Description

Used NAKAMURA TOME STW 40 - turning and milling machining center with 11 axes

FANUC 16i-TA control with NAK-LUCKBEI dialog system Super-Cap

The Nakamura-Tome Model STW-40 turning center is a multi-function machine with two conventional lower turrets and a W-axis milling turret accessing the twin-spindle lathe from above. The eleven programmable axes enable the most complex processing of workpieces with up to three tools at the same time.

Technical data:

Workspace

• Max. turning diameter of upper tool spindle: 570 mm
• Max. turning diameter turret bottom left and right: 400 mm
• std. Drehdurchmesser: 300 mm
• Max. turning length turret bottom left and right: 500 mm
• Max. turning length of upper WZG spindle: 1550 mm
• Distance between the spindle noses: 1900 mm
• Distance between 2 3-jaw chucks: 1500 mm

Traverse paths :

• all X-axes: 400 mm
• Z-axis: 1550 mm (upper tool spindle:)
• Z-axis of both: 550 mm (lower turret:)
• Y axis: +110 , -90
• right spindle: 1600 mm

Left / right spindle

• Drive power and torque: 22/15 kW
• Torque: 500/794 Nm
• Speed: 30-3500 rpm
• Spindle nose: A1-8
• Inside diameter in the front bearing: 130 mm
• Spindle Bore: 85mm
• max. Stangendurchlass: 71 mm
• max. chuck size: 315 mm

Right Spindle

• max. travel: 1600 mm

rapid traverses

• X-axes: 25 m/min.
• Z axes: 30 m/min.
• C1 +C2: 400 U/min.
• Y axis: 20 m/min.
• B-axis: 12.5 rpm

C - axis

• 3 axes simultaneously: X,Z,C
• Turn-on time: 0.5 sec.
• Rapid traverse speed: 400 rpm = 144000 °/min
• Feed speed: 1 - 4800 °/min
• Division accuracy: 0.011° (30 arc sec.)
• Repeatability: ± 0.006 ° (± 20 arcsec)
• Bremsmoment Spindelscheibenbremse 25 kgfm

Milling and drilling drive for upper WZG spindle CAPTO-C6

• Drive power: 15/11 KW from 800 rpm
• Motor speed: 60 to 6000 rpm
• Torque: WeldonS, 10, 12, 14, 16, 20, 25
• clamping fixtures driven Tools: ER-25/ER-32 collet

space requirement

• Length x width x height: 6,200 x 3,500 x 3,200 mm
• Weight 22000 tons

Energy requirement:

• Total connection value 160kVA
• Air consumption approx. 500 liters/minute

Additional equipment:

• 12000 rpm for upper WZG spindle - with 11 / 7.5 KW drive power and 79 / 47 Nm torque
• 80x WZG magazine
• auto. Switching the machine on and off with the warm-up program function
• Tool breakage detection with scanning flag for upper tool spindle
• 2 HD - Brinkmann pumps, for upper WZG spindle and lower turret - pump capacity = 45 liters per minute
• Hinge belt - chip conveyor with ejection to the right

The MULTI - CENTER-9 is a 9-axis CNC turning and milling machining center with two opposing spindles

Both spindles are equipped with a full C-axis for positioning and contour milling.

The left headstock is fixed, the right spindle moves to take over workpieces from the left side and support long shaft parts synchronously.
A tool spindle on the upper side of the bed and a 12-position turret on the lower side of the bed are the two tool carriers that are simultaneously engaged in the cutting process.
The tool spindle with 15 KW drive power is integrated in a flat-guided Y/B-axis construction in order to carry out off-center, angle-shifted machining to a previously unknown extent.
The B swivel axis has Hirt gearing with 5 tons of clamping force, which indexes automatically every 7.5 degrees. A disc brake takes over the clamping work between this fixed division.
The tool spindle, which is also used to hold fixed rotary tools, also has Hirtyer teeth with 3 tons of clamping force and a 4 x 90 degree pitch. This ensures twist-proof machining when turning.
With the automatic tool changer and the tool changing magazine with 40, 80 or 120 tool places, a complete production of the most demanding parts can be mounted.
The lower turret, which works optionally on both spindles, is also used for turning and milling.
The handling of the machine is selected in such a way that an active chipper handles it as quickly as possible and produces decent parts.
The two software solutions NC-Time 2000 and NC-PRAKTIKER are available to support work preparation and programming.

Your advantage
When machining the most complicated parts with variable allocation of 1 or 2 tool turrets on the left and 1 or 2 tool turrets on the right spindle
for turning and milling operations, unit costs are achieved that were previously in complete production on CNC -Machines were not recoverable.

The heart of the machine is the massive 45° monoblock inclined bed made of tempered MEEHANITE fine-grain casting with 4-way bearing linear roller guides.

Your advantage

• Greatest rigidity for machining tasks, even when 2 tools are in use
• Longest service life with constant accuracy
• Best surface qualities with simultaneous precision turning on both spindles