Excision Bi-Alfa Profile Band Saw Blade 62541304-3855 3855 x 41 x 1.3mm 3/4 TPI

62541304 is the code for this Excision Bi-Alfa Profile band saw blade: 41mm wide, 1.3mm thick, 3/4 TPI, with 33 lengths from 3855mm to 7900mm listed.

The maker describes Bi-Alfa Profile as a blade for vibration-susceptible cuts: vibration when cutting tubes, beams and profiles can damage a conventional blade and reduce blade life and cut area. The reinforced back edge of the tooth adds strength against vibration during interrupted cutting and protects the blade against tooth strippage, and the tooth tip is HSS M42 (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

• Vibration-susceptible cuts (manufacturer-stated)
• Tubes, beams and profiles (manufacturer-stated)
• Round and square tubes as well as beams (manufacturer-stated)

Features

• Reinforced back edge on the tooth for strength during interrupted cutting (manufacturer-stated)
• Protects the blade against tooth strippage (manufacturer-stated)
• Profile tooth with a reduced cutting angle of 6° (manufacturer-stated)
• HSS M42 tooth tip (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 33 lengths from 3855mm to 7900mm; 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 WS 41 x 1.3mm, 3/4 TPI (62641304), Bi-Alfa Profile 34 x 1.1mm, 3/4 TPI (62534304) and Bi-Alfa Profile 41 x 1.3mm, 2/3 TPI (62541203).