Komatsu PC120-6 Excavator

Working Range

Boom/Arm Length Boom 15’1″ (4600 mm) / Stick 6’11” (2100 mm)
Shipping Length Of Unit 24.91 ft in (7590 mm)
Shipping Height Of Unit 8.91 ft in (2715 mm)
Max Cutting Height 27.38 ft in (8345 mm)
Max Loading Height 19.38 ft in (5905 mm)
Max Reach Along Ground 25.58 ft in (7795 mm)
Max Vertical Wall Digging Depth 14.83 ft in (4520 mm)
Max Digging Depth 16.79 ft in (5115 mm)

Working Range (Boom/Arm Option 2)

Boom/Arm Length Boom 15’1″ (4600 mm) / Stick 8’2″ (2500 mm)
Shipping Length Of Unit 24.92 ft in (7595 mm)
Max Cutting Height 28.25 ft in (8610 mm)
Shipping Height Of Unit 8.91 ft in (2715 mm)
Max Loading Height 20.25 ft in (6170 mm)
Max Reach Along Ground 26.81 ft in (8170 mm)
Max Vertical Wall Digging Depth 16.21 ft in (4940 mm)
Max Digging Depth 18.12 ft in (5520 mm)

Working Range (Boom/Arm Option 3)

Boom/Arm Length Boom 15’1″ (4600 mm) / Stick 9’10” (3000 mm)
Shipping Length Of Unit 24.64 ft in (7510 mm)
Max Cutting Height 29.43 ft in (8970 mm)
Max Loading Height 21.45 ft in (6535 mm)
Shipping Height Of Unit 10.09 ft in (3075 mm)
Max Reach Along Ground 28.43 ft in (8665 mm)
Max Vertical Wall Digging Depth 17.59 ft in (5360 mm)
Max Digging Depth 19.74 ft in (6015 mm)

Komatsu PC120-6 Excavator Dimensions

Dimensions

Overall Length 24.9 ft in (7590 mm)
Height To Top Of Cab 8.91 ft in (2715 mm)
Width To Outside Of Tracks 8.08 ft in (2460 mm)
Length Of Track On Ground 9.03 ft in (2750 mm)
Tail Swing Radius 6.99 ft in (2130 mm)
Counterweight Clearance 2.81 ft in (855 mm)
Ground Clearance 1.32 ft in (400 mm)

Buckets

Reference Bucket Capacity 0.7 yd3 (0.5 m3)
Minimum Bucket Capacity 0.3 yd3 (0.2 m3)
Maximum Bucket Capacity 0.8 yd3 (0.6 m3)

Komatsu PC120-6 Undercarriage Specs

Undercarriage

Center frame X-frame
Track frame Box-section
Seal of track Sealed track
Track adjuster Hydraulic
Number of Shoes per Side 42
Number of Carrier Rollers per Side 2
Number of Track Rollers per Side 7
Track Gauge 86.6 in (2200 mm)
Shoe Size (Standart) 23.6 in (600 mm)
Shoe Size (Optional) 19.7 in (500 mm) / 27.6 in (700 mm) / 29.5 in (750 mm)

Engine Details

Number Of Cylinders 4
Engine Make Komatsu
Engine Model Komatsu SAA4D102E-2
Displacement 199 cu in (3.26 L)
Bore 3.74 in (95 mm)
Stroke 4.53 in (115 mm)
Gross Power 89 hp (66.2 kw)
Power Measured @ 2200 rpm
Governor All-speed, mechanical
Aspiration Turbocharged, and air to air aftercooled
Emission Standards US EPA Tier 2

Operational Specs

Max Operating Weight 27535 lb (12490 kg)
Max Drawbar Pull 22487 lb (10200 kg)
Drive Fully hydrostatic
Steering Two levers with pedals
Reduction System Planetary gear, double -reduction
Max Travel Speed (High) 3.1 mph (5.0 km/h)
Max Travel Speed (Mid) 2.1 mph (3.3 km/h)
Max Travel Speed (Low) 1.6 mph (2.5 km/h)
Service Brakes Hydraulic lock
Parking Brake Oil disc brake
Alternator 25 amps
Battery 2x 12V, 160Ah

Swing Mechanism

Driven by Hydraulic motor
Swing Speed 11.0 rpm
Swing Reduction Planetary double reduction
Swing Circle Lubrication Grease-bathed
Swing Lock Oil disc brake
Swing Torque 21627 lb ft (29.32 kNm)

Komatsu PC120-6 Hydraulic System

Hydraulic System

Type Closed-center Komatsu HydrauMind system with load-sensing valves and pressure-compensated valves
Main Pump Variable-displacement piston pump
Pump Flow Capacity 59.8 gal/min (226 L/min)
Relief Valve Pressure 5050 psi (34818 kPa)
Control Circuit Pump Gear pump
Travel Hydraulic motors 1x Axial piston motor with parking brake
Swing Hydraulic motors 1x Axial piston motor with swing holding brake

Komatsu PC120-6 Excavator Specifications

Service Refill Capacities

Fuel Tank Capacity 63.4 gal (240 L)
Engine Oil Capacity 4.6 gal (17.5 L)
Cooling System Capacity 4.8 gal (18.2 L)
Hydraulic System Capacity 26.5 gal (100 L)
Swing Drive Fluid Capacity 0.7 gal (2.5 L)
Final Drive Capacity (each side) 0.8 gal (3.0 L)
Comments: 2
  1. Wayne shaw

    Is the machine 12 or 24 volt

    1. David R. Ledford

      The Komatsu PC120-6 excavator operates with a 24-volt electrical system. Battery Setup: Two 12V batteries connected in series (12V + 12V = 24V)

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