Photoelectric Sensors
SICK HL18-P4A3AAS06 Photoelectric sensor
SICK HL18-P4A3AAS06 energetic diffuse photoelectric sensor, PNP, part 1081580. 18 mm-format housing for conveyor and machine tool object detection.
Overview
The SICK HL18-P4A3AAS06 (part number 1081580) is an energetic diffuse photoelectric sensor in an 18 mm-format housing with PNP output. The robust cylindrical format and strong optical reserves make it a practical choice for general object detection on machines and conveyors.
How It Works
The sensor evaluates the light reflected by the target: when the returned intensity crosses the threshold, the output switches. The enhanced optical design supports reliable detection even when ambient light at the installation site is unfavorable.
Key Features
- 18 mm-format housing mounts through a standard bore
- PNP switching output (P order code)
- Part number 1081580
- Energetic diffuse detection with strong excess gain
- Good immunity to ambient light interference
- Simple sensitivity setting for commissioning
Typical Applications
- Object detection on conveyor side frames
- Presence checks on machine tool fixtures
- Monitoring of parts in metalworking equipment
- Detection on transport and handling systems
- General sensing where a cylindrical bore is available
Specifications
Attribute | Value |
|---|---|
Model | SICK HL18-P4A3AAS06 |
Part number | 1081580 |
Detection principle | Energetic diffuse photoelectric |
Housing format | 18 mm cylindrical format |
Output type | PNP switching output |
Installation and Setup Notes
Mount the barrel through the bore with even nut pressure to protect the housing, and route the cable with strain relief. Align the optical face toward the target path, and avoid clipping the beam cone with the mounting hole edge. Set the sensitivity using the darkest production target and re-verify after machine maintenance.
Frequently Asked Questions
Does the HL18 need a reflector?
No. It is a diffuse sensor responding to light reflected by the object itself.
How does it behave with shiny metal targets?
Shiny surfaces reflect strongly but directionally; test the installation angle so the reflection reaches the receiver, or use a small tilt.
What is the advantage of the 18 mm format?
It mounts through standard control-panel and machine-frame bores, using hardware that workshops already stock.
Related Photoelectric Sensors
For the rectangular enhanced-diffuse family, see the SICK GRTE18-P1142. For another cylindrical photoelectric option, see the SICK WL11-2P2430.
