Synertrade specializes in complete excavators, loaders and their attachments.

DEVELON DX305HD Hydraulic Excavator
PRODUCT PARAMETERS
- Model: DX305HD
- Operating Weight: 30,500 kg
- Engine: Divanlen D108 (National IV, High-Performance Engine)
- Rated Power: 204 kW / 1,800 rpm
- Bucket Capacity: 1.85 m³
- Max. Digging Depth: 7,200 mm
- Max. Digging Height: 10,243 mm
- Hydraulic Flow: 2 × 252 L/min
- Track Width: 600 mm
- Track Length: 4,940 mm
DESCRIPTION
PRODUCTS DESCRIPTION
The DEVELON DX305HD hydraulic excavator is built for extreme working conditions, setting new benchmarks in the 30-ton class with its advanced power system, reinforced structural design, and intelligent operation technology. Powered by the Divanlen D108 high-performance engine, the DX305HD delivers 204 kW of maximum output—7% higher than the previous generation—while meeting strict National IV emission standards. Its EPOS-10I intelligent control system automatically adapts to working conditions through four operating modes, ensuring both efficiency and durability. Combined with a 1.85m³ ultra-large bucket and a maximum digging depth of 7,200mm, this machine excels in mining, large-scale earthmoving, and ultra-deep excavation projects. The heavy-duty undercarriage, wide 600mm tracks, and reinforced chassis increase stability and impact resistance, while fuel-saving technologies optimize hydraulic flow for over 10% better efficiency. Designed with operators in mind, the DX305HD integrates a 10-inch touchscreen, panoramic cameras, and a suspension seat for comfort and safety, making it an ideal choice for high-intensity environments.
PRODUCTS STRUCTURE

TECHNICAL PARAMETER
Item | Specification |
---|---|
Engine Model | Divanlen DLO8 |
Type | Inline |
Aspiration | Turbocharged |
No. of Cylinders | 6 |
Bore | 108 mm |
Stroke | 139 mm |
Rated Power | 204 kW / 1,800 rpm |
Travel Motor | Axial piston type ×2 |
Swing Brake | Wet multi-disc |
Main Pump Type | Variable piston pump |
Max. Flow | 2 × 288 L/min |
Swing System – Drive | Hydraulic drive |
Swing System – Reducer | Planetary gear reduction |
Swing System – Brake | Wet multi-disc |
Swing Speed | 10.9 rpm |
Hydraulic Circuit – Attachment | 350 kg/cm² |
Hydraulic Circuit – Travel | 350 kg/cm² |
Hydraulic Circuit – Swing | 300 kg/cm² |
Relief Valve Setting | 350 kg/cm² |
FAQ
Synertrade is the official distributor of Korea’s DEVELON full line of construction machinery, including excavators, wheel loaders, and rigid trucks. We also offer a wide range of genuine attachments such as buckets, hydraulic breakers, and grapples to meet diverse worksite needs.
Our equipment and attachments are primarily shipped via sea freight to ensure safe delivery to ports worldwide. For urgent or special orders, we can also arrange land or air transport. Full shipping tracking is provided for all orders.
Yes. We offer customization based on specific worksite requirements, including machine configurations, attachment selection, and additional features. Customers provide their requirements, and we deliver professional solutions and quotations.
The process is simple: choose the desired machine and attachments → contact our sales advisor to confirm specifications and pricing → sign the contract → arrange payment and sea shipment → delivery of equipment and attachments. Our team ensures smooth guidance at every step.
We provide DEVELON factory warranties, spare parts supply, maintenance guidance, and technical support. Whether it’s machine or attachment operation, maintenance, or troubleshooting, we ensure your equipment runs efficiently and reliably.