Components for Demanding Underground Applications
FORMET supplies TBM cutting tools and wear parts for tunnel boring machines working in hard rock, mixed ground and soft ground: disc cutters and cutter rings, carbide cutting tools, rippers and scrapers, and replacement components for the cutterhead. Parts are matched to the machine interface and to the ground conditions reported for the drive.
FORMET supplies disc cutter configurations for hard-rock, mixed-ground and specialized tunnel boring applications. Cutter selection is based on machine interface, cutterhead position, rock characteristics, thrust, wear conditions and maintenance strategy.
- Single Disc Cutters
- Twin Disc Cutters
- Double Disc Cutters
- Center Disc Cutters
- Copy Disc Cutters
- Monoblock Disc Cutters
- Replaceable Cutter Assemblies
Tungsten carbide insert and carbide-based cutting tools provide concentrated wear resistance for abrasive tunneling, excavation and mining environments. FORMET can match insert geometry, body design and hard-facing strategy to the expected ground and operating conditions.
- TCI Cutting Tools
- Carbide-Inserted Cutters
- Carbide Chisels
- Excavation Picks
- Hard-Faced Tools
- Custom Carbide Wear Tools
Ripper and scraper tools are engineered to cut, loosen and direct excavated material across soft-ground and mixed-ground cutterheads. Application-specific geometry helps maintain effective engagement, material flow and replaceability under demanding underground conditions.
- Ripper Tools
- Center Rippers
- Scraper Tools
- Cutting Knives
- Excavation Tools
- Drag Bits
Cutter rings are selected around geology, load, wear behavior and the operating requirements of the cutter assembly. FORMET supports heavy-duty, replacement and application-specific ring configurations for tunneling programs.
- Standard Cutter Rings
- Heavy-Duty Cutter Rings
- Hard-Faced Rings
- Replacement Rings
- Monoblock Cutter Rings
- Project-Specific Cutter Components
FORMET manufactures replacement TBM components from drawings, samples and verified machine geometry when scheduled maintenance or urgent field demand requires reliable supply. Parts can be adapted to project-specific interfaces while maintaining dimensional and material requirements.
- Cutter Housings
- Mounting Blocks
- Retainers
- Shafts and Pins
- Replacement Brackets
- Cutterhead Hardware
Wear components protect critical cutterhead and material-handling areas exposed to impact, abrasion and continuous contact with excavated ground. FORMET supplies replaceable parts designed to support equipment uptime and practical field maintenance.
- Wear Plates
- Muck Buckets
- Cutting Knives
- Screw Conveyor Components
- Wear Blocks
- Precision-Machined Wear Parts
For obsolete, modified or project-specific machines, FORMET can develop custom TBM components when original parts are unavailable or no longer match the operating requirement. Engineering review can begin from a drawing, sample, scan, mating interface or defined performance need.
- Modified Cutter Assemblies
- Custom Tool Holders
- Project-Specific Rippers
- Replacement Cutter Bodies
- Special Wear Components
- Machine-Interface Adaptors
TBM Cutting Tools: Applications & Grades
Our tunneling tools can be supplied with the documentation site teams need: specifications, material data and packing lists matched to the order. Clear identification on every crate helps the maintenance crew find the right part quickly during a planned stop, without sorting through parts underground, where every hour of downtime is expensive.
- TBM DISC CUTTERS
- TCI & CARBIDE CUTTING TOOLS
- RIPPERS & SCRAPERS
- TBM SPARE & WEAR PARTS







