Cutter Teeth/Wheels: Shank Diameter 20-45 mm, Weight 0.5-3.5 kg

Component Specifications

Definition

Cutter teeth, also known as cutter wheels or cutting picks, are hardened, replaceable components mounted on digging chains or rotating cutter wheels in excavation machinery. They serve as the primary contact points that penetrate, cut, and break apart materials like soil, rock, coal, or asphalt through mechanical force. Designed for high wear resistance and impact strength, they come in various shapes (conical, radial, pointed) and attachment systems (threaded, block-mounted, quick-change) to optimize performance for specific materials and operating conditions.

Working Principle

Cutter teeth/wheels operate on the principle of concentrated force application. As the digging chain or cutter wheel rotates or moves, the teeth penetrate the material surface using their hardened tips. The mechanical energy from the machine is transferred through the tooth structure, creating stress concentrations that fracture the material. Their geometry directs cutting forces efficiently while minimizing drag, and many designs include self-sharpening features where wear occurs preferentially on certain surfaces to maintain cutting effectiveness.

Materials

High-alloy steel (e.g., 42CrMo4), tungsten carbide-tipped (WCT), boron steel, or through-hardened steel with surface treatments like induction hardening (HRC 55-62) or carbide overlays. Premium versions use cemented carbide inserts brazed onto steel bodies for extreme abrasion resistance.

Technical Parameters

Parameter	Typical range	Notes & selection driver
Weight	0.5-3.5 kg
Hardness	HRC 55-62 (tip), HRC 40-45 (body)
Tooth Type	Conical, Radial, Pointed, Flat
Overall Length	80-200 mm
Shank Diameter	20-45 mm
Mounting System	Threaded, Block, Quick-Change, Wedge

Ranges are indicative industry figures for RFQ preparation, not a supplier commitment. Confirm every value and standard with the legal manufacturer before ordering.

Standards

DIN 22258, ISO 13333

Parent Products

This component is used in the following industrial products

Digging Chain/Cutter Wheel

A combined digging and cutting component used in excavation machinery to break up and remove soil or rock material.

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Engineering Analysis

Risks & Mitigation

Premature wear from abrasive materials
Tooth breakage due to impact with hidden obstacles
Improper installation causing ejection
Compatibility issues with holder systems
Reduced efficiency from worn teeth increasing operational costs

FMEA Triads

Trigger: Excessive tip wear from highly abrasive materials
Failure: Reduced cutting efficiency, increased energy consumption
Mitigation: Use tungsten carbide-tipped teeth, implement regular rotation/replacement schedules, optimize cutting parameters

Trigger: Impact fracture from hitting buried rocks or metal
Failure: Tooth breakage, potential damage to holder/chain
Mitigation: Install shock-absorbing holders, use impact-resistant steel grades, implement ground scanning where possible

Industrial Ecosystem

Compatible With

Typical Suppliers & Equivalents

Compliance & Inspection

Tolerance

Shank diameter tolerance: ±0.1 mm, Hardness tolerance: ±2 HRC, Dimensional tolerances per DIN 22258

Test Method

Hardness testing (Rockwell C), impact testing (Charpy), metallographic analysis, wear testing per ASTM G65

Procurement Evaluation Criteria

A practical evidence checklist for RFQ preparation and supplier evaluation.

Technical documentation

Request current drawings, revision history, and a signed specification sheet.

Manufacturing capability

Verify equipment lists, process limits, capacity, and representative production evidence.

Inspection readiness

Confirm test methods, calibrated equipment, sampling plans, and traceable reports.

Supplier transparency

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Manufacturers of Cutter Teeth/Wheels

Manufacturer profiles associated with Cutter Teeth/Wheels.

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Compiled and source-reviewed by the CNFX editorial team. Each manufacturer above links to the page on that company's own website where the product is listed, with the date we checked it. How we source and review

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Frequently Asked Questions

How often should cutter teeth be replaced?

Replacement frequency depends on material abrasiveness and operating hours. In highly abrasive conditions (e.g., sandstone), teeth may last 50-100 hours; in softer materials, 200-500 hours. Monitor for tip wear exceeding 30% of original length or broken tips.

What are the signs of worn cutter teeth?

Reduced excavation rate, increased fuel consumption, uneven cutting patterns, excessive vibration, and visible wear/flattening of carbide tips. Worn teeth cause inefficient material fragmentation and higher stress on machinery.

Data Basis

Editorial classification, named public sources where available, and source-reviewed manufacturer records. See the editorial policy.

Preliminary Technical Classification

This page supports structured research, RFQ preparation, and supplier evaluation. It does not replace buyer-led supplier qualification, standards review, or technical approval.

Cutter Teeth/Wheels