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The LJ-V7300 is an ultra-long-range 2D/3D laser scanner that operates at industry-leading speeds. It is heavily utilized for in-line profile measurement and 3D inspection.
Utilizes a 405 nm short-wavelength blue semiconductor laser
Combined with a dedicated, custom CMOS image sensor and controller
The sensor head features an IP67-rated dustproof and waterproof enclosure
In terms of optical routing and material adaptability, this specific model demonstrates exceptional survival capabilities on the factory floor. It utilizes a short-wavelength blue light source that barely penetrates material surfaces, paired with high-grade dustproof and waterproof enclosure housing.
Even inside harsh workshops filled with constant mechanical shaking, dense oil mist, and severe ambient light, it maintains steady data output through its fully sealed light-receiving pathways. Operating in tandem with a dedicated intelligent central processing unit via heavily shielded interconnecting cables, it automatically normalizes and restores crisp physical boundaries across complex surfaces with mixed dark and bright reflections, eliminating data dropping to serve as an indispensable hardware pillar in automated inspection networks.
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
KEYENCE LJ-V7300 Sensor Head Manuals, Datasheets, Drivers, Link
Important Notice: Other accessories, manuals, cables, calibration data, software, etc. are not included with this equipment unless listed in the above stock item description.
Lithium-ion Battery & New Energy Industry
Installed behind coaters, rollers, or die-cutting machines to measure the thickness, edge profile, and coating step-height of high-speed battery electrodes.
Automotive Manufacturing
Integrated onto the terminal joint of welding robots or along final assembly lines for car body panel gap and flush measurements, as well as BIW (Body-in-White) trajectory guidance.
Tire & Rubber Industry
AUsed for cross-sectional dimensional measurements of extruded rubber treads and detecting extrusion bulb/dent defects on tire sidewalls post-molding.
Electronics & Semiconductor Packaging Industry
Evaluates the warpage of large server motherboards and the insertion heights of components on automotive ECU production lines.
Aerospace
Inspects surface flatness and porous profile integrity after CNC milling of composite structures or honeycomb cores used in aircraft wings and fuselages.
Wind Power
Installed on the edges of large turbine blade molds or via gantries to perform 3D scanning and profile validation on the leading and trailing edges of fiberglass blades.
When operating the KEYENCE LJ-V7300, looking directly into the receiver window is strictly prohibited, and the front lens must be regularly cleaned with anhydrous ethanol to mitigate ambient stray light and dust interference , a cooling jacket is required when measuring high-temperature workpieces to keep the probe housing within the +45 °C operating limit.
Additionally, the head must be secured onto a rigid bracket free from low-frequency severe vibrations to prevent alignment shifts, while cables should avoid excessive bending, be routed in separate conduits from power lines, and have the controller box properly grounded to isolate electrical surges and ensure stable optocoupler circuit operation.
Alternative Names
Alternative Names
LJ V7300LJ-V73O0LJ-V730OLJ-V73OO
Technical notes
Technical notes
The KEYENCE LJ-V7300 sensor head is a data acquisition probe based on the 405 nm blue semiconductor laser diffuse reflection principle, providing a Z-axis vertical span of ±145 mm and a trapezoidal horizontal field of view from 110 to 240 mm at a reference distance of 300 mm. At standard room temperature, the probe maintains a Z-axis measurement variation within 5 µm, achieves a minimum hard-triggered data sampling interval of 16 µs, and features an IP67-rated aluminum metal enclosure that withstands 15 G mechanical shocks and 10,000 lux ambient light interference, making it suitable for multi-dimensional surface dimension verification of high-temperature, black rubber, or translucent materials in automated production line assembly.
It is an ultra-high-speed blue laser inline profilometer head from Keyence's LJ-V7000 series, used for high-precision inline 3D profile and dimensional measurements.
What is the working principle of LJ-V7300?
It operates on the laser triangulation principle, projecting a line laser onto the object's surface and capturing the reflected light via an internal CCD/CMOS to acquire cross-sectional profiles.
What are the specific on-site applications of LJ-V7300?
It is commonly used for weld seam tracking/inspection, car body panel gap/flush measurement, tire rubber tread profiling, and inline steel bar dimensional measurement.
How to properly install and secure the LJ-V7300 head?
It is usually mounted onto a rigid gantry frame directly above the production line or the 6th-axis adapter plate of an industrial robot, ensuring the laser line is perpendicular to the object's moving direction.
Can the LJ-V7300 sensor head operate independently on its own?
No, it is a sensor head and must be connected to a matching LJ-V7001 controller and dedicated cables for power, signal processing, and data output.
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