. Just be sure you've selected the right output, either NPN or PNP, to match what your PLC or controller needs.. Q: Is there a warranty on this magnetic sensor? A: This is an inductive sensor that detects metal, not a magnetic one that detects magnets. It comes with a 12-month warranty covering functional failures from normal use, but not damage from incorrect wiring or physical impact.. Q: What's the main benefit of using this kind of sensor? A: It allows for non-contact detection of metal parts, which means there's no mechanical wear and tear. This is very useful for counting items on a conveyor or checking for the position of a machine component without touching it..