Used Komatsu PC56 Excavator 5.6 Ton Compact Digger

Product Introduction

Inspected used Komatsu PC56 excavator with 5.3t weight, S4D87E-1 engine, and original hydraulics. Ideal for construction & agriculture. Global export ready. Request quote.

Product Information

Type:

Komatsu PC56

Operating weight:

5300kg

Walking speed:

2.6-4.1 km/h

Engine model:

Komatsu S4D87E-1

Hydraulic pump:

Komatsu

Fuel tank:

120L

This verified used Komatsu PC56 excavator delivers exceptional hydraulic efficiency and compact maneuverability for global infrastructure contractors, agricultural developers, and urban construction fleets. Powered by an original Komatsu S4D87E-1 water-cooled 4-cylinder engine rated at 34.5 kW at 2300 rpm, this 5300 kg operating weight crawler excavator combines lower fuel consumption with dependable digging power. Every unit undergoes rigorous performance testing—including hydraulic pressure verification, engine load compression tests, and chassis structural integrity evaluations—before export dispatch. Equipped with a 0.22 m³ standard bucket capacity and original main distributor valves, this small excavator offers an economical alternative to new machinery, ensuring immediate operational readiness and long-term fleet uptime across diverse operating environments.

Core Technical Advantages and Fleet Value

Selecting reliable pre-owned earthmoving equipment requires strict verification of mechanical systems, structural durability, and hydraulic responsiveness. The Komatsu PC56 crawler excavator integrates industry-proven Japanese engineering to lower total cost of ownership while maintaining high daily productivity.

Engine Reliability and Fuel Economy

The engine compartment houses a genuine Komatsu S4D87E-1 four-stroke engine featuring a 2.434 L displacement and water-cooling architecture. Operating through a 120 L fuel tank capacity, this naturally aspirated diesel engine maintains consistent torque output under continuous load, cutting overall hourly fuel expenditure compared to larger displacement models in the 5-ton class.

High-Precision Hydraulic System

Equipped with an authentic Komatsu hydraulic pump and main distribution valve assembly, the PC56-7 provides smooth compound movements during simultaneous digging, swinging, and travel operations. The system generates a maximum bucket digging force of 39.8 kN and a stick digging force of 24.4 kN, allowing operators to trench through hardened clay, gravel, and compacted soil without hydraulic lag.

Robust Undercarriage and Structure

Built with heavy-duty steel track shoes and a reinforced X-frame undercarriage, the machine maintains stable ground contact across rough, uneven terrain. With a gradeability rating of 35° / 70%, 9 rpm rotation speed, and travel speeds ranging from 2.6 km/h to 4.1 km/h, this excavator navigates slope earthworks and restricted job sites with high stability and confidence.

Detailed Product Specifications

Parameter Item	Specification Data
Machine Type / Model	Komatsu PC56
Operating Weight	5300 kg
Bucket Capacity	0.22 m³
Rotation Speed	9 rpm
Walking Speed	2.6 - 4.1 km/h
Gradeability	35° / 70%
Bucket Digging Force	39.8 kN
Stick Digging Force	24.4 kN
Engine Model	Komatsu S4D87E-1
Rated Power	34.5 kW / 2300 rpm
Hydraulic Pump	Komatsu original
Distribution Valve	Komatsu original
Displacement	2.434 L
Number of Cylinders	4
Cooling Method	Water-cooling
Fuel Tank Capacity	120 L
Overall Dimensions (L × W × H)	5935 mm × 1960 mm × 2550 mm
Maximum Excavation Radius	6130 mm
Maximum Excavation Depth	3810 mm
Maximum Excavation Height	5860 mm
Maximum Unloading Height	4130 mm
Maximum Vertical Excavation Depth	3060 mm

Primary Application Scenarios

The versatility of the 5.3-ton hydraulic crawler platform allows the Komatsu PC56 to excel across multiple key sectors:

Urban Municipal Infrastructure: Featuring a compact 1960 mm transport width and a maximum excavation radius of 6130 mm, this machine works efficiently inside tight municipal road repair zones, trenching for utility pipes, sewer line installations, and fiber optic cabling without blocking neighboring traffic lanes.
Agricultural Land Engineering: Ideal for farm drainage ditching, orchard land clearing, fishpond maintenance, and rural irrigation network construction, where light ground pressure minimizes soil compaction.
Commercial Building Foundation Work: With a maximum digging depth of 3810 mm and maximum unloading height of 4130 mm, contractors quickly load tandem dump trucks while performing precision footings, basement digging, and site grading.
Landscaping and Demolition Support: Equipped with standard auxiliary hydraulic lines, the unit operates hydraulic breakers, augers, and timber grapples for indoor structural stripping, rock fracturing, and landscape contouring.

Quality Inspection, Customization, and Export Logistics

To safeguard international buyer investments, every pre-owned Komatsu PC56 undergoes standardized multi-point quality control before containerized loading or flat-rack shipping:

Pre-Shipment Inspection (PSI): Qualified technicians inspect hydraulic fluid clarity, main valve pressure settings, track tensioning, slew bearing clearances, and electrical wire harnesses. Full operational test videos and live video calls are available prior to final payment.
Optional Fleet Customization: Tailor machine configurations to specific job site demands, including steel or rubber track shoe retrofits, custom bucket sizes (narrow trenching or ditch cleaning buckets), quick coupler installation, and customized exterior body refinishing/repainting.
Export Cleaning and Corrosion Protection: Machinery frames undergo high-pressure steam cleaning, engine degreasing, exposed cylinder rod anti-rust coating, and full cab sealing prior to ocean transportation to prevent marine air oxidation.
Global Logistics Fulfillment: We coordinate ocean freight handling, commercial invoice documentation, bill of lading issuance, Certificate of Origin (CO), and custom wooden framing or tie-down securing for seamless port customs clearance.

Frequently Asked Questions (FAQ)

What pre-export inspection procedures are performed on the Komatsu PC56-7?

Each excavator undergoes a full 50-point mechanical inspection covering engine cylinder compression, hydraulic main relief valve pressure, swing motor play, undercarriage roller wear, and structural weld integrity. A complete video inspection report is provided before delivery.

How are pre-owned excavators packaged and secured for container shipment?

For standard 40ft HQ container loading, the boom, arm, and cab structures are securely braced using heavy-duty steel wire ropes, chocks, and anti-vibration straps. Exposed hydraulic cylinder shafts are coated with marine-grade rust preventative grease.

What options are available for bucket attachments and track shoe replacement?

We supply custom bucket configurations ranging from 0.15 m³ narrow trenching buckets to 0.3 m³ ditch cleaning buckets, as well as hydraulic breakers and quick hitches. Track shoes can be fitted with rubber pads for asphalt protection or kept as heavy-duty steel tracks.

What documentation is supplied for international customs clearance?

We supply a complete export documentation package, including the Commercial Invoice, Packing List, Ocean Bill of Lading, Machinery Technical Inspection Report, and Certificate of Origin (CO/Form E/Form F) tailored to your destination country import regulations.