INDUSTRY COMPONENT

Cutting Teeth/Bits

Cutting teeth/bits are replaceable components on digging assemblies that perform material removal through shearing, crushing, or abrasion.

Component Specifications

Definition
Cutting teeth and bits are engineered components mounted on the cutting edges of digging equipment such as excavator buckets, trenchers, and mining machinery. They serve as the primary interface for penetrating and fragmenting soil, rock, or other materials through mechanical force. These components are designed to withstand extreme abrasion, impact loads, and cyclic stresses while maintaining cutting efficiency. Their geometry, material composition, and mounting systems are optimized for specific applications ranging from soft soil excavation to hard rock mining.
Working Principle
Cutting teeth/bits operate on mechanical fragmentation principles. When the digging assembly engages with material, force is concentrated at the tooth tip, creating high-pressure zones that exceed the material's compressive or shear strength. This causes localized failure through cracking, chipping, or plastic deformation. The tooth geometry directs forces efficiently while minimizing energy consumption. Some designs incorporate self-sharpening features through controlled wear patterns or multi-material construction.
Materials
High-alloy steel (typically 400-500 HB hardness), tungsten carbide inserts (1400-1600 HV), boron steel, martensitic steels with chromium and molybdenum alloys. Surface treatments include hardfacing with chromium carbide or tungsten carbide composites.
Technical Parameters
  • Weight 2-25 kg
  • Hardness 400-500 HB (steel), 1400-1600 HV (carbide)
  • Shank Type Pin-on, wedge lock, or threaded
  • Service Life 200-800 operating hours depending on material
  • Cutting Width 50-200 mm
  • Mounting Torque 300-800 Nm for threaded systems
Standards
ISO 9001, DIN 22261, ISO 13333

Industry Taxonomies & Aliases

Commonly used trade names and technical identifiers for Cutting Teeth/Bits.

Parent Products

This component is used in the following industrial products

Engineering Analysis

Risks & Mitigation
  • Premature wear from abrasive materials
  • Tooth loss due to improper mounting
  • Fatigue failure from cyclic loading
  • Reduced efficiency from worn geometry
FMEA Triads
Trigger: Insufficient hardness for application material
Failure: Rapid wear and reduced service life
Mitigation: Material testing and proper grade selection based on abrasiveness index
Trigger: Improper mounting torque or pin wear
Failure: Tooth detachment during operation
Mitigation: Regular torque checks and pin replacement schedules
Trigger: Impact loading beyond design limits
Failure: Fracture or catastrophic failure
Mitigation: Operational training and load monitoring systems

Industrial Ecosystem

Compatible With

Interchangeable Parts

Compliance & Inspection

Tolerance
±0.5 mm on critical dimensions, ±1° on angle specifications
Test Method
ASTM G65 for abrasion resistance, ISO 148-1 for impact testing, dimensional verification per ISO 2768-m

Buyer Feedback

★★★★☆ 4.9 / 5.0 (12 reviews)

"Standard OEM quality for Machinery and Equipment Manufacturing applications. The Cutting Teeth/Bits arrived with full certification."

"Great transparency on the Cutting Teeth/Bits components. Essential for our Machinery and Equipment Manufacturing supply chain."

"The Cutting Teeth/Bits we sourced perfectly fits our Machinery and Equipment Manufacturing production line requirements."

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Frequently Asked Questions

What is the difference between cutting teeth and cutting bits?

Cutting teeth typically refer to larger, individually mounted components on excavator buckets, while bits are smaller, often used in arrays on trenchers or road milling machines. Both serve similar fragmentation functions but differ in scale and mounting systems.

How often should cutting teeth be replaced?

Replacement intervals depend on material hardness, operating conditions, and tooth design. Typically, teeth in abrasive environments require replacement every 200-400 hours, while less demanding applications may extend to 800 hours. Regular inspection for wear beyond 30% of original length is recommended.

Can cutting teeth be reconditioned or rebuilt?

Yes, many cutting teeth can be rebuilt through hardfacing processes that apply wear-resistant alloys to worn surfaces. This is cost-effective when the base structure remains intact, typically extending service life by 60-80% of original.

Can I contact factories directly?

Yes, each factory profile provides direct contact information.

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