Orginal Japan Second Hand komatsu PC400-8 Crawler Hydraulic Digger 40tons Used Excavator in Stock

Detailed description of Komatsu PC400-8 excavator:

1. Core features

Efficient production and environmental protection

Equipped with a large-capacity bucket of 1.9-2.1 m³ (standard 1.9 m³), it improves earthwork efficiency and is suitable for high-intensity scenes such as mining and construction.

Equipped with Komatsu SAA6D125E-5 engine, displacement 11.04L, rated power 257 kW (350 PS) @1900 rpm, it meets EPA Tier 3 and EU Stage IIIA emission standards, and has both high power and environmental protection performance.

Provides multiple operating modes (such as economic mode and heavy load mode) to meet different working conditions.

Reliability and maintenance convenience

The hydraulic system uses high-pressure series filter elements and high-efficiency filter materials to reduce the risk of hydraulic oil contamination and extend the filter element replacement cycle.

Modular design, key components (such as boom and dipper cylinder) use standardized interfaces to facilitate maintenance and replacement, reducing downtime.

The equipment management monitoring system monitors the machine status in real time, prevents failures and optimizes maintenance plans.

Safety and operating comfort

The high-rigidity cab is equipped with an anti-roll structure, seat belts and hydraulic locking rods to ensure the safety of the operator in an emergency.

The cab design focuses on ergonomics, equipped with air conditioning, noise reduction devices and adjustable seats to reduce fatigue.

The track gauge is adjustable (standard 2740 mm), with a track shoe width of 600 mm, to enhance stability in complex terrain.

2. Main technical parameters

Category Parameters

Machine weight 42,100 kg (42-ton class)

Bucket capacity 1.9 m³ (standard), optional 2.1 m³

Engine Model SAA6D125E-5; 6-cylinder turbocharged direct injection; displacement 11.04L

Power 257 kW (350 PS) @1900 rpm

Travel speed Three-speed gear shift: 3.0/4.0/5.5 km/h

Swing speed 9.1 rpm

Digging force Bucket: 278 kN; Arm: 233 kN (ISO standard)

Hydraulic system Main pump flow 690 L/min; Working oil circuit pressure 37.3 MPa; Swing pressure 27.9 MPa

Fuel tank capacity 650 L

Operating range Maximum digging radius 12,005 mm; Maximum digging depth 7,790 mm; Maximum vertical digging depth 6,600 mm

Dimensions Total transport length 11,940 mm; full width 3,340 mm; full height 3,660 mm

Ground pressure 77.5-78.2 kPa (track ground length 4,020 mm)

III. Application and user feedback

Applicable scenarios: heavy-duty operations such as mining, large earthworks, and infrastructure construction.

User evaluation:

Advantages: strong power, comfortable operation, good fuel economy (using fuel-saving technology).

Disadvantages: Some users reported that the chain durability is insufficient and the digging force is slightly insufficient during mining operations.

IV. Maintenance and design advantages

Easy maintenance:

Engine oil replacement volume 37L, hydraulic oil tank capacity 248L, coolant 36L, and clear maintenance cycle.

Key components (such as cylinders and hydraulic motors) are reasonably laid out and easy to repair.

Durability design:

The boom and dipper are made of high-strength steel to extend the service life.

Anti-skid plates and reinforced track guards are standard to reduce wear.