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How to Calculate SFPM and TPM for Wood Band Saw Blades

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With wood band saw blades, the right speed is key to optimal results. Band saw blade speed is typically defined as feet per minute, commonly measured as SFPM.

SFPM stands for Surface Feet Per Minute (sometimes just SFM), a measure of the blade's linear speed. 

Importance in Cutting:

  • SFPM helps determine the optimal cutting speed for specific materials. Different materials (e.g., wood, metal) require different SPFM to achieve clean cuts without damaging the blade.

Calculate Band Saw Blade Surface Feet per Minute (SFPM)

SFPM = WHEEL RPM X WHEEL DIAMETER (in feet) X 3.14​ (a.k.a. Pi)

In addition to SFPM, you can also calculate teeth per minute (TPM). 

SFPM Relationship to TPM:

  • SFPM impacts TPM directly since higher blade speed increases the number of teeth passing through the material.

Calculate Band Saw Blade Teeth per Minute (TPM)

TPM=SPFM×TPI (Teeth Per Inch)\text{TPM} = \text{SPFM} \times \text{TPI (Teeth Per Inch)}

    TPM represents how many saw "teeth" hit the material in one minute. Calculating TPM allows the operator to determine the right blade pitch and feed rate to ensure the blade is not being overloaded or underutilized, which can lead to blade damage or suboptimal cutting performance.

    KASCO's wood band saw blades have precision ground teeth for straight and accurate cuts, made from only the highest quality materials to improve performance, increase blade life, and decrease safety hazards for employees.

    Whether you're cutting hardwood, softwood, frozen wood, or exotic lumber, our blades are built to withstand the rigors of heavy-duty operations in sawmills.

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