| General-Purpose Tooth | Balanced point, moderate material thickness, and standard penetration profile. | General excavation, trenching, loading, and loose overburden removal. | Soft to medium soil, clay, sand, gravel, and mixed earth. | Good balance of penetration, wear life, productivity, and cost. | May wear quickly in highly abrasive rock or continuous impact work. | Choose when the machine handles varied materials and no single soil condition dominates. | Verify dimensional compatibility, adapter fit, heat treatment, and consistent tooth weight. |
| Penetration Tooth | Long, narrow, pointed profile designed to concentrate digging force at the tip. | Hard clay excavation, compacted soil, trenching, and frost-affected ground. | Dense soil and moderately compacted materials with limited rock content. | Excellent initial penetration and reduced digging resistance. | Smaller cross-section can wear or break faster under severe abrasion or side loading. | Select based on material hardness, required breakout force, and expected impact level. | Check tip hardness, shank strength, dimensional accuracy, and resistance to tip deformation. |
| Rock Chisel Tooth | Reinforced, chisel-shaped point with a strong central nose for impact penetration. | Quarrying, rock excavation, demolition, and digging fractured rock. | Fractured rock, caliche, cemented gravel, and other highly compacted materials. | Strong penetration under impact and improved resistance to tip damage. | Higher digging resistance in soft soil and potentially faster wear on abrasive rock faces. | Use when impact loads are high and the work requires a durable, reinforced point. | Confirm alloy composition, hardness gradient, crack-free casting or forging, and impact testing. |
| Abrasion-Resistant Tooth | Thicker wear zones and increased metal mass around the nose and cutting surfaces. | Handling abrasive sand, quartz-rich soil, gravel, slag, and mineral-bearing material. | Highly abrasive materials where tooth wear is the main operating cost. | Longer service life and fewer tooth changes in abrasive conditions. | Usually offers less penetration than a narrow, sharp-profile tooth. | Prioritize wear metal, hardness, and cost per operating hour rather than lowest purchase price. | Request hardness data, wear-test results, material certificates, and traceable batch inspection. |
| Heavy-Duty Tooth | Heavy cross-section, reinforced nose, and additional material in high-stress areas. | Heavy excavation, quarry loading, large-scale earthmoving, and severe-duty digging. | Hard ground, mixed rock, compacted overburden, and high-impact applications. | High structural strength and improved resistance to breakage and impact. | Greater weight and digging resistance can reduce efficiency in soft materials. | Match tooth mass and strength to machine size, bucket capacity, and hydraulic breakout force. | Evaluate fatigue resistance, dimensional control, heat treatment, and compatibility with the adapter system. |
| Tiger or Twin-Tiger Tooth | Distinctive pointed or twin-point profile intended to combine penetration with wear coverage. | General excavation, abrasive soil, gravel, and mixed ground conditions. | Medium to moderately hard ground with a combination of penetration and abrasion. | Good penetration with a broader working surface than a very narrow point. | Performance varies significantly with profile and alloy quality; not ideal for every rock application. | Compare actual tooth geometry, wear pattern, machine load, and expected digging cycle. | Check profile consistency, nose alignment, locking fit, and performance references for similar machines. |
| Flare or Wide-Cutting Tooth | Wider cutting edge that increases the bucket's effective working width. | Trenching, grading, soft soil excavation, ditch cleaning, and material spreading. | Soft soil, loose sand, topsoil, and lightly compacted ground. | Produces a wider cut and can improve bucket fill in cohesive or loose material. | Lower penetration and greater exposure to bending or edge wear in hard ground. | Choose when cut width and bucket capacity are more important than deep penetration. | Confirm edge straightness, tooth-tooth alignment, wear pattern, and resistance to bending. |
| Long-Life or Clad Tooth | Wear-resistant alloy or additional hard-facing material applied to high-wear areas. | Continuous loading, abrasive mining material, recycled aggregate, and long production cycles. | Highly abrasive materials with limited need for frequent tooth changes. | Can extend service intervals when the hard-facing process is properly controlled. | Higher initial cost and possible brittleness if the hardness is excessive or poorly distributed. | Compare total operating cost, wear rate, downtime, and tooth replacement labor. | Ask for hard-facing process details, hardness range, bonding quality, and wear-test documentation. |
| Side-Cutter Tooth | Designed for the outer bucket edges to protect corners and improve side penetration. | Trenching, wall trimming, side-wall excavation, and bucket edge protection. | Soft to hard soil depending on the side-cutter grade and profile. | Protects bucket corners and helps maintain bucket width and digging geometry. | Not a replacement for center teeth; incorrect installation can create uneven loading. | Match left and right configurations, bucket side profile, and required cutting width. | Inspect mounting accuracy, corner coverage, locking system, and fit-up with adjacent teeth. |
| Adapter and Locking System | Bucket-tooth support system using a weld-on or bolt-on adapter with a retaining pin or lock. | All bucket-tooth systems; determines tooth retention, replacement speed, and load transfer. | Must be selected according to machine size, bucket design, and operating severity. | Correct matching improves safety, tooth life, and maintenance efficiency. | Incorrect fit can cause movement, premature wear, tooth loss, or adapter damage. | Confirm nose geometry, pin orientation, adapter size, bucket lip thickness, and locking method. | Require fit drawings, tolerance data, lock material information, and replacement-part availability. |