Saw wheels are divided into spoke-type saw wheels and spoke-type saw wheels; vertical saws generally have a lower saw wheel as the driving wheel and an upper saw wheel as the driven wheel. The weight of the upper saw wheel should be 2.5 to 5 times lighter than that of the lower saw.
The cutting speed of the band saw blade is usually 30 to 60 m/s.
The upper saw wheel lifting device is used to load and unload and adjust the tightness of the band saw blade; the upper saw wheel pitch device is used to prevent the band saw blade from falling off the saw wheel during sawing.
The band saw blade tensioning device can give the upper saw wheel elasticity to ensure the stability of the tension of the band saw blade during operation; the old type uses a spring or lever weight mechanism, and the new type uses a pneumatic or hydraulic tensioning device.
The guide device is commonly known as the saw card, which is used to prevent the band saw blade from twisting or swinging during sawing; the lower saw card is fixed at the lower end of the bed, and the upper saw card can be adjusted up and down along the vertical slide rail;
The saw card structure has roller type and slider type, and the slider type is made of hardwood or wear-resistant plastic.
Band saw machines are widely used in the wood industry and have many models.
According to the process use, they can be divided into: large band saws, re-slicing band saws and joinery band saws;
According to the placement of the saw wheel: vertical, horizontal and inclined, and the vertical is divided into: right and left;
According to the installation method of the band saw machine: fixed and mobile;
According to the number of combined units: ordinary band saws and multi-band saws, etc.
