Komatsu PC400 excavator: Ideal for efficient operations

Basic parameter

Tonnage about 40 tons (working weight: 39,000~41,000 kg, depending on configuration)
Engine Komatsu SAA6D140E-7 (Country III/Euro III emissions)
Rated power 228 kW (306 HP) 1,900 rpm
Bucket capacity standard configuration 1.6~2.2 m³ (optional rock bucket, large capacity bucket, etc.)
Maximum digging depth about 7.3 m (with standard arm)
The maximum excavation radius is about 11.2 meters

Core configuration and performance

  1. Power system
    Engine technology:
    High pressure common rail fuel injection system to improve combustion efficiency, reduce fuel consumption and emissions.
    Equipped with turbocharged and intercooler for high altitude and high temperature conditions.
    Environmental standards: Meet EPA Tier 3/EU Stage IIIA emission standards, and some new models are upgraded to Tier 4 Final.
  2. Hydraulic system
    CLSS Hydraulic System (Closed Center Load Sensing System) :
    Achieve accurate matching of flow and pressure, improve the fluency of composite action, and reduce energy consumption by about 8-12%.
    The maximum flow rate of the main pump is 2×249 L/min, which is suitable for heavy-duty excavation and fast cycle operation.
    Optional mode:
    P Mode (Power) : Priority power output, suitable for hard rock excavation.
    E mode (Eco) : Intelligent power reduction and fuel saving.
  3. Structural design
    Type X reinforced chassis:
    Increase torsional resistance by 20%, extend service life, adapt to rough terrain and heavy mine impact.
    Working device:
    The boom and bucket rod are welded with high-tension steel plates, and the key parts are reinforced with a fatigue life of 15,000 hours +.
    The standard heavy-duty track (plate width is 900/1000 mm), and the ground ratio is low to 0.7 kg/cm² for increased stability.

Intelligence and operation experience

  1. Intelligent control system
    KOMTRAX Remote Monitoring:
    Real-time tracking of equipment location, operating status, fuel consumption and failure codes to support preventive maintenance.
    Automatic idle function: When the operation handle does not move, the engine automatically slows down to idle speed, reducing ineffective fuel consumption.
    Multi-function monitoring screen: display key data such as hydraulic oil temperature, coolant temperature, fuel amount, etc., support multi-language interface.
  2. Driving comfort
    Cab design:
    Comply with FOPS/ROPS safety standards, anti-tumbling and anti-falling objects.
    Equipped with air suspension seat, automatic air conditioning, low noise design (≤72 dB).
    Operability:
    The pilot hydraulic control lever can adjust the operation force to reduce the fatigue of long-term operation.

Application scenarios and advantages

1.Core application areas
Mining: Ore loading, stripping operations, suitable for large mining trucks (such as Komatsu HD785).
Earthwork: river excavation, roadbed leveling, efficiency up to 500-800 m³/ day (depending on soil quality).
Rock crushing: With a hydraulic crushing hammer (e.g. Montabert HC200), treat medium and hard rock formations.

2.Performance advantage
Efficient and durable: the average cycle time under mining conditions is 25-30 seconds, and the average daily operation volume is ahead of the competitive products in the same level.
Fuel economy: Combined fuel consumption of 18-22 L/h, saving about 5-8% compared to the Caterpillar CAT390.
Low maintenance costs:
Hydraulic oil change cycle 5,000 hours (conventional models about 2,000 hours).
Centralized lubrication point design reduces daily maintenance time by 30%.

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