Nexturn SA(PII) 7-Axis Swiss Lathe Series

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The SA(PII) is our mid-level machine available with or without rotary synchronous guide bushing. It features a total of 7 axes (Z1, X1, Y, Z2, X2, C1, and C2) and up to 23 total tools. Bar capacity is 20/26/32/38mm with 250mm (9.8”) maximum turning length in one chucking. High precision integral motor spindles on both main and sub provide excellent precision and fast cycle times.

The machine is built for rigidity, accuracy, reliability, and ease of use. The highly rigid one-piece cast iron machine bed is designed using FEM software. Powerful motors for both turning and milling deliver outstanding machining capability. The use of ultra-precision pre-tensioned ballscrews and LM guides produce high accuracy. High speed positioning of 1260”/min. reduces cycle times. A sliding operators door, as opposed to a lift up style door, provides easy access to the machining area and is drip free.

Item / Model	SA-20PII Request a Quote	SA-32PII Request a Quote	SA-38PII Request a Quote
	FREE TRACER 20 Bar Feeder Package Price starts at $159,900	FREE TRACER 32V Bar Feeder Package Price starts at $189,900	FREE TRACER 51V Bar Feeder Package Price starts at $199,900
Number of Axes	7	7	7
Number of Channels	2	2	2
Bar Capacity (Front/Rear)	20 mm / 20 mm	32 mm / 32 mm	38 mm / 38 mm
Guide Bushing Type	Synchronous	Synchronous	Synchronous
Main Spindle	5 HP /10,000 RPM	10 HP / 8,000 RPM	10 HP / 8,000 RPM
Sub Spindle	3HP / 8,000 RPM	5 HP / 8,000 RPM	5 HP / 8,000 RPM
Max. Turn Length	10″	10″	10″
Total Tools	23	20	19
Fixed Tools (Front/Rear)	12 / 3	12 / 2	11 / 2
Live Tools (Front/Rear)	6 / 2	4 / 2	4 / 2
Live Tools	3 HP / 6,000 RPM	3 HP / 6,000 RPM	3 HP / 6,000 RPM
B Axis	N/A	N/A	N/A
C Axis Contouring	Main/Sub	Main/Sub	Main/Sub
CNC Control	FANUC OiTF	FANUC OiTF	FANUC OiTF
Weight	7,260 lbs.	7,700 lbs.	7,920 lbs.

Item / Model

SA-20PII

SA-32PII

SA-38PII

FREE TRACER 20 Bar Feeder
Package Price starts at $159,900

FREE TRACER 32V Bar Feeder
Package Price starts at $189,900

FREE TRACER 51V Bar Feeder
Package Price starts at $199,900

Number of Axes

Number of Channels

Bar Capacity (Front/Rear)

20 mm / 20 mm

32 mm / 32 mm

38 mm / 38 mm

Guide Bushing Type

Synchronous

Main Spindle

5 HP /10,000 RPM

10 HP / 8,000 RPM

Sub Spindle

3HP / 8,000 RPM

5 HP / 8,000 RPM

Max. Turn Length

10″

Total Tools

Fixed Tools (Front/Rear)

12 / 3

12 / 2

11 / 2

Live Tools (Front/Rear)

6 / 2

4 / 2

Live Tools

3 HP / 6,000 RPM

B Axis

N/A

C Axis Contouring

Main/Sub

CNC Control

FANUC OiTF

Weight

7,260 lbs.

7,700 lbs.

7,920 lbs.

Item / Model

SA-20PII

SA-32PII

SA-38PII

How are Swiss lathes and conventional lathes different?

The guide bushing is the key difference that separates Swiss lathes from conventional lathes. On a CNC Swiss lathe, the guide bushing holds the workpiece close to the cutting tool, which gives significantly improved support for greater precision through the entire cutting process. This results in the ability to achieve a high quality surface finish. On a conventional lathe, the workpiece is held by a chuck; when the cutting tool is machining material further away from the chuck, stability is reduced, which tends to result in a poorer surface finish quality.

Is a rotary or fixed guide bushing better?

While both have their uses, a rotary guide bushing is generally the preferred option. The rotary guide bushing acts as a slave to the material being machined, spinning along with it. If the rotary guide bushing is set properly, this keeps material from getting into the guide bushing. Because the guide bushing stays in contact with the part, the amount of marring or scratching is reduced, resulting in excellent surface finish. On the other hand, a fixed guide bushing stays static while the bar stock rotates. This tends to result in damage to the material it is holding.

How many axes does a Swiss lathe have?

The number of axes a Swiss lathe will have varies. For instance, the Nexturn SA(PII) features a total of 7 axes (Z1, X1, Y, Z2, X2, C1, and C2). Most conventional Swiss machines have anywhere from 7-9 axes.

Nexturn SA(PII) 7-Axis Swiss Lathe Series

How are Swiss lathes and conventional lathes different?

Is a rotary or fixed guide bushing better?

How many axes does a Swiss lathe have?

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