Used Komatsu 78 Excavator

Reading: 2157

Komatsu PC78 Series Excavator Detailed Introduction

The "Komatsu 78 excavator" generally refers to the Komatsu PC78 series compact hydraulic excavators, covering two main sub-models: PC78US (ultra-short tail swing) and PC78MR (medium radius swing), which are Komatsu's star products in the 6-8 ton small excavator segment. The latest generation PC78US-11 meets global high-standard emission regulations (EU Stage V / U.S. Tier 4 Final / China Stage IV), and is widely used in narrow-space operation scenarios around the world.

1. Core Specifications (Take PC78US-11 as the standard version)

Parameter	Specific Value
Operating Weight	7,300 – 7,900 kg (varies with track width, bucket and counterweight configuration)
Engine	Komatsu original SAA4D88E-7 water-cooled 4-cylinder diesel engine, net power 48.5 kW @ 2200 rpm, passive DPF regeneration system (no manual operation required for users)
Hydraulic System	Komatsu exclusive CLSS (Closed-center Load Sensing System), main pump flow 140 L/min
Digging Force	Bucket digging force 65 kN, arm digging force 54 kN
Working Range	Max digging depth 4100 mm, max digging height 7300 mm, max dumping height 5100 mm, standard bucket capacity 0.3-0.38 m³
Travel Performance	2-speed travel, high speed 4.8 km/h, low speed 2.8 km/h, swing speed 11 rpm
Tail Swing Radius	Only 1370 mm, the rear overhang beyond the track is less than 90 mm when swinging

2. Key Features

2.1 High maneuverability for narrow spaces

The ultra-short tail design allows it to operate freely in extremely limited scenes such as urban alleys, indoor demolition sites, and orchards. Optional narrow track (total width 1900 mm) can pass through narrow entrances and exits of 2m width easily.

2.2 High efficiency and low fuel consumption

The perfect matching between Komatsu's self-developed engine and hydraulic system reduces comprehensive fuel consumption by 10% compared with products of the same level, and the actual operating fuel consumption is only 4-6 L/h. The optional ECO mode can further reduce energy consumption under light load conditions without obvious loss of operating efficiency.

2.3 Excellent operator experience

The cab is ROPS/FOPS certified, with fully adjustable suspension seats, low-effort pilot control joysticks, and a large 7-inch LCD monitor. The internal operating noise is as low as 72 dB(A), and the fully sealed cab with high-efficiency air conditioning ensures comfort in long-time operation.

2.4 High durability and easy maintenance

The boom and arm are made of high-strength wear-resistant steel, and the undercarriage parts (support rollers, idlers) adopt a fully sealed lubrication structure, with a service life 30% longer than that of competing products. All daily maintenance points (oil filter, air filter, fuel filter, oil filling port) are centrally arranged on the left side of the fuselage, and routine maintenance can be completed within 10 minutes.

2.5 Intelligent management

Equipped with Komatsu's exclusive KOMTRAX remote telematics system, it supports real-time viewing of equipment location, fuel consumption, operating hours, fault codes and maintenance reminders, which is convenient for fleet managers to carry out remote asset management.

2.6 Strong versatility

Support optional quick coupler, compatible with a variety of attachments including breaker, wood grab, auger, mower, silt bucket, etc., to meet the needs of different working conditions.

3. Main Application Scenarios

Urban municipal construction: trenching for water pipes/cables, road repair, green belt construction
Agricultural and forestry operations: orchard planting, farmland land consolidation, greenhouse construction
Indoor and old city renovation: indoor demolition, old community reconstruction
Small water conservancy projects: river dredging, irrigation channel construction
Infrastructure maintenance: railway, highway small-scale maintenance work

4. After-sales Support

Komatsu has a global after-sales service network, providing a standard 12-month/2000-hour warranty, original spare parts supply, regular on-site inspection services, and free operator operation and maintenance training for bulk purchase customers.

Non flooded

No accident

Original product

Used Komatsu 78 Excavator

RELATED PRODUCTS

Komatsu 56-7

Komatsu 300

Komatsu 78

Komatsu 200-8