SICK LL3-DR03 Fiber-Optic Cable – High-Flexibility Solution for Precision Detection

The SICK LL3-DR03 Fiber-Optic Cable is a compact and durable sensing component designed for applications requiring precise and repeatable object detection. Built for robotic and flexible automation systems, it combines high mechanical flexibility with stable optical performance. With a maximum sensing distance of 510 mm and the ability to detect objects as small as 0.015 mm, it supports various SICK amplifiers to meet diverse system requirements. The stainless-steel fiber head and lightweight construction ensure reliable operation even in space-limited or vibration-prone environments, making it ideal for integration into complex machinery.

Engineered for long-term durability, the SICK LL3-DR03 provides reliable detection in both static and dynamic environments. Its 2-meter multi-fiber design and tight bending radius allow for smooth movement in robotic joints and conveyor systems without signal loss. The axial light emission and wide dispersion angle enable accurate detection across reflective or uneven surfaces. With easy installation and minimal maintenance, this fiber-optic cable enhances system precision, reduces downtime, and supports consistent quality control in automated assembly, inspection, and pick-and-place operations.

Why SICK LL3-DR03?
Because the SICK LL3-DR03 transforms precision sensing into effortless performance. Its ultra-flexible fiber design and compact stainless-steel housing make it the go-to choice for robotics and space-limited setups. It delivers stable detection of micro-sized targets even under motion, ensuring smooth integration, long service life, and unwavering accuracy in any automation challenge.

What Problem Does It Solve?
The LL3-DR03 eliminates the struggle of achieving reliable detection in tight, dynamic, or high-vibration environments. It solves precision and flexibility issues by providing consistent signal transmission even during continuous motion—allowing manufacturers to maintain accuracy, prevent misreads, and achieve dependable quality control across complex, high-speed industrial systems.

Commercial Data – SICK LL3-DR03: 5308080

Commercial Data	Details
EAN Number	4047084152276
Weight	17 g
Country of Origin	Germany

The Applications of SICK LL3-DR03 Fiber-Optic Cable

1. Precision Detection in PCB Assembly Machines

In electronic manufacturing, placement accuracy is critical when handling miniature components on circuit boards. The SICK LL3-DR03 can be routed into tight machine spaces due to its small 3 mm sleeve and 4 mm bend radius, making it ideal for confined assembly heads. Its durable stainless-steel housing ensures consistent signal quality, even when exposed to vibration or rapid movements. This allows automatic pick-and-place systems to confirm micro-component presence with confidence, reducing alignment errors and boosting overall production efficiency.

2. Robotic Arm Object Verification

During automated assembly, robotic grippers often operate in motion and require flexible sensing for tiny targets such as screws or clips. The LL3-DR03 excels in this role with its high-flex fiber structure and 2 m length, maintaining signal integrity even during continuous arm rotation. Its 60° optical dispersion and precise light emission make it capable of detecting very small parts without contact. This enhances robotic performance by ensuring correct object pickup, part presence confirmation, and reduced false detections in high-speed environments.

3. Label Detection in High-Speed Packaging Lines

In packaging applications, labels or caps must be verified on moving products under limited space conditions. The LL3-DR03 provides a slim, adaptable sensing solution that fits easily into compact conveyor systems. With a sensing range up to 510 mm, it reliably detects labels, seals, or markings even when the conveyor is in motion. Its robust PMMA fiber structure prevents performance drop from bending, allowing stable quality control and reduced mislabeling or missing-package incidents on high-speed lines.

4. Tool Presence Monitoring in CNC Machines

In machining centers, verifying tool presence before operation is vital to avoid equipment damage. The SICK LL3-DR03 can be mounted near the spindle area, where heat and vibration levels are high. Its stainless-steel optical head and polyethylene sheath ensure long-term resistance to mechanical stress and temperature changes. The precise optical feedback helps confirm whether a cutting tool is correctly clamped before machining begins, preventing crashes, minimizing downtime, and improving machine reliability and operator safety.

Contact Us

For expert guidance before placing your order.
Warranty – 1-year warranty for your peace of mind.
Global Shipping – We ship worldwide with secure packaging and reliable delivery.
Technical Support – Contact us for professional after-sales technical assistance.

Feature	Details	Benefit
Device Type	Fiber-optic cable (Proximity system)	Enables accurate and stable object detection in compact spaces.
Functional Principle	Proximity sensing	Detects presence or absence of objects with high reliability.
Application	High flexibility for static and robotic dynamic use	Ideal for moving machinery, automation, and robotic arms.
Compatible Amplifiers	GLL70, WLL80, WLL180, GLL170(T)	Seamless integration across multiple SICK fiber amplifier platforms.
Maximum Sensing Range	Up to 510 mm (with WLL80 at 8 ms)	Offers wide detection coverage for diverse applications.
Minimum Detectable Object	0.015 mm	Perfect for micro-part detection and fine precision assembly.
Optical Fiber Head	Stainless steel smooth sleeve, axial emission	High durability and stable alignment in compact installations.
Fiber Material	Polymethylmethacrylate (PMMA)	Ensures excellent light transmission and mechanical strength.
Fiber Length	2,000 mm	Suitable for flexible and extended mounting distances.
Bending Radius	4 mm	Supports frequent bending motions without loss of performance.
Angle of Dispersion	60°	Covers a broader detection field for varied target geometries.
Operating Temperature	–40 °C to +70 °C	Reliable operation in harsh industrial conditions.
Included Accessories	Adapter sleeves (BF-WLL160-10) and fiber cutter (FC 5304141)	Ready-to-use package for fast setup and deployment.
Optical Fiber Type	Multi-fiber, 4 × Ø 0.25 mm sender/receiver	Delivers strong, consistent signal transmission.
Cable Sheath	Polyethylene (PE)	Protects fibers from wear, friction, and environmental factors.

SICK LL3-DR03 Fiber-Optic Cable – High-Flex Detection

Product Description