RF 812G, Инструкция по эксплуатации

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6. MINIMUM ROOM SPACE FOR MACHINE OPERATION
7. MAKE PROPER TOOTH SELECTION
For maximum cutting efficiency and lowest cost per cut, it
is important to select the blade with the right number of
teeth per inch (TPI) for the material being cut. The
material size and shape dictate tooth selection.
You need to consider:
1.The width of the cut. That is, the distance in the cut that
each tooth must travel from the point it
enters the workpiece until it leaves the workpiece, and
2.The shape of the workpiece.
z
Squares, Rectangles, Flats (Symbol :
■
)
Locate the width of cut on the chart. (Inches on the outer
circle and millimeters on the inner circle.) Select the tooth
pitch
TOOTH SELECTION
on the ring marked with the square shape which aligns
with the width of cut.
EXAMPLE: 6" (150mm) square, use a 2/3 Vari-Tooth.
z
Round Sollds (Symbol :
●
)
Locate the diameter of your workpiece on the chart.
Select the tooth pitch on the ring marked with the round
shape which aligns with the size of stock you are cutting.
EXAMPLE: 4" (100mm) round, use a 3/4 Vari-Tooth.
z
Tubing, Pipe, Structurals( Symbol : O H ^ )
Determine the average width of cut by dividing the area
of the workpiece by the distance the saw blade must
travel to finish the cut. Locate the average width of cut on
the chart. Select the tooth Ditch on the ring marked with
the tubing and structural shape which aligns with the
average width you are cutting.
EXAMPLE: 4"(100mm) outside diameter, 3"(75mm)
inside diameter tubing.
4"(100mm) OD=12.5 sq.ln. (79cm
2
)
-3"(75 mm ) ID= 7.0 sq.ln. (44cm
2
)
2120
2240 1500
Area = 5.5 sq.ln. (35cm
2
)
5.5 sq.ln. (35cm
2
) / 4" (100mm)
distance =1.38(35mm) average width
1.38" (35mm), use a 4/6 Vari-Tooth
NOTE: The band speed and cutting rate
recommendations presented on this chart are
approximations and are to be used as a starting point for
most applications. For exact sawing parameters' consult
your saw blade supplier.
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