Machine Stable is an authorized distributor of the DEVELON brand under HD Hyundai.
ОПИСАНИЕ ПРОДУКЦИИ
The DEVELON DOOSAN DX75-7B Hydraulic Excavator is powered by a Yanmar 4TNV98 four-cylinder engine engineered for fuel-efficient performance and long-term operational durability. The engine delivers stable power output while maintaining optimized fuel consumption, making it suitable for urban construction, infrastructure development, and utility projects. Equipped with an advanced Load Sensing (LS) hydraulic system, the machine automatically adjusts hydraulic flow according to workload demand, significantly reducing energy loss while ensuring precise execution of every operational command. This intelligent hydraulic management enhances efficiency under variable working conditions.
The hydraulic system integrates internationally recognized premium components that have been extensively validated in global markets, ensuring high compatibility and balanced coordination across functions. The optimized control architecture provides smooth motion transitions and responsive handling. With a 0.30 m³ bucket capacity and a boom-priority design, operational speed is increased by more than 20 percent compared to conventional configurations, maximizing excavation productivity and breakout performance. The structural and hydraulic synergy enables consistent digging force output and improved cycle times for high-efficiency site operations.
СТРУКТУРА ПРОДУКЦИИ

ТЕХНИЧЕСКИЙ ПАРАМЕТР
| CATEGORY | ОПИСАНИЕ | ITEM | UNIT | VALUE |
|---|---|---|---|---|
| Engine | Engine Manufacturer | Engine Brand | - | DEVELON |
| Engine | Модель двигателя | Модель | - | 4TNV98 |
| Engine | Maximum Power | Horse Power | kW/rpm | 39/2100 |
| Engine | Emission Standard | Emission Certified | - | China Stage III |
| Engine | Number of Cylinders | No. of Cylinder | - | 4 |
| Engine | Диаметр и ход поршня | Диаметр и ход поршня | мм | 98 × 110 |
| Engine | Перемещение | Перемещение | cc | 3319 |
| Engine | Максимальный крутящий момент | Максимальный крутящий момент | kg·m/rpm | 18.74–20.4/1650 |
| Hydraulic | System Pressure (Working) | System Pressure (Front) | kg/cm² | 250 |
| Hydraulic | Main Pump Maximum Flow | Max Pump Flow (Main) | L/min | 158.4 |
| Hydraulic | Travel Speed | Travel Speed | km/hr | 2.9 / 4.5 |






