HNK NT-20/25
Image: en.hnkkorea.com, HNK
Key Specifications
table diameter
max swing cutting diameter
max turning height
table speed turning 2 steps
max table load
table drive motor
How much does the HNK NT-20/25 cost?
Price estimate
We do not have a price for the HNK NT-20/25 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 the HNK NT-20/25 the NT series changes ram. The table is 2,000 mm (78.7 in), the swing and cutting diameter 2,500 mm (98.4 in), and the ram section grows to 240 x 240 mm (9.4 x 9.4 in) from the 200 x 200 mm (7.9 x 7.9 in) of the NT-16/20 below it.
The table motor steps up as well, to A.C 45/55 kW (60.3/73.8 hp), cont/30min. Top table speed is about 200 rpm in two steps. Load capacity is 12,000 kg (26,455 lb), a modest rise over the 10,000 kg (22,046 lb) of the NT-16/20, so this size is chosen for diameter and ram stiffness more than for weight on the table.
Turning height is 1,800 mm (70.9 in). The cross rail moves 250 mm (9.8 in) x 3 steps and the ram head has 1,000 mm (39.4 in) of Z travel, with X running from -200 to +1,450 mm (-7.9 to +57.1 in). Tool shank size remains 40 x 40 mm (1.6 x 1.6 in).
Both Fanuc 31i-B and Siemens 840D appear in the control row. Buyers who need far more weight on a table not much larger should look at the NT-25/30, rated for 20,000 kg (44,092 lb).
Full Specifications
| Parameter | Value |
|---|---|
| Table Diameter | 2,000 mm (78.7 in) |
| Max Swing Cutting Diameter | 2,500 mm (98.4 in) |
| Max Turning Height | 1,800 mm (70.9 in) |
| Table Speed Turning 2 Steps | Max. ~200 rpm |
| Max Table Load | 12,000 kg (26,455 lb) |
| Table Drive Motor | A.C 45/55 kW (60.3/73.8 hp) (cont/30min) |
| X Axis Travel | -200 ~ +1,450 mm (-7.9 ~ +57.1 in) |
| Z Axis Travel | 1,000 mm (39.4 in) |
| Ram Size | 240 x 240 mm (9.4 x 9.4 in) |
| Tool Shank Size | 40 x 40 mm (1.6 x 1.6 in) |
| Cross Rail Vertical Travel | 250 mm (9.8 in) x 3 steps |
| CNC Control | Fanuc 31i-B, Siemens 840D |
Specifications sourced from en.hnkkorea.com — verified 2026-10-04
Strengths & Limitations
Strengths
- First NT size with the 240 x 240 mm (9.4 x 9.4 in) ram
- A.C 45/55 kW (60.3/73.8 hp) table motor
- 2,500 mm (98.4 in) swing with 1,800 mm (70.9 in) of turning height
- 1,000 mm (39.4 in) of Z travel on a rail that moves 250 mm (9.8 in) x 3 steps
Limitations
- 12,000 kg (26,455 lb) table load, against 20,000 kg (44,092 lb) on the NT-25/30
- Table speed limited to about 200 rpm
- Tool shank stays at 40 x 40 mm (1.6 x 1.6 in)
Best For
Frequently Asked Questions
01
The NT-20/25 has a 2,000 mm (78.7 in) table, 2,500 mm (98.4 in) swing, a 240 x 240 mm (9.4 x 9.4 in) ram and an A.C 45/55 kW (60.3/73.8 hp) motor. The NT-16/20 has a 1,600 mm (63.0 in) table, a 200 x 200 mm (7.9 x 7.9 in) ram and A.C 37/45 kW (49.6/60.3 hp).
02
HNK lists a maximum load on the table of 12,000 kg (26,455 lb). Fixtures and jaws count against it. For heavier parts of similar diameter the NT-25/30 carries 20,000 kg (44,092 lb).
03
Up to about 200 rpm, in two steps according to the row label. The figure is star-marked in the maker's table, which means the speed range can be changed to the customer's requirements.
04
The ram head moves from -200 to +1,450 mm (-7.9 to +57.1 in) horizontally and 1,000 mm (39.4 in) vertically. The cross rail adds vertical adjustment of 250 mm (9.8 in) x 3 steps under a maximum turning height of 1,800 mm (70.9 in).
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