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萬恒液壓油缸樣本下載載

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Raise Boring Cutter size from 7" to 19"

1. ETERNAL company specialize on manufacturing raise boring cutter, which is applicated to bore all kinds of tunnel and shaft. In the past years, RBM cutter has been exported to many countries, such ash South Africa, Brazil, Chile, Mexico, Russian, Vietnam, Korea etc, It could be installed on the machine of Sandvik, Atlas copco, Robbins, Herrenknecht etc.


2. Size and technical specification

  Size range: 7”-19”

  Cutter row: 3 rown, 4 row, 5 row

  Cutter body choose 4330V (4330V MOD) forging material

  Button choose tungsten carbide  

  Choose excellent tapered roller bearing

  Carry out torque test on each cutter


3.  Material chemical specification :

C: 0.28 Min./0.37 Max.

Mn: 0.45Min./0.65Max.

Si: 0.1 Min./0.3 Max.

Ni: 2 Min./3 Max.

Cr: 0.8 Min./1.1 Max.

Mo: 0.4 Min./0.65 Max.

V: 0.05 Min./0.15 Max.


4.  Mechanical property :

Tensile strength : min 1033MPA  , Yield strength : 964MPA 

Impact value : min 90J 

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