An is the main working attachment fitted to the end of the excavator arm, used for digging, loading, carrying and grading soil, rock, gravel and construction materials.
Main Types
Standard Digging Bucket
General-purpose for normal soil, sand and earthwork; most common for daily digging and loading.
Heavy-Duty / HD Bucket
Reinforced plate and wear parts; for hard soil, mixed gravel and light rock.
Rock Bucket
Thickened high-strength steel, reinforced ribs and rugged teeth; for quarry rock, hard stone and heavy mining work.
Grading / Ditch Bucket
Flat straight edge, no side teeth; used for land leveling, ditch cleaning and slope trimming.
Clamshell Bucket
For grabbing bulk materials, scrap steel, wood and bulk cargo.
Sieve / Skeleton Bucket
With gap design to sieve soil and separate rocks, used for sorting and cleaning.
Key Components
Bucket teeth & adapters
Cutting edge / side cutter
Bucket shell & side plates
Reinforcement ribs
Pin holes and bushing positions
Main Functions
Digging and excavating earth
Loading trucks and material handling
Land grading, slope and ditch work
Rock breaking and quarrying (rock bucket)
Sorting and screening materials (skeleton bucket)
Common Materials for Excavator Bucket：
1. High Strength Low Alloy Steel (Main Bucket Body)
Q355 / NM360 / NM400
Used for the main shell, side plates, back plate and base plate.
Good toughness, structural strength and anti-deformation performance.
2. Wear-Resistant Steel (Wear Parts)
NM450, NM500, Hardox 400 / Hardox 500
Applied on:
Cutting edge
Bottom wear plates
Side wear guards
High hardness, anti-abrasion for rock and harsh digging.
3. Alloy Cast Steel (Bucket Teeth & Adapters)
High manganese alloy steel
Precision cast alloy steel
Features: high impact resistance, anti-cracking, wear-resistant for digging rock and hard soil.
4. Carbon Structural Steel (Reinforcement Ribs)
Q235, Q345
Used for stiffeners, reinforcing ribs and bracket parts to strengthen bucket structure.
5. Pin & Bushing Material
40Cr / 42CrMo alloy steel
Heat treated (quenched & tempered) for high strength, anti-wear and anti-bending.
