Komatsu PC400 Excavator
The Komatsu PC400 gets its exceptional power and work capacity from a Komatsu PC500 engine. The output is 257 kW 345 HP, providing increased hydraulic power and fuel efficiency. The Komatsu PC400 engine is U.S. EPA Tier 2 and EU Stage 2 emissions equivalent. Komatsu PC400 engine adopts the electronically controlled Heavy-Duty High-Pressure Common Rail (HPCR) fuel injection system.
The PC400 excavator can work for up to 10 hours without refueling thanks to a Heavy Duty HPCR engine designed to handle harsh environmental conditions. This powerful machine can dig trenches, load cargo, and lift objects up to 20 feet. Plus, with a standard cab, it is easy to maneuver around tight spaces to get the job done quickly and efficiently every time.
KOMATSU PC400 EXCAVATOR PRODUCT ATTACHMENT
Mechanical Grapple
- BMG400
Hydraulic Grapple
Rotary Hydraulic Grapple
- HRHG400
KOMATSU PC400 EXCAVATOR PRODUCT ATTACHMENT
Large displacement high efficiency pump
Large displacement hydraulic implement pumps provide high flow output at lower engine RPM, operation at the most efficient engine speed.
Closed-center load-sensing hydraulic system
Smooth operation, quick cycle times, great multi-function, while lowering fuel consumption from closed-center load-sensing hydraulic system.
Komatsu PC400 Excavator is Built for strength
Equipment designed for long-term durability with high resistance to bending and torsional stress. Booms and arms are constructed with thick plates of high tensile strength streel and designed with large cross-sectional areas.
Cleaner emissions
A heavy-duty aftertreatment system that combines a Komatsu Diesel Particulate Filter (KDPF) and selective catalytic reduction (SCR). The system injects the correct amount of diesel exhaust fluid at the proper rate, decomposing nitrogen oxide.
Easy access
Engine oil check and filter locations integrated into one side to allow easier maintenance access.
Advanced ergonomic design
Wide spacious cab includes a heated air suspension seat with reclining backrest. Seat height and position are easily adjusted using a pull-up lever. Armrest position easily adjusted with the console.
Information at your fingertips
Updated, large, high-resolution LCD color monitor to ease accurate and smooth work. Key machine information displayed in user-friendly interface, rearview camera and DEF level gauge display added to default main screen.
Rollover protection
A ROPS cab that conforms to ISO 12117-2 comes as standard equipment. It also satisfies requirements for level 1 operator protective guard (OPG) and top guard (ISO 10262).
Multi-operator productivity
An operator identification ID can be set up for each operator and used to manage operation information of individual machines using Komtrax data. Data can analyze operation status by operator and by machine.
Reduce fuel consumption
Auto idle shutdown automatically shuts the engine down after idling for a set period to reduce unnecessary fuel consumption and exhaust emissions. Time before engine is shutdown can be programmed from 5 to 60 minutes.
Designed for durability
Large heavy-duty revolving frame guards and swivel guard help protect vital components from damage and debris build-up.
Ease of maintenance and serviceability
Provide a convenient and more secure work area in front of the engine. A new step provides easier access for filling the AdBlue/DEF tank.
PRODUCT SPECIFICATIONS FOR KOMATSU PC400 EXCAVATOR
ENGINE |
| Model | Komatsu SAA6D125E-5 |
| Type | Water-cooled, 4-cycle, direct injection |
| Aspiration | Turbocharged, aftercooled |
| Number of cylinders | 6 |
| Bore | 125 mm |
| Stroke | 150 mm |
| Piston displacement | 11.04 L |
| Horsepower: | |
| SAE J1995 | Gross 270 kW 362 HP |
| ISO 9249 / SAE J1349 | Net 257 kW 345 HP |
| Rated rpm | 1900 min-1 |
| Fan drive method for radiator cooling | Mechanical |
| Governor | All-speed control, electronic |
| U.S. EPA Tier 3 and EU Stage 3A emissions certified. |
HYDRAULICS |
Type: HydrauMind (Hydraulic Mechanical Intelligence New Design) system, closed-center system with load sensing valves and pressure compensated valves
| Number of selectable working modes: | 4 |
| Main pump: | |
| Pumps for | Boom, arm, bucket, swing, and travel circuits |
| Type | Variable displacement piston type |
| Maximum flow | 690 L/min |
| Supply for control circuit | Self-reducing valve |
| Hydraulic motors: | |
| Travel | 2 x axial piston motor with parking brake |
| Swing | 1 x axial piston motor with swing holding brake |
| Relief valve setting: | |
| Implement circuits | 37.3 MPa 380 kg/cm2 |
| Travel circuit | 37.3 MPa 380 kg/cm2 |
| Swing circuit | 27.9 MPa 285 kg/cm2 |
| Pilot circuit | 3.2 MPa 33 kg/cm2 |
| Hydraulic cylinders: | |
| Number of cylinders | Bore x Stroke x Rod Diameter |
| Boom | 2–160 mm x 1570 mm x 110 mm |
| Arm: | |
| Std except 2.4 m arm | 1–185 mm x 1820 mm x 120 mm |
| for 2.4 m arm | 1–185 mm x 1590 mm x 120 mm |
| SE | 1–185 mm x 1820 mm x 120 mm |
| Bucket: | |
| Std | 1–160 mm x 1270 mm x 110 mm |
| SE | 1–185 mm x 1160 mm x 120 mm |
DRIVES AND BREAKS |
| Steering control | Two levers with pedals |
| Drive method | Hydrostatic |
| Maximum drawbar pull | 330 kN 33700 kg |
| Gradeability | 70%, 35° |
| Maximum travel speed: (Auto-Shift) | |
| High | 5.5 km/h |
| Mid | 4.0 km/h |
| Low | 3.0 km/h |
| Service brake | Hydraulic lock |
| Parking brake | Mechanical disc brake |
SWING SYSTEM |
| Drive method | Hydrostatic motor |
| Swing reduction | Planetary gear |
| Swing circle lubrication | Grease-bathed |
| Service brake | Hydraulic lock |
| Holding brake/Swing lock | Mechanical disc brake |
| Swing speed | 9.1 min-1 |
UNDERCARRIAGE |
| Center frame | X-frame |
| Track frame | Box-section |
| Seal of track | Sealed track |
| Track adjuster | Hydraulic |
| Number of shoes | 46 each side |
| Number of carrier rollers | 2 each side |
| Number of track rollers | 7 each side |
COOLANT & LUBRICANT CAPACITY (Refilling) |
| Fuel tank | 650 L |
| Coolant | 36.0 L |
| Engine | 37.0 L |
| Final drive, each side | 10.5 L |
| Swing drive | 20.0 L |
| Hydraulic tank | 248 L |
OPERATING WEIGHT APPROXIMATE |
Operating weight including 7060 mm one-piece boom, 3380 mm arm, ISO 7451 heaped 1.90 m3 backhoe bucket, rated capacity of lubricants, coolant, full fuel tank, operator, and standard equipment.