Installation Guide

5
Saw blades should be equipped with carbide-tipped teeth of
the triple-chip style. This tooth style is also called square and
advance and is illustrated in Figure 1. Triple-chip-style teeth are
designed so that alternate teeth start and finish the cut. The
slight chamfering of the square tooth corners minimizes chipping.
Carbide-tipped blades give cuts of superior quality, cut faster,
and require fewer blade changes because of dulling. However,
such blades must be returned to the factory for resharpening.
For best results with Plexiglas
®
MC acrylic sheet, circular saw
blades should be the largest diameter possible and contain
60 carbide-tipped teeth with a triple-chip-tooth design. Teeth
should be shaped with a 5° to 10° positive rake angle and have
sharp cutting edges with adequate clearance.
To obtain the optimum cut from carbide-tipped blades, the
saw and stabilizer discs must fit the arbor closely with a clearance
of about 0.001 inch, and must run true. Loose bearings, bent
arbors, or misaligned or burred stabilizers will vibrate and cause
cuts of poor quality and shorten blade life. For maximum service
life, carbide-tipped blades used for cutting Plexiglas
®
acrylic sheet
should not be used to cut any dissimilar materials.
To minimize blade wobble, which results in the generation of
heat and possible melting of the plastic, the use of a single- or
double-mounted, precision-ground, hardened-steel stiffener with
a diameter 4 inches less than the saw blade and a blade with
additional radial/side tooth clearance is highly recommended.
Table1A lists specifics on the recommended carbide-tipped
circular saw blades.
Where the quantity of the Plexiglas
®
acrylic sheet to be cut
does not warrant the purchase of carbide- tipped blades,
Carbide-Tipped Circular Saw Blade Recommendations
Material
Thickness
.030”-.080”
Solid
.100”-.177”
Solid
.236”-.944”
Solid
1.5”-2”
Solid
.236”-.944”
Stacked
1.5”-2.0”
Stacked
Plexiglas
®
G
Type Saw
Table
(Hand Feed)
T
able
(Hand Feed)
Table
(Hand Feed)
Table
(Hand Feed)
Radial or Panel
(Power Feed)
Radial or Panel
(Power Feed)
Diameter
(Inches)
8
10
12
8
10
12
14
8
10
12
14
12
14
16
8
10
12
14
14
16
18
No. of
Teeth
80
80
80
80
80
80
80
60
60
60
60
60
60
60
60
60
60
60
60
60
60
Rake
Angle
0
°
0 °
0 °
5 ° -10 °
5 ° -10 °
5 ° -10 °
5 ° -10 °
5 ° -10 °
5 ° -10 °
5 ° -10 °
5 ° -10 °
5 ° -10 °
5 ° -10 °
5 ° -10 °
5 ° -10 °
5 ° -10 °
5 ° -10 °
5 ° -10 °
5 ° -10 °
5 ° -10 °
5 ° -10 °
Plate Thickness
(Inches)
.095
.095
.095
.072
.072
.090
.105
.090
.090
.090
.105
.105
.125
.135
.090
.090
.105
.105
.125
.135
.135
Kerf Width
(Inches)
.075
.080
.085
.100
.100
.125
.145
.125
.125
.125
.145
.145
.170
.180
.125
.125
.145
.145
.170
.180
.180
Additional
Information
.052” rim thickness, 2” rim
.054” rim thickness
, 2” rim
.060” rim thickness, 2” rim
General: All
teeth to be tipped
with Premium
No. 2 carbide,
ground to a
triple-chip style
with additional
side clearance
and slight
corner level on
square tooth.
TABLE 1A
Square and Advanced or Triple-Chip-Tooth Style
FIGURE 1