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BNA- 42GTYConfigured with two spindles, one turret, 2 x Y axes, gang tools and X3 axis to back spindle, the BNA-42GTY can mount up to 45 tools.
• 3 tool simultaneous cutting • high productivity with fast cycle times• renowned Miyano accuracy • versatile tool layout2
4
Designed for accuracy and long tool life
Substantial Reduction in Non-cutting Time
Spindle Motors with Increased Output Easy to Use Tooling System
High-rigidity hand scraped sl ideways are used on all axes. T h e s e s l i d e w a y s w i t h f a c e c o n t a c t s have exceptional rigidity and damping c h a r a c t e r i s t i c s , e n a b l e p o w e r f u l cutt ing, and help to prolong cutt ing tool life. The bed where major machine units such as spindles and tool sl ides a r e m o u n t e d h a s a p l a t f o r m - l i k e surface table structure. T h e u n i t m o u n t i n g f a c e s a r e n o t distorted by the effects of heat , and even if the units are subject to thermal expansion they are all displaced in the same direction (perpendicular to their mounting faces) , minimizing relat ive d e v i a t i o n s b e t w e e n t h e w o r k p i e c e and cutting tools.
The unique control system cuts non-cutting time by 27% (compared to earlier equivalent Miyano products).The result is a 13% reduction in cycle time.
The spindle 1 motor has the highest output in the BNA series. This enables powerful cutting.
T h e t u r r e t h a s 8 s t a t i o n s , b u t t h e h a l f - i n d e x i n g mechanism makes it possible to mount tools at up to 16 positions. The use of optional multiple tool holders can further increase the number of tool positions.
100
0.1 10
50
100
200
0.5
1.0
5.0
10.0
500 1000 5000
Spindle speed(min-1)
Output(kW)
1500 2000 4500 7632
1179 1572 3537 6000
Torque(Nm)
89.1 Nm(15min)
45.6 Nm(cont.)
11 kW(15min)
7.5 kW(cont.)
89.1 Nm(15min)
45.6 Nm(cont.)
11 kW(15min)
Motor pulley diameter: φ125mmSpeed-reduction rate: 0.786Spindle pulley diameter:φ159mm
Motor(min-1)
Spindle(min-1)
7.5 kW(cont.)
Cutting time Non-cutting time
Conventional machine
BNA
147sec.
127.5sec.
75.5sec. 71.5sec.
27% reduction (non-cutting time)
13% reduction (total cycle time)
75.5sec. 52sec.
Workpiece
X1
Z1
Y1Y1
X2
Z2
HD1SP1
SP2
Z3
X3
Y2
5
Cycle time shortened by superimposition controlSuperimposition control allows simultaneous cutting with two tools at the main spindle (SP1), or with three tools when the sub spindle (SP2) is included, shortening cycle times.
Examples
■ Independent simultaneous machining of front/ back faces
Simultaneous machining with 2 tools Simultaneous machining with 3 tools
■ Superimposition simultaneous machining of front/ back faces
■ Simultaneous machining of front/ back faces
■ Superimposition simultaneous machining of front/ front/ back faces
TurningM
illing
Superimposition SuperimpositionSuperimposition
Superimposition Superimposition Superimposition
Superimposition
Superimposition
Superimposition
6
Support screens improve operating convenience
External view
T h e p r o g r a m s c r e e n , o r g a n i z e d f o r e a s y r e a d i n g , c a n b e displayed in synchronization with the editing screen. This simplifies the editing of complex programs with a lot of queuing.
A l l y o u h a v e t o d o i s i n p u t t h e m a c h i n i n g l e n g t h , c h u c k i n g l e n g t h a n d s o o n , a n d t h e e s c a p e a n d a p p r o a c h p o s i t i o n s a r e automatically calculated. This is useful for collision prevention and shortening setup times.
HMI (Human Machine Interface) is adoptedG r a p h i c s d i s p l a y e d f o r e a c h i t e m a n d s c r e e n s t h a t d i s p l a y a l l t h e n e c e s s a r y i n f o r m a t i o n i n o n e p l a c e g r e a t l y i m p r o v e o p e r a t i n g convenience.
The coordinate calculation function and calculator function incorporated in the NC unit can be used for complex intersection point calculations.
P r o g r a m s f o r c a n n e d c y c l e s e t c . c a n b e c r e a t e d i n t h e conversational style.
The function displays the list of G and M codes including explanations of the arguments to support programming.
1120
1658
530648
1508
2350 460
2810
58
182
7
Tooling system
Tooling area
31 55
166
238
21.649
390
227
140 Z1-st.110
Z3-st.360
X3-
st.1
9012
14.152.9
Z2-st.235
85 37
85
103.5 44 52.5
37
Y1-
st.2
60
25
5050
5050
50
X1-st.95
45
4040
17.5
17.5
20
20 20
8方 H200X2-st.14044
3535
40
4040
(139.681)
128
(166
.035
)
(209
.426
)
(252
.817
)
(144.525)
(149.37)
- +
Y2-
st.7
0
20
3 110
8
5
110
95
19
115
Ø11
8
3
3.9
Ø10
0.4
3 110
3
Ø42
Φ25
30°
�405
78
20
Φ11
8
55
Reference point
- +Reference point
- +Reference point
-+ R
efer
ence
poi
nt
-+ R
efer
ence
poi
nt
- +Reference point - +Reference point
-+
Ref
eren
ce p
oint
Triple sleeve holderφ25
Double sleeve holderφ25 8 Station turret
Pull out finger
Drill bush 20Drill holder
Round hole bush
Collet holder
Tapping colletCollet holder
Center drill
Straight drill
Boring tool
Double turning holder□20
Turning holder S□20
Cut off tool holder□20×12
Turning tool
Z Double spindle unitER11/AR11
X Spindle unitER16/AR16
Z Spindle unitER16/AR16
Knee tool holder□20
Stopper plate ZS Spindle unitER16/AR16
Chuck collet
Tapping collet
Nut
Tap
Center drill
End mill
Straight shank drill
Tapp collet
Chuck collet
Double turning holder S□20
Turning holder□20
Stopper plate S
Double sleeve holder Aφ25
Plain holder & turning□20 φ25
Double sleeve holder Dφ25
Quad sleeve holderφ25
Double turning toll holder□20
Triple turning tool holder□20
X Double spindle unitER11/AR11
Z Quad spindle unitER11/AR11
Nut
Center drill
Chuck collet
Tapping colletTap
End mill
Straight shank drill
Drill bush 20Drill holder
Round hole bush
Collet holder
Tapping colletCollet holder
Center drill
Center drill
Straight drill
Straight shank drill
Boring tool
Tap
Straight shank reamer
Chuck collet
Turning tool
Chuck collet
Tapping colletNutTap
Center drill
End mill
Straight shank drill
Tapp collet
Turning tool holder□20
Revolving unitER16/AR16(3 positions)
Back tool postØ25
Round shank tool for external
Revolving tool drive unit
Gang tool slide
Center drill
Straight shank drill
Tap
Straight shank raemer
Items BNA-42GTYMachining capacity Max. machining diameter of bar work SP1 φ 42mm SP2 φ 34mm Max. machining length 110mm Spindle Number of spindle 2 Spindle speed range SP1 6,000min-1 SP2 5,000min-1Spindle minimum index angle SP1 0.001° SP2 0.001°Turret Number of turret 2 Tool for SP1 Turning 3 Drill/ Bore - Revolving tool 3 Tool for SP2 Turning - Drill/ Bore 7 Revolving tool - Type of turret 8St. Revolving tool 8(Op.) Max. number of tools 21 〜 45 Shank size of turning tool □ 20mm Diameter of sleeve holder φ 25mm Revolving tool chuck AR16( φ 10) Tool spindle speed range 6,000min-1Slide stroke Traverse rate/ Feed rate Z1 axis 110mm 30m/min X1 axis 95mm 24m/min Y1 axis 260mm 30m/min Z2 axis 235mm 20m/min X2 axis 140mm 20m/min Y2 axis 70mm 12m/min Z3 axis 360mm 20m/min X3 axis 190mm 12m/minMotors Spindle drive SP1 11/7.5kw (15min/cont.) SP2 5.5/3.7kw (15min/cont.) Revolving tool drive Turret 1.0kW Gang tool 1.5kWPower supply Electrical capacity 28KVA Air supply 0.5MPa Coolant tank capacity 165LMachine dimensions Machine height 1,680mm Floor space W2,350 × D1,475mm Machine weight 3,500kgOptionsSpindle air blow, Spindle Brake, High pressure coolant, Inner High pressure coolant & Air blow, Coolant level swich, Signal tower, Coolant mist collector, Automatic power shut-off, Chip conveyor, Chip box, Parts catcher, Parts conveyor, Drill breakage detector, RS-232C, 100V
PRINTED IN JAPAN JAN. 2013
Machine specification
Model device MITSUBISHI M730VSDisplay devise 10.4”color LCDControllable axis command specified axes X1, Z1, Y1, C1-axis X2, Z2, Y2, C2-axis X3, Z3-axis auxiliary axes C3, C4, TI-axisControl axis groups 3 groupsInput code ISOCommand input system Incremental and absoluteFeed command system Per rotation feed and per minuteCutting feed rate and Rapid feed override Max.100%Tool offset data 80 pairsProgram storage capacity 320mStandard function On machine program check function Manual feed function Manual data input (MDI) function Operation time display Product counter display Cycle time check function Preparation functions Start position automatic return Automatic cut-off machining function Tool set function Spindle speed simultaneous command for 3 spindle 3 Sets of M code simultaneous command Control axis swap function Control axes superimpose command Arbitrary superposition function Function to superimpose 2 pairs of axes Background editing Simultaneous program editing two control axis group Editing support functions Calculator function Code list display Coordinate calculation function Spindle C-axis function spindle Constant surface speed control Cut off confirmation Tool nose R compensation function Arc radius specification Thread cutting canned cycle Spindle synchronizing control function Milling interpolationOption Helical interpolation, Corner chamferring/ Radius function, Spindle synchronous tap function, Revolving tool synchronous tap function, Custom macro, Multiple canned cycles for turning, Canned cycles for drilling, Inch / metric change
NC Specification
All specifications are subject to change without prior notice. This product is an export control item subject to the foreign exchange and foreign trade act. Thus, before exporting this product, or taking it overseas, contact your CITIZEN machine dealer. Please inform your CITIZEN machine dealer in advance of your intention to re-sell, export or relocate this products. For the avoidance of doubt products includes whole or part, replica or copy, technologies and software. In the event of export, proof of approval to export by government or regulatory authority must be evidenced to CITIZEN. You can operate the machines after the confirmation of CITIZEN.CITIZEN is a registered trademark of Citizen Holdings Co., Japan.
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