Metso Vertimill
The most mature stirred milling technology currently available.
Overview
Metso draws from more than 100 years of mill design and manufacturing expertise, and over three decades of successful Vertimill® applications.
Since its introduction in late 1979, over 440 Vertimills® have been sold worldwide.
The Vertimill® has proven to be a versatile tool that exhibits many advantages over traditional ball milling.
The Vertimill® is capable of handling feed sizes up to 6 mm and grinding to products less than 20 microns, and has standard mill sizes ranging from 15HP (11kW) to 4500HP (3352 kW).
Main features of the Vertimill® are:
Orebed® Magnetic shell liners – The permanent solution
Automatically greased bearings
VFD compatible – Unparalleled process control
Excellent turndown – Can run at a minimum of 20% power draw which makes it excellent for regrind applications and others with highly variable flows
Efficient high torque motor
Solid steel grinding screw with bolt on replaceable liners
Modular mill body
Benefits
Lower operating costs than ball mills
Higher energy efficiency – Typically 25-35% more, greater than 50% energy savings reported
Lower Media Consumption – Coincides with energy savings
Low Maintenance – Screw liners are the only major wear component
Longer Wear Life – low wear parts costs and labor associated with replacement
High Availability – Greater than 98% is common
Lower total installed cost than ball mills
Simpler Foundations
Requires less floor space – Typically 50% less than a ball mill
Modular Design for faster installation
Safety Features
Less noise – usually below 85db
All moving parts are enclosed
Research and development
Large scale installations of multiple Vertimill® are possible and are becoming more and more popular. One recent project has installed 16 VTM-1500-WB in a secondary grinding application. It is projected that the energy and media consumption savings alone will be in excess of $100 million US Dollars over the life of the mine compared with traditional ball mills.
Metso has recently developed a 4500 HP (3352kW) Vertimill®, designated the VTM-4500-C. It will begin operation in 2015 in a primary grinding capacity. The development of this mill and larger Vertimills makes the practicality of Vertimills® in primary and secondary grinding applications very economical.
Our engineers will review your specifications and recommend the proper Vertimill® for your application.
Energy efficient grinding
Vertimills® are globally recognized as energy efficient grinding machines and have been proven to grind more efficiently than ball mills with feeds as coarse as 6 mm to products finer than 20 microns. In addition to grind efficiency, reduced media consumption, lower installation cost, minimal maintenance, and minimal liner wear make the Metso Vertimill® the lowest total cost of ownership in many applications, substantially improving the profitability of concentrators.
