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82 1/2" Bandsaw Blade Tpi And Width Selection
SKU
BS82.5

82 1/2" Bandsaw Blade Tpi And Width Selection

SKU
BS82.5

82 1/2" Bandsaw Blade Tpi And Width Selection

 

When choosing your new bandsaw blades, here are some key points to consider;

It is a common misconception that there such thing as a general purpose bandsaw blade but unfortunately this is not the case 

To achieve the best results possible, it is important to match the blade to the workpiece being machined 

Using a high quality blade will transform your machine (We only use UK manufactured Dakin Flathers bands and coils)

The correct bandsaw depends on a few key elements;

1-Width Of Blade

2- Length Of Blade

3- Teeth Per Inch (TPI)

4- Tooth Configuration

 

1- When looking at the width of the blade, the following general rules apply;

The thinner the blade, the tighter the curve/radius you can machine

The wider the blade, the more straight line cut can be achieved

All blades are wider at the tooth edge than at the back, to allow for clearance

 

2- The Length of the blade is determined by the machine model the bands are to fit on.

 

3- The teeth per inch (TPI) is critical to the thickness of the workpiece being machined

The most optimum to give efficient cutting

minimum feed pressure

adequate gullet area for chip removal

stable cutting

material security

is 5 teeth per workpiece thickness.

This will give one tooth entering the workpiece, one exiting and three stable within

the workpiece, please note this is not always possible to achieve, but should be aimed for)

Too many teeth gives less area within the gullet for the chips to free themselves from the timber, resulting in cutting pressures that cause binding, black cut edges and blade breakages

 

A great guide to choosing the correct TPI for your blade is; 

10tpi- up to 20mm of material

8tpi - up to 30mm of material

6tpi - up to 40mm of material

4tpi - up to 60mm of material

3tpi - up to 100mm of material

 

There are some blades available that have a vary-tooth setup, which allows for variants in the timber thickness, please speak to our technical team regarding these.

 The most widely used tooth formations and their uses are as follows;-

 Regular tooth- A conventional tooth used for cross-cutting, contour sawing, sawing thin materials where a fine finish is required

 Skip Tooth – These are more widely spaced teeth which have a 0° rake angle to help prevent clogging when cutting larger sections

 Hook Tooth- These have a 90° positive rake angle, a deeper gullet and larger tooth which helps to feed into material giving a faster cutting rate

 Variable Pitch – These have altering sets of different sized teeth to provide a smooth finish cut in varying sized timber

 

If you are struggling to choose or find the correct blade within the vast amount available

then please do not hesitate to contact our in house, time served machinists to discuss any of the elements in choosing the correct blade for you. 

More Information
Brand Dakin Flathers
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Blade Length Blade Width Teeth Per Inch (TPI) Appleby Woodturnings
0 - 8 ft (0-2438mm) 1/4 Inch 6 tpi 7
0 - 8 ft (0-2438mm) 3/8 Inch 10 tpi 20
0 - 8 ft (0-2438mm) 1/2 Inch 6 tpi 11
0 - 8 ft (0-2438mm) 5/8 Inch 3 tpi 7

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Appleby Woodturnings Limited

Units 3-4 Rinkway Business Park

Rink Drive Swadlincote

Derbyshire, DE11 8JL

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