Structured Manufacturing Data (2026)

Photo-eye Sensors

Based on aggregated insights from structured factory profiles within the CNFX directory, the standard Photo-eye Sensors used in the Machinery and Equipment Manufacturing sector typically supports operational capacities ranging from standard industrial configurations to heavy-duty production requirements.

Technical Definition & Core Assembly

A canonical Photo-eye Sensors is characterized by the integration of Transmitter Unit and Receiver Unit. In industrial production environments, manufacturers listed on CNFX commonly emphasize Polycarbonate housing construction to support stable, high-cycle operation across diverse manufacturing scenarios.

Non-contact optical sensors that detect the presence, absence, or position of objects on an induction conveyor using light beams.

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Product Specifications

Technical details and manufacturing context for Photo-eye Sensors

Definition
Photo-eye sensors are critical components of induction conveyor systems that use light emission and reception to detect objects on the conveyor line. They provide precise object detection for automated control of conveyor operations, including start/stop functions, object counting, positioning verification, and jam detection. These sensors enable the conveyor system to respond to the presence or absence of materials without physical contact.
Working Principle
Photo-eye sensors operate by emitting a light beam (typically infrared, red, or laser) from a transmitter unit and detecting the beam with a receiver unit. When an object interrupts the light beam between transmitter and receiver, the sensor detects the change in light reception and sends a signal to the conveyor control system. Some models use reflective principles where the transmitter and receiver are in the same housing, detecting light reflected from objects or background surfaces.
Common Materials
Polycarbonate housing, Stainless steel mounting brackets, Optical glass lenses, Electronic circuit boards
Technical Parameters
  • Sensing distance range, typically from 0.1mm to 50m depending on sensor type and model (mm) Standard Spec
Components / BOM
  • Transmitter Unit
    Emits the light beam for object detection
    Material: Polycarbonate housing with optical glass lens
  • Receiver Unit
    Detects the light beam and converts it to electrical signals
    Material: Polycarbonate housing with photodiode/transistor
  • Mounting Bracket Part
    Secures the sensor to the conveyor frame at precise positions
    Material: Stainless steel or aluminum
  • Signal Processing Circuit
    Processes detection signals and controls output to conveyor system
    Material: Printed circuit board with electronic components

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Photo-eye Sensors.

Photoelectric Sensors Optical Sensors induction conveyor photo-eye sensor non-contact optical object detection polycarbonate housing photo sensor stainless steel mount photo-eye optical glass lens industrial sensor

Applied To / Applications

This component is essential for the following industrial systems and equipment:

Induction Conveyor
View system integration details

Industrial Ecosystem & Supply Chain Structure

Complementary Systems
Downstream Applications
Specialized Tooling

Application Fit & Sizing Matrix

Operational Limits
pressure: Atmospheric (non-pressurized applications)
other spec: Sensing range: 0.1m to 20m (depending on model), Response time: 0.5ms to 10ms, Light source: Infrared (850-950nm) or visible red (650nm), Protection rating: IP67/IP69K for washdown environments
temperature: -20°C to +70°C (operating), -40°C to +85°C (storage)
Media Compatibility
✓ Plastic packaging materials ✓ Metal machine parts ✓ Transparent glass containers
Unsuitable: High-vibration environments with misalignment risk
Sizing Data Required
  • Required sensing distance (mm)
  • Object size and detection resolution (mm)
  • Conveyor speed and required response time (m/s, ms)

Reliability & Engineering Risk Analysis

Failure Mode & Root Cause
Lens Contamination
Cause: Accumulation of dust, dirt, or moisture on the lens surface, obstructing the light beam and causing false readings or signal loss.
LED Degradation
Cause: Gradual reduction in light output due to aging of the emitter or receiver LEDs, often accelerated by excessive heat, voltage spikes, or prolonged operation beyond rated cycles.
Maintenance Indicators
  • Intermittent or erratic object detection despite clear line of sight
  • Visible accumulation of debris, condensation, or physical damage on the sensor lens or housing
Engineering Tips
  • Implement regular cleaning schedules using appropriate, non-abrasive methods and ensure proper sealing or purging in dusty or humid environments to prevent lens contamination.
  • Install surge protection devices and ensure stable, within-specification power supply to protect internal electronics from voltage fluctuations and thermal stress.

Compliance & Manufacturing Standards

Reference Standards
ISO 13849-1: Safety of machinery - Safety-related parts of control systems ANSI/UL 508: Standard for Industrial Control Equipment IEC 61496-1: Safety of machinery - Electro-sensitive protective equipment - Part 1: General requirements and tests
Manufacturing Precision
  • Alignment accuracy: +/- 0.5 degrees
  • Response time: +/- 10 milliseconds
Quality Inspection
  • Environmental sealing test (IP rating verification)
  • Optical performance test (light intensity and beam alignment verification)

Factories Producing Photo-eye Sensors

Manufacturer profiles with relevant production capability in China

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Manufacturer listings support early research and capability understanding. They are not certification, ranking, or transaction guarantees.

Technical documentation
4/5
Manufacturing capability
4/5
Inspection readiness
5/5
Supplier transparency
3/5

These scores are example evaluation dimensions, not real customer ratings, country-specific buyer feedback, or live inquiry activity.

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Frequently Asked Questions

What are the main applications of photo-eye sensors in machinery manufacturing?

Photo-eye sensors are primarily used for object detection, counting, and positioning on automated production lines, particularly on induction conveyors where they ensure precise material handling without physical contact.

How does the polycarbonate housing benefit industrial photo-eye sensors?

Polycarbonate housing provides excellent impact resistance, chemical resistance, and durability in harsh manufacturing environments while maintaining optical clarity for reliable light transmission.

What maintenance is required for photo-eye sensors with optical glass lenses?

Regular cleaning of optical glass lenses is essential to prevent dust or debris accumulation that could interfere with light beam accuracy. No mechanical maintenance is typically needed due to the non-contact design.

Can I contact factories directly on CNFX?

CNFX is an open directory, not a transaction platform. Each factory profile provides direct contact information and production details to help you initiate direct inquiries with Chinese suppliers.

Data basis: CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks for Machinery and Equipment Manufacturing.

Data Basis

CNFX manufacturer profiles, technical classification, publicly available product information, and ongoing plausibility checks.

Preliminary Technical Classification
This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

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