Inductive sensor M30 for welding process 79 mm connector M12 NPN NO Sn = 15 mm

The professional-grade NWI30111 inductive sensor for welding was designed for applications that demand maximum reliability, interference resistance, and long-term durability.

The large M30 diameter enables detection of parts from a greater distance, which matters in welding cells with large components, Ø30 x 79 mm is a format well matched to the typical mounting brackets used at welding stations.

Technical specification:

• Diameter: M30, the largest size in the range, for applications requiring a long detection distance
• Length: 79 mm, a longer sensor body that allows mounting further away from the hottest zone of the weld
• Detection range: 15 mm, stable metal-detection characteristics even close to a resistance-welding machine's electromagnetic field
• 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), the NO function simplifies integration with most existing resistance-welding machine control systems
• 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, a stable output signal even in the immediate vicinity of the strong electromagnetic fields present during welding
• Catalog number: W1CN-M3015N-OEU4

Applications

• Used on resistance-welding lines and automated resistance welding lines, where cycle repeatability matters most.
• It functions as a position sensor for resistance welding machines and a part-presence sensor for resistance welding, confirming correct part placement before the cycle.
• It supports position control in resistance welding, signaling the machine controller that a part is present in the work zone.
• It is used in welding automation systems and resistance welding automation systems as a feedback element for the PLC controller.
• It is a component of welding process control systems and resistance welding process control systems, confirming the presence and position of parts.

Benefits/Features

• An IP67-rated housing protects the sensor's interior against dust and water jets, which matters when cleaning a welding station.
• The sensor is resistant to electromagnetic interference, keeping its output signal stable near operating resistance welding machines.
• As an inductive sensor resistant to electromagnetic interference, it does not generate false triggers during the welding cycle.
• Proven to be resistant to electromagnetic fields, it operates reliably even in the immediate vicinity of the coils and current-carrying cables of a welding machine.
• It is suited to operation in a strong electromagnetic field, typical of resistance welding and arc welding.

When to choose this model

• When the sensor must operate in an industrial resistance-welding machine exposed to harsh operating conditions.
• If reliable part detection is required in a resistance-welding machine.
• When you need a sensor for welding process automation and component-presence monitoring.
• When part-position monitoring is needed in an automated welding process.

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.