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  • 先行刀
  • 先行刀
  • 先行刀
  • 先行刀

TBM Forward Cutter

TBM Cutters for Soft Ground In TBM Cutters and accessories

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  • According to different geological condition design the different shape and choose the most suitable tungsten carbides, in order to make sure the cutters can deal with various working conditions, no matter the silty sand or the sandy gravel, our mission is to reduce the replacing frequency and improve work efficiency.
     
    The Features for the TBM Soft Ground Cutters:
    • Ceratizit Carbide Inserts
    • Heat Treated Bodies 
    • Hard Facing for Wear Resistance 
    • Silver Brazing 
    • Individually Customizable
     
  •   The Material for the TBM Soft Ground Cutters:

    Carbide teeth: we only use the Chinese well-known CB-CERATIZIT Tungsten Carbide tips, according to the geological working condition to choose the alloy grades, to make sure the alloy can suit for the different geological working conditions and have great performance.
    Steel Body: We choose the Chinese Large and Famous steel making plant high quality alloy structure steel 42CrMo,that have the following mechanical property:
    • Strength of extension : 1080 Mpa
    • Yield point:930 Mpa
    • Percentage elongation of fracture:12%
    • Percentage reduction of area:45%
    • Impact absorbing energy:63J
           The hardness after heat treatment is HRC 40±3,it has a pretty high wear resistance and toughness ,laid a solid foundation for the long service lift of the cutters.
    Welding Stick for hard facing: Choose the high wear resistance welding stick, the surface hardness of the welding cladding can reach to HRC55~60, ensure the hard facing can protect the cutter body won’t be worn and prolong the cutter’s service life.
    Welding Material for carbide teeth: Choose the Silver base brazing technology, the weld strength can reach to 260Mpa, to ensure the carbide teeth not falling off the cutter body.
     
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