Non-contact, inline monitoring of length & speed
For rolling mills, casting lines, hot and cold applications, coating plants, whether tubes and pipes, long or flat metals, elongation or superior cut-to-length and process control - Contact us today!
Polytec stands as a trusted partner for steel, metal, and aluminum manufacturers, offering exceptional service, including a free 3-year warranty, a 24-hour exchange program, and comprehensive global support.
Non-contact: no slippage, no wear for long-time accuracy
Large depth-of-field masters varying distances
Flexibility with up to 3m large stand-off distance
Laser measures accurately on all materials, also red-hot
Reliable sensor performance in harsh environments
Non-contact length and speed monitoring with laser precision in steel, aluminum and metals processes is the domain of ProSpeed® LSV laser optical sensors made in Germany. Designed to excel in the toughest environments, whether oily, dusty, or dirty, these sensors provide unmatched performance where traditional methods fail. LSV (based on Laser Surface Velocimetry) provide real-time process data for optimized machining, superior process control, and increased efficiency. No slippage, no wear, no damage to the produced material surface. Just accurate, reliable measurement.
Contact us for custom sensor solutions, featuring adjustable stand-off distance and large depth of field, ensuring maximum flexibility: For hot applications, the umcompromising TPH Thermo-Protective Housing offers additional protection. For challenging environments, Polytec has elaborated a wide range of application-specific accessories, like air wipe, beam deflection, mounting and cooling plates - making any LSV sensor your custom measurmeent solution.
Feed speed or length verification, roll gap width or cut-to-length?
Applications
- Continuous casting
![Reliable process control for continuous casting: optical gauges for speed and length measurement]( "Reliable process control for continuous casting: optical gauges for speed and length measurement")
Reliable process control for continuous casting: optical gauges for speed and length measurement - Elongation
![Elongation process in steel rolling mill using optical sensors]( "Elongation process in steel rolling mill using optical sensors")
Elongation process in steel rolling mill using optical sensors - Cutting length control
![Inline cut-to-length control, LSV optical sensors controlling the torch cutter of cast steel beams]( "Inline cut-to-length control, LSV optical sensors controlling the torch cutter of cast steel beams")
Inline cut-to-length control, LSV optical sensors controlling the torch cutter of cast steel beams - Tube & pipe
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- Mass flow control
![In-process measurement of mass-flow with ProSpeed LSV-2100 laser sensors]( "In-process measurement of mass-flow with ProSpeed LSV-2100 laser sensors")
In-process measurement of mass-flow with ProSpeed LSV-2100 laser sensors - Length measurement
![Length measurement with a LSV laser sensor in a continuous caster line]( "Length measurement with a LSV laser sensor in a continuous caster line")
Length measurement with a LSV laser sensor in a continuous caster line - Velocity measurement
![Optical speed measurement in an aluminum rolling mill for roller synchronization]( "Optical speed measurement in an aluminum rolling mill for roller synchronization")
Optical speed measurement in an aluminum rolling mill for roller synchronization - Velocity difference
![Differential speed measurement in rolling mills using non-contact laser sensors]( "Differential speed measurement in rolling mills using non-contact laser sensors")
Differential speed measurement in rolling mills using non-contact laser sensors - Non-destructive testing
![Non-destructive testing/ inspection of stainless steel tubes using non-contact optical sensors]( "NDT testing/ inspection of stainless steel tubes using non-contact optical sensors")
NDT testing/ inspection of stainless steel tubes using non-contact optical sensors
35 years experience, 3 year warranty have got your back!
With over 35 years of experience in the industry and in laser-optical measurement technology, Polytec has always focused on reliability and accuracy in their length and speed gauges, covering the back of thousands of satisfied industrial customers worldwide.
The included 3-year warranty, the 24-hour sensor exchange program and uncompromising support within the experienced PolyXperts network underline Polytec’s commitment. Read more about Polytec length & speed sensors or the complementing PolyXpert services.
Want proof? Let's test in your facility
ProSpeed LSV-2100 Laser Surface Velocimeter
The ProSpeed® LSV-2100 optical sensor determines the direction of motion and standstill conditions with laser precision. It measures reliably even under harsh production conditions with large working distances up to 3 m. Due to the non-contact measurement principle, these laser sensors eliminate common problems of traditional contact-wheel measurement methods such as damage to delicate surfaces, slippage and thermal expansion and work on almost any surface.
ProSpeed LSV-1100 Laser Surface Velocimeter
The ProSpeed® LSV-1100 optical sensor measures in forward direction with laser precision. It measures reliably even under harsh production conditions with working distances up to 1.5 m. Due to the non-contact measurement principle, these laser sensors eliminate common problems of traditional contact-wheel measurement methods such as damage to delicate surfaces, slippage and thermal expansion and work on almost any surface.
Service & support
Free 3-year warranty on new gauges, outstanding service and reliable support: Our PolyXpert services comprise various packages: from on-site support to sensor integration and installation, we help find custom solutions, dedicated training, calibration or repair, plus our fast and uncompromising sensor exchange program. Our ProSpeed® optical length and speed sensors come along with a reliable partnership, know-how and trust! Proof us!