Baomain Capacitive Proximity Switch LJC18A3 1-10mm Detect 47in Cable

Description

Product Overview

The Baomain LJC18A3 is a high‑performance capacitive proximity switch designed for demanding industrial environments. Its cylindrical 18mm head houses a precision capacitance sensor that can detect both metal and non‑metallic objects within a 1‑10mm range. Constructed from a durable combination of metal, plastic, and alloy, the sensor offers excellent resistance to wear, corrosion, and impact, ensuring a long service life even under harsh conditions.

Equipped with a 47‑inch (120 cm) cable, the switch provides flexible installation options for a wide variety of machinery and control panels. The cable is shielded to reduce electromagnetic interference, guaranteeing stable signal transmission. The device operates on a DC supply of 10‑30 V and delivers a PNP normally‑open (NO) output capable of handling up to 200 mA, making it compatible with most PLCs and automation controllers.

Temperature tolerance ranges from –25 °C to 65 °C, allowing reliable performance in both cold storage facilities and heated production lines. The compact dimensions of 7.5 × 3 cm (3″ × 1.2″) enable easy mounting in confined spaces, while the 120 g net weight keeps the overall system lightweight.

Designed for versatility, the LJC18A3 can be used in applications such as material handling, robotic end‑effectors, conveyor monitoring, and safety interlocks. Its fast response frequency of 100 Hz ensures timely detection, reducing the risk of missed events in high‑speed operations.

Usage

This capacitive proximity switch excels in environments where reliable object detection is critical. In manufacturing lines, it can monitor the presence of workpieces on a conveyor, triggering downstream processes only when the part is correctly positioned. In robotic applications, the sensor can serve as a touch‑free limit switch, providing precise positioning feedback without physical contact.

Because the sensor detects both conductive and non‑conductive materials, it is suitable for detecting plastic containers, glass bottles, or metal components, making it a flexible choice for mixed‑material production lines. The 47‑inch cable length allows the sensor to be mounted away from the control cabinet, reducing wiring complexity and simplifying maintenance.

The device’s PNP NO output integrates seamlessly with standard PLC input modules, eliminating the need for additional signal conditioning. Its low power consumption (10‑30 V DC) helps reduce overall energy usage, an important factor for sustainability‑focused facilities.

Engineered to operate in temperatures from –25 °C to 65 °C, the switch can be deployed in refrigerated warehouses, outdoor processing plants, and heated assembly areas without performance degradation. Its robust construction also makes it resistant to dust and moisture, complying with typical industrial enclosure standards.

Why Choose Us

Choosing the Baomain LJC18A3 means selecting a sensor backed by rigorous quality assurance processes. Each unit undergoes comprehensive testing for electrical performance, environmental resilience, and mechanical durability before leaving the factory. This commitment to quality translates into a lower total cost of ownership for our customers.

Our sensors are manufactured using premium materials that balance strength and weight, ensuring that the device can withstand vibration and shock common in industrial settings. The alloy housing protects the internal circuitry from impact, while the plastic components provide insulation and reduce the risk of short circuits.

We provide detailed technical documentation, including wiring diagrams, installation guides, and performance curves, to help engineers integrate the sensor quickly and correctly. In addition, our responsive technical support team is available to assist with any integration challenges, offering troubleshooting advice and application recommendations.

Baomain stands behind its products with a comprehensive warranty and a clear return policy, giving customers confidence in the reliability of their purchase. Our after‑sales service includes firmware updates, calibration assistance, and spare part availability, ensuring long‑term operational continuity.

Key Features

• Detects metal and non‑metal objects from 1‑10mm, providing versatile material sensing.
• Robust 47‑inch shielded cable simplifies installation and reduces signal noise.
• PNP normally‑open output (200 mA) compatible with standard PLCs and controllers.
• Operates reliably from –25 °C to 65 °C, suitable for diverse temperature environments.
• Backed by dedicated technical support and a comprehensive warranty for peace of mind.

FAQ

What types of materials can the sensor detect?

The LJC18A3 uses capacitive sensing technology, allowing it to detect both conductive (metal) and non‑conductive (plastic, glass) objects within its 1‑10mm range.

Can the sensor be used with a standard PLC?

Yes, the sensor provides a PNP normally‑open output that can be directly connected to most PLC input modules without additional signal conditioning.

What is the maximum cable length supported?

The supplied cable is 47 inches (120 cm) long, which is suitable for most installation scenarios. Longer cables can be used with proper shielding to maintain signal integrity.

Is the sensor suitable for outdoor applications?

While the sensor is designed for indoor industrial use, its temperature range of –25 °C to 65 °C and robust housing allow it to operate in protected outdoor environments.

What warranty does Baomain provide?

Baomain offers a standard one‑year warranty covering manufacturing defects, along with access to technical support and replacement parts during the warranty period.