Optimize your automation with the SICK WFM30-40P321 (6037819) fork sensor. Features a 30mm fork width, fast 4kHz switching, and rugged IP67 aluminum housing

SKU SICK-6037819 Category SICK WFM

Product Description

Product Overview

Model Name: WFM30-40P321
Part Number: 6037819
Functional Principle: Optical detection principle (Fork sensor)
Fork Width: 30 mm
Fork Depth: 42 mm
Switching Output: PNP (Dark switching)
Connection Type: Male connector M8, 3-pin
Light Source: Visible red light (LED)
Enclosure Rating: IP67

Product Description

The SICK WFM30-40P321 (6037819) is a high-performance WFM series fork sensor designed for rapid “plug-and-play” integration in demanding industrial environments. By integrating both the sender and receiver into a single robust aluminum housing, it eliminates the need for time-consuming alignment, ensuring immediate operational readiness upon mounting. This sensor utilizes a visible red light beam to provide precise detection of objects as small as 0.8 mm.

Engineered for speed, the WFM30-40P321 features a high switching frequency of 4 kHz and a response time of just 125 µs, making it an ideal solution for high-speed production lines. Its design includes an all-round visible yellow receive indicator, allowing operators to monitor switching behavior from any angle. With its IP67-rated enclosure and resistance to ambient light, this PNP dark-switching sensor offers exceptional reliability and long-term stability. Whether used for part counting or presence monitoring, the WFM30-40P321 provides a simple, maintenance-free solution for complex detection tasks in factory automation and intralogistics.

Key Performance Features

High-Speed Response: 4 kHz switching frequency and 125 µs response time for rapid detection.
Precise Detection: Capable of detecting small parts with a minimum detectable object (MDO) of 0.8 mm.
Rugged Construction: Durable aluminum housing with an IP67 rating for harsh industrial conditions.
Easy Alignment: Visible red light and integrated sender/receiver eliminate complex setup.
360° Feedback: Yellow output indicator is visible from all sides for easy troubleshooting.
Circuit Protection: Includes reverse polarity, short-circuit, and interference pulse suppression.

Ideal Applications

Production Processes: Detecting and counting small parts on conveyor belts.
Labeling Machines: High-speed detection of labels or gap sensing.
Intralogistics: Monitoring the presence of objects in automated storage and retrieval systems.
Packaging Industry: Verifying product placement and packaging integrity.
Electronic Assembly: Detecting PCB edges or small components during high-speed assembly.

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	Connector M8, 3-pin
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.