Non-Contact Part Length Measurement up to approx. 15 m

… with material movement, permanently high precision – in transmitted light

The final measurement of very large parts is complex, staff-intensive, but still prone to error. If the maximum measurement length of a continuous SLM longitudinal light grid is not sufficient for the part length measurement of 5 m, but there are not more than 4.5 m between the shortest and longest material to be measured, a permanently installed two-part length-section light scanner can be used. This may also be necessary if the space for the use of continuous length-section light scanner is insufficient. If there are more than 4.5 m between the shortest and longest material to be measured either several SLM/2 gauges can be used, or one of the two light curtain subsystems can also be shifted according to the expected length. In such cases, ELOVIS offers the unique two-parted SLM light scanner technology for the 1/10 mm accurate final measurement of discrete parts. For even longer lengths, the use of the μSPEED laser encoder is ideal. The non-contact final measurement of discrete part lengths takes place with the SLM as with the μSPEED during the part movement in the longitudinal direction. The measurement serves the production optimization as well as the good/bad sorting and documentation of the delivery condition of parts. SLM and μSPEED systems are used to measure the length of profiles, tubes, plates, beams, bolts, struts, rails, hubs made of a wide variety of materials.

Typical plate-like parts:

  • Plastic sheets and foil formats
  • Metal (sheets, blanks, sheets, …)
  • Construction and insulation materials (plasterboard and fiberboard, …)
  • wood (firewood, KVH, beams, …)
  • Particle boards (MDF boards, HDF boards, OSB boards)
  • Furniture panels (MFB melamine coated panels, printed panels, lacquered furniture panels, …)
  • Packaging material (boxes, packages, pallets, …)
  • Rubber plates
  • Carpet

Typical machines with measurement problems:

  • Sheeter
  • Cross divider
  • cutting machine
  • saw line, flying saw
  • Throughfeed
  • Parting line
  • trimming line

Application Examples

Length Measurement of window profiles

Window profiles with lengths between 2.5 m and 7 m should be cut as precisely as possible and checked directly after ...

Length Measurement of cable duct

Cable ducts, wiring channels and cable guides should have the correct length after extrusion and cutting. Cable ducts...

Length Measurement of large plates

Plates with lengths of 2 m to 6.5 m made of metal, sheet metal, wood, composite material or MDF, HDF, OSB should be a...

Matching Products and Services

Length-Section Light Scanner
Discrete Part Length Measurement System

  • Non-contact length measurement of discrete parts in the production process or in a cycle
  • Highly accurate measurement of discrete parts, good/bad sorting and documentation
  • LED-based length-section light scanner measurement technology, maintenance-free, optical, permanently calibrated
  • Optical micrometer for the length measurement of profiles, tubes, plates

ELOVIS Services

ELOVIS offers the following services in this area:

  • Advice on general cargo length measurement
  • measurement services
  • System Rental
  • OEM sensor developments in the field of piece length measurement

Always available for you:
Bernd Engelsdorf


Vincenz-Prießnitz-Straße 1
76131 Karlsruhe, Germany

T +49 721 933823-0
F +49 721 933823-23

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