Efficiently detect parts with the SICK WFM30-40P121 (6037823) Fork Sensor. Featuring 30mm width, 4kHz switching frequency, and PNP output for rapid industrial tasks.

SKU SICK-6037823 Category SICK WFM

Product Description

Product Overview

Sensor Type: Fork sensor (Photoelectric slot sensor).
Functional Principle: Optical detection with integrated sender and receiver.
Fork Width: 30 mm.
Fork Depth: 42 mm.
Light Source: Visible red light (LED).
Switching Output: PNP (Dark switching).
Connection: 2-meter cable, 3-wire.
Enclosure Rating: IP67.

Product Description

The SICK WFM30-40P121 (Part No. 6037823) is a high-performance fork-style photoelectric sensor engineered for precision and rapid response in industrial automation. Unlike standard photoelectric sensors, the WFM series integrates the sender and receiver into a single, robust aluminum housing. This “plug-and-play” design eliminates the need for complex alignment, significantly reducing installation time and commissioning effort.

The sensor operates using a visible red light beam across a 30mm fork width, making it exceptionally reliable for detecting small parts, labels, and various objects in high-speed production environments. With a switching frequency of 4,000 Hz, it is capable of handling rapid throughput without compromising accuracy. The device features a PNP dark-switching output and is pre-wired with a 2-meter cable for flexible integration. Its rugged IP67-rated construction ensures durability against dust and water, while the all-round visible yellow LED indicator provides clear feedback on the switching status. This sensor represents a stable and cost-effective solution for tasks requiring consistent object detection within a compact form factor.

Key Performance Features

Rapid Switching Frequency: High-speed 4 kHz frequency ensures precise detection in fast-moving production lines.
No Alignment Needed: The fixed optical axis between sender and receiver guarantees immediate operation upon mounting.
Visible Red Light: Simplifies the setup process by allowing users to see exactly where the detection point is located.
360° Visibility: A bright yellow receive indicator is visible from all angles, providing constant process monitoring.
Rugged Housing: Durable aluminum construction with an IP67 rating makes it suitable for harsh industrial conditions.
Simple Commissioning: Fixed parameters allow for a “set and forget” installation without complex adjustments.

Ideal Applications

Production Processes: Detecting the presence and position of small parts on conveyors.
Packaging Industry: Label detection and monitoring of clear or opaque packaging materials.
Intralogistics: High-speed counting and sorting of items in warehouse automation.
Electronics Assembly: Monitoring the feeding of components and checking for part presence in jigs.
Quality Control: Checking for the correct placement of parts within a manufacturing sequence.

Features

Functional principle	Optical detection principle
Dimensions (W x H x D)	10 mm x 50 mm x 59.5 mm
Housing design (light emission)	Fork shaped
Fork width	30 mm
Fork depth	42 mm
Minimum detectable object (MDO)	0.8 mm
Light source	LED, visible red light
Adjustment	None

Mechanics/electronics

Supply voltage	10 V DC … 30 V DC ¹⁾
Ripple	< 10 % ²⁾
Current consumption	< 20 mA ³⁾
Switching frequency	4 kHz ⁴⁾
Response time	125 µs ⁵⁾
Stability of response time	± 15 µs
Switching output	PNP
Switching output (voltage)	PNP: HIGH = V_S – ≤ 1.5 V / LOW = 0 V NPN: HIGH = approx. V_S / LOW ≤ 1.5 V
Switching mode	Dark switching
Output current I_max.	100 mA
Initialization time	140 ms
Connection type	Cable, 3-wire, 2 m
Cable diameter	Ø 4 mm
Protection class	III ⁶⁾
Circuit protection	U_V connections, reverse polarity protected Output Q short-circuit protected Interference pulse suppression
Enclosure rating	IP67
Weight	Approx. 80 g … 190 g ⁷⁾
Housing material	Metal, Aluminum

¹⁾ Limit values, reverse-polarity protected, operation in short-circuit protected network: max. 8 A.
²⁾ May not exceed or fall below U_v tolerances.
³⁾ Without load.
⁴⁾ With light/dark ratio 1:1.
⁵⁾ Signal transit time with resistive load.
⁶⁾ Reference voltage DC 50 V.
⁷⁾ Depending on fork width.