鋼(gang)管拋丸(wan)機(ji)的(de)拋丸(wan)室(shi)(shi)體(ti)內護(hu)板(ban)采用(yong)耐磨包鑄螺(luo)母遮(zhe)蓋與(yu)栓接(jie)，保護(hu)螺(luo)栓頭部不受損壞，拆裝(zhuang)更換(huan)方便。在室(shi)(shi)體(ti)的(de)進出口處(chu)分(fen)別采用(yong)多(duo)道密封(feng)橡(xiang)膠板(ban)密封(feng)，三角形(xing)重(zhong)疊(die)安裝(zhuang)方式，確保彈(dan)丸(wan)飛濺(jian)室(shi)(shi)外。鋼(gang)管外壁拋丸(wan)機(ji)輸(shu)送(song)系(xi)統由“V”型輥子(zi)組成(cheng)的(de)托輪(lun)機(ji)構或平(ping)面輥道輸(shu)送(song)組成(cheng)。