In addition to vertical sawing machine function, the saw frame can be rotated 0 ~ 45 ° angle, to achieve beveled material. The saw frame with tilt design, ease the cutting fore change, for H-beam, channel, beam and special hacksaw cut. Angle of rotation with hydraulic drive, and through control valve controlled to achieve angular speed buffer, more accurately control the angle accuracy. When changing angle, fixed table using one key hydraulic lock, release. Hydraulic tension band saw blades and adjust the tension. Machine uses mechanical automatic sweep crumbs device, effectively clean up residual sawdust saw blade.