1975 Akkerman 480 Horizontal Tunnel Boring Machine
62 in Boring Auger, Rebuilt Akkerman 480B TBM; 58" base machine size, upskinned to 60" for C Wall 48" RCP and 60" Steel Casing Pipe Jacking. Equipped with Standard Dirt Bar, Adjustable Overcutters. Upgraded Steering System equipped with 3 Independently Actuated Steering Rams, Spherical Mounts. Upgraded to 60GPM Motor Valve, New Hydraulic Plumbing, Flow Controls in 2020. New Heavy Duty Drum Rollers, Inner drum wear rings replaced and upgraded in 2022. Rear TBM Can Structure was completely replaced in 2020, newer style Conveyor Lift Assembly supplied by Akkerman. Equipped with 4 Hydraulic Dirt Wings (Anti-Roll Stabilizers.). to see more information.더 보기
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