With conventional root reducers, logs are thrown in crosswise, reduced, and then ejected, with minimum cycle times of six to eight seconds.
With the WRP-STAR, cycle times can be reduced by approximately 30%. Round timber sections are more gently transported through the system using the rotating star prism, protecting the logs from damage and the machine from hard knocks. Gaps between logs can be significantly reduced, with proven log yard performance increases of around 7%.
Mode of operation:
With this design the round wood section is placed on the cross conveyor of the reducer via a feeder. From here it is transported to the core piece of the reducer - the three-part, infinitely rotatable star-shaped V-block. During the rotary movement, the section is lifted off the cross conveyor and placed in machining position. Simultaneously to this movement, holders and a cutting shaft are moved in. The trunk is turned and reduced via the support chains arranged in a star shape. When approx. 90 % of the reducing process has been completed, the rotary movement is started again. The holders and cutting shaft return to home position. The reduced trunk is ejected and placed on the cross conveyor. At the same time the next round section is fed in.
Baljer & Zembrod has already received two innovation awards for the WRP-STAR.
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