HNK HVM-4
Key Specifications
Max Spindle
Max Workpiece ⌀
pallet size
max workpiece height
x axis travel
y axis travel
How much does the HNK HVM-4 cost?
Price estimate
We do not have a price for the HNK HVM-4 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
The HNK HVM-4 is a 4-axis vertical milling machine that HNK designs for aerospace engine parts in high-alloy materials such as Inconel and titanium. Its pallet table is 1,000 x 1,000 mm (39.4 x 39.4 in) and indexes without limit, carrying a workpiece up to Ø1,700 mm (66.9 in) and 1,650 mm (65.0 in) tall.
Notice how far the part can overhang the pallet. A ring or casing much wider than the table is clamped on a fixture, rotated to each station by the table axis, and milled from above and from the side as the table moves 1,700 mm (66.9 in) lengthwise and 1,100 mm (43.3 in) across. The spindle travels 1,600 mm (63.0 in) vertically.
HNK states that box-type slideways are used for higher dynamic stiffness and vibration absorption. Together with a 6,000 rpm spindle, that marks a machine for slow, forceful cuts in nickel alloys, where damping matters more than rapid speed. Power and taper are not listed. Control is Fanuc 31i-B.
Full Specifications
| Parameter | Value |
|---|---|
| Pallet Size | 1,000 x 1,000 mm (39.4 x 39.4 in) |
| Max Workpiece Diameter | Ø1,700 mm (66.9 in) |
| Max Workpiece Height | 1,650 mm (65.0 in) |
| Max Spindle Speed | 6,000 rpm |
| X Axis Travel | 1,700 mm (66.9 in) |
| Y Axis Travel | 1,100 mm (43.3 in) |
| Z Axis Travel | 1,600 mm (63.0 in) |
| Table Index | ∞ |
| CNC Control | Fanuc 31i-B |
Specifications sourced from en.hnkkorea.com — verified 2026-10-04
Strengths & Limitations
Strengths
- Box-type slideways, chosen by HNK for stiffness and vibration absorption
- Workpieces up to Ø1,700 mm (66.9 in) and 1,650 mm (65.0 in) tall
- Endless table index on a 1,000 x 1,000 mm (39.4 x 39.4 in) pallet
- Spindle vertical travel of 1,600 mm (63.0 in)
Limitations
- Spindle speed tops out at 6,000 rpm
- Cross travel of 1,100 mm (43.3 in) is short beside the Ø1,700 mm part size
- No spindle power, taper or pallet load published
Best For
Frequently Asked Questions
01
HNK says it is specially designed for machining aerospace engine parts in highly alloyed steels and alloys such as Inconel and titanium. The table lists a maximum workpiece of Ø1,700 mm (66.9 in) by 1,650 mm (65.0 in) high.
02
Table longitudinal travel of 1,700 mm (66.9 in), table cross travel of 1,100 mm (43.3 in), spindle vertical travel of 1,600 mm (63.0 in), and a table index given as endless. The pallet table measures 1,000 x 1,000 mm (39.4 x 39.4 in).
03
According to HNK, box way type slideways are adapted to offer higher dynamic stiffness and vibrational absorption. Those are the properties that count in nickel and titanium alloys, which are cut at low surface speed with high force. The spindle is listed at 6,000 rpm.
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