NP2 Nut Presence Probe

The NP2 (Nut Presence Probe) is an accurate, durable and economical post-weld quality check sensor that detects the presence of a welded nut. A built-in Banner optical sensor measures the displacement of a stainless steel pin to assess bolt or fastener presence.

The versatile Banner sensor, operating on 10–30V DC, can also be used to monitor material thickness, as well as part presence and orientation in multi-component assemblies. The NP² sensor is available with complementary NPN and PNP solid-state outputs. The probe body is threaded (M18x1.0) for easy placement and adjustments within check or weld fixture tooling.

The NP2 is fully serviceable, allowing access to the stainless steel pin and spring. Service kits are available with pins, springs, seals, hardware and pin insertion tool.

The NP2 is available in two standard configurations. The M6-threaded shaft accepts user-designed attachments for maximum versatility (to the left). The NP² is also available with a stainless steel pin (to the right).

The NP2 can be used to check for part presence and material thickness with an accuracy of 0.25 mm (.0098 in.).

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