Excision Bi-Alfa Profile WS Band Saw Blade 62634304-3505 3505 x 34 x 1.1mm 3/4 TPI

62634304 is the code for this Excision Bi-Alfa Profile WS band saw blade: 34mm wide, 1.1mm thick, 3/4 TPI, with 17 lengths from 3505mm to 6350mm listed.

The maker describes Bi-Alfa Profile as a blade for vibration-susceptible cuts in tubes, beams and profiles, with a reinforced back edge on the tooth that adds strength during interrupted cutting and protects against tooth strippage. Profile WS (Wide Set) is described as specially developed for cutting profiles and beams that are under tension: as the stress is relieved during cutting, a particularly large kerf is needed to stop the blade binding in the cut (manufacturer-stated).

The profile tooth has a reduced cutting angle of 6°, which the maker says adds to its resistance to vibration when cutting beams and tubes (manufacturer-stated). The listing gives the pitch as 3/4 TPI, a combi (variable) pitch: the maker explains that the first figure is the largest distance between tooth tips and the second the smallest distance within one group, and that a combi pitch widens the blade's application area and reduces vibration (manufacturer-stated).

Where this product is used

• Profiles and beams that are under tension (manufacturer-stated)
• Vibration-susceptible cuts in tubes, beams and profiles (manufacturer-stated)

Features

• Wide Set (WS), developed for profiles and beams under tension; the maker says this cut needs a particularly large kerf (manufacturer-stated)
• Reinforced back edge on the tooth for strength during interrupted cutting (manufacturer-stated)
• Profile tooth with a reduced cutting angle of 6° (manufacturer-stated)

Key specifications

Selecting the right option

Measure first. The maker's method for blade length is to set the wheels about the middle of their adjustment range, then add pi times the radius of each wheel to twice the distance between the wheel centres (manufacturer-stated). The option selector lists 17 lengths from 3505mm to 6350mm; the digits after the dash in the part code give the length in mm. The maker says the TPI has to suit the thickness of the material being cut or blade life is dramatically shortened, and suggests aiming for 5 to 7 teeth in the cut (manufacturer-stated). For band speed, its chart for bimetal blades (Product Guide p31) runs from 80 to 90 m/min on construction and machining steel down to 15 to 25 m/min on heat resistant steels (manufacturer-stated).

Related products

Related blades: Bi-Alfa Profile 34 x 1.1mm, 3/4 TPI (62534304), Bi-Alfa Profile WS 41 x 1.3mm, 3/4 TPI (62641304) and Bi-Alfa Profile 34 x 1.1mm, 4/6 TPI (62534406).