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Band Saw Information (4)

 

Band Saw Strains
Recommended Speeds and Tooth Spacing For Cutting Various Kinds of Timber
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Band Saw Strains  

To find standard amount of strain according to the width and thickness of saw:

 Multiply width of saw in inches by thickness in 1/1000" and the product by ten.

 EXAMPLE:

  1. To find amount of strain for 16" Band Saw-12 gauge.
    16 x 109 = 1744 x 10 = 17,440 lbs. strain.
  2. To find amount of strain for 12" Band Saw-14 gauge.
    12 x 083 = 996 x 10 = 9960 lbs. strain.

 Figuring strain for resaws, use a common multiple of 8 instead of 10.

 EXAMPLE

To find amount of strain for 6" resaw - 19 gauge.
6 x 042 = 252 x 8 = 2016 lbs. strain.

To find amount of strain on strain lever:

Divide the distance from fulcrum to center of weight on strain bar by distance from fulcrum to strain column.

EXAMPLE:

48 / 2 = 24 x 600 = 14,400 lbs.

This gives the amount of strain if mill has counterbalance weight. If mill has no counter balance weight, add weight of top wheels and guides.

 
Recommended Speeds and Tooth Spacing For Cutting Various Kinds of Timber
   

SPEED (Lineal Feet Per Min.)

 

California Redwood
California Soft Pine
Ore. and Wash. Fir and Spruce
Northern and Southern Pine
Hardwood
Frozen Timber

7,000 to 7,500
8,500 to 9,500
8,500 to 9,500
9,000 to 10,000
8,000 to 9,000
6,000 to 7,000

 

TOOTH SPACING

 

California Redwood
California Soft pine
Ore. and Wash. Fir and Spruce
Northern & Southern Pine & Eastern Spruce
Hardwood
4" Rip Saw
Resaws, 4" to 10"

2-1/2" to 3-1/2"
2" to-1/2"
2-1/2" to 3-1/2"
1-3/4" to 2"
1-1 /2" to 2"
1" to 1-1 /4"
1-1 /2" to 2"

 

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