Used Komatsu 56-7 Excavator

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Komatsu PC56-7 Compact Crawler Excavator Detailed Introduction

The Komatsu PC56-7 is a 5-ton-class light-duty crawler excavator developed by Komatsu Ltd., the global top-tier construction equipment manufacturer, for narrow-site, high-flexibility operation demands. It is one of the best-selling small excavator models in global markets, inheriting Komatsu’s core strengths in high reliability, low fuel consumption and operator friendliness, and is widely favored by small construction contractors and individual operators.

Core Specifications

Item	Parameter
Operating Weight	5310 kg – 5560 kg
Engine Model	Komatsu proprietary S4D88E-3 water-cooled 4-stroke diesel engine
Rated Power	34.7 kW / 2400 rpm, compliant with Tier 3 / Stage IIIA emission standards
Standard Bucket Capacity	0.05 m³ – 0.22 m³ (customizable for different operation scenarios)
Travel Speed	High: 4.5 km/h, Low: 2.7 km/h
Swing Speed	11 rpm
Max. Digging Depth	3850 mm
Max. Digging Radius	6100 mm
Max. Dumping Height	4130 mm
Bucket Digging Force	40.2 kN
Arm Digging Force	25.5 kN
Ground Pressure	32 kPa (suitable for soft soil and muddy ground operations)
Fuel Tank Capacity	130 L
Hydraulic Tank Capacity	90 L

Core Performance Advantages

Highly efficient, low-consumption powertrainThe proprietary Komatsu engine is perfectly matched with the hydraulic system to achieve optimal power output, reducing energy loss by 12% on average compared to same-class competing models. Under conventional working conditions, its fuel consumption is 10%~15% lower than equivalent products. It is also equipped with an automatic idle function: the engine automatically reduces speed when the machine is idle for more than 5 seconds, further cutting operating costs and noise emission.
Precise responsive hydraulic systemAdopting Komatsu’s mature Closed Center Load Sensing System (CLSS), it realizes accurate control of boom, arm and bucket movements, supporting fine operations such as precision trenching, landscape trimming and fragile material handling. The independent travel drive system ensures stable travel speed even when the working device is operated at the same time, no speed drop or stall occurs.
Strong adaptation to harsh working conditionsIts reinforced undercarriage, high-tensile steel boom/arm, and reinforced welded joints at high-stress positions can adapt to long-time high-load operations. The standard heavy-duty cooling system supports stable operation in high-temperature environments up to 52℃, and the dust-proof sealing design for core components reduces failure rates in dusty construction sites.

User-friendly Design Features

Safe and comfortable cabThe ROPS/FOPS certified cab provides sufficient protection against rollover and falling object impacts. The fully adjustable suspension seat and full-cab shock absorption structure reduce vibration transmitted to the operator by 20% compared to the previous generation of small excavators. The wide panoramic glass eliminates operation blind spots, and the standard air conditioning system, ergonomic control levers and real-time data LCD monitor greatly improve long-time operation comfort.
Convenient maintenance designAll daily maintenance points (oil filter, fuel filter, air filter, lubrication points) are arranged at ground-accessible positions, cutting regular maintenance time by 30%. The optional reversible cooling fan can automatically blow away dust accumulated on the radiator, reducing overheating risks and manual cleaning workload.

Typical Application Scenarios

The PC56-7 is suitable for operations that large excavators cannot perform, including:

Urban municipal works: Pipeline trenching (water supply, drainage, power, communication), sidewalk construction, road patching
Landscaping: Land clearing, slope trimming, tree planting pit digging, landscape shaping
Agricultural construction: Farmland transformation, irrigation ditch excavation, greenhouse base construction
Small demolition work: Equipped with a breaker, it can be used for small building demolition, interior renovation wall breaking
Narrow space operations: Basement construction, workshop material handling, small-section tunnel construction

Optional Configurations

Users can choose customized accessories according to operation demands, including hydraulic breakers, augers, rippers, tilt buckets, quick couplers, steel tracks, dozer blade extensions, etc. The model is also locally produced in Komatsu’s joint venture factories in China, India and other emerging markets, with lower purchase and after-sales maintenance costs, and high residual value in the second-hand equipment market.

Non flooded

No accident

Original product

Used Komatsu 56-7 Excavator

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