Description of excavator:
Modern, hydraulic excavators come in a wide variety of sizes. The smaller ones are called mini or compact excavators. For example, Caterpillar's smallest mini-excavator weighs 2,060 pounds (930 kg) and has 13 hp; their largest model is the largest excavator available (a record previously held by the Orenstein & Koppel RH400) the CAT 6090, it weighs in excess of 2,160,510 pounds (979,990 kg), has 4500 hp and has a bucket size of around 52.0 m³ depending on bucket fitted.
Engines in hydraulic excavators usually just drive hydraulic pumps; there are usually 3 pumps: the two main pumps are for supplying oil at high pressure (up to 5000 psi) for the arms, swing motor, track motors, and accessories, and the third is a lower pressure (700 psi) pump for Pilot Control, this circuit used for the control of the spool valves, this allows for a reduced effort required when operating the controls.
The two main sections of an excavator are the undercarriage and the house. The undercarriage includes the blade (if fitted), tracks, track frame, and final drives, which have a hydraulic motor and gearing providing the drive to the individual tracks, and the house includes the operator cab, counterweight, engine, fuel and hydraulic oil tanks. The house attaches to the undercarriage by way of a center pin. High pressure oil is supplied to the tracks' hydraulic motors through a hydraulic swivel at the axis of the pin, allowing the machine to slew 360° unhindered.
Specifications of excavator:
Working Range
| Arm length | 1.90 m | 2.40 m | 2.94 m |
|---|---|---|---|
| Boom length | 5.70 m | ||
| A ( Max.digging radius ) | 8 960 mm | 9 420 mm | 9 900 mm |
| B ( Max.digging depth ) | 5 610 mm | 6 110 mm | 6 650 mm |
| C ( Max.digging height ) | 9 160 mm | 9 410 mm | 9 610 mm |
| D ( Max.dumping height ) | 6 330 mm | 6 590 mm | 6 810 mm |
| E ( Max.vertical wall cut depth ) | 5 010 mm | 5 500 mm | 5 960 mm |
| F ( Min.front swing radius ) | 3 580 mm | 3 600 mm | 3 600 mm |
| G ( Rear end swing radius ) | 2 750 mm | ||
Dimensions
| SH210-5 (SH210LC-5) | |||
|---|---|---|---|
| Arm length | 1.90 m | 2.40 m | 2.94 m |
| A Overall length | 9 490 mm | 9 480 mm | 9 400 mm |
| B Length from center of machine (to arm top) | 6 770 mm | 6 760 mm | 6 680 mm |
| C Upper structure rear end radius | 2 720 mm | 2 720 mm | 2 720 mm |
| D Center to center of wheels | 3 370 mm (3 660 mm) | 3 370 mm (3 660 mm) | 3 370 mm (3 660 mm) |
| E Overall track length | 4 180 mm (4 470 mm) | 4 180 mm (4 470 mm) | 4 180 mm (4 470 mm) |
| F Overall height | 3 090 mm | 3 190 mm | 2 970 mm |
| G Clearance height under upper structure | 1 040 mm | 1 040 mm | 1 040 mm |
| H Shoe lug height | 26 mm | 26 mm | 26 mm |
| I Cab height | 2 940 mm | 2 940 mm | 2 940 mm |
| J Upper structure overall width | 2 770 mm | 2 770 mm | 2 770 mm |
| K Width from center of machine (left side) | 1 430 mm | 1 430 mm | 1 430 mm |
| L Width from center of machine (right side) | 1 340 mm | 1 340 mm | 1 340 mm |
| M Track gauge | 2 200 mm (2 390 mm) | 2 200 mm (2 390 mm) | 2 200 mm (2 390 mm) |
| N Overall width | 2 800 mm (2 990 mm) | 2 800 mm (2 990 mm) | 2 800 mm (2 990 mm) |
| O Std.Shoe width | 600 mm | 600 mm | 600 mm |
| P Minimum ground clearance | 440 mm | 440 mm | 440 mm |
| Q Handrail height | 2 960 mm | 2 960 mm | 2 960 mm |