








Product Description
Proven performance meets reliable engineering in this 2021 Sany SY125C excavator, a 12-ton workhorse built to deliver consistent results on demanding jobsites. Powered by the robust Isuzu 4JJ1-XDJAG-01-C3 engine generating 73kW at 2000rpm, this machine combines durability with fuel efficiency through its water-cooled design and 2.999L displacement. With an impressive bucket digging force of 90.6kN and rod digging force of 57.2kN, it tackles tough excavation tasks with confidence.
Built to last through extended operational cycles, this excavator features a substantial 240L fuel tank and 150L hydraulic tank for prolonged work sessions. Key performance specifications include:
- Maximum digging depth: 5190mm with 7735mm reach
- Working weight: 12,450kg ensuring stability
- Bucket capacity: 0.55m³ (range 0.22-0.7m³)
- Travel speed: 5.5km/h (high) / 3.5km/h (low)
- Climbing ability: 70% grade capability
- Compact transport dimensions: 7280mm × 2550mm × 2890mm
Currently located in Hunan, China, this machine represents tested reliability from a manufacturer known for producing equipment that withstands rigorous daily use.
| Specifications | Value |
|---|---|
| No. | 1047690 |
| Tonnage (tons) | 12 |
| Working weight (kg) | 12450 |
| Bucket capacity (m³) | 0.22-0.7 (0.55) |
| power | Traditional power |
| manufacturer | Made in China |
| bucket | backhoe |
| Engine type | Isuzu 4JJ1-XDJAG-01-C3 |
| Rated power (kw/rpm) | 73/2000 |
| Cooling mode | water-cooling |
| Maximum torque (N.m) | 365/1600 |
| Displacement (L) | 2.999 |
| Ground specific pressure (Kpa) | 41.6 |
| Rotation speed (rpm) | 13.06 |
| Climbing ability (%) | 70 |
| Bucket digging force (kN) | 90.6 |
| Rod digging force (kN) | 57.2 |
| Travel speed (km/h) | 5.5/3.5 |
| Fuel Tank (L) | 240 |
| Hydraulic Tank (L) | 150 |
| Engine Oil changes (L) | 15 |
| Total transport length (mm) | 7280 |
| Total transport width (mm) | 2550 |
| Total transport height (mm) | 2890 |
| Full cab height (mm) | 2740 |
| Minimum ground clearance (mm) | 425 |
| Minimum turning radius of front working device (mm) | 2880 |
| Back end turning radius (mm) | 2205 |
| Onboard width (mm) | 2490 |
| Total track length (mm) | 3360 |
| Track gauge (mm) | 1990 |
| Track plate width (mm) | 500 |
| Track ground length (mm) | 2680 |
| Maximum height at minimum turning radius (mm) | 5905 |
| Number of sprockets (single side) (each) | 1 |
| Number of wheels (single side) (each) | 6 |
| Number of track plates (single side) (PCS) | 41 |
| Maximum digging radius (mm) | 7735 |
| Maximum digging depth (mm) | 5190 |
| Maximum excavation height (mm) | 7695 |
| Maximum unloading height (mm) | 5440 |
| Maximum vertical digging depth (mm) | 4720 |
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