Equipment
- Roadheaders and continuous miners
- Coal shearers and cutting drums
- TBM and shield machine cutterheads
- Heading and excavation equipment
MINING, ROADHEADERS, TBM & SHIELD MACHINES
Mining & Tunneling Carbide Tools
Reduce unplanned tool changes by matching the carbide, steel body, geometry and connection to the rock mass, impact level and cutting system.
APPLICATION FIT
Where this solution applies
Operating tasks
- Coal and rock cutting
- Mixed-ground tunneling
- Face excavation and profiling
- Wear protection for cutter systems
Buying & engineering roles
- Mine maintenance teams
- TBM tool managers
- OEM engineering teams
- Procurement and MRO buyers
WORKING CONDITIONS
Inputs that control grade and geometry
A useful recommendation starts with the load, environment and mating system. Include measured data when available and describe field conditions when it is not.
- Rock or coal strength, quartz content and abrasivity
- Mixed ground, cobbles, water inflow and soil conditioning
- Impact load, cutting speed and pick rotation
- Dust, moisture, temperature and planned change interval
COMMON FAILURE MODES
Diagnose the mechanism before changing material
- Rapid flank and tip wear
- Carbide chipping or fracture
- Insert pull-out and braze failure
- Steel-body washout or uneven drum wear
PRELIMINARY SELECTION MATRIX
Start with the wear pattern, then verify the mechanism
Use the visible symptom to prepare a useful engineering inquiry. Each cause and trial direction below is a hypothesis to verify against the machine, cutter position, formation and assembly—not a final grade recommendation.
| Observed pattern | Causes to verify | Information to submit | Preliminary trial direction |
|---|---|---|---|
| Rapid abrasive wear | High quartz or abrasivity; restricted pick rotation; cutting speed or attack condition; insufficient flushing or cooling. | Machine and tool model, rock or coal description, UCS or quartz data, cutter position, operating settings and close-up wear photographs. | Review a more wear-biased grade or profile together with rotation, support and operating conditions. |
| Chipping or fracture | Hard inclusions or boulder impact; insufficient carbide support; unsuitable attack angle; grade toughness or residual assembly stress. | Impact location, formation transitions, new and failed tool photographs, drawing, carbide support and current grade when known. | Check geometry and support first, then evaluate a tougher candidate in a controlled sample. |
| Carbide insert pull-out | Braze coverage or contamination; fit and seat condition; overheating; steel-body erosion or inadequate retention. | Seat and insert dimensions, braze specification, fracture-surface photographs, body condition, joining process and inspection method. | Resolve fit, joining and retention controls before deciding whether the carbide grade should change. |
| Uneven wear or body washout | Restricted rotation; holder wear or misalignment; cutter-position load; water, dust or material packing; body support or hardness. | Cutter-position map, holder play, rotation condition, adjacent-tool comparison, body-wear photographs and operating environment. | Restore rotation and support, then compare position-specific geometry, body protection and carbide balance. |
ANONYMOUS FIELD DIAGNOSIS
Insert loss traced to supporting steel-body wear
A customer reported carbide insert loss and supplied photographs of multiple worn cutting picks. Ruixin reviewed the visible wear pattern as a complete-tool problem rather than assuming that the carbide grade alone was responsible.
Customer symptom
The customer reported carbide inserts detaching during service and sent overview and close-up photographs for diagnosis.
Photo-based diagnosis
The visible wear pattern indicated that the steel body had worn back around the insert location. As supporting material was lost, the carbide could no longer remain adequately supported.
Corrective action
Ruixin advised changing to a more wear-resistant steel-body material and reviewing the body support and insert interface as one assembly.
Reported result
After the body-material change, the customer reported a normal wear pattern. Test hours, metres and a comparative service-life percentage were not recorded, so no quantified life claim is made.
Evidence scope
Anonymous field diagnosis based on customer-supplied photographs and follow-up feedback. The equipment model, operating material, steel grade codes, test quantity and post-use comparison photograph are still required for a controlled performance case.
Send Failure PhotosCOMPLETE TOOL + CARBIDE
Engineer the interfaces, not only the insert
Assemblies and components
- Roadheader and shearer picks
- TBM and shield cutter teeth
- Carbide inserts, buttons and protection blocks
- Steel bodies, brazed tools and ready-to-fit assemblies
Custom decisions
- Grade balance for impact versus abrasion
- Button, insert and tip geometry
- Interference, brazing and retention design
- Drawing- or sample-based reverse engineering
Capability note: complete assemblies are evaluated against the drawing, sample, production volume and available technical evidence. No field-life claim is made until a controlled trial is completed.
APPLICATION & WEAR ARCHIVE
Real equipment, tools and wear patterns for review
These authorized photographs document relevant equipment, cutting tools and observed wear. They provide application context for diagnosis and inquiry preparation; they are not presented as a traceable customer performance case or proof of service-life improvement.
TBM cutterhead application
Application context for cutterhead layout and tool-position discussion. Machine, geology and measured result are not identified.
Underground roadheader application
Roadheader application context for impact, dust, cutter position and tool-change discussion.
Conical cutting picks
Tool-family reference for geometry, body and joining review. Final dimensions remain drawing-specific.
Flattened cutting tip
Visible flattening can indicate abrasive wear; rotation, formation and heat still need verification.
Installed cutting tooth inspection
Installed-tool view that helps compare carbide wear with body, holder and neighboring-tool condition.
Uneven carbide-tip wear
Uneven wear should be checked against rotation, alignment, cutter position and material packing.
Cutting-tooth body washout
Body erosion around the carbide requires interface, support and operating-condition review before a grade change.
MATERIAL TEST SUMMARY
SK07CT third-party sample results and internal release controls
The values below summarize third-party testing of a submitted SK07CT sample for coal-cutting-pick carbide and the scope of two redacted internal finished-product inspection records. They support material traceability discussions; they do not certify a current order or predict field life.
Report identification
YW2026-065, issued 12 March 2026.
Sample scope
SK07CT cemented carbide for coal-cutting-pick applications.
Density and hardness
Density 14.75 g/cm³; hardness HRA 86.5.
Magnetic measurements
Cobalt magnetism 6.4%Co and 6.5%Co; coercive force 4.0 and 4.1 kA/m across two specimens.
Porosity and carbon
Porosity A04/B00; free carbon C00; no recorded macroscopic pores in the reported categories.
Microstructure
No η phase; average α-phase WC grain size 10.0 μm; β-phase distribution 1–3 μm.
Internal finished-product checks
Two redacted records dated 29 July and 4 August 2026 show sampled unit-weight and critical-dimension checks followed by batch release. Order, batch and personnel identifiers are withheld.
Results apply only to the submitted sample. The complete report can be requested from sales. Current-order specifications, inspection items and acceptance limits must be reconfirmed before production.
VERIFIED COMMERCIAL EVIDENCE
Published evidence for mining and tunneling tools
Ruixin publishes studio product evidence, an authorized application and wear archive, and a third-party summary for a submitted SK07CT sample. Together they support preliminary selection and traceability review; they are not presented as a measured customer performance case.
Carbide tunneling teeth and tip geometries
Ruixin studio product photograph of current tunneling-tooth carbide geometries. It is representative product evidence, not a roadheader or TBM installation.
Open source product →
Coal and roadheader pick carbide tips
Ruixin studio product photograph of published coal-cutting tip forms. Steel body, brazing and final assembly remain drawing-specific.
Open source product →Published grade range
The tunneling-tooth catalogue publishes grades from SS12C, SS16C and SS20C through coarse-grain SS16CB–SS20CB, SS18CC–SS20CC and SS15CT–SS16CTA, with HRA 85.5–90, TRS at least 2200–2900 MPa and grain size 2–8.5 μm.
View grade table →Drawing-based geometry
Published supply includes custom alloy selection and OEM tooth geometries. Tip profile, shank or cone interface, support and brazing surfaces are confirmed against the approved drawing or sample.
View custom scope →Sample and delivery scope
Published tunneling-tooth terms list 20–100 pieces per grade for sampling, normally 5–7 days, and typical bulk production from 500 pieces in 3–5 weeks, subject to geometry and order review.
View order terms →Inspection documentation
Published product terms list shipment material test records covering hardness, density and grain structure. Additional dimensional or third-party inspection must be agreed before production.
View inspection scope →Evidence status
Available evidence now includes real application and wear photographs plus sample-level material testing. Still required is a traceable project case tied to machine, formation, cutter position, approved assembly detail, baseline and measured field result. No field-life improvement or customer performance result is claimed.
Submit approved evidence or project detailsRECOMMENDED PRODUCT FAMILIES
Use product pages for grades, dimensions and standard forms
These families are starting points. Final grade, size, tolerance and assembly scope are confirmed from working conditions.
CUSTOM DEVELOPMENT
A practical path from evidence to production
1
Drawing or sample review
2
Working-condition and failure analysis
3
Grade, geometry and joining proposal
4
Sample manufacture and inspection
5
Field test, feedback and batch release
Material review
Carbide system, grain size and binder are selected against the application requirement.
Drawing control
Critical dimensions, interfaces and inspection scope are confirmed before sampling.
Sample testing
Trial quantities and field feedback establish evidence before scale-up.
Project documentation
Inspection and material documents are agreed according to project scope.
CORE TECHNICAL GUIDES
Selection and failure-analysis guides
TECHNICAL LIBRARY
Guides organized by engineering decision
Use these supporting articles for selection, failure diagnosis, operating review and purchasing preparation.
Selection
- Carbide Grade Selection for Shearer Picks in High-Impact Coal Seams
- Carbide Grade for Coal Seam Hardness: Shearer Pick Selection Guide
- Carbide Grade Selection for TBM Disc Cutters in Hard Rock
- Matching TBM Carbide Grade to Rock Hardness Using the Protodyakonov Coefficient
- Carbide Grade Selection for Roadheader Picks in Tunneling: Matching Toughness to Problematic Strata
- Carbide Grade Selection For Shield Machine In Metro Tunneling Mixed Ground
- TBM Cutter Carbide Grade for Mixed Ground and High Water Inflow: An Engineering Selection Framework
- Shearer Pick Carbide Grade: High Impact Vs High Abrasion Coal Seams
- Carbide Grade Selection For Shearer Drums In Hard Coal With High Quartz Content
- How To Match Carbide Grade To Coal Seam Hardness For Shearer Drums
- TBM Disc Cutter Carbide Inserts: Grade Selection for Hard Rock Tunneling
- How To Select Carbide Inserts For Tbm And Shield Machines: A Rock Formation Guide
- Chain Trencher Carbide Picks — Rock Trenching Grade Guide
Failure diagnosis
- What To Include In A Carbide RFQ: Rock Type, Machine Model, And Current Grade
- Carbide Grade for Shield Machine in Mixed Ground: Matching Toughness and Wear
- TBM Carbide Grade Selection for Mixed Ground: Soft Rock to Hard Rock
- Carbide Grade for Coal Seam Hardness: Matching Cobalt and Grain Size
- Carbide Grade for TBM in Mixed Ground: Soft Rock, Hard Rock, and Water Inflow
- Carbide Tips for Longwall Shearer Drums in High-Impact Coal Seams
- Carbide Tips for Longwall Shearer Drums: High-Impact Grade Selection
- Carbide Grade for TBM Disc Cutters in Mixed Ground: Matching Toughness and Wear
- Carbide Grade for TBM Disc Cutters in Hard Rock: Matching Formation Hardness
- Carbide Grade Selection by Failure Mode: Abrasion vs Impact in Mining Tools
- Shield Machine Carbide Tips For Mixed Ground Tunneling: Grade Selection Guide
- TBM Cutting Tool Carbide Grades: Matching Material to Formation Hardness
- TBM Carbide Grade Selection for Mixed Ground: Soft Soil to Hard Rock
- Why Carbide Coal Picks Fracture Prematurely — And How to Match the Grade
- Carbide Grade for TBM Disc Cutters in Hard Rock: Matching Toughness and Wear
- Continuous Miner Carbide Picks: Bord & Pillar Grade Guide
- TBM Carbide Cutter 3D Laser Wear Measurement Guide | Ruixin
- Geological Anomaly Carbide Pick Wear — Coal Grade | Ruixin
- Water Jet Suppression — Carbide Pick Wear Grade Selection
- Impact Fatigue in Carbide Mining Picks — Root Cause & Fix
- TBM Cutter Wear Prediction Model — UCS, CAI & Grade | Ruixin
- Carbide Coal Mining Pick Frictional Ignition Safety Guide
- TBM Muck Clogging & Carbide Cutter Secondary Wear | Ruixin
- Coal Dust Carbide Pick Abrasion: Prevention Guide | Ruixin
- Shearer Pick Carbide: Vibration Wear Guide | Ruixin
- Gas Drainage Carbide Grade Selection for Coal Mining|Ruixin
- Shearer Pick Wear at High Retreat Rate—Grade Guide | Ruixin
- TBM Carbide Cutter Karst Ground Wear — Grade Guide | Ruixin
- Shearer Drum Lacing Pattern & Carbide Wear Guide | Ruixin
- Slurry Shield TBM Carbide Grade Selection Guide — Ruixin
- Coal Shearer Pick Predictive Replacement Scheduling | Ruixin
- TBM Cutterhead Carbide Inspection Interval Guide | Ruixin
- TBM Carbide Cutter Wear Monitoring in Abrasive Rock | Ruixin
- TBM Cutter Carbide Grade Field Testing Guide | Ruixin
- Carbide Tip Failure Root Cause Diagnosis — Coal Mining
- Carbide Pick Replacement Cost Optimization Guide — Ruixin
- Carbide Wear Parts Installation Guide — Mining Crushers
- Pyrite Carbide Tip Wear in Coal Seams — FeS2 Guide | Ruixin
- EPB TBM Soil Conditioning — Foam & Carbide Grade Guide
- Carbide Pick Failure Analysis — Root Cause | Ruixin
- Pipe Jacking Carbide Grade Guide for Microtunneling | Ruixin
- Raise Boring Carbide Cutters Grade Selection for Hard Rock
- Surface Miner Carbide Picks: Wirtgen Grade Guide | Ruixin
- Carbide Corrosion in Acidic Mining | Ruixin Carbide
- Shield Machine Carbide Tips — Soft & Mixed Ground Guide
- Shearer Drum Carbide Replacement: Retip vs Replace | Ruixin
- TBM Cutter Carbide Failure: Chipping & Spalling | Ruixin
- Roadheader Picks Carbide Grade — SR8C vs SR10C | Ruixin
- Carbide Tips for Coal Mining — UCS Grade Selection | Ruixin
- Longwall Shearer Drum Carbide — Grade & Seam Optimization
- TBM Cutter Ring Maintenance — Carbide Inspection & Lifecycle
- Mixed-Face TBM Grade Selection — Soft/Hard Guide | Ruixin
- WC-Co vs Pure Tungsten: Mining & Drilling Guide | Ruixin
- Reduce Carbide Tool Consumption Mining — 5 Ways | Ruixin
- Coal Shearer Picks for Longwall Mining – SR8C/SR10C Carbide | Ruixin
- Cobalt Content Mining Picks — Wear vs. Impact Guide | Ruixin
- TBM Shield Cutter Grade Selection — UCS, CAI & Quartz Guide
- TBM Shield Disc Cutter Grade Hard Rock | WC-Co Guide — Ruixin
- TBM Disc Cutter Carbide Grade | Hard Rock Selection Guide — Ruixin
- Roadheader Carbide Grade Mixed Ground | Selection Guide — Ruixin
- Roadheader Picks Mixed Ground Grade | Carbide Comparison — Ruixin
- Selecting Tungsten Carbide Grades for Longwall Coal Shearer Picks
- Coal Shearer Pick Grade Comparison: YG8 vs YG13 | Ruixin
- TBM Shield Cutter Grade Selection | Ruixin Carbide
- Coal Shearer Pick Cobalt Content: Optimize Toughness | Ruixin
- Roadheader Picks Carbide Grade | Selection Guide — Ruixin Carbide
- Coal Shearer Picks Grade Selection | Ruixin Carbide
- Tungsten Carbide TBM Cutting Tools | Grade Guide — Ruixin
- How to Select Carbide Grade for Coal Mining: HRA, Grain Size, and Cobalt Content Explained
- Tungsten Carbide Roller Bits: Mining Applications Complete Guide
- Tungsten Carbide Wear Parts for Mining: Complete Guide
- Tungsten Carbide Mining Drill Bits: Complete Guide
Operation and maintenance
- Coal Seam Carbide Pick Wear — Water Injection Grade Guide
- Carbide Wear Liner for Mining Dump Trucks | Guide — Ruixin
- Conical vs Radial Carbide Picks for Coal Shearers — Ruixin
- Thin Seam Coal Mining Carbide Grade Selection Guide | Ruixin
- Coal Mining Carbide Picks for Sandstone Impact | Ruixin
- Coal Prep Plant Carbide Wear: Screens & Liners | Ruixin
- Carbide Rod Blanks for Mining: Grade & Spec Guide | Ruixin
- Carbide Rod Blanks Mining Tools — Grade Selection Guide | Ruixin
- Mining Drill Bits Market to Hit $2.42 Billion by 2030 as Carbide Demand Surges
Procurement and quality
- Custom Carbide Grade Formulation for Mining Tools: What to Specify in Your RFQ
- Forecasting Carbide Pick Costs for Coal Mining | Ruixin
- BMO: Tungsten Market Tighter Than Lithium 2021 With No Mine Pipeline to Fix It
- Almonty Restarts South Korea Tungsten Mine After 30 Years to Cut China Dependence
- cemented carbide – mining parts
- Tungsten Carbide Cutting Picks: Mining and Roadheader Applications Guide
FAQ
Questions engineering teams ask first
What information is needed to select a mining carbide grade?
Share the machine and tool model, rock or coal description, compressive strength when available, abrasivity or quartz content, current grade, failure photographs and the target change interval.
Can Ruixin supply a complete pick or only the carbide insert?
Projects can be evaluated for carbide-only supply or a complete assembly including the steel body and joining process. The final scope is confirmed against drawings, samples and operating conditions.
How are mixed-ground tunneling applications evaluated?
We review the expected ground transitions, cobbles or boulders, water and conditioning method, cutter position, impact pattern and the current wear or breakage mode before recommending a trial configuration.
ENGINEERING SUPPORT
Talk directly with engineering support
Share the equipment, material, current part and wear pattern so the recommendation starts with the real working condition.
QUICK FACTORY-PRICE CHECK
Receive an initial China factory-price reference
Country, email and one short description are enough to start. Your name, company, WhatsApp, drawings and exact specifications can be added later.
- We can start from the information you already have
- Initial response within 12 hours
- Contact details are used only to reply to this inquiry
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