Niles-Simmons N40S
This model was not found in Niles-Simmons's current lineup when we checked on 2026-10-03 . It may be a superseded or older model; the specifications below are as we last recorded them.
Key Specifications
Max Turn Length
max swing diameter
spindle nose
live tooling
c axis resolution
eccentric turning
How much does the Niles-Simmons N40S cost?
Estimated price range
Our best estimate for a cnc lathes / turning center in this class — not a quote from Niles-Simmons. Configuration moves it a long way.
Overview
The Niles-Simmons N40S is a shaft turning center built for crankshafts and similar long parts: the listed figures give a swing of about 400 mm (15.7 in) and a turning length of 3,000 - 6,000 mm depending on configuration. It is not in Niles-Simmons's current lineup, so read the listed figures as a guide to an older machine.
What sets it apart is eccentric turning. The table lists crankpin journal machining with phase indexing, meaning the machine turns pin journals that sit off the main axis and indexes the shaft from one throw to the next. Together with live tooling for milling and drilling and a C axis with 0.001 deg resolution, a crankshaft or camshaft can have its turned, milled and drilled features cut in fewer setups. The listed workpiece types are crankshafts, camshafts, industrial shafts and spindles.
The structure is described as a heavy cast iron bed with wide box slideways, and the coolant system as high-pressure coolant with a chip conveyor. The spindle nose is listed as DIN 55026 / A2-11 equivalent. Control is Siemens SINUMERIK 840D sl with Niles-Simmons shaft machining software and OPC-UA connectivity.
Several things a buyer needs are missing from the table: spindle power, speed and torque, tool capacity and workpiece weight. The swing of about 400 mm (15.7 in) is also modest for the length. For comparison, the N40 MC lists turning lengths from 2,500 to 9,500 mm and an A15 (DIN 55026) spindle nose.
Full Specifications
| Parameter | Value |
|---|---|
| Max Swing Diameter | ~400 mm (15.7 in) |
| Max Turning Length | 3,000 - 6,000 mm (depending on configuration) |
| Spindle Nose | DIN 55026 / A2-11 equivalent |
| Live Tooling | Yes — milling and drilling with C-axis |
| C Axis Resolution | 0.001 deg |
| Eccentric Turning | Yes — crankpin journal machining with phase indexing |
| Workpiece Type | Crankshafts, camshafts, industrial shafts, spindles |
| CNC Control | Siemens SINUMERIK 840D sl with Niles-Simmons shaft machining software |
| Connectivity | OPC-UA Industry 4.0 standard |
| Guideway Type | Heavy cast iron bed, wide box slideways |
| Coolant System | High-pressure coolant with chip conveyor |
Specifications compiled from manufacturer literature and industry references. Not independently verified against a published spec sheet — confirm with the manufacturer or an authorised dealer before making a purchasing decision.
Strengths & Limitations
Strengths
- Eccentric turning is listed: crankpin journal machining with phase indexing
- Turning length of 3,000 - 6,000 mm, depending on configuration, for long shafts
- Live tooling for milling and drilling with a C axis of 0.001 deg resolution
- Heavy cast iron bed with wide box slideways
- High-pressure coolant with chip conveyor is listed
Limitations
- Not in Niles-Simmons's current lineup; the listed figures are a guide to an older machine
- Swing is about 400 mm (15.7 in), which limits the diameter of the part and the throw of a crankshaft
- No spindle power, speed or torque figures are listed
- No tool capacity or workpiece weight is listed
Best For
Frequently Asked Questions
01
The listed workpiece types are crankshafts, camshafts, industrial shafts and spindles. The machine is listed with eccentric turning for crankpin journal machining with phase indexing, plus live tooling for milling and drilling with a C axis.
02
The maximum swing diameter is listed as about 400 mm (15.7 in) and the maximum turning length as 3,000 - 6,000 mm depending on configuration. No workpiece weight is listed.
03
Yes. Live tooling for milling and drilling with a C axis is listed, and the C-axis resolution is given as 0.001 deg. No driven-tool speed or power is listed, so milling capability should be confirmed on the machine.
04
It is not in Niles-Simmons's current lineup. The listed figures on this page have to be taken as a description of an older model. For comparison, the N40 MC lists turning lengths from 2,500 to 9,500 mm.
05
The control is Siemens SINUMERIK 840D sl with Niles-Simmons shaft machining software, and connectivity is listed as OPC-UA Industry 4.0 standard. The spindle nose is listed as DIN 55026 / A2-11 equivalent, which decides which chucks and drivers fit.
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