SPECIAL DESIGNED BORING ARBOR
There exist various kinds of boring applications which cannot be managed using standard boring arbors. NIKKEN has great experience of special boring applications, utilizing the double contact shoulder support ZMAC-V boring heads. NIKKEN can also design and manufacture special boring arbors to suit your special applications.
For Overturning
Base Arbor for Special Boring Head
M10×8
H 1
L
ZMAC-V Head
H 2
45°
φC 1 φD 1
φC 2
φC 3
RAA
Counter Balance
TAPER No.40 No.50
Code No.
D 1
L H 1
H 2
C 1
C 2
C 3
Weight (kg)
For U Axis Boring Arbor
BT40-RAA32- 60
60
15
61
2.5
(IT40)
12
BT50-RAA32- 60 -120 -180 (IT50)
32 h7
7
5 9
102
82
60 120 180
98
20
15.5
★ The Base Holder with long gauge length is available on demand. ★ High Pressure Centre Through Tool Coolant Type is available on demand.
★ The dimension with ( ) is for IT40 and IT50 . ★ For BT40, φ D 1 =22mm is also available.
For Simultaneous machining for rough, finish and chamfer. Multi Stage Boring Arbor
DRILLING OPERATION by COMBAT DRILL
L/D = 3 , 4 times
“Rationalization is Study of Drilling.” which is our Slogan for developing NIKKEN COMBAT DRILL . P.309 Please try it. Pilot Drill and 3-Phases Heat Treatment significantly improves Cutting Condition, Secure Drilling and Tool Life.
φ 16 ～ 80
Please specify the boring dia., depth, and necessary length from the gauge line. For stepped hole boring with restricted concentricity.
Extra long size (Special Made)
Ultra Long Size Boring Bar
For Extreme Deep Hole Boring Operation, please study the Machine with NC5 Spindle P.213 or 3LOCK Spindle P.153. In case of BT/IT spindle, we recommend ZMAC -V type Head for these applications.
Please specify each boring dia., depth, and necessary length from the gauge line. For decreasing the number of A.T.C with one arbor for two different size of the bores.
486mm
Shank Arbor Dia. = φ 50mm
Boring dia. = φ 55mm
Photo shows Ultra Long size Boring Arbor with NC5 Shank.
For large bore
Pull Stud Power Clamp Mechanism
Spindle
For small bore
Bearing
Photo shows Multi Stage Boring Arbor with NC5 Shank.
1 ／ 10 Short Taper
The above are just samples. Pre-Balanced type Boring Arbor for High Speed Application and Aluminium Body Head are also available. Please contact with us about your special boring applications.
Flange Contact
Unique Construction : Consist-ing of a Slotted Taper Cone which is Pre-Loaded by a Disk Spring to increase its vibratio-nal dampening effect whilst ad-justing minute gaugeline errors, completely.
E ･ H ･ MERRITT ’ s Theory Chattering Stability=
Drive Key
Static Stiffness × Dampening Ratio Thus, the advantage of NC5 TOOLING SYSTEM is clearly demonstrated.
82
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