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Optimisation increases performance at SGUARIO (Brazil)

 

SGUARIO is a family company located in Sao Paulo area, in Brazil. It processes annually 40.000 m³ of pine Taeda and Elliotis, mainly for mouldings and laminated and edged-glued panels.
Its production tool is based on a logyard where logs are presorted, then cut in batches by a twin band saw, followed by several resaw machines.

thumb_entre_twin_reduit.jpgThis twin band saw is set at a fixed dimension for each batch, and the analysis made by Ciris Engineering showed that the infeed table used, combined with the lack of saw positioning, generated a serious loss of raw material.

This is why Ciris Engineering studied and carried out a modernisation of this head equipment, aiming at optimising the raw material while preserving the sawmill current operating mode, i.e. sawing a fixed cant thickness for each batch.

The solution implemented by Ciris Engineering is composed of three main elements:

  • Modernisation of the infeed table by installing an accurate sharp-chain, a serie of top rollers to maintain the log in position on the chain;
  • Addition of a scanner accurately measuring the log position with respect to the chain ("offset");
  • Modernisation of the twin band saw, by addition of two hydraulic positioners.

The control system measures the log position, chooses the best sawing pattern and adjusts the saws position.

thumb_sortie_twin_reduit.jpg

Results:
After several months of operation, one can note a significant raw material increase.
A modernisation at moderate cost which brings back a high performance level to an old installation.

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