... power 2.Using collector silp ring carbon brush. 3.ISO9001:2008 DJ2 series cable reel drum is a very small kind device ... protection,ship building and repair. This JT2 cable reel drum structure is very simple,easy maintenance,Safe and reliable and ... many other advantages. DJ2 cable reel drum components include :winding spring group,winding drum, slip-ring, brush rocker, engine base, drive axle and ...