Komatsu excavators are trusted across the mining, civil, and heavy construction sectors for their durability, productivity, and machine control. Models like the PC1250 and up are commonly deployed on large earthworks, overburden stripping, and high-volume material handling sites.
As machines grow in scale and complexity, so too does the need for reliable aftermarket support. DGI Trading specialises in supplying late-model Komatsu excavator components to mining operations across Australia and worldwide, keeping these machines productive across long duty cycles.
The Role of Large Komatsu Excavators in Mining
In mining applications, excavators serve one purpose — move as much material as possible, efficiently and safely. On large-scale sites, machines like the Komatsu PC1250, PC2000, and PC4000 provide the power and capacity needed to match with rigid dump trucks and meet production targets.
These excavators are often tasked with:
- Stripping overburden and topsoil
- Digging and loading blasted rock
- Shaping benches and haul road cut-ins
- Clearing stockpiles and ROM pads
- Supporting auxiliary fleet operations
Their performance directly impacts overall site efficiency, especially when paired with truck fleets in tight loading windows.
Komatsu Excavator Size Classes
Komatsu offers a wide range of excavators, but the following models are most commonly used in mining and heavy civil works:
- Operating weight: ~115–118 tonnes
- Bucket capacity: 5–7 cubic metres
- Commonly paired with 60–100 tonne trucks
- Used in bulk earthworks, overburden stripping, quarrying, and civil mining infrastructure
Komatsu PC2000
- Operating weight: ~200–210 tonnes
- Bucket capacity: 10–12 cubic metres
- Common in mid-sized open-cut mines
- High production unit for consistent truck loading cycles
Komatsu PC4000 and PC5500
- Operating weight: 400–550 tonnes
- Bucket capacity: 22–29 cubic metres
- Deployed in large-scale mining operations
- Used for loading ultra-class haul trucks in iron ore, coal, and hard rock mines
These machines require rigorous service schedules and access to dependable component supply to maintain uptime. DGI Trading supports this requirement through global sourcing and warehousing of production-critical Komatsu parts.
Components That Keep Komatsu Excavators Operational
DGI Trading supplies a wide range of major and minor components for Komatsu mining excavators. Our focus is on good used, low hour, or serviceable components that meet or exceed operational standards.
Key components we stock and supply include:
- Booms, arms, and buckets
- Bucket linkage sets and pins
- Hydraulic cylinders – including boom, arm, and bucket cylinders
- Centre joints and swing motors
- Final drives and undercarriage assemblies
- Track frames, idlers, rollers, and sprockets
- Engine modules – including Komatsu and Cummins configurations
- Cab assemblies and operator modules
- Mainframes and counterweights
- Cooling packs and radiator assemblies
We also provide full assemblies and matched parts where required to reduce fitting complexity and ensure compatibility.
Common Applications for Komatsu Excavators in the Field
Overburden Removal
Machines like the PC1250 and PC2000 are ideal for fast, consistent stripping of overburden. Their reach and bucket size allow for high-volume excavation with fewer cycles, reducing operating hours per tonne moved.
Loading and Material Movement
Large Komatsu excavators are often stationed for extended periods loading trucks or moving materials to crushers, hoppers, or stockpiles. Their reliability and hydraulic performance directly affect the speed and consistency of haulage operations.
Mine Infrastructure Projects
These excavators are also used in mine development work, including:
- Haul road construction
- ROM pad preparation
- Drainage and diversion trenching
- Bulk cut-and-fill tasks for camp or plant areas
These support applications often run parallel to production and require dependable machine availability to avoid holding up critical paths.
The DGI Trading Difference
DGI Trading supports mining customers by supplying critical Komatsu excavator components when and where they are needed. Our approach is built on:
Late-Model Stock Focus
We specialise in components for late-model Komatsu excavators to support current fleets. This includes parts for PC1250, PC2000, and PC4000 series machines.
Global Procurement Network
With suppliers across Australia, Asia, Europe, and North America, we can source difficult-to-find or out-of-production parts. We also handle logistics and documentation to remote mining regions.
Component Quality Assurance
All components are inspected, photographed, and verified prior to sale. Our internal checks ensure you receive what you expect, ready to install or rebuild.
Responsive Sales Support
Our team knows Komatsu machines and their applications. Whether you are planning a scheduled shutdown or responding to an unexpected failure, we move fast to support your operation.
Need Parts for a Komatsu PC1250 or Larger?
DGI Trading supplies Komatsu excavator parts that keep mining fleets productive. Whether you are planning a major rebuild, need a replacement final drive, or are sourcing a matched set of boom cylinders, we can assist.
Our current inventory includes selected components for PC1250, PC2000, PC3000, and PC4000 series machines. We can also source parts to suit earlier or discontinued models where required.
To speak with a Komatsu specialist, call +61 2 6563 7992 or email salesaustralia@dgitrading.com. We will confirm availability, provide lead times, and support your maintenance planning with technical detail and transparency.