LONGJOIN JL-118A photoelectric sensor With Light Adjustment Bar

I. Product Positioning and Market Background

The JL-118A is the entry-level model in the LongJoin photoelectric sensor series, primarily designed for:

Automation retrofit projects with limited budgets

General applications with low detection accuracy requirements (±1mm)

Electrified upgrade scenarios replacing traditional mechanical limit switches

II. Core Parameter Comparison Table

Features JL-118A JL-118B (Upgraded Version)

Sensing Distance 3-20cm 5-30cm

Adjustment Accuracy ±10% ±5%

Response Time 2ms 1ms

Protection Rating IP54 IP67

Operating Temperature -20°C to 60°C -25°C to 70°C

Price Range ￥85-120 ￥130-180

III. Mechanical Structure Analysis

Light Adjustment Mechanism:

Adopts a sliding rheostat (not a digital encoder)

Adjustment Torque: 0.2N·m ±10%

Service Life: ≥50,000 adjustments

Optical Components:

IV. Typical Application Scenarios

Basic Conveyor Belt Inspection:

Packaging Box Passage Detection

Empty Box Rejection Signal Trigger

Simple Positioning Control:

Cylinder End-of-Stroke Detection

Door Open/Close Status Monitoring

Alternative Solution:

In dusty environments, it is recommended to install a protective cover (Part No.: JL-AS01)