WFM180-120N321 Fork Sensors – SICK Sensor

Product Overview

• Model Name: WFM180-120N321
• Part Number: 6037838
• Fork Width: 180 mm
• Fork Depth: 120 mm
• Switching Output: NPN (Light switching)
• Light Source: Visible red light (LED)
• Connection Type: Male connector M8, 3-pin
• Enclosure Rating: IP67
• Housing Material: Aluminum

Product Description

The SICK WFM180-120N321 (Part No. 6037838) is a high-performance fork sensor designed for demanding industrial automation tasks. Featuring a generous 180 mm fork width and 120 mm depth, this sensor is engineered to provide precise object detection across broad spans. As part of the WFM product family, it emphasizes “Plug-and-play” efficiency, requiring no manual sensitivity adjustments, which significantly reduces setup time and installation costs.

The sensor utilizes a highly visible red light LED for easy alignment and consistent performance. Its rugged aluminum housing and IP67 enclosure rating ensure durability in harsh environments, making it resistant to dust and water ingress. With an NPN switching output and a fast response time of 125 µs, the WFM180-120N321 is ideal for high-speed applications such as label detection, part counting, and monitoring production flows. The integrated M8 3-pin connector allows for simple integration into existing systems. This sensor combines simplicity with SICK’s legendary reliability, offering a cost-effective solution for detecting opaque objects without the complexity of traditional through-beam systems. It is the perfect choice for manufacturers seeking consistent performance and rapid deployment in diverse industrial sectors.

Key Performance Features

• Plug-and-Play Operation: Requires no sensitivity adjustment, allowing for immediate installation and use.
• Highly Visible Light Spot: Visible red light LED ensures quick and easy alignment during setup.
• High Switching Frequency: Operates at 4,000 Hz for reliable detection in high-speed production lines.
• Robust Aluminum Housing: Provides superior mechanical stability and resistance to vibration and impact.
• Precise Detection: Smallest detectable object (MDO) capability of 0.8 mm for high accuracy.
• Integrated Design: Emitter and receiver are fixed in one housing, eliminating the need for separate mounting and alignment.

Ideal Applications

• Labeling and Packaging: Detecting labels on bottles or containers with high precision.
• Part Counting: Monitoring the flow of small components on conveyor belts.
• Vibratory Bowl Feeders: Identifying presence or orientation of small parts during feeding.
• Edge Detection: Sensing the edges of material webs or opaque objects in handling equipment.
• Gap Monitoring: Detecting gaps between products to control machine timing and flow.
• Presence Sensing: General-purpose detection of opaque objects in manufacturing assemblies.

Features