The Butt-end reducer is designed to reduce the butt-end on the lower end of the trunk. The reducers are produced for short as well as for long logs. Usually the logs enter the butt-end reducer already aligned on the 0-line. When this is not possible, the butt-end reducer is equipped with tilting cone rollers which bring the logs on the 0-line inside the machine. The logs rotate by means of two or more pair of chains in V-shape from under and by one pair of chains from the top. The chains are driven by electric motors. The logs are pressed from the top by hydraulic arm. The cutter head moves against the logs by a hydraulic cylinder and is driven by an electric motor. The length of a cutter head is from 800 to 1200 mm. The driving power is from 4 – 75 kW. The cutters on the head have 4 edges. After the butt-end is cut-off the logs are ejected on the following conveyor by means of hydraulic ejecting arms. The reducers for long logs are equipped with cross chains with lugs to transport the logs from the machine. We can produce butt-end reducers in different designs for small and large sawmills. The reducer is usually followed by a buffer deck 105 or log intake conveyors 106 and 107.
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