• Worldwide-accredited stress grading solution that is compliant to most grading standards worldwide
  • Determines MOE of lumber accurately and reliably
  • Enables automatic sorting in certified strength classes
  • Grades green or dry lumber non-destructively and independently of interfering ambient conditions
  • Measurement accuracy of over 99%

The expert in strength grading

The laser interferometer that measures the resonance frequency
A hammer hits lumber passing the Viscan while the laser interferometer measures the oscillation directly on the board. Using the measured frequency and board length, Viscan calculates the dynamic modulus of elasticity (MOE). Viscan automatically sorts lumber into strength classes according to most strength grading certifications worldwide.

Viscan in three editions
The accuracy of Viscan can be further enhanced in combination with density. Information about a board’s density further improves the predicted strength determination. Such an extension can be achieved through a mechanical scale, Viscan Compact, or with the X-ray module Viscan Plus. Viscan Strength Grader can be further combined with the Goldeneye Multi-Sensor Quality Scanner to increase the correlation to MOR and MOE.

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«Viscan Strength Grading reliably determines the strength of lumber, even at high production pace in transverse transport. Its unique technology is accredited worldwide as the best non-destructive strength grading solution.» 

Dott. Ing. Federico Giudiceandrea, Microtec Founder and President

Viscan Series

Viscan
  • Resonance frequency (laser interferometer)
  • Conveyor speed 240 lugs/min *
  • Board cross section up to 120 × 300 mm (5 × 12 in)

* According to EN 14081 the conveyor speed is limited to 180 lugs/min


Viscan Compact
  • Resonance frequency (laser interferometer) 
  • Weight (mechanical scale) 
  • Conveyor speed up to 35 lugs/min
  • Board cross-section up to 120 × 300 mm (5 × 12 in)

Viscan Plus
  • Resonance frequency (laser interferometer) 
  • Weight (mechanical scale) 
  • Density (X-ray) 
  • Board cross-section up to 120 × 300 mm (5 × 12 in)
  • Conveyor speed 240 lugs/min *

* According to EN 14081 the conveyor speed is limited to 180 lugs/min


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