Used Komatsu 360-8 Excavator

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Here is a comprehensive introduction to the Komatsu PC360-8 (often referred to as the 360-8 or PC360LC-8) hydraulic excavator in English.

Komatsu PC360-8 / PC360LC-8 Hydraulic Excavator: A Detailed Overview

The Komatsu PC360-8 is a 36-tonne class hydraulic excavator that formed a key part of Komatsu’s Dash 8 series. Renowned for its powerful performance, exceptional fuel efficiency, advanced hydraulics, and operator comfort, this machine was engineered to excel in heavy construction, quarrying, mining, demolition, and large-scale infrastructure projects. The “LC” designation (PC360LC-8) stands for Long Carriage, featuring an extended undercarriage for enhanced stability and lifting capacity.

1. Engine and Emissions

At the heart of the PC360-8 lies a Komatsu-designed, high-performance, low-emission engine.

Model: Komatsu SAA6D114E-3
Type: Water-cooled, 4-cycle, direct-injection, turbocharged, aftercooled diesel engine
Cylinders: 6
Displacement: 8.27 litres
Net Power:
- 202 kW / 271 HP @ 1,950 rpm (ISO 9249)
- 202 kW / 275 PS @ 1,950 rpm (SAE J1349)
Emissions Compliance: EPA Tier 3 / EU Stage IIIA equivalent

The engine incorporates Komatsu’s ecot3 technology, which combines a high-pressure common rail fuel injection system, cooled exhaust gas recirculation (EGR), a variable geometry turbocharger (VGT), and advanced electronic control. This results in significantly lower nitrogen oxide (NOx) and particulate matter (PM) emissions, coupled with a reduction in fuel consumption of up to 10% compared to its Dash 7 predecessor.

2. Advanced Hydraulic System

The hydraulic system is engineered for powerful, fast, and precise simultaneous operations.

System Type: Komatsu HydrauMind (Hydraulic Mechanical Intelligence New Design) closed-centre load sensing system (CLSS).
Main Pumps: Two variable-displacement axial piston pumps for implement circuits, plus a gear pump for the pilot circuit.
Maximum Oil Flow: 2 × 328 L/min
Relief Valve Pressure:
- Implement circuits: 37.3 MPa (380 kg/cm²)
- Travel circuit: 37.3 MPa (380 kg/cm²)
- Swing circuit: 29.0 MPa (296 kg/cm²)
Hydraulic Tank Capacity: 188 litres

The system allows the operator to perform compound motions without a drop in speed. The pump flow is controlled based on joystick stroke and load sensing, which optimises engine and pump output. Enhanced arm regeneration circuits, a swing priority valve, and a boom holding valve improve efficiency, reduce cycle times, and provide excellent controllability.

3. Structure and Durability

The PC360-8 is built with a reinforced, high-durability structure designed to withstand severe job site conditions.

Boom and Arm: Constructed from high-tensile-strength steel plates with thick-walled, large cross-sectional box structures. Internal baffle plates minimise torsional stress. Reinforced around the foot pin and arm nose.
Undercarriage (PC360LC-8):
- Track Shoes: Triple-grouser, 600 mm (standard), with options for 700 mm or 800 mm.
- Track Frame: Rugged, press-formed track frames with large-diameter track rollers and carrier rollers.
- Track Rollers: 9 per side (LC version), sealed and lubricated.
- Swing Circle: Large-diameter single-row shear-type ball bearing swing circle with induction-hardened inner race, supported by an integral swing brake.
Boom Cylinder Guard: Available as an option for quarry and demolition applications.
Counterweight: 5,300 kg, securely bolted to the frame.

4. Operator Cab – Comfort and Safety

The cab on the PC360-8 is a pressurised, viscous-damped mounted unit that significantly reduces noise and vibration.

ROPS/FOPS: Roll-Over Protective Structure (ISO 12117-2) and Falling Object Protective Structure (Level 1) certified.
Interior Sound Level: A low 69 dB(A) (dynamic, ISO 6396).
Air Conditioning: High-capacity automatic climate control with 15 air vents.
Seat: Fully adjustable, high-back air suspension seat with headrest and seat belt. Joystick consoles are integrated and adjust with the seat.
Multi-Function Monitor: A large 7-inch high-resolution colour LCD monitor (TFT-LCD) displays machine status, maintenance alerts, rear-view camera image, and KOMTRAX data. It offers 25 languages for global use.
Joysticks: Proportional pressure control (PPC) levers with low-effort, short-stroke operation. Auxiliary function buttons are integrated into the right joystick.
Visibility: Large glass areas with a narrow front window pillar, standard right-side and rear-view cameras, and optional 270-degree camera system for improved safety.

5. Advanced Technology and Maintenance

KOMTRAXThe PC360-8 comes standard with Komatsu’s remote monitoring system, KOMTRAX. It transmits operational data (working hours, fuel consumption, location, maintenance alerts, and fault codes) via satellite and GPRS to a secure website, allowing fleet managers to maximise uptime and efficiency.

Equipment Management Monitoring System (EMMS)An onboard diagnostic system that continuously monitors all critical machine functions. It provides visual and audible warnings for abnormalities and records fault history for easy troubleshooting.

Ease of Maintenance

Wide-opening gull-wing style engine hood and side covers for excellent access.
Ground-level grouped lubrication points.
Extended engine oil and hydraulic oil change intervals (500 hours / 5,000 hours respectively).
Remote-mounted fuel filters, engine oil filter, and water separator.
Swing-out coolers (radiator, aftercooler, and oil cooler) for easy cleaning.
Electric fuel priming pump.

6. Specifications Table (PC360LC-8)

Specification	Value
Operating Weight (with standard 3.2 m boom, 2.2 m arm, 1.86 m³ bucket, 600 mm shoes)	35,570 kg
Bucket Capacity (Heaped, standard)	1.48 – 2.00 m³ (up to 2.20 m³ for light materials)
Transport Length (overall)	11,170 mm
Transport Width (with 600 mm shoes)	3,190 mm
Transport Height (to top of cab)	3,300 mm
Tail Swing Radius	3,460 mm
Track Length (on ground)	4,050 mm
Ground Pressure (with 600 mm shoes)	67.5 kPa (0.69 kg/cm²)
Swing Speed	9.5 rpm
Travel Speed (Low / High)	3.2 / 5.5 km/h
Gradeability	70% (35°)
Maximum Digging Depth	7,380 mm
Maximum Dumping Height	7,150 mm
Maximum Reach at Ground Level	11,110 mm
Bucket Digging Force (ISO)	232 kN (23,650 kgf)
Arm Crowd Force (ISO)	172 kN (17,540 kgf)
Fuel Tank Capacity	605 L
Engine Oil Capacity	28.5 L

(Note: Specifications vary depending on configuration, arm length, bucket, and track shoe width.)

7. Attachments and Versatility

The PC360-8 is a versatile platform that can be configured for numerous applications:

Buckets: General-purpose, heavy-duty rock, light-material, and ditch-cleaning buckets.
Arms: Multiple arm lengths available (2.2 m, 2.6 m, 3.0 m, etc.) to balance digging force and reach.
Quick Couplers: Hydraulic and mechanical pin-grabber couplers for rapid attachment changes.
Breakers and Crushers: The hydraulic system is pre-configured for auxiliary circuits (single/double-acting) and includes a breaker return filter.
Long-Reach / Demolition: Purpose-built configurations with extended booms and arms, demolition guards, and high-reach cabs.

8. Summary

The Komatsu PC360-8 represents a hallmark of reliability, productivity, and eco-conscious performance in the 36-tonne excavator class. Its combination of a powerful yet efficient Tier 3 engine, intelligent HydrauMind hydraulics, a durable structure, and a state-of-the-art cab made it a preferred choice for contractors seeking low operating costs and maximum uptime in demanding earthmoving applications worldwide.

Non flooded

No accident

Original product

Used Komatsu 360-8 Excavator

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