Blade Selection - Grizzly G9744Z2 Owner's Manual

Blade Selection

The Model G9744Z2 uses 121
blades.
Selecting the right blade for the job depends
on a variety of factors, such as the type of
material being cut, hardness of the material,
material shape, machine capability, and operator
technique.
The chart below is a basic starting point for choos-
ing blade type based on teeth per inch (TPI) for
variable-tooth-pitch blades and for standard raker
type bi-metal blades/HSS blades. However, for
exact specifications of bandsaw blades, contact
the blade manufacturer.
To select the correct blade TPI:
1. Measure the material thickness. This mea-
surement is the length of cut taken from
where the tooth enters the workpiece, sweeps
through, and exits the workpiece.
Material Width/Diameter
Material Shapes
TOOTH SELECTION
mm
50
4/6
inch 2
CUTTING SPEED RATE RECOMMENDATION
Speed FPM
Material
Carbon
Alloy
(60) (108)
Angle
Steel
Thin
Tube
Aluminum
Alloy (67) (163)
Copper
Alloy
Figure 19. Model G9744Z2 blade selection and speed chart.
-4-
Replaces Manual Page 23
⁄ " x 1" bandsaw
1
2
Teeth Per Inch Variable Pitch Blades
75 100 150
5/8 4/6
3/4
2/3
3/4
2½ 3 3½ 4 5 6
Speed FPM
Material
(M/Min)
196~354
Tool Steel
180~220 High-Speed
Tool Steel
(54) (67)
Cold-Work
180~220
Tool Steel
(54) (67)
220~534
Hot-Work
Tool Steel
229~482
Oil-Hardening
(70) (147)
Tool Steel
2.
Refer to the "Material Width/Diameter" row
of the blade selection chart in Figure 19 and
read across to find your workpiece thickness
you need to cut.
3.
Refer to the "Material Shapes" row and find
the shape and material to be cut.
4.
In the applicable row, read across to the right
and find the box where the row and column
intersect. Listed in the box is the minimum
TPI recommended for the variable tooth pitch
blades.
5. The "Cutting Speed Rate Recommendation"
section of the charts offers guidelines for vari-
ous metals, given in feet per minute (speed
FPM) and meters per minute in parenthesis.
Choose the speed closest to the number
shown in the chart.
200 250 300
3/4
2/3
1.4/2.5
7 8 9 10 11 12
Speed FPM
Material
(M/Min)
203
Alloy
(62)
Steel
75~118
Mold Steel
(25) (36)
Water
95~213
Hardening
(29) (65)
Tool Steel
203 Stainless
(62) Tool Steel
203~213
Cr Stainless
(62) (65)
Steel
350 400
2/3
1.4/2.5
1.5/.8
13 14 15 16 17
Material
(M/Min)
Free Machining
111~321
Stainless Steel
(34) (98)
246 Gray
(75) Cast Iron
Ductile
242
Austenitic
(74)
Cast Iron
85
Malleable
(26)
Cast Iron
85~203
Plastics
(26) (62) & Lumber
Model G9744Z2 (Mfd. Since 10/13)
450
1.5/.8
18 19
Speed FPM
(M/Min)
150~203
(46) (62)
108~225
(33) (75)
65~85
(20) (26)
321
(98)
220
(67)