gearless ring motor for sag mill principles


ABB buys ring motor business to boost its gearless mill ABB is buying Alstom's ring motor business to enhance its gearless mill drive GMD activities The business based in Bilbao Spain has about 120 employees and achieved a turnover of €57m in 2012/13 -gearless ring motor for sag mill principles-,Siemens Supplies Gearless Drive Systems with 'Frozen For grinding of the ore an SAG Semi Autogenous Grinding mill and a ball mill will be used For the two ore-grinding mills Siemens is supplying gearless ring motor drive systems supplied with power via cycloconverters The SAG mill has a diameter of 38 feet 11 6 meters and will be equipped with a 18 megawatts drive system …… Get More

ABB buys ring motor business to boost its gearless mill

ABB is buying Alstom's ring motor business to enhance its gearless mill drive GMD activities The business based in Bilbao Spain has about 120 employees and achieved a turnover of €57m in 2012/13

Siemens Supplies Gearless Drive Systems with 'Frozen

For grinding of the ore an SAG Semi Autogenous Grinding mill and a ball mill will be used For the two ore-grinding mills Siemens is supplying gearless ring motor drive systems supplied with power via cycloconverters The SAG mill has a diameter of 38 feet 11 6 meters and will be equipped with a 18 megawatts drive system

When it Comes to Mining Bigger is Best

SAG mill ball mill and crusher A ball mill is a slightly inclined horizon- Gearless mill drive The limitation of an RMD system was overcome by ABB when it introduced the first gear- quired during the ring motor lifetime GMD condition monitoring ABB

Gearless mill drives Go gearless ABB Ltd

Gearless mill drives Go gearless The gearless mill drive eliminates all is going for larger ball and SAG mills Introduction with higher installed power ratings relative to the mill diameter ABB was − Assembly of your ring motor − Project management − Commissioning of the full drive

gearless grinding mill photos MT Mill Machine Group

Mills and GMDs Maarten van de Vijfeijken* looks at large larger and the largest units in grinding ore T he gearless motor also called wrap-around motor or ring motor is a very 2 CONGA THE WORLD S FIRST 42 FOOT DIAMETER 28 MW GEARLESS SAG MILL ABSTRACT In 2010 Newmont made the decision to purchase a 42 foot ft Semi-Autogenous Grinding

Ring gear drives huge grinding mill Machine Design

Ring-motor drives were first used in cement industry mills and later in mining industry applications The largest ringmotor- driven mill in the world is a 36-ft diam 16 000-hp SAG mill that

siemens com/mining SIMINE Gearless Mill Drives

SIMINE Gearless Mill Drives New standards for productivity 2 3 Your challenge The control principle as the mill-motor interface is a multifaceted task a proce-dure which has been repeated successfully many times in the past

ABB Motor Gearless Mill Drive GMD System stone crusher for sale

ABB Motor Gearless Mill Drive GMD System Skip navigation Sign in ABB ring geared mill drives Duration 3 07 OS 2015 123 COLLAHUASI MOLINO SAG REV 03 Duration

Mill grinding ore crusher price

SAG is an acronym for Semi-Autogenous Grinding SAG mills are autogenous mills but use grinding balls like a ball mill A SAG mill is usually a primary or first stage grinder SAG mills use a ball charge of 8 to 21% The largest SAG mill is 42 12 8m in diameter powered by a 28 MW 38 000 HP motor

Typical Mill Erection Schedule Gearless Machines

gearless sag mill erection schedule 2 0 ring motor erection 2 01 installation temporary platforms & cleaning of pedestals 2 02 reposition axles install levelers 2 03 erection of stator leveling soleplates 2 04 erection of both stator plates 2 05 erection of soleplates for stator displacement

Preprint 13-050 sand washing machine

Preprint 13-050 UPDATES ON GEARED VS GEARLESS DRIVE SOLUTIONS FOR GRINDING MILLS R Kalra CITIC-HIC Pty Ltd Sydney NSW SAG mill conference provided details of the then largest gear drive in interface between the mill vendor and the gearless motor supplier

to Design and Supply the World's Largest SAG Mill in

It is situated near the Newmont Yanacocha gold mine where installed what was then the world's largest single-stage SAG mill a 32ft x 32ft 9 75m x 9 75m EGL mill driven by a 16 5MW ABB gearless motor in 2008

Ring-geared mill drives Grinding ABB

We provide optimized mill drive solutions for all types of ring-geared mills low and high speed single and dual pinion with and without a gearbox — all designed for reliable long life and low maintenance operation Click here to view the animation for the ring-geared mill drives

Gearless Warp Around SAG Mill vibrating sieve separator

For almost a decade now very good operating experiences have been gained with a total of 28 gearless ring motor drives in the cement industry driving tube mills with diameters of 2 5 to 4 meters with drive powers ranging from 3000 to about 5000kW

Giant ABB drive systems boost mining productivity

Giant ABB drive systems boost mining productivity With no moving parts between the motor and the drum a gearless mill is also extremely Sag mill with ABB ring motor a tCollahuasi Copper Mine Chile The most powerful GMDs in the world

Gearless mill drives Grinding ABB

ABB's Gearless mill drive system is the most powerful mill drive system in the market to power semiautogenous SAG ball and autogenous AG mills such as ring-gear pinion gearbox coupling motor shaft and motor bearings By mounting the rotor poles directly onto the mill the mill itself becomes the rotor of the gearless motor

2009 Gearless Mill Drives vibrating sieve separator Gearless Mill Drives Machinery Risk Solutions Practice 2009 Matt Dugalic P Eng MARSH MRSP Risk Consultant VP Kurt

First new trolley assist truck system for many years

With the Simine Mill GD gearless drive gearless ring-motor drive systems the speed of the SAG and ball Mills can be varied with the help of the transvector control principle Mill operation can therefore be precisely adapted to changing material characteristics such as composition size and hardness

Siemens supplies gearless drive systems with frozen

For the two ore-grinding mills Siemens is supplying gearless ring motor drive systems supplied with power via cycloconverters The SAG mill has a diameter of 38 feet 11 6 meters and will be equipped with a 18 megawatts drive system

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