Application of China Coal Ybj-800 (B) Coal Mine Laser Orientation InstrumentChina Coal Ybj-800 (B) Coal Mine Laser Orientation Instrument can be widely used as a directive device for positioning in laneway digging,and a positioning and alignment device for road,railway,tunnel,culvert bridge,tall building and pipeline installation.Parameter ofChina Coal Ybj-800 (B) Coal Mine Laser Orientation InstrumentExplosion-proof typemining anti-explosionMarkExdIMbCharging voltageAC127V (AC105V~AC140Vallowable)Work current≤90mALaser power≤15mWRange800mLobe diameter≤60mm(800m)Lobe move distance360°adjustment range≥±1.5°
Photos OfChina Coal Ybj-800 (B) Coal Mine Laser Orientation Instrument