Rolling Mill Aprons & High Torque Spindles
All rolling mills should be equipped with an apron to feed and receive the part or strip. The material can be niobium, tantalum, titanium, or aluminum. These rolling mills require very large separating forces and an apron to feed and receive the small pieces at the passline of the rolls. These high strength aprons are equipped with heavy duty rolls to withstand substantial downward forces in the event the small pieces come through slightly bent. Even with coil-to-coil rolling mill lines, aprons are necessary to assure hands off threading. The important aspect of an apron is that it needs to be quickly removed to eject the rolls from the rolling mill.
High Torque Spindles
This is a typical lubricated gear type universals or spindles. The spindles must be able to withstand large torque to drive the work roll for heavy reductions. Spindles can be made to handle large torque at any speed. Some spindles use large forged “U” joints similar to small truck universals
