Large excavator

PC1250SP-11

  • Horsepower 565 kW @ 1 800 rpm 758 HP @ 1,800 rpm
  • Operating weight 117 916 - 120 610 kg 259,960 - 265,900 lbs.
  • Bucket capacity 3.1 - 9.1 m³ 4.1 - 11.9 yd³
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  • Komatsu PC1250SP-11 Excavator in white background
  • Komatus PC1250 excavator working alongside Komatsu mining truck
  • Komatsu PC1250SP-11 excavator in construction site

High-capacity excavation.

Ideal for mass excavation jobs, this large excavator comes with a Super Performance arrangement that includes a short undercarriage, short mass excavation boom and larger buckets for high production truck loading.

  • 13% more HP and up to 8% increase in performance*
  • Versatility with two application configurations
  • Exceptional operator awareness
  • Designed for serviceability

Features and benefits

Excavators_PC1250_literature link_tier fourengine_SAA6D170E-7.psd

Powerful engine

13% more HP and up to 8% greater productivity*. A Tier 4 Final-compliant engine without requiring diesel exhaust fluid or a selective catalytic converter. Auto idle shutdown timer and thermostatically controlled variable speed cooling fan.
Excavator_PC1250SP-11_DelHur_Texas_KMoncini_191115_Komatsu_PC1250-11_037.jpg

Reinforced structures

Withstand tough applications with strengthened revolving, center and crawler frames. Large cross-section structures use high-tensile-strength steel to increase durability and resistance to bending and torsional stresses.
Excavator_PC1250_literature link__20160904a_114937.eps

Improved serviceability

Gain easy access to engine, hydraulic system and maintenance service areas with center and large left side walkways. Engine air cleaners have been relocated outside the engine compartment for easy access.
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Enhanced cab

Keep your operators comfortable with a large pressurized cab that comes with a 7-inch color monitor and fully adjustable, heated air-suspension seat. Optional 45° hydraulic access ladder for ease of operator entry and exit.
Excavator_PC1250_literature link__08.eps

Enhanced hydraulic system

Smarter hydraulics with increased flow at higher pressures and new EPC valves improve machine logic to match working loads.* New filter by-pass sensors monitor system health and alert operators if clogging conditions exist.
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Improved operator awareness

Standard KomVision -camera system provides a bird’s-eye view of the surrounding area for improved operator situational awareness.* Komtrax Plus enables expanded monitoring of the fleet via satellite and wireless LAN.

Specifications for PC1250SP-11

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US system Metric
Engine
Model Komatsu SAA6D170E-7*
Type Water-cooled, 4-cycle, direct injection
Aspiration Turbocharged, aftercooled, cooled, EGR
Number of cylinders 6
Bore 170 mm
Stroke 170 mm
Piston displacement 23.15 L
Governor All-speed, electronic

Horsepower:
SAE J1995 - Gross 578 kW
ISO 9249 / SAE J1349 - Net 565 kW
Rated rpm 1 800 rpm
Hydraulic fan at maximum speed - Net 519 kW
Governor All-speed control, electronic
Fan drive method for radiator cooling Hydraulic

*EPA Tier 4 Final emissions certified

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 494 L/min
Maximum flow swing 1 x 600 L/min
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 31.4 MPa 320 kg/cm²
Travel circuit 34.3 MPa 350 kg/cm²
Swing circuit 29.4 MPa 300 kg/cm²
Pilot circuit 3.1 MPa 33 kg/cm²
Hydraulic cylinders:
Cylinder / Number of cylinders bore x stroke x rod diameter
Boom / 2 225 x 2 390 x 160 mm
Arm / 1 250 x 2 435 x 170 mm
Bucket:
Standard / 2 160 x 1 825 x 115 mm
SP / 2 160 x 1 950 x 115 mm
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 686 kN
70 000 kgf
Gradeability 70%, 35°
Maximum travel speed:
High 3.3 kph
Low 2.3 kph
Service brake Hydraulic lock
Parking brake Oil disc brake
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 406.1 kN-m
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
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 1 360 L
Coolant 142 L
Engine 86 L
Final drive, each side 21 L
Swing drive 2 x 20 L
Hydraulic tank 670 L
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)
Exterior – ISO 6395 109.9 dB(A)
Operator – ISO 6396 68.5 dB(A)
Operating Weight (Approximate)

Mass Excavation:
PC1250SP-11: Operating weight, including 7 800 mm boom, 3 400 mm arm, 6.7 m³ bucket, track roller guard, operator, lubricant, coolant, full fuel tank, and standard equipment.

PC1250SP-11
Double-Grouser Shoes Operating Weight Ground Pressure (ISO 16754)
700 mm 118 164 kg 1.54 kg/cm2
1 000 mm 120 864 kg 1.10 kg/cm2

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 Operating Weight Ground Pressure (ISO 16754)
28 in 259,960 lbs. 21.85 psi
39.4 in 265,900 lbs. 15.64 psi

ENGINE

  • Automatic engine warm-up system
  • Dry type air cleaner, double element
  • Engine, Komatsu SAA6D170E-7
  • Fuel pre-filter with water separator
  • Variable speed cooling fan, hydraulic drive, reversible

ELECTRICAL SYSTEM

  • Alternator, 24 V/90 A
  • Auto idle shutdown (programmable)
  • Auto-decelerator
  • Batteries, 2 x 12 V/220 Ah
  • Battery disconnect switch w/lock out - tag out
  • Circuit breaker
  • Lever lock auto-lock
  • Power supply, 12 V
  • Starting motor, 2 x 24 V/11k
  • Step light with timer
  • Service isle light
  • Working lights, 2 boom, 2 cab roof front, 1 right front, 2 LED rear facing

GUARDS AND COVERS

  • Cab guards
    -Bolt-on top guard, OPG Level 2 (ISO 10262)
  • Strengthened revolving frame underguards
  • Revolving frame swivel guard
  • Track guiding guards, ends and center
  • Travel motor guard
  • Radiator and oil cooler dustproof net

HYDRAULIC SYSTEM

  • 2 speed travel with auto shift
  • Power+ work mode
  • Automatic swing holding brake
  • Fully hydraulic, with Open-Center Load-Sensing and engine speed sensing
    (Pump and engine mutual control system)
  • Heavy lift mode
  • In-line high pressure pump outlet filters
  • Pressure Proportional Control (PPC) hydraulic control system
  • Shockless control system for boom
  • Two-mode setting for boom

OPERATOR ENVIRONMENT

  • 2 x 12V power ports in cab
  • Auto climate control, A/C with defroster
  • AM/FM radio
  • Auxiliary input (3.5 mm jack)
  • Cab with opening front window
  • Engine shut down secondary switch
  • High back air suspension seat, heated
  • KomVision, 4 camera system
  • Large high resolution LCD color monitor
  • Lock lever
  • Mirrors (RH,LH)
  • Rear & Side view monitor system
  • Seat belt, retractable, 75 mm
  • Washable cab floor mat

OTHER EQUIPMENT

  • Counterweight, 16620 kg
  • Electric priming pump for fuel system
  • Equipment Management Monitoring System
  • Grease gun, with hose reel and air power pump
  • Hand rails & guard rails
  • Horn, air
  • KOMTRAX 5.0 with KOMTRAX Plus
  • One-touch engine oil drainage
  • Preventive Maintenance (PM) service connector
  • Tie off points on boom & arm
  • Rear reflector
  • Seat belt indicator
  • Slip-resistant plates
  • Travel alarm
  • Vandalism protection locks
  • Wide walkways

PC1250SP-11 UNDERCARRIAGE

  • Carrier rollers, 3 (Each side)
  • Hydraulic track adjusters (Each side)
  • Track rollers, 8 (Each side)
  • Track shoes, 700 mm double grouser

ENGINE

  • Automatic engine warm-up system
  • Dry type air cleaner, double element
  • Engine, Komatsu SAA6D170E-7
  • Fuel pre-filter with water separator
  • Variable speed cooling fan, hydraulic drive, reversible

ELECTRICAL SYSTEM

  • Alternator, 24 V/90 A
  • Auto idle shutdown (programmable)
  • Auto-decelerator
  • Batteries, 2 x 12 V/220 Ah
  • Battery disconnect switch w/lock out - tag out
  • Circuit breaker
  • Lever lock auto-lock
  • Power supply, 12 V
  • Starting motor, 2 x 24 V/11k
  • Step light with timer
  • Service isle light
  • Working lights, 2 boom, 2 cab roof front, 1 right front, 2 LED rear facing

GUARDS AND COVERS

  • Cab guards
    -Bolt-on top guard, OPG Level 2 (ISO 10262)
  • Strengthened revolving frame underguards
  • Revolving frame swivel guard
  • Track guiding guards, ends and center
  • Travel motor guard
  • Radiator and oil cooler dustproof net

HYDRAULIC SYSTEM

  • 2 speed travel with auto shift
  • Power+ work mode
  • Automatic swing holding brake
  • Fully hydraulic, with Open-Center Load-Sensing and engine speed sensing
    (Pump and engine mutual control system)
  • Heavy lift mode
  • In-line high pressure pump outlet filters
  • Pressure Proportional Control (PPC) hydraulic control system
  • Shockless control system for boom
  • Two-mode setting for boom

OPERATOR ENVIRONMENT

  • 2 x 12V power ports in cab
  • Auto climate control, A/C with defroster
  • AM/FM radio
  • Auxiliary input (3.5 mm jack)
  • Cab with opening front window
  • Engine shut down secondary switch
  • High back air suspension seat, heated
  • KomVision, 4 camera system
  • Large high resolution LCD color monitor
  • Lock lever
  • Mirrors (RH,LH)
  • Rear & Side view monitor system
  • Seat belt, retractable, 3" 
  • Washable cab floor mat

OTHER EQUIPMENT

  • Counterweight, 36,640 lb 
  • Electric priming pump for fuel system
  • Equipment Management Monitoring System
  • Grease gun, with hose reel and air power pump
  • Hand rails & guard rails
  • Horn, air
  • KOMTRAX 5.0 with KOMTRAX Plus
  • One-touch engine oil drainage
  • Preventive Maintenance (PM) service connector
  • Tie off points on boom & arm
  • Rear reflector
  • Seat belt indicator
  • Slip-resistant plates
  • Travel alarm
  • Vandalism protection locks
  • Wide walkways

PC1250SP-11 UNDERCARRIAGE

  • Carrier rollers, 3 (Each side)
  • Hydraulic track adjusters (Each side)
  • Track rollers, 8 (Each side)
  • Track shoes, 27.6" double grouser

GUARDS AND COVERS

  • Cab guards
    -Full front guard, OPG Level 2 (ISO 10262)

OPERATOR ENVIRONMENT

  • Hydraulically operated access stairway
  • Hydraulic operated access stairway Field Installation Kit

UNDERCARRIAGE

  • PC1250SP-11
    —1000 mm double grouser track shoes
    Track roller guard (Full length)

OTHER

  • Boom cylinders only

WORK EQUIPMENT

  • Booms
    PC1250SP-11
    —7800 mm SP boom assembly
  • Arms
    PC1250SP-11
    —3400 mm SP arm assembly

GUARDS AND COVERS

  • Cab guards
    -Full front guard, OPG Level 2 (ISO 10262)

OPERATOR ENVIRONMENT

  • Hydraulically operated access stairway
  • Hydraulic operated access stairway Field Installation Kit

UNDERCARRIAGE

  • PC1250SP-11
    —39.4" double grouser track shoes
    Track roller guard (Full length)

OTHER

  • Boom cylinders only

WORK EQUIPMENT

  • Booms
    PC1250SP-11
    —25'7"SP boom assembly
  • Arms
    PC1250SP-11
    —11'2" SP arm assembly
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Gallery

  • Excavator_PC1250SP-11_DelHur_Texas_KMoncini_191115_Komatsu_PC1250-11_204.jpg
  • Excavator_PC1250SP-11_DelHur_Texas_KMoncini_191115_Komatsu_PC1250-11_099.jpg
  • Excavator_PC1250SP-11_White Forest_KMoncini_191030_PC1250SP-11_HD785_White For_6649 (1).jpg

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