Band-saw machine and method for sawing a metal tube

A band-saw machine for sawing a metal tube or a hollow section, the band-saw machine comprising:

• a stationary lower saw part (1) having a saw table (2) for securing a metal tube (3) or a hollow section to be sawn, the saw table (2) defining an opening,
• an upper saw part (4), which is movable in relation to the lower saw part (1), and has a revolving saw band (5) equipped with a series of saw teeth (12), the saw band (5) being configured to be housed in the opening of the saw table (2) and below an upper planar surface of the saw table (2) prior to performing a saw cut,
• band guides (9) being arranged on both lateral sides of the saw table (2), the band guides (9) each defining an opening in an upward direction, and the band guides (9) being configured to guide the saw band (5) in a plane of a saw cut, and
• an actuator (16′) that generates a feed motion (13) of the upper saw part (4) to drive the revolving saw band (5) towards the metal tube (3) or the hollow section such that the saw teeth (12) of the saw band (5) penetrate the metal tube (3) or the hollow section, and cause the saw cut,
• the actuator (16′) being configured to drive the upper saw part (4) upward and counter to a force of gravity and a vertical component of a cutting force generated during the saw cut.