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Engineered with precision by Doosan's joint venture manufacturing, this 2019 DX88-9C mini excavator delivers 8-ton performance through advanced hydraulic architecture. Powered by a Yanmar 4TNV98-ZCV engine producing 44.4kW at 2100rpm, the machine combines a dual variable piston pump system with 2 × 70.4 L/min flow capacity to generate exceptional digging force: 5.55 tons bucket force and 4.05 tons rod force. The straight, naturally aspirated 4-cylinder configuration ensures reliable power delivery across demanding applications.
Hydraulic efficiency defines this model's technical superiority. Axial piston travel motors and optimized circuit design enable 11.5rpm rotation speed while maintaining 37kPa ground pressure for minimal surface disturbance. The 3820mm boom and 1700mm rod configuration achieve 6500mm maximum reach with 4170mm digging depth, supported by a compact 7970kg working weight. Dual-speed travel (4.9/3.1 km/h) and 1850mm back-end turning radius provide maneuverability in confined spaces.
Currently located in Luzhou, Sichuan, this unit features 135L fuel capacity and 106L hydraulic reservoir for extended operation cycles. Transport dimensions of 6300mm × 2340mm × 2680mm facilitate efficient logistics acr
| Specifications | Value |
|---|---|
| No. | 1045740 |
| Tonnage (tons) | 8 |
| Working weight (kg) | 7970 |
| Bucket capacity (m³) | 0.38 |
| Boom length (mm) | 3820 |
| Rod length (mm) | 1700 |
| power | Traditional power |
| manufacturer | Joint venture/Import |
| bucket | backhoe |
| Engine type | Yanmar 4TNV98-ZCV |
| Rated power (kw/rpm) | 44.4/2100 |
| Cylinder diameter × stroke (mm) | 98 x 110 |
| Number of cylinders (PCS) | 4 |
| Working form | Straight, naturally aspirated. |
| Ground specific pressure (Kpa) | 37 |
| Rotation speed (rpm) | 11.5 |
| Bucket digging force (kN) | 5.55ton |
| Rod digging force (kN) | 4.05ton |
| Travel speed (km/h) | High: 4.9 / Low: 3.1 |
| Type of walking hydraulic motor | Axial piston hydraulic motor |
| Maximum flow of main pump (l/min) | 2 x 70.4 |
| Main pump type | Variable piston pump |
| Fuel Tank (L) | 135 |
| Hydraulic Tank (L) | 106 |
| Total transport length (mm) | 6300 |
| Total transport width (mm) | 2340 |
| Total transport height (mm) | 2680 |
| Minimum ground clearance (mm) | 365 |
| Minimum turning radius of front working device (mm) | 1875 |
| Back end turning radius (mm) | 1850 |
| Onboard width (mm) | 2240 |
| Total track length (mm) | 2750 |
| Track gauge (mm) | 1850 |
| Track plate width (mm) | 450 |
| Total track width (mm) | 2300 |
| Maximum digging radius (mm) | 6500 |
| Maximum digging depth (mm) | 4170 |
| Maximum excavation height (mm) | 7270 |
| Maximum vertical digging depth (mm) | 2660 |
| Dodging plate width × height (mm) | 2300 x 430 |
| Maximum excavation radius of stop surface (mm) | 6370 |
| Maximum effective digging depth (mm) | 3835 |
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