Vertical Quadruple Sawmill CZP-4/IL is an industrial series of machine CZP-4/A WZM that may be offered as completion of professional semi-automatic line for round wood processing. Innovative addition in a round wood rotation system, built in the main chain conveyor of the device, which substantially facilitates optimization of first cut. What is more sawmill’s chain conveyor may be, optionally, extended what allows to process logs 5000 mm long. Stable guidance of log is ensured by 4 pneumatic down-holders.