Used Volvo 300D Excavator

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VOLVO EC300D Crawler Excavator Full Introduction

The Volvo 300D excavator generally refers to the Volvo EC300D, a 30-ton class medium crawler excavator developed and produced by Volvo Construction Equipment, a global top-tier construction machinery manufacturer. As a core model in Volvo's D-series excavator lineup, it balances high operating efficiency, ultra-low fuel consumption, exceptional durability and operator comfort, and is widely used in construction, mining, earthmoving, road building and municipal engineering markets worldwide.

1. Core Specifications

Parameter	Detailed Data
Operating Weight	29,400 – 32,300 kg
Engine Model	Volvo D7E EBE3 (in-house developed 6-cylinder inline diesel engine)
Rated Gross Power	170 kW (228 hp) @ 2000 rpm
Max Torque	870 Nm @ 1350 rpm
Emission Standard	Tier 3 / Stage IIIA
Bucket Capacity	1.0 – 1.75 m³
Max Digging Depth	7,270 mm
Max Digging Reach	10,690 mm
Bucket Breakout Force	187 kN
Arm Breakout Force	131 kN
Travel Speed	3.3 / 5.5 km/h
Max Swing Speed	11.7 rpm
Fuel Tank Capacity	470 L
Hydraulic Oil Capacity	280 L

2. Powertrain Performance

The EC300D is equipped with Volvo's self-developed D7E water-cooled, turbocharged, intercooled diesel engine, with industry-leading reliability and fuel economy:

Adopts high-pressure common rail fuel injection technology and optimized combustion chamber design, reducing comprehensive fuel consumption by 5%-10% compared with competitors of the same class.
Standard with auto idle and auto shutdown functions, which cuts engine speed automatically when the machine is idle for a set time, reducing unnecessary fuel loss.
Strong adaptability to extreme working conditions: it can operate stably under high altitude (up to 3000m above sea level), high temperature (up to 52℃) and low temperature (down to -40℃ with optional cold climate kit) environments.
Equipped with multi-stage fuel filtration system, which can adapt to low-quality diesel in emerging markets and reduce engine failure rate.

3. Hydraulic System

It is equipped with Volvo's advanced load-sensing hydraulic system with independent flow distribution technology, ensuring smooth and precise operation:

Dual main pumps provide a maximum total flow of 428 L/min, delivering strong power for heavy-load operations such as rock excavation and heavy material lifting.
Pressure compensation valves are installed in each working circuit, so that the speed of each action is not affected by load changes, ensuring highly coordinated compound actions (simultaneous swing, boom lifting and arm movement). It is especially suitable for fine operations such as pipeline laying and slope trimming.
Standard with ECO mode, which optimizes the matching of power output and hydraulic flow without compromising operating performance, further reducing fuel consumption during light load operations.

4. Operator Comfort

Volvo's industry-leading cab design greatly reduces long-term operation fatigue:

ROPS (Roll-Over Protective Structure) and FOPS (Falling Object Protective Structure) certified cab as standard, with sound insulation design, the interior noise is lower than 75 dB(A), reaching the level of passenger cars.
High-back air suspension seat with 8-way adjustment, lumbar support and optional heating function, which can adapt to operators of different heights and weights.
Ergonomic control layout, low-effort joysticks, fully automatic constant temperature air conditioning, multiple storage compartments, 12V/USB charging ports, and large anti-glare LCD monitor that displays real-time vehicle status, maintenance reminders and fault codes.
Ultra-wide field of view with all-round tempered glass, optional rear view camera to eliminate blind spots.

5. Safety & Maintainability

Safety Performance

Anti-slip walking platforms and steps with guardrails, ensuring the safety of maintenance personnel in rainy and snowy weather.
Standard with boom lowering prevention valve, arm holding valve and swing lock function, which can avoid accidental movement of the working device even if the hydraulic pressure is lost suddenly.
4 high-brightness LED working lights as standard, providing sufficient lighting for night operation, and standard reversing alarm.

Maintainability

All routine maintenance points are arranged at ground-accessible positions, and filters, oil and water separators can be replaced without climbing the vehicle, reducing daily maintenance time by 30%.
The boom, arm and undercarriage are made of high-strength wear-resistant steel, which has passed 10,000 hours of extreme heavy load fatigue test, and the service life is 20% longer than similar products.
Volvo's intelligent diagnostic system can monitor the operating status of the whole machine in real time, give early warning of potential faults, and cooperate with Volvo's global after-sales network to greatly reduce downtime.

6. Typical Applications & Optional Configurations

Applicable Scenarios

Earthmoving works: site leveling, foundation excavation, earth stacking
Mining & quarrying: ore loading, rock excavation, stripping works
Road & bridge construction: subgrade excavation, material loading, slope trimming
Municipal engineering: pipeline laying, old building demolition, urban greening construction
Water conservancy projects: river dredging, reservoir construction, embankment reinforcement