The Keyence EH-440 Sensor Head is a high-performance unshielded proximity sensor designed for detecting ferrous metals with precision and reliability. Built in a cylindrical, threaded form factor, the EH-440 is well-suited for installation in a wide range of industrial applications, from assembly lines to heavy-duty inspection systems. Its non-shielded design enables a broader detection field, making it highly effective in identifying larger targets while maintaining excellent accuracy.

A standout feature of the EH-440 is its long detection range. The sensor can detect ferrous targets up to 36 mm, with a stable detecting range of 0 to 18 mm. This extended reach reduces the need for exact positioning of objects, simplifying installation and making it adaptable to diverse setups. The sensor’s reliable hysteresis of only 0.1 mm and repeatability of 0.037 mm ensure that detection remains accurate and repeatable, even in high-speed automation processes.

The EH-440 also excels in environments where temperature fluctuations are common. With a temperature characteristic of ±10% across a wide range from -10 to +60 °C, it ensures consistent detection accuracy in both controlled indoor facilities and harsher outdoor or semi-exposed environments. This reliability translates into fewer errors, reduced downtime, and improved overall productivity.

Engineered for rugged durability, the EH-440 is rated IP67, which means it is fully protected against dust ingress and capable of withstanding water exposure. This makes it suitable for use in manufacturing areas with high levels of dust, oil mist, or cleaning processes involving water spray. Combined with a robust construction and high-quality materials, the EH-440 delivers long service life even in demanding conditions.

The sensor is optimized for ferrous metal detection, making it ideal for monitoring machinery parts, detecting metallic components in automated lines, and quality control processes. It can also respond to nonferrous metals (with reduced sensitivity), further expanding its versatility across industries. Applications can be found in automotive assembly, stamping, robotics, and other precision-driven sectors.

Weighing approximately 280 g including mounting nuts and a 3-meter cable, the EH-440 is easy to install and integrate into existing systems. Its threaded cylindrical body allows secure mounting, while the long cable provides flexibility in sensor placement without the need for additional extensions.

In conclusion, the Keyence EH-440 combines extended detection distance, high precision, rugged reliability, and temperature stability in a compact design. By offering dependable performance in harsh environments, it provides manufacturers with a sensor that improves efficiency, reduces maintenance, and supports precise automation in a variety of industrial applications.