Used Komatsu 300 Excavator

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Detailed Introduction to Komatsu PC300 Series Crawler Excavator

The Komatsu PC300 series is a class of 30-ton heavy-duty crawler excavators developed and produced by Komatsu Ltd., the Japan-headquartered global leader in construction and mining equipment. Designed to balance strong power, high fuel efficiency, extreme durability and low operating cost, it is one of the best-selling models in the 30-ton excavator segment worldwide. The latest generation currently on the market is the PC300LC-8M0 (for emerging markets) and PC300-11M0 (for markets with strict emission standards, compliant with EU Stage V / U.S. EPA Tier 4 Final / China National IV emission regulations).

1. Core Technical Specifications (Take PC300LC-11M0 as standard configuration)

Category	Parameters
Operating Weight	30,800 – 32,500 kg (varies by boom, arm and bucket configuration)
Engine	Komatsu proprietary SAA6D114E-6 turbocharged, intercooled 4-stroke diesel engine; displacement 8.27L; rated net power 192 kW / 257 hp at 2000 rpm
Bucket Capacity	1.4 – 2.3 m³, optional general-purpose bucket, rock bucket, abrasion-resistant bucket for different working conditions
Digging Performance	Max digging depth (standard boom/arm): 7380 mm; max digging radius: 10920 mm; max digging height: 10200 mm; bucket breakout force: 227 kN; arm digging force: 176 kN
Travel Performance	2-speed travel: high speed 5.5 km/h, low speed 3.2 km/h; max gradeability: 35° (70%); ground pressure (LC extended track version): 67 kPa, suitable for soft ground operation
Tank Capacity	Fuel tank: 590 L; hydraulic oil tank: 170 L; cooling system: 28 L
Optional Attachment Adaptation	Compatible with 140-155 mm diameter hydraulic breakers, grapples, rippers, quick couplers, etc.

2. Key Performance Features

(1) High Efficiency & Fuel Saving

Equipped with Komatsu patented HydrauMind closed-center load-sensing hydraulic system, which precisely matches engine power and hydraulic output according to actual load demand, reducing energy loss by more than 12% compared to the previous generation.
Three working modes are optional: Power mode (for heavy-duty excavation, loading operation), Economy mode (for light earthwork, reduces fuel consumption by 10-15%), Breaker mode (optimized hydraulic output for crushing operation). Automatic idle and auto-shutdown functions further reduce unnecessary fuel consumption during standby.
The high-pressure common rail fuel injection system, matched with EGR + DPF + SCR post-processing system, meets strict emission standards without sacrificing power output.

(2) Extreme Durability

The boom, arm and main frame are made of high-strength low-alloy steel, with reinforced ribs added at high-stress parts, passing 10,000 hours of extreme load fatigue tests.
The undercarriage components (track shoes, carrier rollers, idlers) are made of high-manganese wear-resistant steel, with sealed lubrication design, extending service life by 30% compared to同类 products.
The cutting edge of the bucket is made of hard alloy steel, which is replaceable, suitable for long-term operation in rock and abrasive working conditions.

(3) Intelligent & Comfortable Operation

Standard equipped with Komtrax remote monitoring system, which supports real-time checking of equipment location, working hours, fuel consumption, fault codes and maintenance reminders via web or mobile terminal, and supports anti-theft positioning.
The cab is certified by ROPS (Roll-Over Protective Structure) and FOPS (Falling Object Protective Structure), with sealed pressurized design, internal noise as low as 72 dB(A). It is equipped with fully adjustable air suspension seat, multi-zone automatic air conditioning, and low-effort pilot control joysticks, greatly reducing the fatigue of long-term operation.
7-inch high-definition color display, with standard rear-view camera, supports one-key switching of working parameters and fault query.

3. Applicable Scenarios

The PC300 series is widely used in:

Large-scale earthwork: road and railway subgrade construction, site leveling, foundation excavation for real estate projects
Mining and quarry operations: overburden stripping, ore and aggregate loading in small and medium-sized mines
Water conservancy projects: reservoir and dam construction, river dredging
Demolition operations: demolition of small and medium-sized buildings and concrete structures with hydraulic breakers
Special operations: forestry logging, municipal pipeline laying, etc. with customized attachments

4. Maintenance & After-sales Advantages

All daily maintenance points are designed to be accessible from the ground, no need to climb the upper frame, including oil filter, fuel filter, hydraulic oil filter, oil level gauge and coolant check point.
Long maintenance interval: engine oil replacement every 500 working hours, hydraulic oil replacement every 5000 working hours, pilot filter replacement every 1000 working hours, greatly reducing downtime.
Komatsu has a global after-sales service network, with sufficient original spare parts supply and professionally trained maintenance technicians, and the model has a very high second-hand residual value in the global construction machinery market.

Non flooded

No accident

Original product

Used Komatsu 300 Excavator

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