Victor Taichung Vturn-NP20
Image: machine-tools.victortaichung.com, Victor Taichung
Key Specifications
Max Spindle
Max Turn Length
standard turning diameter
max turning diameter
swing over carriage
spindle nose
How much does the Victor Taichung Vturn-NP20 cost?
Price estimate
We do not have a price for the Victor Taichung Vturn-NP20 that we can stand behind, so we show no number. Configuration, options and installation move the final price a long way: a quote is the reliable figure.
Overview
With an 8 in chuck, Ø52 mm (Ø2.04 in) of bar capacity and a 4,200 rpm spindle, the Victor Taichung Vturn-NP20 is the middle model of the NP series of linear-guide lathes. Maximum turning length is 520 mm (20.47 in), almost twice that of the Vturn-NP16, and the machine is still narrow: Victor Taichung gives its width as only 1930 mm.
The figures shift with the configuration. As a 2 Axis lathe it turns up to Ø320 mm (Ø12.59 in), with a standard turning diameter of Ø206 mm (Ø8.11 in). In the C Axis column the maximum drops to Ø260 mm (Ø10.23 in) while the standard diameter rises to Ø234 mm (Ø9.21 in). Weight goes from 4,000 kg (8,818.47 lb) to 4,370 kg (9,634.18 lb). A buyer who needs the full Ø320 mm should check which column the quoted machine belongs to.
Unlike its smaller sibling, this model has a tailstock row in the table, an M.T. #4 quill. Shafts up to the 520 mm (20.47 in) length can therefore run between centres. The turret holds 12 tools on □25 mm shanks.
Rapid feed is 30 m/min and chips are discharged at the rear, with a right-side conveyor as an option. Other options change the spindle itself: a small bore of Ø42 mm at 6000 rpm, or a large bore of Ø66 mm at 4000 rpm.
Full Specifications
| Parameter | Value |
|---|---|
| Standard Turning Diameter | 2 Axis: Ø206 mm (Ø8.11 in); C Axis: Ø234 mm (Ø9.21 in) |
| Max Turning Diameter | 2 Axis: Ø320 mm (Ø12.59 in); C Axis: Ø260 mm (Ø10.23 in) |
| Max Turning Length | 520 mm (20.47 in) |
| Swing Over Carriage | Ø365 mm (Ø14.37 in) |
| Max Spindle Speed | 4,200 rpm |
| Spindle Nose | A2-6 (8") |
| Bar Capacity | Ø52 mm (Ø2.04 in) |
| Turret Tools | 12 |
| Tool Shank Size | □25 mm |
| Tailstock Quill Taper | M.T. #4 |
| Machine Weight | 2 Axis: 4,000 kg (8,818.47 lb); C Axis: 4,370 kg (9,634.18 lb) |
Specifications sourced from machine-tools.victortaichung.com — verified 2026-10-05
Strengths & Limitations
Strengths
- 520 mm (20.47 in) turning length in a machine only 1930 mm wide
- M.T. #4 tailstock quill listed in the table for shaft work
- 12 tools on □25 mm shanks
- Optional spindle bores of Ø42 mm at 6000 rpm or Ø66 mm at 4000 rpm to suit the bar
- Rapid feed of 30 m/min in both configurations
Limitations
- The C Axis column reduces maximum turning diameter to Ø260 mm (Ø10.23 in)
- Standard bar capacity is Ø52 mm (Ø2.04 in); the larger bore lowers spindle speed
- 4,200 rpm is slow for small-diameter work next to the 6,000 rpm of the Vturn-NP16
Best For
Frequently Asked Questions
01
Ø320 mm (Ø12.59 in) for the 2 Axis machine and Ø260 mm (Ø10.23 in) for the C Axis machine. The standard turning diameters are Ø206 mm (Ø8.11 in) and Ø234 mm (Ø9.21 in) in the same order.
02
The Vturn-NP20 has an A2-6 spindle at 4,200 rpm with Ø52 mm (Ø2.04 in) bar capacity and 520 mm (20.47 in) of turning length. The Vturn-NP16 has an A2-5 spindle at 6,000 rpm with Ø42 mm (Ø1.65 in) bar capacity and 270 mm (10.62 in) of turning length.
03
The NP series option list names a small spindle bore of Ø42 mm at 6000 rpm and a large spindle bore of Ø66 mm at 4000 rpm. The table figure for this model is Ø52 mm (Ø2.04 in) at 4,200 rpm.
04
The standard accessory list for the NP series names a Fanuc 0i-TF Plus control with a 10.4 in screen and Manual Guide i conversational programming. No alternative control is listed for the series.
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