SC-300II

Name: SC-300II
Brand: Nakamura-Tome

Nakamura-Tome

The Nakamura-Tome SC-300II is a robust, high-speed, high-precision turning centre offering maximum versatility and productivity. With big bore capability and powerful cuts and a 10-inch chuck. The SC300II delivers high torque over a wide range, couple this with its massive cast-iron 45-degree slant bed, and you will be assured that full power is available under the heaviest of cutting conditions with no vibration or chattering.

Massive 45 Degree slant bed for maximum rigidity

22/18.5kW Wide-Range motor for powerful cuts
Quicker ‘Non-lift’ turret indexing to cut idle time
Box type slides and rigid turret for high accuracy
Bar capacity 71mm standard
All FANUC, CNC control and servo drives
Dodecagonal 12 station turret
High quality painting,as well as stainless covers

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General specification

Technical specification

Capacity	Unit	Ø71mm	Ø89mm (op.)
Max. turning diameter	mm	360
Max. turning length (Tailstock/Sub Spindle)	mm	600 / 635
Distance between centre (Tailstock)	mm	max. 713.5 / min. 213.5
Distance between spindles (Sub Spindle)	mm	max. 910 / min. 310
Bar capacity (L/R)	mm	Ø71 / Ø51	Ø89 / Ø51 (op.)
Chuck size (L/R)	Inch	10, 12 / 6, 8

Machine	Unit
Floor Space (LxWxH)	mm	3,995 x 2,130 x 2,300
Machine Weight	kg	9,000

Axis Travel / Rapid Feed	Unit
Slide travel X	mm	232.5 / 215 (Sub Spindle)
Slide travel Z	mm	635
Slide travel Y	mm	±60
Slide Travel B2 (Sub Spindle)	mm	600
Rapid feed X	m/min	25
Rapid feed Z	m/min	30
Rapid feed Y	m/min	12.5
Rapid feed B2 (Sub Spindle)	m/min	20

Left Spindle	Unit	Ø71mm	Ø89mm (op.)
Spindle speed	min-1	3,5000	3,5000
Spindle speed range		Stepless	Stepless
Spindle nose		A2-8	A2-8

Left Spindle	Unit	Ø51mm
Spindle speed	min-1	5,0000
Spindle speed range		Stepless
Spindle nose		A2-5

C-Axis	Unit
Least input increment	Deg	0.001
Least command increment	Deg	0.001
Rapid speed	min-1	200
Cutting feed rate	Deg/min	1-4,800
C-axis clamp		Disk clamp
C-axis connecting time	Sec	1.5

Turret	Unit	Dodecagonal drum	16-station
Type of turret head		Dodecagonal drum turret	16-station turret
Number of tool stations		12 stations	16 stations
Number of indexing positions		24	16
Tool size (square/round)	mm	□25 / Ø40	□20 / Ø32

Milling	Unit	Dodecagonal drum turret		16-station turret
Rotary system of turret head		Individual rotation
Spindle speed	min-1	6,000
Number of indexing positions		Stepless
Number of milling stations		12	16
Tool size (straight)	mm	Ø1 – Ø25	Ø1 – Ø16
Tool size (cross)	mm	Ø1 – Ø25	Ø1 – Ø16

Tailstock (OP.)	Unit	NC Type	Hyd. Knock type (op.)
Driving system		Z-axis slide (knock type)	NC control servo driven type
Travel / Rapid feed	mm / -	400	500mm / 8m/min
Range of thrust force	kN	1.3-7.85	2.5-6.5
Rotating centre		MT-5 (Rotating centre), MT-4 (Built-in centre)
Quill diameter / Quill stroke	mm	Ø90 / 100	-

Drive Motor Power	Unit
Left spindle	kW	22/18
Sub Spindle	kW	15/11
Milling spindle	kW	7.5/3.7	5.5/3.7

SC-300II

Nakamura-Tome

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