Used Hyundai 305 Excavator

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Detailed Introduction of Hyundai R305 Series Excavator

The HYUNDAI 305 generally refers to the Hyundai R305LC series (the most mainstream models are R305LC-9T and the upgraded new-generation R305LVS), a 30-ton class medium crawler excavator developed and produced by Hyundai Construction Equipment under Hyundai Heavy Industries Group. It is positioned as a heavy-duty versatile construction machine for medium and high-intensity working scenarios, balancing power, fuel efficiency, durability and operation comfort.

1. Core Specifications

Item	Parameter
Operating Weight	30,200 – 31,500 kg (varies with configuration)
Engine	Cummins QSB6.7 diesel engine, compliant with Tier 3/Stage IIIA (Tier 4 Final/Stage V for Europe/North America versions)
Rated Net Power	196 kW (263 hp) at 1,900 rpm
Max Torque	1,160 N·m at 1,500 rpm
Standard Bucket Capacity	1.44 – 1.71 m³
Max Digging Depth	6,730 mm (standard boom/stick); up to 7,500 mm for extended boom configuration
Max Digging Reach	10,200 mm (standard); up to 11,100 mm for extended configuration
Max Bucket Breakout Force	198 kN
Max Arm Digging Force	156 kN
Swing Speed	10.2 rpm
Travel Speed	3.1 – 5.2 km/h
Gradeability	35° (70%)

2. Performance & Structural Features

Powertrain System

It is equipped with Hyundai’s exclusive Computer Aided Power Optimization (CAPO) system, which automatically matches engine output and hydraulic pump flow according to real-time working load, reducing fuel consumption by 8-12% compared with the previous generation without sacrificing power output. The Cummins electronic fuel injection engine has strong low-speed torque, excellent adaptability to high altitude, high temperature and dusty working conditions, and low failure rate under long-term heavy load operation.

Hydraulic System

Adopts negative flow control load-sensing hydraulic system, with precise, smooth and responsive operation feedback. The main valve, hydraulic pump and motor are all supplied by international first-tier brands, with low internal leakage and strong overload resistance. The boom and arm are equipped with regeneration valves, which speed up the movement of the working device: the standard digging cycle time is only 9.8 seconds, greatly improving operation efficiency.

Durability Design

The whole machine frame, boom and stick are made of high-strength alloy steel, welded by robotic process, and have passed strict stress relief and fatigue tests, which can withstand continuous impact in heavy-duty scenarios such as mining and quarrying. The undercarriage adopts reinforced X-shaped central frame, heavy-duty track rollers and high-strength wear-resistant track shoes, and the service life of wearing parts is 20% longer than similar products in the industry.

3. Operator Comfort & Safety

The cab meets ROPS/FOPS international safety certification, with strong rollover and impact resistance.
It is equipped with a fully adjustable high-back shock-absorbing seat, ergonomic joystick with only 15N operating force, which greatly reduces long-term operation fatigue.
The sealed pressurized cab has an operating noise as low as 72dB(A), equipped with automatic constant temperature air conditioning, Bluetooth audio, and an 8-inch high-definition monitor that displays real-time working parameters, fault codes and rear-view camera images.
All-round glass design provides 360° panoramic vision, eliminating operation blind spots. Standard safety configurations also include hydraulic system overpressure protection, engine overheat automatic shutdown, travel/swing alarm and one-key emergency stop.

4. Maintenance & Cost Efficiency

All daily maintenance points are arranged in ground-accessible positions, no need to climb the upper frame for routine inspection of oil level, filters and coolant.
Extended wearing parts replacement cycle: engine oil and filter replacement cycle is 500 working hours, hydraulic oil replacement cycle is 5,000 working hours, greatly reducing maintenance time and cost.
Hyundai provides a standard 2-year/3,000 working-hour whole machine warranty, and a global after-sales network with sufficient spare parts supply in most regions.

5. Application Scenarios

The R305 series is suitable for a wide range of working scenarios, and can be equipped with optional attachments such as crushing hammer, ripper, grapple, quick coupler to meet diversified needs:

Infrastructure construction: highway/railway subgrade excavation, bridge foundation construction, tunnel excavation
Mining and quarrying: ore stripping, gravel loading, rock excavation
Urban construction: foundation pit excavation, municipal pipeline laying, demolition work
Water conservancy projects: reservoir dredging, river excavation, embankment construction
Port and forestry: bulk cargo handling, timber loading and unloading

Compared with other 30-ton class excavators, the Hyundai R305 has obvious cost performance advantages: its purchase cost is 10-15% lower than European and American brands, and the comprehensive fuel consumption under standard working conditions is only 18-22L per hour, which is 5-10% lower than similar products, making it a cost-effective choice for medium and large construction teams.

Non flooded

No accident

Original product

Used Hyundai 305 Excavator

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