Fork Sensor WFS3-40P415 SICK – 3 mm Gap, PNP, M8 Connector
Overview
The WFS3-40P415 fork sensor is specifically designed for label gap detection in high-speed labeling applications. Its slim fork design allows direct installation at the edge of the label dispenser, enabling accurate label detection even with transparent materials or low contrast.
The sensor supports dynamic teach-in, allowing threshold configuration while the label web is running. This reduces setup time and improves detection accuracy. With a fast response time of 50 µs, the sensor ensures high reliability in high-speed labeling environments.
Product Overview
The WFS3-40P415 is a fork-type photoelectric sensor from SICK (Germany), part of the WFS3 series, designed for automatic labeling applications in the packaging industry.
Its slim fork housing allows mounting directly at the edge of labeling machines, improving detection accuracy.
Compared to the WFS3-40P115, the WFS3-40P415 features a standard M8 4-pin connector, enabling quick installation and easy replacement without rewiring. This makes it ideal for systems requiring flexible maintenance and modular connectivity.
Key Features
- Fork width: 3 mm
- Fork depth: 42 mm
- Output: PNP, max. 100 mA
- Connection: M8 4-pin connector (detachable, easy replacement)
- Operating temperature: –20°C to +60°C
- Durable plastic housing suitable for industrial environments
Technical specifications WFS3-40P415
| Parameter |
Value |
| Operating principle |
Photoelectric through-beam (fork type) |
| Fork width |
3 mm |
| Fork depth |
42 mm |
| Minimum detectable object (MDO) |
2 mm |
| Supply voltage |
10 – 30 V DC |
| Current consumption |
Approx. 20 mA (no load) |
| Output |
PNP |
| Max. output current |
100 mA |
| Response time |
≤ 50 µs |
| Initialization time |
≤ 20 ms |
| Switching frequency |
Up to 10 kHz |
| Switching mode |
Light/Dark switching (via push button) |
| Connection |
M8, 4-pin connector |
| Light source |
Infrared LED |
| Ambient operating temperature |
–20°C to +60°C |
| Storage temperature |
–30°C to +80°C |
| Weight |
Approx. 36 g |
Source: SICK Product Datasheet – WFS3-40P415 (Part No. 6043919). Dowload datasheet link
Industrial applications of the WFS3-40P415
The WFS3-40P415 is a reliable solution for industrial applications requiring high accuracy and dependable performance:
- Automatic labeling systems: Detect label gaps on continuous label webs. Dynamic teach-in allows configuration without stopping the production line.
- Food & pharmaceutical packaging: Verify label presence, detect double labels, and count labels to trigger timely roll replacement.
- Printing and packaging industry: Enable continuous label cutting without print marks, ensuring precise synchronization thanks to the 50 µs response time.
- Logistics and sorting systems: Detect thin materials such as documents and paper on high-speed conveyors.
- Easy installation & maintenance: The M8 connector enables quick replacement without rewiring, reducing downtime.
Comparison of WFS3-40P415 with WFS3-40P115
| Criteria |
WFS3-40P415 |
WFS3-40P115 |
| Part number |
6043919 |
6055433 |
| Connection |
M8 4-pin connector |
Fixed cable |
| IO-Link* |
Not supported |
Not supported |
| MDO |
2 mm |
2 mm |
| Output |
PNP |
PNP |
| Suitable for |
Flexible installation & maintenance |
Fixed installations, cost optimization |
Recommendation
- Choose WFS3-40P415 for applications requiring quick installation and easy maintenance (M8 connector).
- Choose WFS3-40P115 for fixed installations with cost optimization requirements.
Frequently Asked Questions about the WFS3-40P415 (FAQ)
Q1. What materials can the WFS3-40P415 detect, and what is the minimum detectable size?
A: The sensor operates on a through-beam fork principle using an infrared light source. It is designed to detect label gaps and thin materials such as paper, adhesive labels, and film (including semi-transparent materials). The minimum detectable object (MDO) is 2 mm, depending on material thickness and optical properties.
Q2. Is the WFS3-40P415 suitable for high-speed applications?
A: Yes. With a response time of ≤ 50 µs and a switching frequency of up to 10 kHz, the sensor ensures accurate detection of label gaps in high-speed labeling systems without missing signals.
Q3. How is the teach-in function configured? Does the machine need to stop?
A: The sensor supports both static and dynamic teach-in. In practice, dynamic teach-in is commonly used, allowing threshold configuration while the material is moving. This eliminates downtime and ensures optimal performance under real operating conditions.
Q4. Does the WFS3-40P415 support IO-Link?
A: No. The WFS3-40P415 does not support IO-Link. It uses a standard PNP digital output and is configured via onboard teach-in. For IO-Link functionality, other variants within the WFS3 series must be selected.
Q5. Where can I purchase the WFS3-40P415 in Vietnam?
A: The WFS3-40P415 is an original product from SICK (Germany), distributed through authorized partners in Vietnam. Customers should ensure the product includes valid CO/CQ documentation and technical support to guarantee reliability.
Contact Information – Purchase WFS3-40P415 Fork Sensor
AUMI – Official authorized distributor of SICK in Vietnam. Full manufacturer warranty, CO/CQ documents, and 24/7 technical support.
📞 Hotline: 0917 991 589 (Hanoi) | 0932 226 100 (Ho Chi Minh City)
📧 Email: [email protected]
🌐 Website: https://aumi.com.vn/
Addresses:
- Hanoi: B44, Villa Area, Viet Hung Urban Zone, Long Bien District
- Ho Chi Minh City: 2nd Floor, HS Building, 260/11 Nguyen Thai Binh Street, Tan Binh District
- Da Nang: 9th Floor, PV Bank Building, 2 – 30 Thang 4 Street, Hoa Cuong Ward
