Multotec mill and scrubber linings are specially designed to increase efficiency, reduce downtime and lower the overall costs of your milling plant.
With a complete range of mill liner components, from lifter bars and shell plates to centre cones and trunnion liners, we use a range of engineering tools including MillTraj modelling software, Inventor 3D and AutoCAD to develop customised mill and scrubber liners to your requirements.
As your specialist in rubber wear linings, Multotec offers full plant audits, installation and maintenance and condition monitoring services for your grinding mill liners.
Multotec scrubber liners are ideal for hard minerals such as diamonds, and for treatment of laterite and other high clay ores.
Protect your mill from mineral process abuses while ensuring optimum grinding and crushing efficiency with Multotec’s ball mill liners.
Multotec SAG mill liners use specialised software and rubber composite components to provide superior impact and wear resistance.
The thickness can vary in order to balance mill capacity and liner life. The width is designed for optimum protection from the lifter bars. MultoMet™ shell plates, incorporating Hardox strips, are for demanding applications or where the drilling pattern result in the shell plates being exposed to high wear.
Lifter bars are available in a range of widths, heights, and in rubber or composite profiles. Steel reinforced lifter bars are designed to provide maximum impact and abrasion resistance. MultoMet™ lifter bars have Hardox tempered plates whilst heavy-duty MultoMet™ lifter bars have castings for larger ball mills and SAG mills.
Head Plates are custom designed for each mill or scrubber for ease of installation and handling. Rubber head plates are available in various designs to combat sliding abrasion. MultoMet™ head plates, incorporating Hardox strips, are designed for gruelling applications.
Heavy-duty grate plate designs are available for larger mills with a range of aperture sizes. The elastic property of rubber allows for smaller slots than steel grates whilst eliminating blinding problems. Internal frames are designed for different mill loads and semi-overflow designs control the pulp level in the mill.
Manufactured from a fabricated steel base, which is then rubber lined, Multotec’s pulp lifters ensure the correct volumetric flow. Rubber lined pulp lifters provide optimum discharge of pulp through the mill in order to minimise ‘bottle-necks’. Rubber wear plates, bolted onto the high wear areas, achieve an improved life.
Trunnion liners feature a rubber-lined fabricated steel base, which is then rubber lined. Loose steel-backed rubber liners are also used in larger trunnion and bell mouth linings.
Central cones are designed to assist the discharge of the material to increase capacity. These are supplied in segments that are assembled inside the mill for ease of installation. The centre cone section should be directly underneath the pulp lifters section.
Filling, support and corner segments fit into the corners of the mills and scrubbers to provide a clean interface between the head and shell liners. Multotec’s design locks the head plates and grate plates into position and stop material collecting in the corners of your mill.
Multotec’s rubber mill and scrubber linings are designed by combining the results of computer simulations and inspection data in order to optimise charge trajectory and wear life. Multotec can provide the correct rubber formulation and attachment systems such as stainless steel T-tracks to suit highly acidic, high pH and even diesel operating environments.
Our lining components are available in a wide range of designs, dimensions and profiles. In addition to the standard rubber components, we also supply MultoMet composite lifter bars, shell plates and head plates.
Multotec installation teams supervise, assist and undertake complete lining installations. Stock control assistance and condition monitoring are also provided.
Multotec utilises MillTraj software to analyse wear requirements to ensure customised mill liner profile designs that consistently deliver an optimum trajectory of material in your milling plant.
This specialised trajectory modelling measures the variable speed to demonstrate the impact of mill speed. The display features all representative wear resistant liners and mill charge with a clear Perspex screen on either side in order to assess the trajectory pattern of mill charge during operation.
Multotec uses computer simulation to provide optimum liner configuration that extends liner life and increases mill productivity.
Achieving the desired grind efficiency in mills is a critical focus for mines seeking to optimise the operating costs of their mineral processing operations.
As gradual wear on the mill liner profile affects the material trajectory inside the mill, resulting in decreased impact grinding or attrition grinding efficiency, operators need to ensure an optimum wear mill liner profile is constantly maintained.
Introducing MultoScan: the most affordable mill liner profile condition monitoring system. Where traditional mill liner monitoring and inspection is unreliable and time-consuming, MultoScan accurately tracks your milling plant’s liner wear in real time and notifies you when it begins to reduce efficiency.
Multotec is your turnkey mill and scrubber liner provider:
A milling plant and process audit provides the framework for achieving optimum efficiency in your grinding and crushing application.
Utilising computer simulations such as MillTraj software to optimise liner design and MultoScan and Hawkeye™ to execute condition monitoring, Multotec will help you achieve an optimum mill trajectory, improve equipment service life and tailor a service programme designed to lower your cost per ton.
Michael (Spike) Taylor
Michael (Spike) Taylor has been working at Multotec since 1985, and has been Managing Director of Multotec Rubber since 2009.
Specialising in extractive metallurgy, and having formerly worked for some of Africa’s biggest mines, Michael oversees product and business development of our mill and scrubber lining range.