• Hawk Technology LLC. - Vibration Control

Precision speed and length measurements are critical for optimization of production processes such as those used in rolling and paper mills. Proper utilization of these measurements can lead to lower production costs and higher product quality. Polytec velocimeters are a better choice than traditional contact wheel encoders for today's mill environment, providing better precision, lower maintenance costs, fast return on investment (ROI) and plug-in compatibility. More than 1000 Polytec Laser Surface Velocimeters (LSV) are installed worldwide and routinely measure speed and length of moving surfaces with extreme laser precision and without contact on coils, strips, tubes, fiber, film, paper, foil, composite lumber, or almost any other moving material, including hot steel. The best testament to our products' performance is our customers and their numerous successful LSV applications.



Cut-to-length Control
Cut to length in hot and cold environments, flying saws, extruders, and much more


Part Length Measurement
Goods in pieces like gypsum and paper board, timber, metal sheets


Spool Length
Cable, wire, fiber, woven and non-woven fabrics, corrugated paper, foils

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Speed Measurement and Speed Control
Speed measurement in cold and hot rolling mills


Differential Speed Measurement
Elongation/speed ratio measurement on strip skin pass and temper mills, tension and leveling lines, mass flow


Speed Synchronization

Slippage detection, synchronization of casters, lamination processes


Encoder Calibration
Calibration of encoder equipment on process lines


Ink-jet Marker Control
Length marking on continuous goods in testing facilities

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