Doosan DX420LC-9C Large Crawler Excavator
1、Adopts global mature industrial design layout, strong overall compatibility with various construction accessories
2、Low comprehensive operation cost, stable fuel consumption control, suitable for long-term continuous high-load operation
3、Complete spare parts supply system, easy global procurement of wearing parts and maintenance parts
4、Reasonable body weight distribution, excellent anti-tipping performance on slope and complex terrain
5、One-stop export service supported by Jinan Tuiwa, including inspection, document processing and professional after-sales consultation
Product Overview
Doosan DX420LC-9C is a classic 42-ton large-scale crawler hydraulic excavator independently developed by Doosan, specially designed for heavy mining, quarry exploitation, large earthwork and infrastructure construction projects.
The whole machine is equipped with high-power original engine and intelligent optimized hydraulic system, which perfectly balances strong digging performance and economical fuel consumption. With reinforced overall structure, heavy-duty chassis configuration and comfortable operating cabin, it can adapt to high dust, rock stratum, muddy road and other harsh working environments. It is the mainstream preferred equipment for large engineering contractors, mining enterprises and engineering leasing companies all over the world. Supplied and exported by Jinan Tuiwa Import and Export Trade Co., Ltd., all machines are strictly inspected and tested before delivery to ensure stable and reliable working condition.
Core Product Parameters
| Specification Item | Parameter Details |
|---|---|
| Overall Operating Weight | 42000 kg |
| Standard Bucket Capacity | 1.9–2.3 m³ |
| Engine Model | Doosan Original DL08 |
| Rated Power | 257 kW (345 hp) @ 2000 rpm |
| Standard Bucket Digging Force | 278 kN |
| Boost Bucket Digging Force | 301 kN |
| Arm Digging Force (Standard) | 221 kN |
| Arm Digging Force (Boost) | 239 kN |
| Maximum Digging Depth | 7550 mm |
| Maximum Digging Height | 10920 mm |
| Swing Speed | 9.5 rpm |
| Travel Speed | 3.0–5.3 km/h |
| Ground Contact Pressure | 84 kPa |
Product Features & Advantages
Power System Advantage
Hydraulic System Advantage
Structural & Chassis Advantage
Cabin & Operation Advantage
Daily Maintenance Advantage
The layout of the whole machine is optimized, all maintenance parts such as engine filter, hydraulic oil filter and fuel filter are concentrated on the easy-to-access position. The large opening maintenance door is convenient for daily inspection, oil replacement and fault maintenance. It supports remote vehicle condition monitoring, realizes predictive maintenance, and effectively reduces equipment downtime.
Product Application Scenarios
Mining & Quarry Works: Open-pit mine overburden stripping, ore excavation, stone yard loading and material handling
Large Earthwork Project: Large site leveling, foundation pit excavation, river dredging and reservoir dam construction
Infrastructure Construction: Highway, railway, bridge foundation engineering, rock excavation and slope trimming
Port & Yard Operation: Port bulk cargo loading and unloading, large yard material stacking and handling
Heavy Demolition & Renovation: Large building demolition, concrete breaking, matched with breaker and other attachments for multi-purpose operation
Product Packaging & Transportation
Anti-rust and dust-proof treatment is carried out on the whole machine before shipment; the cab, hydraulic cylinder, pipeline and precision electronic components are wrapped with thickened waterproof and collision-proof film separately.
The main body can be transported as a whole or partially disassembled (boom and arm separated), suitable for flatbed truck and open-top container shipping, saving transportation space and cost.
Professional fixing, lashing and reinforcement are adopted to prevent shaking, collision and deformation during long-distance sea and land transportation.
Jinan Tuiwa Import and Export Trade Co., Ltd. provides one-stop service including space booking, customs declaration, commodity inspection and port delivery, and tracks the whole logistics process.
Company Strength Display
The company has a large outdoor storage yard and professional international trade team, familiar with the export customs clearance procedures of various countries. Products are exported to Southeast Asia, Africa, Middle East, Russia, Central Asia and other regions all year round. We can provide customers with equipment selection, parameter customization, accessory matching and after-sales technical consulting services, and have established long-term stable cooperative relations with global engineering and mining customers.
Customer Cases & Feedback
African Large Mining Project: The customer purchased multiple Doosan DX420LC-9C for mine overburden removal. The equipment runs continuously for a long time with low failure rate and obvious fuel-saving effect. The customer feedback that the machine is durable and perfectly adapted to local harsh mining conditions.
Middle East Quarry Project: The equipment is used for rock excavation and loading work. The strong digging force and reinforced structure easily cope with hard rock operation, with stable action and less later maintenance, which is highly praised by local quarry operators.
Russian Engineering Leasing Company: Long-term bulk purchase of Doosan large excavators from our company for engineering leasing. DX420LC-9C has stable performance, easy operation and high market recognition, with high repeat order rate, and the customer recognizes our supply capacity and after-sales service very much.
