buy used sag-mills from a.m. king industries. we can help guide you to the best solution for your equipment needs. 9.75m x 3.66m egl sag mill, 6,800 hp dual drive 2 x 2,550 kw manufacturer: hardinge-koppers. inventory id: 6c-vi01. view details. aerofall 17' x 5' sag mill with 800 hp motor and lube system. manufacturer: aerofall
preprint 13-050 updates on geared vs gearless drive solutions for grinding mills among the many reasons that geared drives on large sag mills are not favoured, is due to not having an efficient variable speed drive interface between the mill vendor and the gearless motor supplier.
abbs gmd is the most powerful mill drive system in the market to power semiautogenous sag , ball and autogenous ag mills, this workhorse for grinding operations combines a robust, service-friendly and fit for purpose design to provide highest throughput, reliability and availability for your processing plant.
for sag milling, optimizing the throw and converting the available electrical energy installed motor power to potential energy height of throw, trajectory to kinetic energy rock breakage is the key function. therefore, having a speed range available allows this tuning of the sag mill.
autogenous mills, semi-autogenous mills and ball mills for wet grinding. a company of polysius thyssenkrupp ring motor driven sag mill for gold ore grinding. sag and ball mills for com-minuting gold/ by using a dual drive system, drive powers of up to 16,000 kw can be trans-ferred. maximum use of identi-
mill load sharing maintains equal torques on dual pinion mills throughout the whole speed range. controlled rollback prevents backlash and reduces downtime. mill power ride through keeps the mill operating even under voltage dips. over-duty cycle avoids unexpected downtime if the mill gets overloaded.
copper mountain: overview on the grinding mills and their dual pinion mill drives abstract this paper will first give a short overview of the copper mountain project in british columbia, which just has started commercial operation earlier this year. the grinding process with one 34' x 20' sag mill and two 24' x 39.5' ball mills will be briefly
stepping forward: using variable speed drives for optimizing the grinding process in sag and ball mills *i. atutxa and i. legarra . figure 1 general overview of the high speed and low speed drive system solutions for gear driven mills single or dual pinion ingeteam .
differences between drives power d of two drives sag mills. in a double drive/pinion sag, we face different power d between each drives. grinding and classification circuits. most of our large mill drives >5mw per motor are wrim, however we are now seeing a swing toward scim and vsd's as the cost of capex for vsd's is decreasing
once the basic operating conditions have been defined for the mill designer then, and only then, can he begin taking into account shell and head stresses and trunnion bearing sizes required to carry the load and to give the required openings for feeding and discharging the mills. mill heads are key structural components of any grinding mill.
advantages of ser drives for sag mills; advantages of ser drives for sag mills. friday, december 19, 2014. for large mills requiring variable speed, the wound rotor motor and ser drive are economical for a total rating of approximately 2mw to 16mw. i expect that this type of drive would be the most common large mill variable speed mill
single stage sag/ag milling design abstract single stage semi-autogenous / autogenous s/ag milling has become a common design for a variety of ore this puts the application in the realm of dual motor, dual pinion installations. xpower demand of 16 the sag mill model in the jksimmet software has not been shown to accurately reproduce
dual pinion gear driven mill; a drive 5 - a 5000 hp, 1200 rpm synchronous - induction motor with liquid rheostat and dc field excitation to a dual pinion gear driven mill. for the power supply in this study, four different scenarios will be considered as a power system in order to evaluate the different drive systems.
dual motor sag mills beltconveyersnet our company has been devoted to mining machinery for 40 years. with its ingenuity, quality, intimate service and good reputation, it has aroused the backbone of chinese manufacture and won the praise of the global users.