BALANCE-CUT BORING ARBOR (RAC-E)
Example of 2 Stepped Balance Cut Double Cutting Capability 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. Please use RAC-K for through hole boring. P.65, P.66
Approx. double removal of below cutting condition is possible by -0.3 Cartridge. P.68
0.3mm
P.60
Boring Range D
Boring Depth M
Cupling Dia Q
Shank Code No.
Spacer Code No.
Weight (kg)
Fig
TAPER Code No.
C
C 1
Tip No.
Head Code No.
BT50-RAC025-150E -180E -195E -RAC032-180E (IT50)
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
67 105 112 77 110 122 97 130 142 157 117 182 177 205 235 265 225 290 325
1
25 ～ 32
12-RAC 25- 55E
CC07-C
12
24
44
2
SP12-12-45
1 2
32 ～ 45
16-RAC 32- 55E
CC08-C
16
31
50
-210E -225E
SP16-16-45
-Q20-110 -Q20-125
-RAC043-180E
1
-240E -195E -225E
43 ～ 55
No.50
20-RAC 43- 70E
20
40
60
SP20-20-45 SP20-20-60
2
-Q20-110
-RAC053-210E -240E
-Q26-140 -Q26-170N -Q26-140 -Q34-170 -Q34-200 -Q34-170 -Q42-125 -Q42-190 -Q42-225A
1
53 ～ 70
26-RAC 53- 70E
26
50
65
CC12-C
-270E
2
SP26-26-60̶̶̶̶
-315E -RAC100-225E -RAC070-255E -285E
1
70 ～ 100
34
64
80
34-RAC 70- 85E
10.9 12.5 15.2 16.5
2
SP34-34-60̶̶
1 2
100 ～ 130
42-RAC100-100E
-290E -325E
42
83
83
★ “C” grade (Coated) inserts are supplied as standard with the head.
★ Code No. of RAC25 and RAC32 with CC inserts are changed to RAC25E and RAC32E. e.g. BT50-RAC25-150 → BT50-RAC25-150E 12-RAC25- 55 → 12-RAC25- 55E
P.60 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-RAC53-210E-C ★ BT50-RAC100-375E, 425E and 475E are also available. P.89 for base holder, P.90 for spacer and
Insert tip for RAC-E
●： best ●： good
● ● ●
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. CC12-C8 (AC630M)
Material
●
Coated Carbide M
Coated Carbide K
C
Code No. Nose R Material Grade
AC630M
AC410K
Dimension
Applicable Arbor
3.18 7 °
CC07- ○ 4 CC07- ○ 8 CC08- ○ 4 CC08- ○ 8 CC12- ○ 4 CC12- ○ 8
● ● ● ● ● ●
● ● ● ● ● ●
0.4
RAC25E
φ 3.4
7.94
0.8
CCMT0803 ○ L
8.0
3.97 7 °
0.4
RAC32E
φ 4.4
9.525
0.8
CCMT09T3 ○ N
9.7
4.76 7 °
0.4
RAC43E - RAC530E
φ 5.5
12.7
0.8
CCMT1204 ○ N
12.9
★ Minimum order quantity : 10pcs.
60
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