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Parts & Service: 020 8988 7400 / E-mail: [email protected] or [email protected]
CHOOSING BLADE TPI
Selecting the right blade for the job depends on a variety of factors, such as
type, hardness and shape of the material being cut, machine capability and
operator technique.
The chart below is a basic starting point for choosing blade type based on
teeth per inch (TPI) for variable tooth pitch blades and for standard raker type
bi-metal blades/HSS blades. As a general rule, there should be at least 3 teeth
in contact with the workpiece at all times. However, for exact specifications of
bandsaw blades, contact the blade manufacturer.
When cutting structural shapes such
as angle iron or I-beams, workpieces
should be positioned to maintain the
same material width throughout the
cut, as illustrated.
To select the correct blade TPI:
1. Measure the material thickness.
This measurement is the length of
cut taken from where the tooth
enters the workpiece, sweeps
through and exits the workpiece.
2. Refer to the Material Width row of
the blade selection chart below and read across to find the workpiece
thickness you need to cut.
3. In the centre row, find the TPI that corresponds to the workpiece thickness.
TEST RUN
Once the assembly has been completed, test run the machine to ensure it is
properly connected to the power and safety components are functioning
correctly.
If you find an unusual problem during the test run, immediately stop the
machine, disconnect it from the power source and fix the problem before
operating the machine again. The troubleshooting table on page 33-35 of this
manual may help.
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