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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