Inductive sensor M12 for welding process 68 mm connector M12 NPN NO Sn = 4 mm

The NWI12111 inductive sensor for welding automation ensures stable, long-lasting operation in welding robots, production machinery, and automated industrial stations.

The versatile M12 size offers a good compromise between compact construction and detection range in welding applications, Ø12 x 68 mm is a format optimized for mounting in the confined spaces of welding robots.

Technical specification:

• Diameter: M12, dimensions that ensure easy integration with typical welding equipment
• Length: 68 mm, a longer sensor body that allows mounting further away from the hottest zone of the weld
• Detection range: 4 mm, repeatable detection of metal parts regardless of the interference generated during welding
• Housing: Threaded, a threaded housing allows precise adjustment of the sensor's position relative to the weld point
• Housing material: Brass with PTFE coating, the PTFE coating increases the housing's resistance to the contamination typical of a welding environment
• Sensor face material: PTFE, the PTFE material keeps detection parameters stable even after repeated contact with spatter
• Mounting: Non-flush mounting, the non-flush version makes use of the full detection range, useful with larger welded parts
• Switching function: normally open (NO), standard normally-open logic, compatible with the typical PLC controllers used on welding lines
• Output type: NPN, an NPN output compatible with the controllers commonly used in welding automation
• Connection: with a M12 plug connector, the plug connector simplifies servicing on the production line, reducing downtime at the resistance-welding station
• Supply voltage: DC 10-30V, a typical industrial automation supply voltage, with no need for additional converters
• Electromagnetic interference (EMC) resistance: yes, proven resistance to the electromagnetic interference generated by resistance-welding machines and welding robots
• Catalog number: W1CN-M1204N-OEU4

Applications

• It works well as a resistance welding sensor and resistance-welding equipment sensor, mounted directly on the arm or gun holder of the welding machine.
• It is an inductive sensor for resistance welding, used where the process generates a strong electromagnetic field and high temperatures.
• Used in resistance welding machines and resistance-welding equipment, it supports precise positioning of parts before welding.
• It works well as a spot welding sensor and supports resistance welding automation on production lines.
• It is used in resistance-welding robots as an inductive sensor for resistance-welding robots, operating in the immediate vicinity of the weld point.

Benefits/Features

• Being temperature-resistant, it can operate in the immediate vicinity of the heat-affected zone without risk of overheating its electronic components.
• A sensing face that is resistant to contamination and resistant to dust maintains stable detection sensitivity even in heavily dust-laden production halls.
• It performs well in heavy-duty operating conditions, typical of welding and resistance-welding shops, where sensors are exposed to vibration and contamination.
• As an industrial sensor for harsh conditions, it is a popular choice for demanding industrial applications and demanding welding applications.
• A construction resistant to the welding environment and to spatter generated during welding extends the sensor's real service life on the line.

When to choose this model

• When you need an inductive sensor for a welding cell where weld spatter is present.
• When the sensor must monitor the presence and position of a part during resistance welding.
• When the sensor must work together with a welding station's automation system.
• When the process requires the use of an industrial proximity sensor resistant to harsh conditions.

Connection

The sensor has an NPN output, so connect it with an M12 4-pin connection cable without LEDs. Cables with LEDs (NXOC12281…, NXOC12401…) have a yellow status LED wired for a PNP output and are not suitable for NPN sensors.