Hydraulic Rotary
Piles drilling machine FD 250 is a hydraulic rotary machine with a hydraulic circuit weighing 75t, mounted on a base machine type NEW HOLLAND E485 or CATERPILLAR 330D. The rotary head has a rotation speed of 7-27 rpm and a spin-off speed rotation of 115 rpm, with a maximum torque of 250 kNm.
The drilling machine can reach a maximum drilling depth of 48 m and a maximum pile diameter of 2000 mm (uncased) and 1500 mm (cased).
| Type | NEW HOLLAND E485 | CATERPILLAR 330D | |
| Engine | Type | ISUZU | CAT C9 3A |
| Power | 280 kW @ 2300 r.p.m | 250 kW @ 1800 r.p.m. | |
| Undercarriage | Total Length | 5675 | |
| Width (Closed-Open) | 3400 - 4600 mm | ||
| Shoes Widthpattini | 800 mm |
| Main Pumps | 2x370 l/min | 2x280 l/min |
| Auxiliary Pump | 1x195 l/min | 1x43 l/min |
| Working Pressure | 320 bar | 350 bar |
| Mast Dimensions | Section | 600x700 mm |
| Lenght | 20714 mm | |
| Mast Movement | Lateral | 8° |
| Backwards | 15° | |
| Onwards | 5° | |
| Pull-Down (Cylinder) | Pull | 250 kN |
| Push | 390 kN | |
| Rotary Head Stroke | 6100 mm |
| Max Torque | 250 kNm |
| Speed Rotation | 7-27 rpm |
| Spin-Off Speed Rotation | 115 rpm |
| Main | Max Pulling Force | 250 kN |
| Rope Diameter | 28 mm | |
| Max Rope Speed | 55 m/min | |
| Auxiliary | Max Pulling Force | 140 kN |
| Rope Diameter | 18 mm | |
| Max Rope Speed | 60 m/min |
| Max Drilling Depth | 48 m |
| Max Pile Diameter (Uncased) | 2000 mm |
| Max Pile Diameter (Cased) | 1500 mm |
| Max Casing Height | 6000 mm |
| Working (La – H - Lu) | 4600 – 22035 – 8700 mm |
| Transport (La- H - Lu) | 3400 – 3405 – 15595 mm |
| Weight | 75 ton |
