Niles-Simmons N60 MC

$1,200,000 - $2,500,000 Updated 2026-03-14

Key Specifications

X Travel

600 mm (23.6 in)

Y Travel

+/-150 mm (+/-5.91 in)

Z Travel

4,000 - 12,000 mm (157.5 - 472.4 in)

Max Turn Length

4,000 - 12,000 mm (157.5 - 472.4 in) configurable

max swing diameter

1,200 mm (47.2 in)

main spindle power

100 kW (134 hp) continuous

Overview

The Niles-Simmons N60 MC is the largest standard mill-turn center in the Niles-Simmons lineup, engineered for complete machining of the heaviest shafts, rotors, and cylindrical components found in power generation, marine propulsion, and heavy industrial applications. With a maximum swing of 1,200 mm over the bed and turning lengths configurable from 4,000 mm to 12,000 mm, the N60 MC operates in territory where most mill-turn competitors simply do not build. Parts like large gas turbine rotors, ship propeller shafts, industrial rolls, and heavy forged crankshafts are the daily diet of this machine.

The main spindle delivers 100 kW (134 hp) continuous with speeds to 1,500 rpm through a direct-drive motor, providing the torque needed to rough large-diameter forgings in Inconel, 4340 steel, and other demanding materials. The milling spindle produces 37 kW (50 hp) at speeds to 8,000 rpm, mounted on a continuous B-axis head for compound angle machining. With Y-axis travel of +/-150 mm, the N60 MC can mill complex features including oil holes, keyways, splines, and profiled surfaces across the full length of the workpiece without unclamping.

The N60 MC bed is a massive monolithic casting weighing upward of 30 tons on its own, providing the mass and rigidity to absorb cutting forces from heavy roughing passes. All linear axes ride on hardened box guideways with hydrostatic assist on the Z-axis for the longest travel configurations, ensuring smooth motion and eliminating stick-slip across the full bed length. Multiple programmable steady rests support long workpieces, and the tailstock provides hydraulic clamping with programmable quill advance.

New N60 MC machines are custom-quoted and typically fall in the $1,200,000 to $2,500,000 range depending on bed length and configuration. The machine has no direct competitor from Japanese or Korean builders at this scale — it competes with WFL Millturn M120/M150, Heyligenstaedt HN series, and custom-built large lathes from Ryazan or Kramatorsk. Niles-Simmons installations of the N60 MC can be found at major power generation OEMs and aerospace primes across Europe and Asia.

Full Specifications

Parameter	Value
Max Swing Diameter	1,200 mm (47.2 in)
Max Turning Length	4,000 - 12,000 mm (157.5 - 472.4 in) configurable
Main Spindle Power	100 kW (134 hp) continuous
Main Spindle Speed	1,500 rpm
Main Spindle Bore	180 mm (7.09 in)
Milling Spindle Power	37 kW (50 hp)
Milling Spindle Speed	8,000 rpm
B Axis Range	+/-120 degrees
B Axis Resolution	0.001 degree
X-Axis Travel	600 mm (23.6 in)
Y-Axis Travel	+/-150 mm (+/-5.91 in)
Z-Axis Travel	4,000 - 12,000 mm (157.5 - 472.4 in)
Tool Magazine Capacity	80 - 160 tools
CNC Control	Siemens 840D SL
Tailstock Type	Programmable with hydraulic clamping
Steady Rests	Multiple programmable, hydraulic
Machine Weight	60,000 - 120,000 kg (132,277 - 264,555 lb) depending on length
Sun	Mon
Swing Over Bed	59.055"
Power	154.2 hp
Max Rpm	1,400 RPM
Brand	NILES-SIMMONS
Model	N60 MC
Id	697655
Type	CNC Lathes
Condition	New Build-to-Order
Location	United States
First Name	Last Name
Will You Need Financing	YesNo
Yes	No
Will You Need Freight Service	YesNo

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

Strengths & Limitations

Strengths

1,200 mm swing and turning lengths to 12,000 mm handle the largest shafts and rotors in power generation and marine industries
100 kW main spindle delivers the torque needed for heavy roughing of large forgings in Inconel, 4340, and other tough materials
Complete mill-turn capability eliminates multiple setups on high-value components where each re-clamping introduces tolerance risk
Hydrostatic Z-axis assist on long configurations ensures smooth motion and eliminates stick-slip across 12,000 mm of travel
Multiple programmable steady rests support long slender workpieces during heavy cutting operations
Monolithic bed casting provides the mass and rigidity essential for vibration-free machining at this scale

Limitations

Custom pricing from $1,200,000 to $2,500,000+ limits the buyer pool to major OEMs and well-funded contract shops
8,000 rpm milling spindle is relatively slow for light-alloy work, though appropriate for the steel and superalloy applications this machine targets
Extremely large footprint and weight (up to 120 tons) require purpose-built foundations and high-capacity overhead cranes
Very limited global service network; major maintenance typically requires factory-trained Niles-Simmons engineers from Germany
1,500 rpm main spindle speed limits high-speed finishing on smaller diameters, though this is typical for machines of this scale

Best For

Gas and steam turbine rotor manufacturers requiring complete machining of large forgings with turned and milled features Marine propulsion builders machining long propeller shafts, intermediate shafts, and stern tube assemblies Industrial roll manufacturers turning and milling steel mill rolls, paper mill rolls, and printing cylinders Power generation equipment builders processing generator rotors, exciter shafts, and large coupling components Large crankshaft producers for marine diesel engines and stationary power generation engines Aerospace forging shops machining oversized landing gear components and structural forgings

Frequently Asked Questions

01 What does a Niles-Simmons N60 MC cost?

The N60 MC is custom-quoted with prices typically ranging from $1,200,000 to $2,500,000 depending on turning length, spindle configuration, and automation. Machines configured at the longest bed lengths with full automation approach the upper end of this range.

02 How does the N60 MC compare to a WFL Millturn M120?

Both are large European mill-turn centers for heavy shaft and rotor work. The WFL M120 is Austrian-built and offers modular configurations with a broader range of milling head options. The Niles-Simmons N60 MC emphasizes massive bed rigidity and hydrostatic guideway technology. Both compete at a similar price level.

03 What workpiece weight can the N60 MC handle?

The N60 MC supports workpiece weights up to approximately 10,000-15,000 kg depending on configuration, supported between the main spindle and tailstock with programmable steady rests. Specific weight limits depend on the number and placement of steady rests.

04 Can the N60 MC machine superalloys like Inconel?

Yes. The 100 kW main spindle and rigid box guideway construction are well-suited for machining Inconel, Waspaloy, and other nickel-based superalloys commonly used in gas turbine rotors. The high torque at low speed is exactly what these materials demand.

05 What is the typical lead time for an N60 MC?

Due to the custom nature of these machines, lead times typically run 18-30 months from order to delivery. Foundation preparation and site work can often be completed during the manufacturing period.