The Keyence LJ-V7300 Sensor Head is a high-performance 2D/3D laser displacement sensor engineered to deliver exceptional accuracy, speed, and durability for advanced industrial applications. Designed for use with diffuse reflection mounting conditions, the LJ-V7300 enables high-precision surface profiling and dimensional measurement across a wide variety of materials and geometries.

One of the most notable attributes of the LJ-V7300 is its broad measurement capability. It offers a Z-axis (height) range of ±145 mm, with a total full scale of 290 mm, making it ideal for applications that demand reliable height measurement over large depth variations. On the X-axis, it provides a detection width ranging from 110 mm on the near side to 240 mm on the far side, delivering flexibility to accommodate both narrow and wide targets. This wide range ensures the sensor can handle components of varying sizes without sacrificing measurement precision.

Accuracy and repeatability are at the core of the LJ-V7300’s design. With a Z-axis repeatability of 5 µm and an X-axis repeatability of 60 µm, it provides reliable measurements even in critical inspection environments. The sensor also maintains excellent linearity, rated between ±0.05 to ±0.15% of full scale, ensuring that captured data closely reflects true dimensions. The profile data interval of 300 µm and sampling cycles as fast as 16 µs in high-speed mode allow for detailed, real-time surface analysis, making the LJ-V7300 well-suited for high-throughput production lines.

The sensor’s blue semiconductor laser with a 405 nm wavelength provides superior performance when measuring surfaces that may be challenging for traditional red lasers, such as metals or transparent materials. Classified as a Class 2 laser product, it balances power and safety with a maximum output of 4.8 mW, ensuring both efficiency and compliance with international standards.

Reliability in tough conditions is another major advantage. The LJ-V7300 is constructed from durable aluminum housing and carries an IP67 enclosure rating, offering complete protection against dust and water ingress. It is resistant to ambient lighting up to 10,000 lux, capable of withstanding vibration (1.5 mm amplitude for 3 hours in all directions), and shock rated to 15 G/6 ms, ensuring long-term stability in demanding industrial environments. Operating within a temperature range of 0 to +45 °C, it adapts easily to factory conditions without compromising performance.

Weighing approximately 1,000 g, the sensor provides robust functionality while remaining compact enough for integration into automated systems.

In summary, the Keyence LJ-V7300 Sensor Head delivers a powerful combination of wide measurement capability, precision, speed, and ruggedness. It is the perfect solution for industries requiring high-speed 3D profiling, surface inspection, dimensional analysis, or quality assurance, ensuring accurate and repeatable results even in challenging production environments.