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BALANCE CUT BORING BAR
from NIKKEN
25～580 Scram Type Cartridge Power & Smooth Boring with 250％ Productivity
Double Cutting Capability
From φ25～580mm, all Balance Cut Boring Bars execute boring in 2 Carbide Inserts. One side cutting will not occur, and vibration is absorbed each other. The faster the feed rate (0.2～0.4mm/rev.) , the better swarf ejection. Ideal for Rough and Medium Boring.
2 Stepped Balance Cut
Approx. double removal of standard cutting condition is possible by -0.3mm Cartridge.
Stepped Boring
Power of Scram Type Cartridge
Cutting force is supported by the shoulders of both cartridges. This is the secret of heavy and powerful boring even at the intermittent bore.
Cutting Force
A
Perfect Contact
Precision Ground Serration
High Precision Serration is the base of high accurate performance of BALANCE CUT Boring Bar.
Even strong cutting force is accepted by High Precision
Serration, resulting in smooth boring without micro vibration.
All slides are finished by precision grinding. Even micro adjustment can be done smoothly as you desire.
Precision Ground = Basic Serration
BCB-W P.80
Various Cartridges & Inserts P.69
Good Chip Ejection ensures no trouble Heavy Boring. Standard carbide insert is suitable both for Steel and Cast Iron. Besides, optional cartridges for steel, for Aluminium, through hole or multi-sheets are available.
Cutting Speed ………… 150m/min Feed Rate ……………… 0.4～0.6mm/rev Stock Removal ………… 6～10mm(on dia.) Boring Dia ……………… φ60mm Material ………………… SNCM420 (Ni, Cr, Mo Alloy Steel)
RAC-E RAC-A RAC-K
High Pressure Coolant Through Tool
Coolant Nozzle
