SKU: SENS-1267
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Generic LJ18A3-8-Z/EX Inductive Proximity Sensor, 6.4mm Detection Range, 2-Wire DC NO, 10-36V, IP65

₹209.00 (Inclusive of all taxes)
Out of Stock

The LJ18A3-8-Z/EX is a 2-wire DC normally open inductive proximity sensor with a 6.4mm detection range for ferrous metals, operating from 10-36V DC. Its IP65-rated cylindrical housing is designed for direct integration into industrial control systems, PLCs, and automated machinery.

Features

  • 2-Wire DC Normally Open (NO) configuration simplifies wiring and installation.
  • 6.4mm nominal sensing distance specifically calibrated for iron/steel targets.
  • Wide operating voltage range of 10-36V DC for flexible power supply compatibility.
  • IP65-rated housing provides protection against dust ingress and water jets for harsh industrial environments.
  • High switching frequency and repeatable accuracy for reliable position detection in automated systems.

Out of stock

Description

The LJ18A3-8-Z/EX operates on the eddy current induction principle. When a ferrous metal target enters its 6.4mm sensing field, it induces eddy currents that dampen the sensor’s internal oscillator, triggering a solid-state switch. This non-contact detection method eliminates mechanical wear and sparking.

Built with a non-shielded (flush-mountable) cylindrical M18 housing, this sensor is engineered for industrial durability with an operating temperature range of -25°C to 70°C. It features integrated reverse polarity and short-circuit protection, allowing for direct connection to programmable logic controllers (PLCs) and other 10-36V DC control systems without additional interface modules.

Key Features

  • Non-contact inductive sensing ensures long operational life with no mechanical wear.
  • Integrated LED status indicator provides visual confirmation of switching state and power.
  • High vibration resistance and protection against dust, water, and oil splashes (IP65).
  • Designed for high repeat positioning accuracy and fast response in automated production lines.
  • Wide voltage tolerance supports stable operation across common industrial DC power supplies.
  • Built-in electrical protections include reverse polarity and output short-circuit safeguards.
  • Non-shielded (flush-mountable) design allows for side-by-side installation.
  • Robust M18 threaded metal housing suitable for demanding machine tool and robotic applications.

Applications

  • Position detection and end-of-travel limit switching on CNC machines and automated lathes.
  • Part presence verification and counting in conveyor belt systems and assembly lines.
  • Tool position monitoring and tool break detection in machining centers and robotic arms.
  • Door and safety gate position sensing in industrial machinery and packaging equipment.
  • Precise mold positioning and ejection sequence control in injection molding machines.

Technical Specifications

Model NumberLJ18A3-8-Z/EX
Sensing PrincipleInductive (Eddy Current)
Detection ObjectFerrous Metals (Iron/Steel)
Nominal Sensing Distance (Sn)6.4 mm
Output Configuration2-Wire, Normally Open (NO)
Operating VoltageDC 10-36 V
Max. Switching Current200 mA
Housing Type / SizeCylindrical, M18 Thread
Mounting TypeNon-Shielded (Flush-Mountable)
IP RatingIP65
Insulation Resistance>50 MΩ
Operating Temperature-25°C to +70°C
Cable Length1.2 m (integrated)
Housing MaterialMetal (Nickel-Plated Brass)

Frequently Asked Questions

What type of metals can this LJ18A3-8-Z/EX sensor detect?

This inductive proximity sensor is specifically calibrated to detect ferrous metals, primarily iron and steel. The sensing distance of 6.4mm is guaranteed for these materials. Non-ferrous metals like aluminum or copper will have a significantly reduced effective sensing range and are not the intended detection target for this model.

How do I wire this 2-wire DC normally open sensor?

Wiring is straightforward due to the 2-wire design. Connect the brown wire to the positive DC supply voltage (10-36V) and the blue wire to the ground/common of your load (e.g., a PLC digital input). The sensor acts as a switch in series with the load. When a metal target is detected, the internal switch closes, completing the circuit and allowing current to flow to your controller.

Can this sensor be mounted flush with a metal surface?

Yes, the 'non-shielded' or flush-mountable design of the LJ18A3-8-Z/EX allows it to be installed flush in a metal mounting bracket without a gap. This design minimizes the required mounting space and enables side-by-side installation of multiple sensors. Ensure the sensing face is flush with the mounting surface for optimal performance.

What is the difference between the operating voltage (10-36V) and the detection range (6.4mm)?

The operating voltage (10-36V DC) is the electrical power required for the sensor's internal electronics to function. The detection range (6.4mm) is a mechanical specification indicating the maximum distance from the sensor's face at which a standard iron target will reliably trigger the output switch. These are independent parameters; the sensor will operate across the full voltage range while maintaining the specified 6.4mm sensing distance.

Package Includes

  • 1 x Inductive Proximity Sensor (LJ18A3-8-Z/EX)

Additional Information

Weight 0.08 kg

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