TaskJunction
โš™ Saw Calculator
Circular Cutting Machine
Material
Calculators
โšก RPM / Speed
โžก Feed Rate
โฑ Cutting Time
๐Ÿ”‹ Power & Torque
๐Ÿชš Blade Selection
๐Ÿ“ฆ Material Removal
Analysis
๐Ÿ“Š Full Summary
๐Ÿ“– Reference Chart
Made by
Vaibhav Dhokpande

RPM / Cutting Speed

๐Ÿชต Wood ISO 3685
โšก
2865
RPM
Blade Speed
๐Ÿ”ต
45.0
m/min
Cutting Speed
โญ•
0.50
m
Circumference
๐Ÿ“
160
mm
Blade Dia
โšกRPM Calculator
Calculate blade RPM from cutting speed and blade diameter
RPM from Speed
Speed from RPM
m/min
mm
Blade RPM (n)2865 RPM
Cutting Speed (Vc)45.0 m/min
Peripheral Speed0.750 m/s
Blade Circumference502.7 mm
Recommended Vc Range30โ€“60 m/min
โœ… RPM is within the recommended range for this material.
MinOperating RPMMax
Formula: n = (Vc ร— 1000) / (ฯ€ ร— D) ย |ย  Vc in m/min, D in mm โ†’ n in RPM
โžกFeed Rate Calculator
Table feed / workpiece feed per minute and per tooth
RPM
teeth
mm
mm
mm
mm
Table Feed Rate (Vf)3438 mm/min
Feed per Rev (fn)1.20 mm/rev
Feed per Tooth (fz)0.050 mm
Feed Rate m/min3.44 m/min
Chip Thickness0.043 mm
Formula: Vf = fz ร— z ร— n ย |ย  Chip thickness: hm = fz ร— โˆš(ae/D)
โฑCutting Time Calculator
Estimate cycle time for a single cut or batch
mm
mm/min
mm
cuts
sec
mm/min
Single Cut Time-
Return Time-
Cycle Time (cut + return + setup)-
Total Batch Time (ร—10 cuts)-
Cuts per Hour-
Effective Feed (with return)-
Formula: tc = (L + approach) / Vf ย |ย  Total = n ร— (tc + t_return + t_setup)
๐Ÿ”‹Power & Torque Calculator
Motor power requirement and blade torque for the cutting operation
N
m/min
mm
N/mmยฒ
mmยฒ
0โ€“1
Net Cutting Power (Pc)-
Required Motor Power-
Blade Torque (M)-
Power in HP-
Specific Power-
โœ… Cutting parameters within normal range.
Pc = (kc ร— ap ร— fz ร— Vc) / 60000 ย |ย  Motor Power = Pc / ฮท ย |ย  Torque M = (Pc ร— 60) / (2ฯ€ ร— n)
๐ŸชšBlade Selection Guide
Recommended blade specifications based on material and cut type
mm
mm
Recommended Teeth Count-
Tooth Type-
Pitch (gullet spacing)-
Kerf Width-
Recommended RPM-
Blade Material-
Cutting Fluid-
๐Ÿ“ฆMaterial Removal Rate (MRR)
Volume of material removed per unit time
mm
mm
mm/min
g/cmยณ
mm
passes
MRR (Volume/min)-
MRR (cmยณ/min)-
Mass Removal Rate-
Total Volume Removed-
Total Mass Removed-
MRR = ae ร— ap ร— Vf ย (mmยณ/min) ย |ย  Mass = MRR ร— ฯ
๐Ÿ“ŠFull Cutting Summary
Enter all parameters and get complete analysis
mm
m/min
z
mm
mm
mm
mm
cuts
ฮท
๐Ÿ”ต Blade RPM-
โžก Feed Rate (Vf)-
โฑ Single Cut Time-
โฑ Batch Time (10 cuts)-
๐Ÿ“ฆ MRR-
๐Ÿ”‹ Required Motor Power-
๐Ÿชš Chip Thickness-
๐Ÿ“–Cutting Speed Reference Chart
Recommended Vc (m/min), feed/tooth, and blade specs by material
Material Vc (m/min) fz (mm) Teeth/100mm Blade Type Fluid

Circular Saw Cutting Force Calculator: Machining Guide

Circular saw cutting force calculation is essential for machining process design, blade selection and motor sizing. Accurately calculating tangential cutting force, feed force, torque and required power for wood, aluminium, steel and composite materials ensures safe and efficient cutting.

๐Ÿ“‹ How to Use This Calculator

  1. Select workpiece material, wood, aluminium, mild steel, stainless steel or composite.
  2. Enter blade diameter (mm), number of teeth, RPM and depth of cut.
  3. Specify feed rate (mm/min) and rake angle.
  4. View tangential force, feed force, cutting torque and required motor power results.

๐Ÿ“ Formula & Working Principle

Tangential Force Fc = kc ร— b ร— hm. Specific cutting force kc depends on material (N/mmยฒ). Feed force Ff โ‰ˆ 0.3 ร— Fc. Torque M = Fc ร— D/2000 (Nยทm). Power P = 2ฯ€NM/60000 (kW).

๐Ÿ’ก Worked Example

Mild steel: kc=2000 N/mmยฒ, Width b=5 mm, Mean chip thickness hm=0.1 mm. Fc=2000ร—5ร—0.1=1000 N. D=250 mm saw, N=2000 RPM. Torque=125 Nยทm. Power=26.2 kW.

โ“ Frequently Asked Questions (FAQ)

Q: How do I select blade RPM?

Peripheral speed = ฯ€ ร— D ร— N / 60000 m/s. Wood: 40โ€“60 m/s. Aluminium: 30โ€“50 m/s. Steel: 1โ€“3 m/s (HSS blade), 30โ€“50 m/s (TCT blade with coolant).

Q: When should I use HSS vs TCT (Tungsten Carbide Tipped) blades?

HSS: soft materials, low production volume, easy resharpening. TCT: hard materials, high production, longer life, better finish quality.

Q: Is coolant/cutting fluid necessary?

For metal cutting, coolant extends tool life 3โ€“5ร—, improves surface finish and reduces thermal distortion. Use flood coolant or mist coolant.

Q: Why does chatter vibration occur?

Chatter is caused by an improper feed rate, worn blade, inadequate workpiece clamping or operation at a resonance frequency. Resolve it by changing feed rate or RPM and improving clamping.

Q: What is kerf width?

Blade thickness + side clearance = kerf width (material removed). This must be accounted for in material planning, especially important in precision cutting.