Excavator digging buckets · general-purpose, heavy-duty and extreme-duty builds, sizing to machine, material density and truck, teeth, edges and tip radius, wear-plate hardness
An excavator digging bucket is the hoe attachment that cuts, fills and carries soil or rock: a welded shell with a cutting edge carrying teeth or a bolt-on edge, side cutters and wear protection, and a hinge or coupler interface on top. Ask three things first: which duty class your ground needs, what size suits the machine, the material density and the trucks you load, and what wear steel, teeth and protection the bucket carries.
General-purpose, heavy-duty and extreme-duty (rock) digging buckets for crawler and wheeled excavators, direct-fit or for quick couplers. Ditching and grading buckets, clamshell, screening, crusher and tilt buckets, wheel loader buckets and teeth, adapters or cutting edges sold alone are outside this page except where compared.
Start with your task
01
Volvo CE's guide to excavator buckets describes general-purpose (digging) buckets for topsoil, clay, sand and dirt and tougher ground with gravel and loose stones, and reinforced heavy-duty buckets for blasted rock, hard-packed clay, stone, ripped basalt, shot granite and high-silica sand, which Volvo says “are typically used in applications like rock quarries for loading and rehandling”. On sizing it warns that a bucket that is too large can slow cycle times, especially with high-density material, that material density affects how much the bucket can pick up, that the excavator's size and configuration set the size range, and that bucket size should be matched to the haul truck so trucks fill in the fewest passes. [1]
Volvo's own product pages separate a heavy-duty bucket for hard ground, gravel and rock, with extended side and bottom wear protection and a high-abrasion tooth system, from an extreme-duty bucket for granite, slag and iron ore with an all-over reinforced structure, internal and external wear strips, corner and side shrouds, a spade-nose cutting edge, segments and teeth with wear caps. [2] [3]
Editorial calculation: a 1.2 m³ bucket filled with material at 1.8 t/m³ carries about 1.2 × 1.8 = 2.16 t, so a 25 t truck needs about 25 / 2.16 ≈ 11.6, that is 12 passes; a larger bucket or a lower-density material reduces the count, while the excavator's size, configuration and reach set the size range. [1] Volume, density and truck payload are assumed examples, and real fill varies with material and operator.
Give the supplier the excavator make, model and operating weight, linkage or quick coupler type and pin dimensions, the material (type, density, abrasiveness, rock size), the duty (digging, loading, trenching width), the trucks loaded, tooth system preference, wear steel and protection required, and whether a bucket capacity figure must be stated as heaped or struck and to which rating method.
02
Volvo's guide points to wear strips that protect the sides and back, side cutters that protect the cutting edge and improve penetration, teeth for excavating, bolt-on edges for a smooth finish in grading, and pick-point teeth for extremely compact material; it notes that a short tip radius gives more breakout force and less bucket wear, while a long tip radius gives more capacity, and that its buckets are built from AR400 abrasion-resistant steel. [1]
SSAB's data for its Hardox wear plate show what a wear-steel grade means in numbers: Hardox 400 plate from 4 to 130 mm has a hardness of 370–430 HBW and a typical yield strength of 1,100 MPa, and Hardox 450 plate from 3.2 to 80 mm has 425–475 HBW and a typical 1,250 MPa. SSAB describes the extra 50 HBW of Hardox 450 over Hardox 400 as giving better dent and abrasion resistance, or the option of thinner, lighter plate. [4] [5]
Editorial note: ask the supplier to name the steel grade and hardness range used for the cutting edge, side plates, bottom and wear strips, rather than only a generic wear-resistant label, and which tooth system and adapters are fitted.
03
Suppliers linked to this page list excavator digging buckets; each card links to the page reviewed.
Listings include standard and heavy-duty rock buckets for excavators of various sizes, buckets alongside long-reach booms and other attachments, and buckets offered with amphibious excavators. Ask each for capacity and its rating basis, width, weight, steel grades, tooth system and the pin or coupler interface.
04
This is a functional reference built from the sources cited; it is not one maker's specification.
| Part | Role | Fix in the order |
|---|---|---|
| Shell (sides, wrapper, back) | Holds the load; takes wear. [1] | Steel grade and thickness. |
| Cutting edge | Cuts the ground; spade nose or flat. [3] [1] | Edge type and grade. |
| Teeth and adapters | Penetrate and protect the edge. [2] [1] | Tooth system and pins. |
| Side cutters | Protect edge, improve penetration. [1] | Bolt-on or welded. |
| Wear strips, shrouds, segments | Protect sides, bottom and corners. [3] | Extent of protection. |
| Hinge or coupler interface | Connects to the stick. [1] | Pin size, spacing, coupler. |
05
An excavator bucket quotation needs values for your machine and ground. The table explains each field, gives published values where a reviewed source states them, and says what to obtain from the supplier.
| Field | What it means and published values | Ask the supplier for |
|---|---|---|
| Bucket Capacity (m³) | Match to machine, density and truck. [1] | Heaped capacity and method. |
| Bucket Width (mm) | Trench width; a 36 in bucket for a 24 in trench is counter-productive. [1] | Width with and without side cutters. |
| Bucket Weight (kg) | Part of the machine matching. | Weight. |
| Material Grade | Example: AR400; Hardox 400/450. [1] [4] [5] | Grade per part. |
| Hardness (Wear Plates) (HBW) | Examples: 370–430 (Hardox 400), 425–475 (Hardox 450). [4] [5] | Hardness range. |
| Operating Temperature (°C) | Site climate. | Steel toughness data for your climate. |
| Bucket Angle (°) | Tip radius and profile. [1] | Tip radius. |
| Tolerance (Cutting Edge) (mm) | Fit of bolt-on parts. | Tolerance. |
| Pin Diameter (mm) | Machine or coupler interface. | Pin size and spacing. |
| Bucket Volume (Struck) (m³) | Volume without heap. | Struck capacity. |
06
Paste it into your enquiry below or into an email to a maker, then replace every bracket.
Machine: [make; model; weight; coupler or pins] Ground: [material; density; abrasiveness; rock size] Duty: [digging; loading; trench width] Trucks: [payload; target passes] Wear: [steel grades; teeth; side cutters; shrouds] Capacity: [heaped; struck; rating method]
These companies list excavator digging buckets.
Lists rock buckets for excavators with forged bucket teeth and adapters.
Product scope checked 2026-10-11
Lists heavy-duty excavator rock buckets with long-reach booms and arms.
Product scope checked 2026-10-11
Lists standard and heavy-duty rock buckets, for example a 0.8 m³ bucket for PC200-class excavators.
Product scope checked 2026-10-11
Lists digging rock buckets and other excavator attachments for 8–30 ton excavators.
Product scope checked 2026-10-11
Lists excavator buckets with clamshell, cleaning and crusher buckets.
Product scope checked 2026-10-11
Lists excavator buckets among attachments alongside cranes and aerial platforms.
Product scope checked 2026-10-11
Lists excavator buckets with amphibious excavators and dredging machines.
Product scope checked 2026-10-11
Explore company information and manufacturing capabilities, then discuss the scope of your project with a relevant supplier.
Volvo CE uses general-purpose buckets for soil, clay, sand and gravel and heavy-duty buckets for blasted rock, hard-packed clay and stone. [1]
No; Volvo CE warns an oversized bucket can slow cycles, especially with dense material, and should be matched to machine and truck. [1]
Sources checked 2026-10-12. Volvo CE is an excavator maker describing its own buckets and selection advice; SSAB is a steelmaker publishing data for its own wear plate. Their figures are examples, not requirements for other makes.
Ask for use case, specification boundaries, supplier type, and RFQ preparation information for this product.
Compare manufacturer profiles with relevant product and process capability.