Niles-Simmons N20 MC
Key Specifications
X Travel
Y Travel
Max Spindle
Tool Capacity
Rapid Traverse
Spindle Power
How much does the Niles-Simmons N20 MC cost?
Estimated price range
Our best estimate for a mill-turn / multi-tasking machine in this class — not a quote from Niles-Simmons. Configuration moves it a long way.
Overview
The Niles-Simmons N20 MC is the smallest of the three MC mill-turn machines, with a 650 mm swing and six bed lengths giving 1,000, 1,500, 2,000, 2,500, 3,000 or 3,500 mm of turning length. It pairs a main spindle in A8 or A11 size with a B-axis milling spindle that runs to 10,000 rpm.
The two spindle noses are different machines in practice. The A8 spindle has a 92 mm bore and is rated 34 kW at 40% duty and 30.4 kW at 100%, with 655 | 580 Nm, and its speed is listed as 0 – 2,500 (3,800) rpm. The A11 has a 105 mm bore, 40 kW at 40% duty and 31 kW at 100%, and 1,337 | 1,200 Nm, but stops at 1,800 rpm. So the A11 roughly doubles the torque for heavier parts, while the A8 keeps the speed for smaller diameters. Niles-Simmons's table does not explain the bracketed 3,800 rpm figure, so ask what it requires.
The milling spindle takes HSK-T 63 or Capto C6 (PSC 63) tooling and is rated 33 kW at 40% duty and 30 kW at 100%, with 245 | 164 Nm of torque. The B axis swivels from -15 to +185 degrees. Tools can weigh up to 15 kg, and the magazine is listed as 48 (60) or 96 (120) pockets. X travel runs from -15 to +660 mm and Y from -150 to +200 mm, so the Y stroke is not symmetric about the spindle centreline.
Rapids are 25 | 12 | 40 m/min in X, Y and Z, and the 40 m/min Z rapid is the fastest in the family: the N40 MC lists 30 m/min in Z and the N60 MC 24 m/min. The tailstock has an MK 5 centre, with quill travel listed as 160 | 166 mm and clamping force as 3 – 17 | 4 – 25 kN. The table does not say which variant gets which, so confirm it with the spindle choice. Machine length grows from 5,288 mm to 8,433 mm across the six beds and weight from 18 t to 26 t. The control is SINUMERIK ONE.
Full Specifications
| Parameter | Value |
|---|---|
| CNC Control | SINUMERIK ONE |
| Max Turning Length | 1,000 | 1,500 | 2,000 | 2,500 | 3,000 | 3,500 mm |
| Swing Diameter | 650 mm |
| X-Axis Travel | -15 – +660 mm |
| Y-Axis Travel | -150 – +200 mm |
| Spindle Nose | A8 | A11 (DIN 55026) |
| Spindle Bore | 92 mm (A8); 105 mm (A11) |
| Spindle Bearing Diameter | 150 mm (A8); 180 mm (A11) |
| Spindle Motor Power | 34 | 30.4 kW (A8); 40 | 31 kW (A11); 40% | 100% duty cycle |
| Max Spindle Speed | 0 – 2,500 (3,800) rpm (A8); 0 – 1,800 rpm (A11) |
| Spindle Torque | 655 | 580 Nm (A8); 1,337 | 1,200 Nm (A11); 40% | 100% duty cycle |
| C Axis Speed Range | 0 – 100 rpm |
| Milling Tool System | HSK-T 63 | Capto C6 (PSC 63) |
| Milling Spindle Power | 33 | 30 kW (40% | 100% duty cycle) |
| Milling Spindle Speed Max | 10,000 rpm |
| B Axis Swivel Range | -15 – +185 degrees |
| Milling Spindle Torque | 245 | 164 Nm |
| Rapid Traverse Rate | 25 | 12 | 40 m/min (X, Y, Z) |
| Tool Capacity | 48 (60) | 96 (120) pockets |
| Max Tool Length | 600 | 600/400 mm |
| Max Tool Weight | 15 kg |
| Tailstock Quill Travel | 160 | 166 mm |
| Tailstock Quill Diameter | 140 | 150 mm |
| Tailstock Quill Centre | MK 5 |
| Tailstock Clamping Force | 3 – 17 | 4 – 25 kN |
| Center to Center Distance | 1,000 | 1,500 | 2,000 | 2,500 | 3,000 | 3,500 mm |
| Machine Length | 5,288 | 5,788 | 6,288 | 6,788 | 7,288 | 8,433 mm |
| Machine Weight | 18 | 19 | 20 | 22 | 24 | 26 t |
Specifications sourced from nshgroup.com — verified 2026-10-03
Strengths & Limitations
Strengths
- Milling spindle runs to 10,000 rpm with 33 kW at 40% duty (30 kW at 100%) on HSK-T 63 or Capto C6 (PSC 63) tooling
- Choice of A8 main spindle (92 mm bore, 655 | 580 Nm) or A11 (105 mm bore, 1,337 | 1,200 Nm)
- Six turning lengths from 1,000 to 3,500 mm on a 650 mm swing
- B axis swivels from -15 to +185 degrees
- Z rapid of 40 m/min, against 30 m/min on the N40 MC and 24 m/min on the N60 MC
- Lightest of the MC machines at 18 to 26 t, where the N40 MC starts at 55 t
Limitations
- The A11 spindle is limited to 1,800 rpm, and the A8 gives up torque: 655 | 580 Nm against 1,337 | 1,200 Nm
- Y travel is -150 to +200 mm, the shortest in the MC family; the N40 MC lists -350 to +350 mm
- Maximum tool weight is 15 kg, against 25 kg on the N40 MC and N60 MC
- Y rapid is 12 m/min, well below the 25 m/min of X and 40 m/min of Z
Best For
Frequently Asked Questions
01
The A8 has a 92 mm bore and a 150 mm bearing diameter, 34 kW at 40% duty (30.4 kW at 100%), 655 | 580 Nm and a listed speed of 0 – 2,500 (3,800) rpm. The A11 has a 105 mm bore and a 180 mm bearing diameter, 40 kW at 40% duty (31 kW at 100%), 1,337 | 1,200 Nm and a top speed of 1,800 rpm.
02
The milling spindle runs to 10,000 rpm and is rated 33 | 30 kW at 40% | 100% duty cycle with 245 | 164 Nm of torque. It takes HSK-T 63 or Capto C6 (PSC 63) tools and swivels on a B axis from -15 to +185 degrees. Y travel is -150 to +200 mm.
03
Six. Turning length and centre distance are both listed as 1,000, 1,500, 2,000, 2,500, 3,000 or 3,500 mm. Machine length runs from 5,288 mm for the shortest to 8,433 mm for the longest, and weight from 18 t to 26 t.
04
The magazine is listed as 48 (60) or 96 (120) pockets. Maximum tool weight is 15 kg and maximum tool length is listed as 600 | 600/400 mm. The table does not explain the bracketed pocket counts or the second length figure, so confirm them for the magazine being ordered.
05
The N20 MC turns up to 3,500 mm and weighs 18 to 26 t. The N40 MC lists turning lengths of 2,500 to 9,500 mm, an A15 (DIN 55026) spindle nose with a 160 mm bore and a weight of 55 to 85 t.
Videos
THE NSH GROUP (NILES-SIMMONS-HEGENSCHEIDT)
THE NSH GROUP (NILES-SIMMONS-HEGENSCHEIDT)
EMUK GmbH Werkzeugmaschinen
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