​ZPK 1200/1900 Shortening circular saw

ZPK is a single-purpose machine designed for cross-cutting of coniferous and deciduous logs in handling lines. The ZPK saw is designed for lines that process logs with a maximum diameter of 700 - 800 mm.

The equipment is designed as a robust machine made of steel profiles and plates placed on a separate base on the left or right side of the conveying device. The saw blade is clamped on a spindle mounted in ball bearings, interchangeably fixed on a swing arm. A saw blade of the required design and power is mounted on the spindle shaft, driven by a 90 kW motor, with torque transmission by means of a multiple V-belt. The swinging motion to and from the cut is provided by an electric gearbox and a crank mechanism.

The saw blade is inserted in a steel housing in the initial base position, from which only the active part of the blade exits during cutting. Two pairs of centering jaws, mounted on the log conveyor frames, in front of and behind the saw blade, operated by straight hydraulic motors, are used to clamp the logs. The saw blade is extended by means of a crank mechanism driven by an electric gearbox. Everything is controlled by a PLC automatic system allowing maximum use of the machine to achieve the shortest possible cutting cycles depending on the diameter and type of log. All hydraulic components and elements for clamping the logs during cutting are connected to the central hydraulic system.

The saw blade is replaced in the initial base position after opening the top and front cover. Work is carried out with the main switch switched off.

The control and operation of the saw is located in the control room for the entire line, usually by computer control, which ensures the main principle that the saw cannot be set in motion while the saw is moving.

The resulting raw materials are precision cuts according to customer requirements, which leave the conveyor route for further processing, with trimmings and sawdust falling through the gap between the conveyors onto the top conveyor, by which they are conveyed or sorted outside the sawmill area.

The machine is approved by the State Testing Institute and fully complies with current EU regulations.