Product Description
Engineered with Sumitomo's proven hydraulic architecture, this 2016 SH210A5 delivers 117.3 kW of Isuzu AI-4HK1X turbocharged power through a sophisticated dual variable axial piston pump system. Maximum main pump flow reaches 422 l/min, supporting working hydraulic circuits rated at 36.8 MPa for consistent performance across demanding excavation cycles. The four-stroke, water-cooled diesel engine with intercooling provides reliable output at 1,800 rpm, backed by a 5.193-liter displacement designed for fuel efficiency and longevity.
Operating at 19,900 kg working weight, this 21-ton excavator achieves a maximum digging radius of 9,900 mm and depth of 6,650 mm. The 5,700 mm boom and 2,900 mm arm configuration optimize reach and breakout force, while the variable bucket capacity (0.5–1.1 m³) adapts to diverse material handling requirements. Ground-specific pressure of 45 kPa and 70% climbing ability ensure stability on challenging terrain.
Currently positioned in Hebei, this joint-venture manufactured machine represents Sumitomo's commitment to precision hydraulics and robust construction. Dual-speed travel (3.4/5.6 km/h) and 11.5 rpm rotation speed maintain productivity across multi-phase operations.
| Specifications | Value |
|---|---|
| No. | 1011699 |
| Tonnage (tons) | 21 |
| Working weight (kg) | 19900 |
| Bucket capacity (m³) | 0.5-1.1 |
| Boom length (mm) | 5700 |
| Rod length (mm) | 2900 |
| Country of origin | Xiamen (in Fujian Province) |
| power | Traditional power |
| manufacturer | Joint venture/Import |
| bucket | backhoe |
| Engine type | Isuzu AI-4HK1X (Tier 3) |
| Rated power (kw/rpm) | 117.3/1800 |
| Cooling mode | water-cooling |
| Cylinder diameter × stroke (mm) | 115 x 125 |
| Number of cylinders (PCS) | 4 |
| Displacement (L) | 5.193 |
| Working form | Four-stroke, direct injection, fully electronically controlled, turbocharged diesel engine with intercooling |
| Ground specific pressure (Kpa) | 45 |
| Rotation speed (rpm) | 11.5 |
| Climbing ability (%) | 70 |
| Bucket digging force (kN) | |
| Rod digging force (kN) | |
| Travel speed (km/h) | 3.4/5.6 |
| Rotary hydraulic motor type | Quantitative axial piston motor |
| Type of walking hydraulic motor | Variable axial piston motor |
| Maximum flow of main pump (l/min) | 422 |
| Traveling Hydraulic Circuit (Mpa) | 34.3 |
| Rotary Hydraulic Circuit (Mpa) | 29.4 |
| Main pump type | 2× variable axial piston pump |
| Working Hydraulic Circuit (Mpa) | 36.8 |
| Bucket cylinders - Number × diameter × stroke (mm) | 1-120-1010 |
| Bucket rod cylinders - Number × diameter × stroke (mm) | 1-140-1460 |
| Boom cylinders - Number × diameter × stroke (mm) | 2-120-1255 |
| Fuel Tank (L) | 410 |
| Hydraulic Tank (L) | |
| Engine Oil changes (L) | 23.1 |
| Coolant (L) | 26 |
| Total transport length (mm) | 9400 |
| Total transport width (mm) | 2800 |
| Total transport height (mm) | 2970 |
| Full cab height (mm) | 2940 |
| Counterweight ground clearance (mm) | 1040 |
| Minimum ground clearance (mm) | 460 |
| Minimum turning radius of front working device (mm) | 3600 |
| Back end turning radius (mm) | 2720 |
| Total track length (mm) | 4180 |
| Track gauge (mm) | 2200 |
| Track plate width (mm) | 600 |
| Total track width (mm) | 2800 |
| Track ground length (mm) | 3370 |
| Maximum digging radius (mm) | 9900 |
| Maximum digging depth (mm) | 6650 |
| Maximum excavation height (mm) | 9610 |
| Maximum unloading height (mm) | 6810 |
| Maximum vertical digging depth (mm) | 5960 |
| Bulldozer lift or depth (mm) | No bulldozer |
| Dodging plate width × height (mm) | No bulldozer |
| Maximum excavation radius of stop surface (mm) | 9730 |
| Maximum effective digging depth (mm) | 6470 |
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