Tailored for mass excavation projects, this large excavator is equipped with the Super Performance arrangement, featuring a short undercarriage, a compact mass excavation boom, and larger buckets for optimal truck loading during high-production operations.
- Enhanced Power: Experience a 13% increase in horsepower, resulting in an impressive 8% overall performance boost for tackling demanding tasks with ease.
- Versatile Configurations: Enjoy the flexibility of two application configurations, adapting the excavator to different job requirements for maximum versatility.
- Operator Awareness: The excavator prioritizes operator awareness, providing an environment conducive to efficient and safe operation.
- Serviceability Design: Designed with serviceability in mind, this excavator ensures easy maintenance, minimizing downtime and optimizing overall operational efficiency.
Product Features and benefits:
- Powerful Engine:
- The excavator boasts a 13% increase in horsepower (HP) leading to up to 8% greater productivity.
- The engine is Tier 4 Final-compliant, eliminating the need for diesel exhaust fluid or a selective catalytic converter.
- Additional features include an auto idle shutdown timer and a thermostatically controlled variable-speed cooling fan.
- Reinforced Structures:
- The excavator is designed to withstand tough applications through strengthened revolving, center, and crawler frames.
- Large cross-section structures utilize high-tensile-strength steel to enhance durability and resistance to bending and torsional stresses.
- Improved Serviceability:
- Easy access to engine, hydraulic system, and maintenance service areas is facilitated by center and large left-side walkways.
- Engine air cleaners have been relocated outside the engine compartment for convenient access.
- Enhanced Cab:
- Operator comfort is prioritized with a large pressurized cab featuring a 7-inch color monitor and a fully adjustable, heated air-suspension seat.
- An optional 45° hydraulic access ladder is available for ease of operator entry and exit.
- Enhanced Hydraulic System:
- Smarter hydraulics with increased flow at higher pressures and new EPC (Electronic Pressure Control) valves improve machine logic to match working loads.
- New filter by-pass sensors monitor system health and alert operators if clogging conditions exist.
- Improved Operator Awareness:
- Standard KomVision camera system provides a bird’s-eye view of the surrounding area, enhancing operator situational awareness.
- Komtrax Plus enables expanded monitoring of the fleet via satellite and wireless LAN.
Product Specifications for PC1250SP-11:
Engine:
- Model: Komatsu SAA6D170E-7*
- Type: Water-cooled, 4-cycle, direct injection
- Aspiration: Turbocharged, aftercooled, cooled, EGR
- Number of cylinders: 6
- Bore: 6.69 in
- Stroke: 6.69 in
- Piston displacement: 1,413 in³
- Governor: All-speed, electronic
Horsepower:
- SAE J1995 – Gross: 775 HP
- ISO 9249 / SAE J1349 – Net: 758 HP
- Rated rpm: 1,800 rpm
- Hydraulic fan at maximum speed – Net: 696 HP
- Governor: All-speed control, electronic
- Fan drive method for radiator cooling: Hydraulic
- EPA Tier 4 Final emissions certified
Hydraulics:
- Type: Open-center load sensing system, 1 selectable working mode
- Main pump:
- Type: Variable capacity piston
- Maximum flow implement and travel: 2 x 130.5 gpm
- Maximum flow swing: 1 x 158.5 gpm
- Sub-pump for control circuit: Gear type
- Fan drive pump: Variable-capacity piston type
- Hydraulic motors: Gear pump
- Travel: 2 x axial piston motors with parking brake
- Swing: 2 x axial piston motors with swing holding brake
- Relief valve setting:
- Implement circuits: 4,550 psi
- Travel circuit: 4,980 psi
- Swing circuit: 4,267 psi
- Pilot circuit: 455 psi
- Hydraulic cylinders:
- Cylinder / Number of cylinders: Bore x stroke x rod diameter
- Boom / 2: 8.9 x 94.1 x 6.3 in
- Arm / 1: 9.8 x 95.9 x 6.7 in
- Bucket:
- Standard / 2: 6.3 x 71.8 x 4.5 in
- SP / 2: 6.3 x 76.8 x 4.5 in
Drives and Brakes:
- Steering control: Two levers with pedals
- Drive method: Fully hydrostatic
- Travel motor: Axial piston motor, in-shoe design
- Reduction system: Planetary triple reduction
- Maximum drawbar pull: 154,320 lbf.
- Gradeability: 70%, 35°
- Maximum travel speed:
- High: 2.0 mph
- Low: 1.5 mph
- Service brake: Hydraulic lock
- Parking brake: Oil disc brake
Swing System:
- Drive method: 2 x hydraulic motors
- Swing reduction: Planetary gear
- Swing circle lubrication: Grease-bathed
- Service brake: Oil disc brake
- Holding brake/swing lock: Mechanical disc brake
- Swing speed: 5.8 rpm
- Swing torque: 299,524 lbs.-ft.
Undercarriage:
- Center frame: H-leg frame
- Track frame: Box-section
- Track type: Sealed
- Track adjuster: Hydraulic
- Number of carrier rollers (each side): 3
- Number of shoes (each side):
- Standard, SP: 48
- Long undercarriage: 55
- Number of track rollers (each side):
- Standard, SP: 8
- Long undercarriage: 10
Coolant and Lubricant Capacity (refilling):
- Fuel tank: 359.3 US gal
- Coolant: 37.5 US gal
- Engine: 22.7 US gal
- Final drive, each side: 5.5 US gal
- Swing drive: 2 x 5.3 US gal
- Hydraulic tank: 177.0 US gal
Sound Performance:
- Exterior – ISO 6395: 109.9 dB(A)
- Operator – ISO 6396: 68.5 dB(A)
Operating Weight (Approximate):
- Mass Excavation:
- PC1250SP-11: Operating weight, including 25 ft. 7 in boom, 11 ft. 2 in arm, 8.8 yd³ bucket, track roller guard, operator, lubricant, coolant, full fuel tank, and standard equipment.
- PC1250SP-11:
- Double-Grouser Shoes:
- 28 in: Operating Weight: 259,960 lbs., Ground Pressure (ISO 16754): 21.85 psi
- 39.4 in: Operating Weight: 265,900 lbs., Ground Pressure (ISO 16754): 15.64 psi
- Double-Grouser Shoes:
Further information on this machine can be viewed by visiting this link https://www.komatsu.com/products/excavators/large-excavators/pc1250sp-11
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