NILES-SIMMONS
German premium CNC turn-mill machining centers of the N-MC series, slant-bed lathes, and 5-axis Nmill milling systems.
NILES-SIMMONS N20 MC Turn-Mill Machining Centers
Multi-tasking turn-mill centers N20 MC engineered by German builder NILES-SIMMONS deliver five-axis machining for parts up to 3500 mm in length. The machine incorporates Sinumerik ONE CNC controls, Sinamics S120 drives, DIN 55026 spindle heads, and coolant supply up to 350 bar.
- Modular slant-bed architecture with swing diameter over bed reaching 650 mm
- Spindle interfaces conforming to DIN 55026 size A8 and A11 up to 350 bar
- B-axis milling spindle unit with rapid automatic tool changer magazine
- Toolholders, steady rests, chucks, Heidenhain encoders, servo motors
NILES-SIMMONS N30 MC Multi-Tasking Machining Centers
Universal turn-mill machining centers N30 MC by NILES-SIMMONS perform high-precision turning and milling of heavy shaft components up to 6500 mm in length. The platform accommodates dual independent machining slides, universal milling heads, and automated hydraulic steady rests.
- Turning lengths spanning 1500 to 6500 mm with swing diameter of 880 mm
- Duplo configuration incorporating two turn-mill units and twin ATC magazines
- Versatile gear hobbing, thread turning, and deep boring bar capabilities
- High-torque motorized spindles, precision bearings, ball screws, scales
NILES-SIMMONS N40 MC Heavy-Duty Machining Centers
Next-generation multi-tasking centers N40 MC by manufacturer NILES-SIMMONS handle heavy-duty mechanical engineering components with workpiece lengths up to 9500 mm. The heavy machine integrates rigid guideways, high-output feed drives, and digital Sinumerik ONE control architecture.
- Turning length envelope ranging from 2500 to 9500 mm for massive rotor shafts
- Deep internal boring bar slides with automated tool magazine exchange
- Optional specialized crankshaft outer milling attachment rated up to 73 kW
- Interchangeable boring tools, rotary seals, drive couplings, way covers
NILES-SIMMONS N50 MC Heavy-Duty Machining Centers
Extra-heavy turn-mill centers N50 MC from NILES-SIMMONS provide full machining for workpieces with diameters up to 1250 mm and lengths up to 7500 mm. The installation features a heavy milling head delivering up to 80 kW, an internal boring slide, and multi-pocket boring bar magazines.
- Machining envelope accommodating 1250 mm swing and turning lengths to 7500 mm
- Heavy-duty turning, drilling, and milling head rated up to 80 kW power output
- Dedicated 8-station or 16-station automated boring bar changer magazine
- Angular contact bearings, wedge clamping modules, hydraulic components
NILES-SIMMONS N-Series CNC Slant-Bed Turning Machines
The modular slant-bed CNC lathe family of the N-series by NILES-SIMMONS encompasses five machine frame sizes from N10 to N50 for high-precision production turning. The rigid bed layout dampens vibrations during heavy roughing and enables hard turning of quenched alloy steels.
- Modular range of slant-bed turning machine frames spanning N10 through N50
- Turning capacity handling workpiece diameters to 1250 mm and lengths to 7500 mm
- High-speed VDI and BMT turret disks equipped with driven live rotary tooling
- Hydraulic clamping cylinders, toolholder blocks, feedback sensors, axis brakes
NILES-SIMMONS Nmill 5-Axis Centers and Railway Machines
High-precision Nmill 5-axis machining centers and dedicated railway wheelset machines of the RQ and RMC series by NILES-SIMMONS machine aerospace turbine disks, blisks, and locomotive wheelsets. The robust kinematics deliver sub-micron repeatability for critical industrial assemblies.
- Simultaneous 5-axis milling of aerospace blisks and complex turbine disks
- Specialized vertical wheelset turning centers RQ, RQQ, RMC, and RQMC series
- Integrated touch-trigger probes and laser systems for on-machine tool setting
- Rotary tilting tables, drive pinions, hydraulic chucks, servo feed motors
Structural Features and Kinematic Design of N20 MC and N30 MC Centers
German machine tool builder NILES-SIMMONS engineers N20 MC and N30 MC multi-tasking centers upon heavy-duty slant beds fabricated from modified grey cast iron with damping characteristics.
This structural approach dampens micro-vibrations generated during aggressive roughing of alloy steels, heat-resistant superalloys, and heavy forgings, preserving geometric precision across operating cycles.
The kinematic arrangement pairs a powerful main motorized spindle conforming to DIN 55026 size A8 or A11 with a continuously interpolating B-axis universal milling head and lower turret slide.
Supporting twin independent slides under Duplo configurations alongside automated self-centering hydraulic steady rests allows complete turning and five-axis milling of long shafts up to 880 mm in diameter in a single clamping.
Combined Multi-Tasking Turning and Simultaneous 5-Axis Milling Capabilities
TURN-MILL machines manufactured by NILES-SIMMONS combine turning, deep drilling, tapping, spur and helical gear hobbing, and fine grinding within a unified working volume.
The B-axis milling head outputs high rotational torque and utilizes dynamic TRAORI vector transformations, enabling five-axis continuous profile milling of intricate contours, helical flutes, and deep bores at complex angular positions.
For hardened workpieces, NILES-SIMMONS platforms leverage precision hard turning technology to replace downstream cylindrical grinding steps, shortening factory lead times.
High-pressure through-spindle cutting fluid delivery operating up to 350 bar cools carbide insert tool tips and evacuates chips from deep-hole internal machining zones.
Heavy-Duty Machining Architecture and Deep Boring Options for N40 MC and N50 MC
Engineered for large components in power generation, oil and gas, and maritime propulsion, NILES-SIMMONS N40 MC and N50 MC heavy-duty turn-mill centers feature center distances extending to 9500 mm and swing diameters reaching 1250 mm.
The heavy equipment incorporates a reinforced secondary boring slide specifically designed for internal turning and deep cylindrical boring of heavy tubular forgings and turbine rotor shafts.
The dedicated boring slide docks seamlessly with automated 8-pocket or 16-pocket chain and rotary boring bar storage magazines. Long boring bars fitted with CNC-steered internal quills and hydraulic vibration dampers eliminate tool deflection when boring several meters into massive workpieces.
For large engine production, an external crankshaft milling attachment can be fitted to the upper compound slide.
Sinumerik ONE Numerical Control Integration with Sinamics S120 Drive Systems
The electronic motion architecture of NILES-SIMMONS machine tools is built on Siemens Sinumerik ONE hardware paired with digital multi-axis Sinamics S120 servo drives.
High-speed CNC processors calculate five-axis trajectories in real time with nanosecond interpolation cycle times, compensating for thermal expansions of the machine structure and elasticity under dynamic cutting forces.
Position feedback for all linear slides and rotary axes is captured by optical Heidenhain linear scales and direct rotary encoders, eliminating backlash errors from ball screw drives.
Onboard machine software includes continuous digital tool condition monitoring, preventing mechanical overload when cutting inserts wear down and securing repeatable part tolerances.
Specialized Nmill 5-Axis Systems and Dedicated Railway Production Machinery
Beyond universal turn-mill installations, NILES-SIMMONS produces high-precision Nmill 5-axis machining centers designed for high-speed contour milling of aerospace components, including gas turbine blisks, compressor impellers, and airframe spars.
The portal kinematics of Nmill deliver dynamic feed motion across five degrees of freedom with high spindle speeds.
Another core sector for the Chemnitz factory is dedicated vertical wheelset lathes and milling centers of the RQ, RQQ, RMC, and RQMC series built for the rail transport industry.
Fitted with reinforced chucks and adaptive wheel clamping mechanisms, these machines perform turning, reprofiling, and maintenance on railway rolling stock wheelsets and locomotive wheel pairs.
Laser Geometry Calibration, Alignment Procedures, and Machine Tool Maintenance
Maintaining the factory-rated precision of NILES-SIMMONS multi-tasking centers requires adherence to scheduled preventative maintenance intervals and kinematic recalibration.
Laser interferometer systems and precision granite squares verify linear guideway straightness, coordinate orthogonality, and spindle runout under load.
Routine replacement of high-pressure coolant filter elements, continuous monitoring of hydraulic oil cleanliness, and guideway lubrication checks protect machine systems from unplanned downtime.
During scheduled maintenance, technicians verify Heidenhain feedback scale alignments, re-tune B-axis swivel heads, and calibrate software backlash compensation values in the Sinumerik ONE system.
NILES-SIMMONS and model names are trademarks of their respective owners and are used only to identify the equipment for which we source parts. SpareX is not an official dealer, distributor or representative of NILES-SIMMONS and is not affiliated with the trademark owner. Origin, documents and warranty are stated for each item in the quotation.
