BALANCE-CUT BORING ARBOR (RAC-A)
Balance cut boring bar executes boring in 2 cartridge inserts absorbing the vibration each other. The faster the feed rate, the better swarf ejection. This is Ideal for rough and medium boring. Double Cutting Capability
Example of 2 Stepped Balance Cut
Approx. double removal of below cutting condition is possible by -0.3 Cartridge. P.68
0.3mm
P.64
Boring Range D
Boring Depth M
Cupling Dia Q
Shank Code No.
Spacer Code No.
Weight (kg)
TAPER Code No.
Fig
C
C 1
Tip No.
Head Code No.
BT50-RAC 25-150A -180A -195A -RAC 32-180A (IT50)
67 105 112 77 110 122 97 130 142 157 117 182 177 205 235 265 225 290 325
BT50-Q12- 95 -Q12-125 -Q12- 95 -Q16-125N -Q16-155 -Q16-125N
4.7 4.9 4.8 5.4 5.6 5.6 5.7 5.8 6.1 6.2 6.9 7.0 7.6 9.5 9.9
1
25 ～ 32
12-RAC 25- 55A
12
24
44
SP12-12-45
2
AEG12
1 2
32 ～ 45
16-RAC 32- 55A
16
31
50
-210A -225A
SP16-16-45
-Q20-110 -Q20-125
-RAC 43-180A
1
-240A -195A -225A
43 ～ 55
No.50
20-RAC 43- 70A
20
40
60
SP20-20-45 SP20-20-60
2
-Q20-110
-RAC 53-210A -240A
-Q26-140 -Q26-170N -Q26-140 -Q34-170 -Q34-200 -Q34-170 -Q42-125 -Q42-190 -Q42-225A
1
53 ～ 70
26-RAC 53- 70A
26
50
65
AEG16
-270A
SP26-26-60̶̶̶̶
2
-315A -RAC100-225A -RAC 70-255A -285A
1
70 ～ 100
34
64
80
34-RAC 70- 85A
10.9 12.5 15.2 16.5
SP34-34-60̶̶
2
1 2
100 ～ 130
42-RAC100-100A
-290A -325A
42
83
83
★ “F” grade inserts are supplied as standard with the head.
P.64 Please refer
P.106 for cutting condition.
★ Please refer P.67 for head. ★ For centre through coolant type, please add “-C” at the end of Code No. e.g. BT50-RAC53-210A-C ★ BT50-RAC100-375A, 425A and 475A are also available. P.89 for base holder, P.90 for spacer and
Insert tip for RAC-A
Steel Stainless Steel Cast Iron Aluminium
Please add the grade indication into ○ , and add the insert tip material indication at the end off the Code No. e.g. AEG16-F2 (KW10)
Material
Coated Carbide K ●
F
Code No. Nose R Material Grade
KW10
Dimension
Applicable Arbor
● ● ● ● ● ●
AEG12- ○ 1 AEG12- ○ 2 AEG12- ○ 4 AEG16- ○ 1 AEG16- ○ 2 AEG16- ○ 4
0.1 0.2 0.4 0.1 0.2 0.4
9.5
3.18
20 °
RAC25A, RAC32A
φ 3.4
7.938
80 °
(AEGT090304L)
15.875
3.18
20 °
RAC43A-RAC530A
φ 4.4
9.525
80 °
(AEGT150304L)
★ Minimum order quantity : 10pcs.
64
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