Laser photoelectric sensors BG 20N, BG 40N, BGX 40NHL and BG 40P — precise focus recognition with small light spots and reliable laser detection. Key benefits - Accurate focus recognition: Laser photoelectric technology delivers consistent, repeatable detection for tasks that require precise focus and spot accuracy. - Fine-target detection: Small light spots allow reliable sensing of small features, edges, or gaps that larger-beam sensors can miss. - Clear electrical option: BG 40P provides a PNP output for straightforward wiring to controllers and automation equipment. - Versatile deployment: Designed for a wide range of industrial and automation applications where precise, non-contact detection is required. What this solves - Reduces false triggers and misalignment by focusing detection on tiny targets rather than broad areas. - Improves inspection and positioning accuracy without contact or subject wear. - Simplifies system design when PNP logic is required (BG 40P), reducing adapter or interface needs. Important attributes - Function: Laser photoelectric sensing optimized for focus recognition (BG 20N, BG 40N, BGX 40NHL). - Electrical output: BG 40P includes PNP output for direct connection to PNP-compatible control systems. - Spot size: Small laser light spots enable detection of fine details and precise edges. - Performance: High-precision laser detection provides consistent and repeatable results across varied targets. - Compatibility: Suitable for integration into diverse automation, inspection, and positioning systems that require non-contact, high-resolution sensing. Practical use scenarios - Automated optical inspection: Use BG 20N, BG 40N, or BGX 40NHL for focus recognition to verify correct part orientation or surface features before downstream processing. - Pick-and-place and positioning: Use the small light spot to confirm exact part location or edge position for robotic pick-and-place operations; BG 40P with PNP output can connect directly to many robot controllers. - Labeling and micro-component detection: Detect the presence and precise location of tiny labels or electronic components on assembly lines where tight tolerances are critical. Why choose these sensors - They combine laser photoelectric accuracy with a focused light spot to handle tasks that require fine detection without physical contact. - Model options let you select the focus-optimized sensors (BG 20N, BG 40N, BGX 40NHL) or the PNP-output BG 40P according to your control and wiring needs. - Designed to improve detection reliability in applications where precision matters more than broad-area sensing. Models and functions at a glance - BG 20N — Laser photoelectric sensor for focus recognition; small light spot for fine detection. - BG 40N — Laser photoelectric sensor for focus recognition; small light spot for fine detection. - BGX 40NHL — Laser photoelectric sensor for focus recognition; small light spot for fine detection. - BG 40P — Laser photoelectric sensor with PNP output; suitable where PNP wiring is required. For precise, non-contact focus recognition and fine-feature detection, these laser photoelectric sensors provide focused spots and consistent laser-based accuracy to solve alignment, inspection, and positioning challenges.