AVN 700/800
Microtunneling
General Information
| Type | AVN 700 & 800 |
| Manufacturer | Herrenknecht |
| Year of Construction | 1990 |
| Weight cutterhead | 4 ton |
Drilling Particulars
| Pipe diameters (internal) | 600 mm- 1000 mm |
| Jacking pipe material | Concrete, steel, GRE |
| Alignment | Straight |
| Torque | 38 kNm |
| Drive length | Up to 200 m |
| Shaft dimensions | Launch shaft 6x4 m |
| Reception shaft 4 x 3 m |
