Southbend SB1019 owner manual Blade Pitch TPI, To select the correct blade pitch

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For Machines Mfg. Since 8/09

O P E R A T I O N

Model SB1019

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 operation, contact the blade manufacturer.

To select the correct blade pitch:

1.Measure the material thickness. This measurement is the distance from where each tooth enters the workpiece to where it exits the workpiece.

2.Refer to the "Material Width/Diameter" row of the blade selection chart in Figure 18, and read across to find the workpiece thickness you need to cut.

3.Refer to the "Material Shapes" row and find the shape of the 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 chart offers guidelines for various metals, given in feet per minute (FPM). Choose the speed closest to the number shown in the chart.

Material Width/Diameter

 

 

 

 

 

Teeth Per Inch (TPI) for Bandsaw Blades

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Material Shapes

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

TOOTH SELECTION

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

mm

50

 

75

 

100

 

150

 

200

 

250

 

300

 

350

 

400

 

450

 

 

 

5/8

 

4/6

 

 

 

3/4

 

 

 

 

 

 

2/3

 

 

 

 

 

4/6

 

3/4

 

 

 

2/3

 

 

 

 

1.4/2.5

 

 

 

1.5/.8

 

 

 

 

3/4

 

 

 

2/3

 

 

 

1.4/2.5

 

 

 

 

1.5/.8

 

 

inch

2

3

4

5

6

7

8

9

10

11

12

13

14

15

16

17

18

19

Figure 18. General guidelines for blade selection and speed chart.

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Contents METAL-CUTTING Bandsaw Customer Service UpdatesScope of Manual Manual FeedbackTable of Contents About This Machine FeaturesCapabilities ON/OFF IdentificationMachine Specifications Machine SpecificationsOther Understanding Risks of Machinery Basic Machine SafetyF E T Y Additional Metal Bandsaw Safety Things Youll Need Power Supply RequirementsAvailability Full-Load Current RatingCircuit Information For 110V Connection PrewiredCircuit Requirements for Grounding RequirementsInventory UnpackingExtension Cords Before cleaning, gather the following Cleaning & ProtectingBasic steps for removing rust preventative Location Leveling & Mounting Lifting & MovingLeveling Machine Mounts Bolting to Concrete FloorsTo set up the machine Machine SetupInstalling stop rod Power ConnectionTest Run Inspections AdjustmentsTo test run your machine OperationPERATIONOverview Description of Controls & Components Blade Terminology Blade SelectionBlade Length Blade WidthTooth Type Tooth SetTo select the correct blade pitch Blade Pitch TPITo change the blade Blade ChangesBlade Breakage Blade TensionTo tension the blade on the bandsaw Most common causes of avoidable blade breakage areBlade Speed Blade Care & Break-InBlade Care Blade Break-InChip Inspection Chart Blade Speed ChartDownfeed Pressure Downfeed RateCuts to the Right Angle CutsCuts to the Left Blade Guide To adjust the blade guideWorkpiece Holding Vise Quick ReleaseCutting Fluid System Cutting FluidTo use the cutting fluid system Coolant control valve Operation TipsLubrication CleaningGearbox Machine StorageTroubleshooti NG Blade Selection section beginning on Troubleshooti NG Blade Tracking To adjust the blade trackingSquaring the Blade Blade Guide BearingsTo adjust the angle stops Adjusting Angle StopsWiring Diagram Color KEY ElectricalL CTRICALSafety InstructionsTo convert the Model SB1019 to 220V Conversion110 VAC Wiring DiagramLimit switch and coolant pump locations Wiring Component LocationsCabinet & Base Description Cabinet & Base Parts ListMotor & Head Motor & Head Parts List Coolant Nozzle Bracket Blade Guide AssembliesGearbox Gearbox Parts List Machine Labels R R a N T Y Southbendlathe.com