Used Komatsu 300 Excavator

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Detailed Introduction to Komatsu 300 Excavator

Note: The "Komatsu 300 excavator" generally refers to the Komatsu PC300 series 30-ton class heavy-duty crawler excavator, a core product of Japan-based Komatsu Ltd., the world's leading construction equipment manufacturer. The latest mass-produced model is the PC300LC-11M0 (compliant with EU Stage V / US EPA Tier 4 Final emission standards), and its detailed specifications and features are as follows:

1. Core Technical Specifications (Standard Configuration)

Item	Parameter
Operating Weight	30,200 – 32,100 kg
Engine Model	Komatsu SAA6D114E-6 turbocharged intercooled diesel engine
Gross Power	187 kW (251 HP) @ 2,000 rpm
Bucket Capacity	1.4 – 2.3 m³ (customizable for different working conditions)
Max Digging Depth (standard boom)	7,380 mm
Max Digging Reach (standard boom)	10,920 mm
Max Bucket Digging Force	227 kN
Travel Speed	3.2 / 5.5 km/h (2 gears)
Swing Speed	10 rpm
Gradeability	35° (70% gradient)

2. Core Performance Advantages

Highly efficient power and hydraulic system: The proprietary Komatsu Hydraulic Matching System (KHMS) dynamically adjusts engine output and hydraulic flow distribution in real time, cutting unnecessary power loss by 15% compared to the previous-generation PC300-8 model, while maintaining strong digging and lifting performance. It supports 4 optional working modes: Power (P) mode for heavy-duty rock digging, Economy (E) mode for general construction to reduce fuel consumption, Lifting (L) mode for heavy cargo hoisting, and Breaker (B) mode for hydraulic hammer and attachment operations.
High durability for harsh scenarios: The reinforced X-shaped chassis and high-strength wear-resistant track assembly have 20% higher impact resistance than ordinary same-class models, extending undercarriage service life by more than 3,000 operating hours in rocky quarries or muddy construction sites. The working arm and bucket are made of high-tensile steel, with reinforced welding points at high-stress positions to avoid deformation under long-term heavy load.
Low emission compliance: The engine is equipped with a Komatsu selective catalytic reduction (SCR) system and diesel particulate filter (DPF), meeting the strictest global emission standards without sacrificing power output.

3. Operator Comfort & Safety

The ROPS (Roll-Over Protective Structure) and FOPS (Falling Object Protective Structure) certified cab adopts fully sealed pressurized design, with operating noise as low as 69 dB(A), 3 dB lower than most same-class competitors.
It is fitted with a high-back air-suspension seat with adjustable lumbar support, armrests and optional heating function, greatly reducing fatigue during long-hour continuous operation. The ergonomic short-travel joysticks require only low operating force, and the 7-inch high-definition LCD monitor displays real-time data including fuel level, hydraulic oil temperature, system pressure and fault codes for easy status checking.
Standard safety configurations include rearview camera, 360° surround view system (optional), emergency stop switch, travel alarm and anti-slip footrest, fully ensuring operator and on-site personnel safety.

4. Maintenance & Operating Cost Advantage

All routine maintenance points (engine oil filter, fuel filter, air filter, hydraulic oil return filter, etc.) are arranged at ground-accessible positions, eliminating the need for maintenance personnel to climb the upper frame for daily inspection and parts replacement, cutting routine maintenance time by 30%.
Extended service intervals: Engine oil and filter replacement every 500 operating hours, hydraulic oil replacement every 5,000 operating hours, hydraulic oil filter replacement every 1,000 operating hours, greatly reducing long-term operating costs.
It is compatible with Komatsu's exclusive Komtrax remote monitoring system, which transmits real-time data including equipment location, operating hours, fuel consumption and fault warnings to the fleet management terminal, helping users reduce unexpected downtime and realize intelligent fleet management.

5. Applicable Scenarios

The Komatsu 300 excavator is suitable for a wide range of operation scenarios:

Infrastructure construction: Road and bridge excavation, high-rise building foundation construction, tunnel excavation
Mining and quarrying: Open-pit mine stripping, ore loading, rock excavation
Water conservancy projects: River dredging, reservoir construction, pipeline laying
Special operations: Can be fitted with optional attachments including hydraulic breakers, grapples, rippers and augers to meet demands of forestry logging, demolition, bulk cargo handling and other customized operations.

Earlier generations including PC300-7 and PC300-8 are also widely used in emerging markets with less strict emission requirements, featuring simpler structure and lower acquisition cost. The PC300 series has been verified by millions of operating hours globally, and is supported by Komatsu's global after-sales service and spare parts supply network, making it one of the most cost-effective 30-ton excavator choices for construction contractors and mining operators.

Non flooded

No accident

Original product

Used Komatsu 300 Excavator

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