A cross-cutting circular saw device comprising: a frame (1); a guide (10) carried by the frame (1) and adapted to span an object (5) to be cross-cut by sawing; a carriage (3) mounted for reciprocal movement along the guide (10); at least one circular saw blade (4A, 4B) carried by the carriage (3); a motor (11) for moving the carriage (3) and rotating said at least one saw blade (4A, 4B), said motor (11) being fixed to the frame (1); a first transmission (2) arranged between the motor (11) and the carriage (3) for transforming an output of the motor to a reciprocating movement of the carriage (3) along the guide (10); and a second transmission (8, 9) arranged between the carriage (3) and the at least one saw blade (4A, 4B) for transforming the reciprocating movement of the carriage (3) to a rotation of said at least one saw blade (4A, 4B).

A cross-cutting circular saw device comprising: a frame (1); a guide (10) carried by the frame (1) and adapted to span an object (5) to be cross-cut by sawing; a carriage (3) mounted for reciprocal movement along the guide (10); at least one circular saw blade (4A, 4B) carried by the carriage (3); a motor (11) for moving the carriage (3) and rotating said at least one saw blade (4A, 4B), said motor (11) being fixed to the frame (1); a first transmission (2) arranged between the motor (11) and the carriage (3) for transforming an output of the motor to a reciprocating movement of the carriage (3) along the guide (10); and a second transmission (8, 9) arranged between the carriage (3) and the at least one saw blade (4A, 4B) for transforming the reciprocating movement of the carriage (3) to a rotation of said at least one saw blade (4A, 4B).