High Quality Used Komatsu Excavator for Sale PC400 Earth Moving Second Hand Excavator Digger Pc 400 Pc400-8 Pc400-7

Detailed description of Komatsu PC400 excavator:

1. Core features

Efficient power and environmental protection

Equipped with Komatsu SAA6D125E-3 engine, displacement 11.04L, rated power 246kW (334 horsepower) @1850 rpm, meets EPA Tier 3 and EU Stage IIIA emission standards, taking into account both power and environmental protection needs.

Standard 1.9 m³ bucket (optional 2.1 m³), suitable for high-intensity operation scenarios such as mines and earthworks.

Adopts three-speed travel (3.0/4.0/5.5 km/h) and rotation speed 9 rpm to adapt to complex terrain and efficient operation needs.

Reliability and durability

The hydraulic system adopts high-pressure design, the main pump flow is 690 L/min, and the working oil circuit pressure is 37.3 MPa to ensure operation stability.

The boom and dipper are made of high-strength steel, the boom length is 7060 mm, and the dipper length is 3380 mm, which improves fatigue resistance.

The track gauge is 2740 mm, the ground contact length is 4020 mm, and the ground contact pressure is 77.5 kPa, which enhances the stability on complex ground.

Safety and operating comfort

The cab is equipped with an anti-rollover structure, air conditioning system and noise reduction device, and the operating interface conforms to the ergonomic design to reduce fatigue.

Equipped with an emergency brake device and a hydraulic lock rod to ensure safe operation.

2. Main technical parameters

Category Parameters

Machine weight 41,400 kg (42-ton class)

Bucket capacity 1.9 m³ (standard configuration)

Engine Model SAA6D125E-3; 6-cylinder turbocharged direct injection; Displacement 11.04L

Power 246 kW (334 horsepower) @1850 rpm

Maximum digging depth 7,820 mm

Maximum digging radius 12,025 mm

Travel speed Three-speed transmission: 3.0/4.0/5.5 km/h

Hydraulic system pressure Working oil circuit 37.3 MPa; Swing circuit 27.9 MPa

Fuel tank capacity 650 L

Dimensions Transport state 11,940×3,340×3,635 mm (length×width×height)

3. Application scenarios and user feedback

Applicable scenarios: heavy-duty operating environments such as mining, large-scale earthwork projects, and infrastructure construction.

User evaluation:

Advantages: strong power, stable operation, good fuel economy (some users reported reasonable fuel consumption).

Disadvantages: Some second-hand equipment users pointed out that machines with high hours (such as 9,000 hours) may have chain wear or hydraulic system aging problems and require regular maintenance.

IV. Maintenance and design advantages

Modular design: Key components (such as boom cylinders and hydraulic pumps) use standardized interfaces, which are easy to repair and reduce downtime.

Maintenance cost: Engine oil replacement volume 38L, hydraulic oil tank capacity 248L, coolant 34.2L, clear maintenance cycle.

Enhanced durability: Standard anti-skid plate and reinforced track guard to reduce wear during operation