SNK CMV

$800,000 - $2,000,000 Updated 2026-03-14

Key Specifications

X Travel

2,000 - 4,000 mm (78.7 - 157.5 in), configurable

Y Travel

1,500 - 2,500 mm (59.1 - 98.4 in), configurable

Z Travel

800 - 1,200 mm (31.5 - 47.2 in), configurable

Spindle Taper

HSK-A63

Table Size

2,000 x 1,500 mm (78.7 x 59.1 in) minimum

Rapid Traverse

24 m/min (945 IPM)

Overview

The SNK CMV is a column-moving 5-axis vertical machining center designed for medium to large workpieces that require full 5-axis simultaneous capability. SNK positions the CMV for shops machining aerospace components, die and mold work, and general industrial parts in the size range between standard VMCs and the company's massive gantry machines. The column-moving design means the workpiece remains stationary on the fixed table while the column traverses in X and Z, providing excellent dynamic stability on heavy parts.

The 5-axis head provides continuous A/C axis rotation for full simultaneous 5-axis machining of complex contoured surfaces. X-axis travels typically range from 2,000 to 4,000 mm depending on configuration, with Y-axis travel of 1,500 to 2,500 mm and Z-axis of 800 to 1,200 mm. This envelope handles wing ribs, door frames, structural fittings, and medium-sized mold cavities that are too large for standard 5-axis VMCs but do not require the full-gantry treatment of the HGM series.

The spindle options reflect the CMV's versatility across materials. A 12,000 RPM / 30 kW spindle serves as the standard for steel and titanium work, while 20,000 and 30,000 RPM high-speed options are available for high-speed aluminum machining in aerospace applications. The HSK-A63 spindle interface balances rigidity with the tool variety needed for complex multi-operation parts. The 60-tool standard ATC (expandable to 120) keeps tool changes fast and supports unattended runs on parts requiring many different cutters.

SNK's column-moving architecture gives the CMV a structural advantage over C-frame VMCs on heavy cuts. Because the table does not move with the workpiece, there is no degradation of positioning accuracy due to workpiece mass. This matters when machining heavy steel or titanium forgings where workpiece weight can approach the table's rated capacity. The fixed table also simplifies fixturing and allows permanent fixtures for production work without concern about dynamic load effects.

Full Specifications

Parameter	Value
X-Axis Travel	2,000 - 4,000 mm (78.7 - 157.5 in), configurable
Y-Axis Travel	1,500 - 2,500 mm (59.1 - 98.4 in), configurable
Z-Axis Travel	800 - 1,200 mm (31.5 - 47.2 in), configurable
A Axis	+/-100 degrees (continuous)
C Axis	360 degrees (continuous)
Spindle Speed	12,000 RPM standard (20,000 / 30,000 RPM optional)
Spindle Motor Power	30 kW (40 HP) standard
Spindle Taper	HSK-A63
Rapid Traverse Rate	24 m/min (945 IPM)
Table Size	2,000 x 1,500 mm (78.7 x 59.1 in) minimum
Max Table Load	10,000 kg (22,046 lb)
Positioning Accuracy	+/-0.008 mm (+/-0.0003 in)
CNC Control	Fanuc 31i-B5 or Siemens 840D sl
Tool Magazine	60 tools standard (120 optional)
Machine Weight	25,000 - 40,000 kg depending on configuration
Machine Type	Machining Center
Num Of Axes	5
Operation Type	CNC
Cnc Brand	Fanuc 31i-A5
Table Size L X W	19.600(L) x 19.600(W)
Max Workpiece Weight	1,760
Direction	Combination
Taper	# 40
Top Rpm	16,000
Hp	30.00
Tool Carrier	ATC
Num Tools	30
Tool Change Chip Time	0.00
Pallet Changer Available	Optional
Num Pallets	2
Num Axes	5
U Axis	None
X1	35.400"
Y1	39.300"
Z1	33.400"
A1	150.000°

Specifications sourced from techspex.com — verified 2026-03-28

Strengths & Limitations

Strengths

Column-moving design maintains positioning accuracy regardless of workpiece weight, critical for heavy titanium and steel parts
Scalable travel configuration from 2 to 4 meters X-axis covers a broad range of medium-large part sizes
Continuous 5-axis head with +/-100 degree A-axis provides full access to complex aerospace and mold surfaces
Fixed table simplifies fixturing and supports permanent production fixtures without dynamic load concerns
Multiple spindle speed options from 12,000 to 30,000 RPM span heavy metal cutting to high-speed aluminum machining
10,000 kg table capacity handles heavy forgings and castings that would challenge standard VMC platforms

Limitations

Column-moving design requires more floor space than an equivalent C-frame VMC due to the column's travel range behind the table
Price range of $800K-$2M is a significant investment compared to standard 5-axis VMCs
Machine weight of 25,000-40,000 kg requires foundation engineering and limits installation flexibility
SNK's service network is oriented toward aerospace and heavy industry centers, potentially slow in other regions
Longer lead times compared to stock 5-axis machines from higher-volume manufacturers

Best For

Aerospace structural component machining — wing ribs, door frames, bulkheads, and structural fittings Die and mold shops machining medium to large mold cavities and cores in tool steel Job shops specializing in medium-large precision parts that exceed standard VMC travel envelopes Defense and space industry machining of structural components in titanium, aluminum, and high-nickel alloys Shops processing heavy forgings and castings where workpiece weight would affect accuracy on moving-table machines Production environments needing 5-axis capability with the rigidity and accuracy of a column-moving architecture

Frequently Asked Questions

01 What does an SNK CMV cost?

SNK CMV machines typically price between $800,000 and $2,000,000 depending on travel configuration, spindle options, and automation. Smaller 2-meter X-travel configurations with standard spindles start near $800K, while larger 4-meter configurations with high-speed spindles approach $2M.

02 What is the advantage of a column-moving design?

In a column-moving design, the workpiece stays fixed on the table while the column moves. This means workpiece weight does not affect positioning accuracy or dynamic performance. On a moving-table machine, heavy workpieces create inertia that can reduce accuracy during rapid direction changes.

03 How does the CMV compare to the SNK HGM-5?

The CMV is a smaller, more versatile 5-axis machine for parts in the 2-4 meter range, while the HGM-5 is a full gantry machine for parts up to 20 meters. The CMV costs significantly less and requires less floor space, making it appropriate for shops that do not need the HGM's extreme travel capabilities.

04 Can the CMV machine titanium effectively?

Yes. The column-moving rigidity, 30 kW spindle power, and HSK-A63 tooling make the CMV capable of aggressive titanium machining. SNK machines are used extensively in aerospace for titanium structural components where cutting forces are high and rigidity is essential.

05 What controls are available?

The CMV is available with either Fanuc 31i-B5 or Siemens SINUMERIK 840D sl controls. Both support simultaneous 5-axis interpolation, NURBS surface machining, and high-speed surface control functions. Control choice typically depends on the shop's existing programming infrastructure.