The Komatsu PC120-6 is a reliable 12-ton-class hydraulic crawler excavator designed for construction, earthmoving, road building, foundation work, utility projects, landscaping, and general excavation applications.
Known for its durable construction, stable crawler undercarriage, responsive hydraulic system, and dependable working performance, the PC120-6 is well suited for a wide range of demanding job-site conditions.
Key Specifications & Component Layout
Brand & Model: Komatsu PC120-6
Machine Category: 12-ton-class hydraulic crawler excavator
Machine Type: Medium Hydraulic Crawler Excavator
Operating Weight: Approx. 11,500–12,500 kg
Undercarriage Architecture: Heavy-duty crawler undercarriage
Cab: Enclosed operator cab
Travel Drive: Hydraulic crawler drive
Working Equipment: Heavy-duty boom, arm, and bucket configuration
Power System: Diesel engine powertrain
Hydraulic System: Hydraulic system designed for smooth and responsive operation
Attachment Compatibility: Bucket, hydraulic breaker, grapple, ripper, auger, and other compatible attachments
Operational Features & Advantages
Reliable Excavation Performance
The Komatsu PC120-6 features a robust boom, arm, and bucket configuration designed to provide dependable digging and loading performance. It is suitable for foundation excavation, trenching, road construction, drainage projects, and general earthmoving operations.
Efficient Hydraulic System
The hydraulic system provides smooth control of boom lifting, arm movement, bucket operation, and machine travel. Responsive hydraulic control helps operators perform excavation and loading tasks efficiently while maintaining good working precision.
Stable Crawler Undercarriage
The heavy-duty crawler undercarriage provides reliable traction and stability during excavation, loading, and travel operations. It allows the PC120-6 to work effectively on uneven terrain and demanding construction sites.
Durable Powertrain
The diesel power system provides dependable power for daily excavation and material handling operations. Combined with the hydraulic system and robust working equipment, the machine is suitable for extended construction and earthmoving applications.
Practical Operating Design
The enclosed operator cab provides a practical working environment with good visibility and an accessible control layout. The design allows operators to control excavation and travel functions efficiently during daily operations.
Versatile Attachment Compatibility
The Komatsu PC120-6 can be equipped with different attachments according to project requirements. Depending on configuration, attachments may include standard digging buckets, hydraulic breakers, grapples, rippers, augers, and other specialized tools.
Good Maneuverability
The PC120-6 provides a useful balance between operating capacity and maneuverability. Its medium-size configuration makes it suitable for construction sites, road projects, utility work, and other applications where both digging performance and site access are important.
Practical Maintenance
Convenient access to major service components helps simplify routine inspection, servicing, and maintenance. Regular maintenance can help maintain reliable machine performance and minimize unnecessary downtime.
Primary Application Scenarios
Building & Foundation Construction
The PC120-6 is suitable for foundation excavation, basement work, trenching, site preparation, material loading, and general earthmoving on construction sites.
Road Construction & Infrastructure
Suitable for road excavation, roadbed preparation, drainage construction, slope work, trenching, and other civil engineering applications.
Utility & Pipeline Projects
The machine can be used for water, drainage, cable, and pipeline installation, as well as utility maintenance and trench excavation.
Landscaping & Land Development
Suitable for land clearing, grading, landscaping, soil removal, pond excavation, site preparation, and general land development projects.
Agriculture & Rural Construction
The PC120-6 can be used for irrigation systems, drainage projects, farm road construction, land preparation, pond digging, and agricultural infrastructure development.
Quarry & General Earthmoving
With suitable attachments, the machine can be used for material loading, breaking operations, quarry excavation, overburden removal, and other general earthmoving tasks.
Material Handling
With an appropriate attachment, the excavator can be used for loading, sorting, moving construction materials, and other material handling applications.
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