📓 INTERACTIVE CALCULATOR

Deep Hole Drilling Power & Thrust Calculator

Size a machine before you buy it: estimate spindle power and axial thrust from material, feed, diameter and cutting speed. Add a 30–50% service factor to the result.

CALCULATOR

Power & Thrust Estimate

Material preset (specific cutting force kc)

Drill diameter D (mm)

Feed f (mm/rev)

Cutting speed Vc (m/min)

—

RPM

Spindle speed

—

Net spindle power

—

Cutting torque

—

Estimated thrust

Estimates only — use toolmaker cutting-force charts for machine selection. Recommended sizing: power × 1.3–1.5, thrust × 2–5 for the axis rating.

FORMULAS

How It's Calculated

Spindle speed n (RPM)= Vc × 1000 / (π × D)

Material removal Q (cm³/min)= π/4 × D² × n × f / 1000

Net power P (kW)= kc × Q / 60,000

Torque T (Nm)= P × 9550 / n

Thrust F (kN, rough)≈ kc × f × D / 2000

⚠️ Real thrust varies widely with drill geometry and guide pads — the value shown is a sizing estimate, not a spec. Demand the toolmaker’s force chart before finalizing an axis rating. See the Machine Selection guide.