Komatsu Excavators PC290LC-11

PC290LC-11 Hydraulic Excavator

A long reach arm and boom combined with a heavy duty undercarriage provide extended reach with a stable and reliable platform.
Enhanced controller logic and new Tier 4 Final engine technology improve performance and fuel efficiency.

Engine
Model		Komatsu SAA6D107E-3*
Type		Water-cooled, 4-cycle, direct injection
Aspiration		Komatsu variable geometry turbocharged, aftercooled, cooled EGR
Number of cylinders		6
Bore	107 mm	4.21''
Stroke	124 mm	4.88''
Piston displacement	6.69 ltr	408 in³
Horsepower:		All-speed, electronic
SAE J1995 : Gross	159 kW	213 HP
ISO 9249/SAE J1349 : Net	147 kW	196 HP
Rated rpm		2050 rpm
Fan drive type		Mechanical
Governor		All-speed control, electronic.
*EPA Tier 4 Final emissions certified

Hydraulics System
Type . . HydrauMind (Hydraulic Mechanical Intelligence New Design) system, closed-center system with load sensing valves and pressure compensated valves
Number of selectable working modes		6
Main pump:
Type		Variable displacement piston type
Pumps for		Boom, arm, bucket, swing, and travel circuits
Maximum flow	479 ltr/min	126.5 U.S. gal/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	380 kgf/cm²/ 37.3 MPa	5,400 psi
Travel circuit	380 kgf/cm² / 37.3 MPa	5,400 psi
Swing circuit	295 kgf/cm²/ 28.9 MPa	4,190 psi
Pilot circuit	33 kgf/cm² / 3.2 MPa	470 psi
Hydraulic cylinders:
Number of cylinders	Bore x Stroke x Rod Diameter	Bore x Stroke x Rod Diameter
Boom / 2	140 mm x 1300 mm x 100 mm	5.5" x 51.2" x 3.9"
Arm / 1	150 mm x 1635 mm x 110 mm	5.9" x 64.3" x 4.3"
Bucket / 1	140 mm x 1009 mm x 100 mm	5.5" x 39.7" x 3.9"

Drives & Brakes
Steering control		Two levers with pedals
Drive method		Hydrostatic
Maximum drawbar pull	249 kN / 25400 kg	56,000 lb
Gradeability	70%	35°
Maximum travel speed: (Auto-Shift)
High	5.5 km/h	3.4 mph
Mid	4.1 km/h	2.5 mph
Low	3.0 km/h	1.9 mph
Service brake		Hydraulic lock
Parking brake		Mechanical disc brake

Swing System
Driven method		Hydrostatic
Swing reduction		Planetary gear
Swing circle lubrication		Grease-bathed
Service brake		Hydraulic lock
Holding brake/Swing lock		Mechanical disc brake
Swing speed		10.5 rpm
Swing torque	8889 kg•m	64,292 ft lbs

Undercarriage
Center frame		X-frame
Track frame		Box-section
Seal of track		Sealed track
Track adjuster		Hydraulic
Number of shoes		48 each side
Number of carrier rollers		2 each side
Number of track rollers		8 each side

Coolant and Lubricant Capacity (refilling)
Fuel tank	400 ltr	105.7 U.S. gal
Coolant	36 ltr	9.5 U.S. gal
Engine	23.1 ltr	6.1 U.S. gal
Final drive, each side	8.5 ltr	2.2 U.S. gal
Swing drive	7.2 ltr	1.9 U.S. gal
Hydraulic tank	132 ltr	34.9 U.S. gal
Hydraulic system	250 ltr	66.0 U.S. gal
DEF tank	23.0 ltr	6.07 U.S. gal

Operating Weight (approximate)
Operating weight, including 6150 mm 20'2" one-piece boom, 3200 mm 10'6" arm, SAE heaped 1.41 m³ 1.85 yd³ backhoe bucket*, rated capacity of lubricants, coolant, full fuel tank, operator, and standard equipment.
Shoes	700 mm	28"
Operating Weight	30570 kg	67,395 lb
Ground Pressure	0.54 kg/cm²	7.71 psi
Shoes	800 mm	31.5''
Operating Weight:	30950 kg	68,233 lb
Ground Pressure	0.48 kg/cm²	6.83 psi
Shoes	850 mm	33.5"
Operating Weight:	31141 kg	68,654 lb
Ground Pressure	0.45 kg/cm²	6.47 psi
Component Weights
Arm including bucket cylinder and linkage
3200 mm 10'6" arm assembly	1432 kg	3,157 lb
3500 mm 11'6" arm assembly	1504 kg	3,316 lb
One piece boom including arm cylinder
6150 mm 20'2" boom asssembly	2448 kg	5,397 lb
Boom cylinders x 2	231 kg	509 lb
Counterweight	5510 kg	12,148 lb
1.41 m³ 1.85 yd³ bucket - 48" width	1088 kg	2,399 lb