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1. ETERNAL company specialize on manufacturing raise boring reamer head from 660mm to 6000mm, which is applicated to bore all kinds of tunnel and shaft . In the past years, RBM reamer heads have 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 Copoc etc.
2. Size and technical specification
3. Reamer head structure
ETERNAL reamer head could be installed SANDVIK raise boring machine , Atlas copco raise boring machine .
According to client requirments : integrated structure
assembly structure , which could be added with extra wings in future
4. Product features
4.1 Reamer body choose high strength steel plate to weld
4.2 Top plate and bottom plate choose wearing steel plate NM400, NM500, its surface hardness could reach HRC40-50
4.3 Choose suitable cutter type according to mine’s work condition
5 .Wearing plate NM400 chemical specification :
C: 0.15-0.25 % Si:0.2-0.6% Mn :1.0-1.6%
Cr:0.20-0.60% Mo:0.15-0.30% Nb :0.015-0.045
V:0.015-0.12% Ti :0.02-0.08%
Surface hardness HRC38-42
This material not only has high surface hardness , but also good welding property .
It is very suitable for reamer top and bottom plate
