Access in and around the unit, maintenance and operational access. Lifting access not just for a reline but for complete removal if needed. nothing worse than taking half the steel away to remove the drive motor due to failure.
First of i would be thinking that the EPA license for dust monitoring and prevention would not allow such high level of dust to be present on and around the mine site/plant. The SG of the sorcue of product will tell you more on loads and the surface area of steel and plant. Again i think a breach of licence would be happening in todays enviroment. Thats a bit of food for thought.
Atlas Copco can tell you that information there the OEM of the products.