BALANCE-CUT BORING ARBOR (RAC-K)
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
P.66
Boring Range D
Boring Depth M
Cupling Dia Q
Weight (kg)
Shank Code No.
Spacer Code No.
Code No.
TAPER
Fig
C
C 1
Tip No.
Head Code No.
BT50-RAC 25-150K -180K -195K -RAC 32-180K (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- 55K
12
24
44
SP12-12-45
2
SC09
1 2
32 ～ 45
16-RAC 32- 55K
16
31
50
-210K -225K
SP16-16-45
-Q20-110 -Q20-125
-RAC 43-180K
1
-240K -195K -225K
43 ～ 55
20-RAC 43- 70K
20
40
60
SP20-20-45 SP20-20-60
2
-Q20-110
No.50
-RAC 53-210K -240K
-Q26-140 -Q26-170N -Q26-140 -Q34-170 -Q34-200 -Q34-170 -Q42-125 -Q42-190 -Q42-225A
1
53 ～ 70
26-RAC 53- 70K
26
50
65
SC12
-270K
SP26-26-60̶̶̶̶
2
-315K -RAC100-225K -RAC 70-255K -285K
1
70 ～ 100
34
64
80
34-RAC 70- 85K
SP34-34-60̶̶
10.9 12.5 15.2 16.5
2
1 2
100 ～ 130
42-RAC100-100K
-290K -325K
42
83
83
★ “C” grade (Coated) inserts are supplied as standard with the head.
P.66 Please refer
P.106 for cutting condition.
★ Please refer
P.89 for base holder, P.67 for head. ★ For centre through coolant type, please add “ -C ” at the end of Code No. e.g. BT50-RAC53-210K-C ★ BT50-RAC100-375K, 425K and 475K are also available. P.90 for spacer and
Insert tip for RAC-K
● : 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. SC12-C8 (AC630M)
Material
●
Coated Carbide M
Coated Carbide K
C
Code No. Nose R Material Grade
AC630M
AC410K
Dimension
Applicable Arbor
2.38
7 °
RAC25K, RAC32K
SC09- ○ 4 0.4
●
●
φ 3.4
7.94
SCMT070204N
4.76
7 °
SC12- ○ 8 0.8
●
●
RAC43K-RAC100K
φ 5.5
12.7
SCMT120408N
★ Minimum order quantity : 10pcs.
66
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