Model setup, cut, idle, and tool-change minutes precisely. Handle machining operations with flexible user inputs. Reduce quoting errors and improve realistic production planning daily.
The form uses a three-column layout on large screens, two columns on tablets, and one column on mobile devices.
The estimator combines pure cutting time with handling, tool changes, idle allowances, setup, and an efficiency factor to produce a more realistic shop-floor schedule.
Turning time per part = ((cut length + approach/overtravel) × passes) ÷ (feed per rev × RPM)
Milling time per part = ((toolpath length + approach/exit) × passes) ÷ feed rate
Drilling time per hole = effective depth ÷ (feed per rev × RPM) + extra peck time
Drilling time per part = drilling time per hole × number of holes
Base cycle time = cutting + handling + idle + tool-change time
Adjusted cycle time = base cycle time ÷ (efficiency ÷ 100)
Batch total time = setup time + (adjusted cycle time × quantity)
For drilling, effective depth equals hole depth plus breakthrough allowance. Extra peck time covers retract travel and dwell after each additional peck.
| Operation | Example inputs | Estimated cycle time | Batch quantity | Estimated batch hours |
|---|---|---|---|---|
| Turning | 120 mm length, 50 mm diameter, 0.25 mm/rev, 2 passes, 180 m/min | 2.77 min/part | 25 | 1.49 hr |
| Milling | 650 mm toolpath, 420 mm/min, 3 passes, 20 mm approach | 5.86 min/part | 15 | 1.80 hr |
| Drilling | 30 mm depth, 6 holes, 10 mm drill, 0.18 mm/rev, peck 12 mm | 3.31 min/part | 40 | 2.54 hr |
It combines cutting time with handling, idle allowance, tool changes, setup, and an efficiency factor. That makes the estimate more realistic than a pure feed-and-speed calculation.
Yes. For turning and drilling, leave the RPM field blank and enter cutting speed plus tool or work diameter. The calculator will estimate spindle speed automatically.
Theoretical time assumes perfect conditions. Efficiency adjusts for real interruptions such as chip clearing, checks, operator delays, and machine response, so batch planning becomes more believable.
Base cycle time is the direct sum of cutting, handling, idle, and tool-change time. Adjusted cycle time divides that total by efficiency to reflect actual production conditions.
The estimator calculates peck count from depth and peck depth. Each extra peck adds retract travel time and dwell time, then multiplies the result by the number of holes.
No. Setup is treated as a one-time batch activity. Per-part items should go into handling, idle, and tool-change fields instead.
Yes. Milling mode is ideal when CAM already provides toolpath length. Enter the toolpath per pass, the feed rate, and the number of passes.
It is useful for first-pass quoting and scheduling. Still, you should add shop overhead, fixture development, inspection requirements, material handling, and risk margins outside this estimator.
Important Note: All the Calculators listed in this site are for educational purpose only and we do not guarentee the accuracy of results. Please do consult with other sources as well.