2012 Caterpillar 312D
Product Description
Engineered with Caterpillar's proven C4.2 ACERT engine delivering 72kW at 2200 rpm, this 2012 312D excavator represents a benchmark in 12-ton class hydraulic performance. Water-cooled efficiency and a 4.25L displacement ensure consistent power delivery across demanding applications, while the advanced hydraulic system—featuring a 127 l/min main pump and 3.05 MPa working circuit—provides precise control for complex excavation tasks.
Built with a 12,920 kg working weight and 0.52 m³ bucket capacity, this machine combines robust construction with operational versatility. The 2800mm boom and 3000mm arm configuration achieve an impressive 8430mm maximum excavation radius and 5840mm digging depth. Bucket digging force reaches 96 kN, supported by 62 kN rod force for challenging ground conditions.
- Rotation speed: 12.4 rpm for efficient cycle times
- Dual travel speeds: 3.4/5.5 km/h for site mobility
- Climbing capability: 70% gradient (35°)
- Fuel capacity: 250L for extended operation
- Compact transport dimensions: 7590mm length × 2590mm width
Located in Kunming, Yunnan, this joint venture-manufactured unit exemplifies Caterpillar's engineering standards for medium-duty excav
| Specifications | Value |
|---|---|
| No. | 1050620 |
| Tonnage (tons) | 12 |
| Working weight (kg) | 12920 |
| Bucket capacity (m³) | 0.52 |
| Boom length (mm) | 2800 |
| Rod length (mm) | 3000 |
| Country of origin | Xuzhou |
| power | Traditional power |
| manufacturer | Joint venture/Import |
| bucket | backhoe |
| Engine type | C4.2ACERT |
| Rated power (kw/rpm) | 72/2200 |
| Cooling mode | water-cooling |
| Cylinder diameter × stroke (mm) | 102 x 130 |
| Displacement (L) | 4.25 |
| Rotation speed (rpm) | 12.4 |
| Climbing ability (%) | 70/35 ° |
| Bucket digging force (kN) | 96 |
| Rod digging force (kN) | 62 |
| Travel speed (km/h) | 3.4/5.5 |
| Maximum flow of main pump (l/min) | 127 |
| Traveling Hydraulic Circuit (Mpa) | 3.5 |
| Rotary Hydraulic Circuit (Mpa) | 2.3 |
| Hydraulic crushing pipeline is standard | no |
| Working Hydraulic Circuit (Mpa) | 3.05 |
| Pilot Oil Circuit (MPa) | 4.12 |
| Bucket cylinders - Number × diameter × stroke (mm) | 100 x 939 |
| Bucket rod cylinders - Number × diameter × stroke (mm) | 120 x 1197 |
| Boom cylinders - Number × diameter × stroke (mm) | 110 x 1015 |
| Fuel Tank (L) | 250 |
| Hydraulic Tank (L) | 150 |
| Engine Oil changes (L) | 19.5 |
| Coolant (L) | 17.9 |
| Hydraulic System (L) | 162(including fuel tank) |
| Total transport length (mm) | 7590 |
| Total transport width (mm) | 2590 |
| Total transport height (mm) | 2970 |
| Full cab height (mm) | 2760 |
| Counterweight ground clearance (mm) | 915 |
| Minimum ground clearance (mm) | 430 |
| Total track length (mm) | 3490 |
| Track gauge (mm) | 1990 |
| Track plate width (mm) | 500 |
| Total track width (mm) | 2590 |
| Track ground length (mm) | 2780 |
| Maximum digging depth (mm) | 5840 |
| Maximum excavation height (mm) | 8580 |
| Maximum unloading height (mm) | 6210 |
| Maximum vertical digging depth (mm) | 5160 |
| Bulldozer lift or depth (mm) | No bulldozer |
| Dodging plate width × height (mm) | No bulldozer |
| Maximum excavation radius of stop surface (mm) | 8430 |
| Maximum effective digging depth (mm) | 5640 |
Overview
No.1050620
Brand Name：
CaterpillarModel Number：
312DYear：
2012
Location：
Yunnan China
Pub Date：
Are you interested in this machine?
Please contact us
WhatsApp
Facebook
FAQs
WhatsApp