
Product Introduction
Our U-type Photoelectric Sensor CZ-170 is a high-precision, environment-resistant U-shaped photoelectric sensor series manufactured in Suzhou. This slot type sensor adopts U-groove optical structure, and includes sub-models CZ-171A, CZ-171A-P, CZ-171B, CZ-171B-P, CZ-172A, CZ-172A-P, CZ-172B, CZ-172B-P. It can work stably even under strong sunlight and incandescent light interference, supporting reliable object detection for industrial automation.
Key Benefits
►Strong anti-light interference: It works stably under sunlight up to 100,000lx or incandescent light up to 80,000lx, applicable for sightseeing elevators with direct sunlight exposure.
►Wide temperature adaptability: It operates normally at -30℃ low temperature environment, with pre-power requirement for 10 minutes below -25℃.
►Fast response speed: 0.5ms high-speed response supports rapid detection of fast-moving workpieces.

Technical Specifications
|
Item |
Parameters |
|
Product Series |
CZ-170 U-type Photoelectric Sensor |
|
Sub Models |
CZ-171A, CZ-171A-P, CZ-171B, CZ-171B-P, CZ-172A, CZ-172A-P, CZ-172B, CZ-172B-P |
|
Detection Distance |
30mm (CZ-171 series), 50mm (CZ-172 series) |
|
Minimum Detectable Object |
φ6mm opaque object |
|
Repeat Accuracy |
Less than 1mm (perpendicular to detection axis) |
|
Power Supply Voltage |
12V DC ~ 24V DC ±10% |
|
Output Type |
NPN open collector / PNP open collector |
|
Response Time |
0.5ms max |
|
Protection Class |
IP65 (IEC) |
|
Operating Temperature |
-30℃ ~ +55℃; Storage: -30℃ ~ +70℃ |
|
Operating Humidity |
35%RH ~ 85%RH; Storage:35%RH ~85%RH |
|
Ambient Illuminance |
Max 100,000lx sunlight, max 80,000lx incandescent lamp |
|
Dimension |
CZ-171: W60mm × H85mm × D20mm; CZ-172: W80mm × H85mm × D20mm |

Why Choose This Machine
Our U-type Photoelectric Sensor CZ-170 series delivers stable detection under harsh lighting and cold environments. Compared with ordinary photoelectric sensors, it is less affected by strong sunlight and has IP65 protection. The built-in metal mounting sleeves simplify installation and prevent loosening during long-time continuous operation, ideal for outdoor and low-temperature automation equipment.
Part of Your Smart Factory
This U-shaped photoelectric sensor acts as a key sensing node in smart factory automation systems. It can detect workpiece passing status and transmit real-time signals to PLC and control systems. It helps realize automatic counting, position confirmation and safety interlock, supporting unmanned production, reducing manual inspection work and improving the whole line automation level.


Applications & Components
►Sightseeing elevator position detection: It keeps stable detection under strong sunlight exposure for elevator position feedback.
►Automated production line workpiece counting: It senses workpiece passing signals to realize automatic counting for assembly lines.
►Conveyor belt part positioning: It detects workpiece arrival to trigger subsequent processing actions on conveying equipment.
FAQ
Q: Can this sensor work under direct sunlight?
A: Yes. It can resist sunlight up to 100,000lx and incandescent light up to 80,000lx, suitable for sightseeing elevators with direct sunlight.
Q: Q2: What output types are available for this series?
A: It provides both NPN and PNP open collector output options, including multiple sub-models to match different PLC control systems.
Q: What is the repeat accuracy of this sensor?
A: Its repeat accuracy is less than 1mm perpendicular to the detection axis, delivering stable and consistent position detection results.
Q: Are there different detection distances in this product series?
A: Yes. One group has 30mm detection distance, while another group reaches 50mm for different application needs.
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