Used Komatsu 56-7 Excavator

Reading: 2014

Komatsu PC56-7 Compact Crawler Excavator Detailed Introduction

The Komatsu PC56-7 is a classic 5-6 ton class small crawler excavator under Komatsu's 7-series product line, designed for narrow-space, light-to-medium load construction scenarios. It balances power, fuel efficiency, durability and operating comfort, and is widely recognized in global small construction equipment markets for its low operating cost and high residual value.

1. Core Specifications (Standard Configuration)

Parameter	Detail
Operating Weight	5300 kg – 5500 kg (varies by attachment configuration)
Engine	Komatsu 4-cycle water-cooled diesel engine, rated net power 34.6 kW @ 2400 rpm, compliant with Tier 3 / Stage IIIA emission standards
Bucket Capacity	Standard 0.22 m³, optional 0.1 m³ – 0.3 m³ buckets for different scenarios
Digging Force	Bucket digging force: 40.2 kN; Arm digging force: 28.4 kN
Key Working Range	Max digging depth: 3850 mm; Max digging reach: 6100 mm; Max dumping height: 4050 mm
Travel Performance	Travel speed: 2.2 km/h (low) / 4.3 km/h (high); Gradeability: 70% (35°)
Hydraulic System	Closed Load Sensing System (CLSS), rated system pressure 28 MPa, total flow 132 L/min
Tank Capacity	Fuel tank: 130 L; Hydraulic oil tank: 90 L

Specifications may vary slightly by regional market and custom configurations.

2. Key Features

2.1 High Efficiency & Low Fuel Consumption

Matched optimized engine and hydraulic system reduces energy loss, with two optional working modes: Power (P) mode for heavy-load operations such as rock breaking and deep digging, and ECO mode for light-load operations that reduces fuel consumption by about 10% compared to full-power mode.
Precise hydraulic control ensures smooth composite movements (boom lifting + arm retraction + rotation at the same time), improving operation efficiency by 15% compared to older models of the same class.

2.2 Flexible Design for Narrow Spaces

Ultra-compact fuselage with a width of only 1880 mm, short-tail swing design (tail swing radius 1700 mm, only 120 mm beyond the crawler), no collision risk when working in narrow alleys, indoors or under bridges.
Standard boom offset function (left offset 650 mm, right offset 300 mm), supports close-to-wall digging and pipe laying without moving the whole machine.

2.3 Operator Comfort

ROPS/FOPS certified sealed cab, with sound insulation design that controls indoor noise below 75 dB during operation.
Adjustable suspension seat, multi-angle adjustable armrests, and fully functional LCD monitor that displays real-time operating parameters, fault alarms and maintenance reminders.
Standard heating and cooling air conditioning system, large area skylight and wide view window, suitable for long-time operation in extreme weather.

2.4 Durability & Reliability

Main structural parts (boom, arm, undercarriage frame) are made of high-strength wear-resistant steel, with reinforced welding joints to adapt to long-term high-load operation.
Sealed and lubricated track chain, supporting wheels and carrier rollers, extending service life by 30% compared to ordinary configurations.
Multi-stage filtration system for hydraulic oil and fuel, effectively avoiding oil pollution caused failures.

2.5 Easy Maintenance

All common maintenance points (air filter, oil filter, fuel filter, hydraulic oil drain port) are arranged at ground-accessible positions, no need to climb the fuselage for daily maintenance.
Long maintenance interval: engine oil replacement every 500 working hours, hydraulic oil replacement every 2000 working hours, reducing downtime.

3. Application Scenarios

Urban municipal works: trench digging, pipeline laying, road patching, small demolition
Landscaping: tree pit digging, terrain leveling, nursery stock transplanting
Indoor and floor renovation: interior demolition, waste cleaning (light weight will not damage floor structure)
Agricultural and rural construction: irrigation canal digging, reservoir construction, homestead leveling
Special operations: can be matched with optional attachments (hydraulic breaker, log grab, auger, rake bucket) to realize breaking, material handling, drilling and other functions.

4. After-sales Support

Komatsu covers more than 150 countries and regions with its after-sales service network, with sufficient original spare parts supply. Most versions are equipped with the Komtrax remote monitoring system, which supports real-time viewing of equipment location, working hours, fuel consumption and fault warning, convenient for fleet management and fault pre-judgment.

Non flooded

No accident

Original product

Used Komatsu 56-7 Excavator

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