Omron E2EW-QX12B3T18 2M Inductive Proximity Sensor

The Omron E2EW-QX12B3T18 2M Inductive Proximity Sensor is designed for reliable metal object detection in demanding industrial environments where welding spatter, coolant, oil, and mechanical stress are common operating conditions. As part of the E2EW Series, this sensor combines a durable stainless-steel body with a fluororesin-coated sensing surface to improve resistance against weld spatter and harsh production environments while supporting digital communication through IO-Link COM3.

The sensor adopts an M18 cylindrical housing with a quasi-flush mounting configuration and provides a 12 mm sensing distance. Its PNP output with both Normally Open and Normally Closed switching functions allows flexible integration into modern automation systems, while IO-Link enables parameterization, diagnostics, and device identification through compatible IO-Link masters. These specifications are provided by the manufacturer for the E2EW-QX12B3T18 2M model. :contentReference[oaicite:0]{index=0}

Omron E2EW-QX12B3T18 2M Technical Description

The Omron E2EW-QX12B3T18 2M Inductive Proximity Sensor belongs to a family of full-metal inductive sensors intended for stable detection of ferrous and non-ferrous metallic targets. Its fluororesin-coated sensing face helps reduce adhesion of welding spatter, allowing the sensing surface to remain operational for extended production cycles.

The sensor operates from a 10–30 VDC supply and communicates through IO-Link COM3 while simultaneously supporting conventional switching output functionality. The integrated LED indicator provides visual operating status during commissioning and maintenance procedures. The stainless-steel housing contributes to mechanical durability, while the IP67 protection rating supports operation in industrial environments exposed to dust and temporary water immersion.

Operating Principle

The sensing principle is based on electromagnetic induction. An internal oscillator generates a high-frequency electromagnetic field around the sensor face. When a conductive metal object enters this field, eddy currents are induced within the target material. These eddy currents modify the oscillator characteristics, allowing the internal electronic circuit to detect the presence of the object and switch the output accordingly.

Unlike mechanical switches, there are no physical contacts involved during detection. This non-contact operating method minimizes mechanical wear while maintaining consistent switching performance during repetitive production cycles.

Through IO-Link communication, additional operational information such as device identification, parameter settings, diagnostics, and maintenance data can be exchanged with the controller without requiring separate configuration hardware.

Omron E2EW-QX12B3T18 2M Typical Applications

The Omron E2EW-QX12B3T18 2M Inductive Proximity Sensor is suitable for industrial processes requiring reliable metal detection under severe operating conditions. Typical applications include production machinery, robotic welding systems, automated material transfer equipment, assembly stations, and machine tools.

• Robotic welding cells
• Metal fabrication machinery
• Automated conveyor systems
• Industrial assembly equipment
• Position verification systems
• Fixture detection
• Automotive production lines
• Machine loading and unloading stations

For additional models within the same product family, see
Omron sensor series.