The IFI 490 independent milling equipment manufactured by UPET is used for milling cement plugs when a conserved well restarts production, milling of clogged sand plugs, milling of cement plugs for reactivation of production objectives that were previously isolated.

All components for these installations are mounted on two skids: one skid supports the main equipment formed of the DFID150/490 hydraulic device and the power unit equipped with all necessary components and accessories, operator cabin, reservoirs for drain fluid removal and supply hoists, and the second skid supporting the hydraulic motor head together with the relating hoists.