Sheave: sheave wheel assembly. Tianlun non-processed surface (except rope outside the tank) should be coated with anti-rust paint Shaanxi inclined sheave, paint should be uniform Inner Shaft sheave, without cracks, peeling, bubbles and flow marks and other defects. Sheave test: test method with visual appearance of the product quality and assembly quality, when necessary, can be about 10 times the magnifying glass or inspection hammering method. Mine Tianlun scope and features: sheave mounted on the derrick, as a support Shandong inclined sheave, for mine hoist when the hoist drum to support drag lift between the container inclined sheave, guide rope steering purposes. Sheave is one of the key equipment for mine hoisting system. Sheave mounted on a mast, holder winch drum rope to lift the container between the play a supportive role and redirection.