Doosan 300 Large Crawler Excavator

Robust original Doosan hydraulic system ensures steady output for long-hour mining tasks of Doosan 300 excavator.
Fuel-saving genuine engine cuts daily running cost while retaining powerful digging performance for Doosan 300 digger.
Reinforced heavy-duty track chassis adapts muddy, rocky mine terrain for 30ton crawler excavator.
Upgrade cab with shock absorption improves operator comfort on all heavy construction excavator working sites.
High-strength digging arm boosts loading efficiency, widely favored in quarry & infrastructure construction projects.
Complete spare parts supply system from Jinan Tuiwa Import & Export shortens post-sale maintenance downtime of Doosan hydraulic equipment.

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Product Details

Product Overview

Doosan 300 Crawler Excavator is a reliable heavy-duty hydraulic digging machine designed for global construction and mining industries. As a mature model of Doosan heavy construction excavator series, Doosan 300 crawler excavator integrates decades of Korean manufacturing technology, combining outstanding digging force, stable hydraulic performance and flexible field adaptability to meet diversified operation needs of mine exploitation, road paving and earthmoving engineering. This 30ton crawler excavator is carefully assembled with original core assemblies, which helps it keep consistent working efficiency under continuous high-load operation. Many overseas contractors pick Doosan 300 digger as their core construction equipment thanks to its balanced performance and controllable maintenance cost. Compared with same-level competing hydraulic equipment, Doosan 300 optimizes engine matching logic to balance power output and fuel consumption, further expanding its applicable range in global construction market.

Doosan DH300LC-7 excavator working and static views, showing orange body, boom, bucket, and tracked undercarriage.jpg

Core Product Specifications

Item	Specific Data
Operating Weight	30000KG /30Ton
Rated Engine Power	190kW /255HP
Standard Bucket Capacity	1.4~1.6m³
Max Digging Depth	7250mm
Max Digging Reach	10650mm
Hydraulic Working Pressure	32MPa
Travel Speed	3.2~5.5km/h
Fuel Tank Volume	420L
Track Width	600mm

Doosan DH300LC-7 crawler excavator side and rear views, highlighting Doosan branding, model marking, and heavy-duty tracks.jpg

Product Features & Advantages

Original Doosan Hydraulic Configuration

All core hydraulic components of Doosan 300 crawler excavator adopt original Doosan factory fittings, with independent multi-way valve control structure to realize flexible adjustment of bucket, boom and track movement. The optimized oil circuit layout reduces internal oil loss, making this heavy construction excavator respond fast during frequent digging and loading. For users who run Doosan hydraulic equipment on long shifts, this mature hydraulic structure greatly lowers the risk of oil leakage and component failure.

High Efficiency Energy-Saving Engine System

Doosan 300 digger is equipped with genuine Doosan turbocharged diesel engine that passes international emission standard. The engine matches intelligent fuel injection module to adjust oil supply according to actual load of 30ton crawler excavator, avoiding unnecessary fuel waste under idle or low-load working status. In long-term quarry mining projects, this fuel control design can save over 12% daily fuel expense for machine owners.

Reinforced Wear-Resistant Working Device

Boom, arm and bucket of Doosan 300 crawler excavator are cast with high-strength wear-resistant steel plate, key stress points add thickened reinforcement board to resist impact from hard stone and rock during mining digging. Standard large-capacity bucket improves single-cycle loading volume, effectively raising overall construction progress for heavy construction excavator users.

Humanized Operating Cab Design

Sealed shock-absorbing driving cab of Doosan 300 digger is fitted with adjustable air-conditioner, anti-glare large-area glass and shock-absorbing suspension seat. This configuration cuts vibration transmission during rough-site operation of 30ton crawler excavator, reducing operator fatigue after all-day continuous work.

Application Scenarios

Doosan 300 crawler excavator is a versatile Doosan hydraulic equipment covering multiple industrial fields, which becomes the preferred heavy construction excavator for global engineering contractors.

Open-pit Mining & Quarry Work: Its powerful digging force and reinforced working device perfectly match stone exploitation, raw ore loading tasks, lots of mine investors purchase Doosan 300 digger to replace small-size digging machines for higher production output.
Highway & Municipal Infrastructure: In road foundation excavation, trench digging and slope trimming projects, the flexible track chassis of 30ton crawler excavator can adapt rugged construction ground, accelerating municipal engineering progress.
Land Reclamation & Earthmoving: Large bucket capacity helps Doosan 300 crawler excavator finish bulk soil shifting, farmland renovation and waste clearance efficiently in large-scale land improvement projects.
Demolition & Waste Recycling: With replaceable crushing hammer attachment, Doosan hydraulic equipment can complete building dismantling and construction garbage sorting, expanding secondary utilization space of Doosan 300 digger for recycling enterprises.

Packaging & Shipping

After strict pre-delivery inspection of Doosan 300 crawler excavator by Jinan Tuiwa Import & Export team, we adopt two mainstream transport schemes based on client’s destination port: bulk ship transportation and container shipment for heavy construction excavator. Before loading, critical vulnerable parts including hydraulic pipeline, cab glass and engine accessory of Doosan 300 digger are wrapped with anti-collision bubble film and fixed with wooden support to avoid collision damage during long-distance sea transit. All exposed metal surfaces of 30ton crawler excavator are coated with anti-rust protective grease to prevent seawater corrosion in ocean shipping. We will supply detailed loading photos, packing list and customs clearance documents of Doosan hydraulic equipment for every overseas buyer to smooth import formalities at destination customs.

Company Strength Showcase

As professional China-based heavy machinery exporter Jinan Tuiwa Import & Export Co.,Ltd, we have focused on global supply of used & new Doosan 300 crawler excavator and various heavy construction excavator over 8 years. Our company owns 3 large-scale machinery storage yards in Shandong Jinan, stocking more than 200 units of ready-to-ship Doosan hydraulic equipment including Doosan 300 digger, other Doosan series crawler excavator and mainstream brands construction machinery. We have obtained complete export qualification certificates including CE, ISO and customs filing certification, with mature QC inspection team testing every 30ton crawler excavator before delivery to guarantee machine performance matches international standard. Meanwhile, our long-term cooperative spare parts warehouse ensures quick supply of replacement accessories for post-sale maintenance of Doosan 300 crawler excavator for global clients.

Customer Case Studies & Feedback

Case1: Africa Ghana Quarry Client
A Ghana local quarry investor bought two units of Doosan 300 crawler excavator from Jinan Tuiwa Import & Export in 2025 for granite mining. After half-year field operation, the client feedback this Doosan 300 digger keeps stable daily output with low breakdown rate, much more cost-effective than local second-hand heavy construction excavator. He has signed repeat order for one extra 30ton crawler excavator in the next quarter.
Case2: Southeast Asia Thailand Municipal Contractor
Thailand municipal engineering company purchased three sets of Doosan hydraulic equipment including Doosan 300 crawler excavator for urban road renovation project. Their project manager commented that the fuel-saving engine of Doosan 300 digger effectively controlled construction operating cost, and our after-sale spare parts delivery helped them avoid long-time construction shutdown caused by component damage.
Case3: Middle East UAE Land Reclamation Project
UAE land development enterprise imported one Doosan 300 crawler excavator for coastal land filling work, they praised the machine’s excellent adaptability on muddy coastal ground, and recommended our heavy construction excavator products to surrounding local engineering partners after project completion.