MILLING: Metso expands Megaliner to mill heads

HELSINKI, Finland – The new Metso lightweight Poly-Met Megaliner™ for grinding mill heads provides the same benefits as Metso’s original Megaliner – […]
HELSINKI, Finland – The new Metso lightweight Poly-Met Megaliner for grinding mill heads provides the same benefits as Metso's original Megaliner – namely safe installation and maximized availability. Like Metso's other Megaliners, this newest offering increases productivity in mills and makes maintenance and installation work safer than it is with traditional liners. Metso MegalinersSuitable for AG, SAG and ball mills, the easy-to-install Megaliner for mill heads is larger than conventional liners, and yet still light enough to be handled by the same 7- to 8-axis liner handlers. The Megaliner is also less prone to cracking than other lining types commonly found in this application. The Megaliner for mill heads minimizes the number of components to be installed by integrating multiple lifter and shell plate rows and providing the option to include filling segments. Fewer installation points speeds up the installation and change out process, as well. The reference installation of the Megaliner for mill heads on a 11.5-metre AG mill shows that installation time was reduced by 30%, and there is potential for even further improvements. Megaliner's innovative attachment system improves worker safety during installation and change outs; there is no need for workers to be in the danger zone of the liners since the liner bolts are attached from the outside of the mill. The Metso liner positioning system allows the liner handler operator to act alone and position liners without the guidance of others inside the mill. Bright guiding markers make positioning and alignment even easier. Removal is also safer and quicker. The threaded portion of the standard hex-head liner bolt is protected from dust, corrosion and general mechanical damage. Once loosened, it is often possible to remove the liner bolts simply by hand turning them. Pneumatic or recoilless hydraulic hammers are usually not needed for liner removal, as gravity helps to do the work. See for more information.


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