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Edge Disc Cutter
Ceramic

Edge Disc Cutter

Material: Mold Steel + H13, DC53, GSY, GLD
Cutter Type: Single/Double/Eccentric/Center (twin) disc cutter
Hub Feature: Removable / Monoblock
Useage:TBM shield machine accessory
Application: Tunneling of Diversion Tunnels, City Subway Tunnels, Railway Tunnels, Cable Tunnels, etc
Applicable brand: Herrenknecht, Wirth, Dcmag, Robbins, Jarva, Kawasaki, Mitsubishi, IHI, Lovat, STEC, CRCHI, CREG, etc
Size: 17inch-21inch or Customizable
Custom Design: Size, color, accessory can be customized

Description

Introduction of cemented carbide shield knife:

1. Using 99.95% high purity raw tungsten carbide powder.
2. It has high wear resistance and impact resistance.
3. High rock hardness and high impact load, use coarse particle WC, rock impact is small impact load is small use medium particle WC as raw material.
4. Shield machine tools according to the cutting principle, generally recognized that there are two types of hobbing and cutting knives (according to the different nature of the tunnel surrounding rock, different cutting purposes, these two types of tools can be further subdivided). The cutting principle of hobbing is mainly that the tool relies on extrusion to break the rock and is generally used for rock tunneling. When crossing loose strata, but there are large gravel (grain size greater than 400mm), and the content of a certain proportion, can also be used hobbing tool. In other cases where the geological conditions of the tunnel are complex and changeable, where rock (not too strong) and general soil (or clay or sand) are frequently interspersed, it is also possible to use hobbing tools, i.e. in a composite shield machine. The cutting principle of the cutting knife is mainly the shield machine forward at the same time, the tool with the cutter rotation on the excavation surface soil body to produce axial (along the tunnel forward direction) shear force and radial (cutter rotation tangential direction) cutting force, and constantly cut down the excavation in front of the soil body. Cutting knife is generally applicable to the grain size of less than 400mm sand and pebbles, sandy soil, clay and other loose body strata. The commonly used grades are YG8YG8C YG9C YG11C.

5. Can be customized according to customer samples or drawings.

 

 

TBM CUTTER RING

Material
Mold Steel + H13, DC53, GSY, GLD
Cutter Type
Single/Double/Eccentric/Center (twin) disc cutter
Hub Feature
Removable / Monoblock
Useage
TBM shield machine accessory
Application
Tunneling of Diversion Tunnels, City Subway Tunnels, Railway Tunnels, Cable Tunnels, etc
Applicable brand
Herrenknecht, Wirth, Dcmag, Robbins, Jarva, Kawasaki, Mitsubishi, IHI, Lovat, STEC, CRCHI, CREG, etc
Size
  17inch-21inch or Customizable
Custom Design
Size, color, accessory can be customized

 

Edge Disc Cutter Introduction 1

Edge Disc Cutter Introduction 1

Edge Disc Cutter Introduction 2

Edge Disc Cutter Introduction 2

Edge Disc Cutter Introduction 3

Edge Disc Cutter Introduction 3

 

Series

Use hardness Feature
H13 HRC56-59

HRC62-66

DC53

HRC60-63 Most cost-effective
GSY HRC61-64

Applicable to high performance models above 160 MPa

GLD

HRC62-66

Applicable to high performance models above 160 MPa

Edge Disc Cutter Introduction 4

Edge Disc Cutter Introduction 4

 

Material of cutter ring

H13, with hardness HRC56-59, ,C 0.47-0.52 Si 0.9-1.2 Mn 0.4-0.6 Cr 4.8-5.2 Mo 1.1-1.4 V 0.8-1.00 P 0.015 S 0.015  shrink fit with hub.
DC53,with hardness HRC60-63,C 0.9-1.1 Si 0.9-1.2 Mn 0.2-0.4 Cr 7.5-8.5 Mo 1.9-2.3 V 0.3-0.5 P 0.015 S 0.015.
GSY,with hardness HRC61-64,Ingredient confidentiality.
GLD,with hardness HRC62-66,C 0.68-0.78 Si 0.9-1.2 Mn 0.2-0.4 Cr 7.0-8.0 Mo 2.2-2.5 V 1.7-2.2 P 0.015 S 0.015.

 

According to the work condition, the cutter ring should features:

  1. High yield strength, to prevent deformation under high stress;
  2. High hardness, increase the abrasion resistance decrease the wear and tear; High impact ductility, prevent any fracture;
  3. High resistance to tempering, increase the heat endurance to guarantee the hardness under hot charging or rolling the rock;
  4. High processing property for hot working and cold workin
In order to meet the requirements of various geological applications, Litian can provide a series of cutter rings with different specifications and performances so that the cutters can give full play to their best performance. In order to meet the needs of different products, our company has conducted in-depth research on the material of the cutting ring and treated it with different strengths, so that the hardness of the cutting edge reaches HRC56-HRC66 and the life is increased by 30% ~ 50%.
Edge Disc Cutters

Edge Disc Cutters

Generally the cutter ring material in two types, totally abrasion-resistant steel and steel with tungsten carbide inserts. The cutting edge of roller disc cutter is desiged in different shape according to different hardness of rock.

 

Our Advantages

Our Advantages

Our Advantages

 

Main customers

Our Main customers

Our Main customers

 

Applications

Edge Disc Cutter Applications

Edge Disc Cutter Applications