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The LLK VOLUMETRIC SCALE is a system for measuring materials transported on belts. It can be used to measure ores, lumps, bulk (organic or not) and others. The LLK Volumetric Scale is able to measure, in a versatile and robust way, the volume of material transported, providing information in accumulated and instantaneous value. It is ideal for production control, measuring the quantity produced and controlling inputs and outputs of material in process steps.


It has a series of structural, technological and operational advantages compared to integrating scale systems based on conventional load cells, such as not having contact with the belt, not having moving parts and having automated calibration without the need for operator intervention.


Product Features and Specifications

  • Measurement of material volume on conveyor belts;

  • Availability of the instantaneous volume value, as well as accumulated;

  •  System without moving parts and without contact with the conveyor and belt;

  • System calibration is automated, by local command or via network, without contact with the belt;

  • Possibility of installation on inclined belts, with short space between rollers or curves;

  • Delivered with a structure made to measure for the transporter;

  • Protection structure for the system elements that will work in an industrial environment;

  • Delivered with mounted electrical panel, providing the necessary signals, in 100/200V;

  • Panel and frame drawings are available;

  • Available for communication in several protocols such as Profibus DP, Modbus TCP, Ethernet/IP or even via analog signal;


Operation principle

The measurement principle used is based on analyzing the lighting deformation for marking the material in images captured by a high resolution camera. The image is generated by applying a linear laser emitter installed at a specific angle in relation to the camera. This laser generates a line on the conveyor that is used as a reference for the reading.


The inclination of the laser in relation to the camera causes a transported volume, when passing through the laser beam, to generate a distortion in the reference line and through this distortion the system is able to measure the width and height of the material being transported and, combined with material velocity, obtain accurate volume and flow measurements.

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