Portable boring and welding complex AVANTECHNO 611 is a more powerful version of AVANTCHNO 411. It is designed for  reconditioning of bores with diameter range from 62 to 600 mm (from 32 to 1000 mm with extra kits). Its specifications allow solving more complicated and non-standard tasks in heavy-duty machinery industries. Mobile boring complex AVANTECHNO 611B is a reduced-kit version of the machine and allow boring of openings with diameter range from 62 to 600 mm (from 32 to 1000 mm with extra kits), without welding functions.