Grizzly G0561 Owner's Manual page 28

Blade Length
Measured by the blade circumference, blade
lengths are usually unique to the brand of bandsaw
and the distance between the wheels.
Model
G0561 ............................................................. 93"
Blade Width
Measured from the back of the blade to the tip of
the blade tooth (the widest point).
Model
G0561 ..............................................................
Tooth Type
The most common tooth types are described as
follows, and illustrated in Figure 32.
Standard (or Raker)
Variable Pitch (VP)
Figure 32. Bandsaw blade tooth types.
Standard or Raker: Equally spaced teeth set
at "0" rake angle. Recommended for all purpose
use.
Variable Pitch (VP): Varying gullet depth and
tooth spacing, "0" rake angle, excellent chip
removing capacity, and smooth cutting.
Material Width/Diameter
Material Shapes
TOOTH SELECTION
mm
50
4/6
inch
2
Figure 33. General guidelines for blade selection and speed chart.
-26-
Blade Length
Blade Width
Teeth Per Inch (TPI) for
75 100 150
5/8 4/6
3/4
2/3
3/4
2½ 3 3½ 4 5 6
Blade Pitch (TPI)
The chart below is a basic starting point for
choosing teeth per inch (TPI) for variable pitch
blades and standard raker set bi-metal blades/
HSS blades. However, for exact specifications of
bandsaw blades that are correct for your opera-
tion, contact the blade manufacturer.
To select correct blade pitch:
1. Measure material thickness. This measure-
ment is distance from where each tooth
enters workpiece to where it exits workpiece.
⁄ "
3
4
2. Refer to "Material Width/Diameter" row of
blade selection chart in Figure 33, and read
across to find workpiece thickness you need
to cut.
3. Refer to "Material Shapes" row and find
shape of material to be cut.
4. In applicable row, read across to right and
find box where row and column intersect.
Listed in the box is minimum TPI recom-
mended for variable tooth pitch blades.
The TPI range is represented by a "/" between
numbers. For example, 3/4 TPI is the same
as 3–4 TPI.
The "Cutting Speed Rate Recommendation"
chart, which is located on the machine just
below the Blade Pitch Chart, offers guidelines
for various metals, given in feet per minute
(FPM). Refer to Blade Speed Chart section
on Page 35 for further details.
Bandsaw Blades
200 250 300
3/4
2/3
1.4/2.5
7 8 9 10 11 12
350 400 450
2/3
1.4/2.5
1.5/.8
13 14 15 16 17
Model G0561 (Mfd. Since 01/18)
1.5/.8
18 19