dual motor sag mills

MINERAL PROCESSING: ABB commissions Clarabelle mill ,

ONTARIO – ABB, the leading power and automation technology group, has commissioned an upgrade to Vale‘s existing Clarabelle dual pinion semi-autogenous (SAG) millThe project was completed on-time and on-budget with an excellent safety record The Clarabelle mill beneficiates nickel-copper ore from various sources and companies and to produce a nickel-copper concentrate and copper ,

Sales Online

SAG Mill - Feed The Beast Wiki

The SAG Mill is a block added by the EnderIO mod A machine similar to a Pulverizer or a MaceratorIt is used to process resources to produce dust It accepts energy in the form of Redstone Flux or Minecraft Joule, with an internal buffer of 100,000 RF and consumption of 20 RF per tickThe energy storage capacity and processing speed can be increased by adding one of 3 tier of Capacitor into ,

Sales Online

Unused Sag-mills For Sale - AM King

2 Units - UNUSED FL 36’ x 24' Dual Pinion Sag Mill with 2 ABB 9,000 kW (12,069 HP) Motors for Total Power of 18,000 kW (24,138 HP) Inventory ID: 6C-HM03 Manufacturer: FL

Sales Online

SINGLE STAGE SAG/AG MILLING DESIGN

number of the largest SAG mills designed are installed in single stage configuration This paper discusses the , This puts the application in the realm of dual motor, dual pinion installations xPower demand of 16 , Historically starting a single large motor that is a significant portion of the entire plant load was viewed as an

Sales Online

Starter of SAG Mills with rotor resistance

Each mills have two motors of 8000 kW at 138 kV A: For large mills requiring variable speed, the wound rotor motor and SER drive are economical for a total rating of approximately 2MW to 16MW Above 16MW, the gearless drive (cyclo-converter) is typically used because gearboxes and pinion gears reach their present limit in size

Sales Online

WEG Provides Innovation in Ball Mill and SAG Drives with ,

The products tested are part of an important order from a large mining company for units that will drive 18 ball and SAG mills, both with single and dual pinion The WEG laboratory is one of the largest and most sophisticated facilities of its kind devoted for the testing of electrical equipment and systems

Sales Online

THE ENGINEERING AND PROCESS EFFECTS OF CHOOSING A ,

motor and mill structures) Increasing the motor speed, ω, holding the power, P, constant results in a reduced torque, T Thus, a purchaser who specifies a higher rated speed of the mill will get a lower torque design, usually resulting in a lower motor cost The paper specifically describes SAG mills, but the equations and principles apply ,

Sales Online

An electrical impact study between variable speed dual ,

Conventional mining process circuits use both Semi-Autogenous Grinding (SAG) and Ball mills It is very common that the SAG mills are operated with adjusta An electrical impact study between variable speed dual pinion mills and gearless mill drives - IEEE Conference Publication

Sales Online

Gearless mill drives - Grinding | ABB

ABB’s 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 ,

Sales Online

Vale operation in Ontario gets upgrades to ore-processing mill

The SAG mill project involved upgrades to a machine that had reached its end-of-life ABB replaced all of the electrical equipment including 5500KW motors, converter, transformer, motor control ,

Sales Online

(PDF) Evaluation of synchronous motors on grinding mills

This paper concentrate s on modern motor and drive solutions for s ingle and dual pinion driven Ball an d SAG Mills and the motors and drives used to p ower them It will cover the application s ,

Sales Online

Advantages of SER drives for SAG mills | GoHz

Dec 19, 2014· 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 Above 16MW, the gearless drive (cyclo-converter) is typically used because gearboxes and pinion gears reach their present limit in size ,

Sales Online

Ring-geared mill drives - Grinding | ABB

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 ,

Sales Online

Ball Mills for sale, Pebble Mills, Rod Mills, SAG Mill ,

105 ft x 14 ft Marcy Ball Mill with 800hp GE Synchronous Motor, 1200rpm, 4160v, 60 cycle, starter included (5 KV air breaker style), Pinion and clutch driven by a Falk Gearbox, single helical pinion, trunnion sole plates, Eaton Airflex Clutch 28VC 650 dual bladder, NO LINERS, trunnion bearings inserts, trunnion beraings housing, trunnion ,

Sales Online

INCREASING SAG MILL CAPACITY AT THE COPPER ,

20’ EGL SAG mill, a Raptor 900 pebble crusher and two 24’ x 39’6” ball mills Each mill is equipped with a 2 x 8500HP dual pinion drive system The plant was designed to process 1585 h mtpof SAG feed From startup, the mill struggled to meet the required production rat Over time, a ,

Sales Online

The Best Countertop Grain Mills and Flour Grinders in 2020 ,

Jan 05, 2020· The Classic and PK1 have industrial 360-watt motors, while the FidiFloc uses a 250-watt motor, and all provide plenty of power to mill at a rate of up to 35 ounces per minute The XL also has the same solid beech construction as the Classic, but boasts a larger 600-watt motor that processes flour at a rate of 7 ounces per minute, with a hopper ,

Sales Online

Autogenous and Semi-Autogenous Mills | FL

Single stage SAG Mills are very beneficial in reducing CAPEX for plants with a staged throughput approach When future tonnage is to be increased, the SAG Mill can feed downstream ball milling to boost capacity Fuller-Traylor SAG/AG Mills range in size from 43m through 122m in diameter with powers as high as 28,000 kW

Sales Online

Dual Motors on a Chainsaw Mill - WOODWEB

Dual Motors on a Chainsaw Mill You can connect two motors of different horsepowers to one chainsaw bar, but operating the contraption is tricky May 16, 2008 Question They say you need at least a 90cc saw for a mill Would two saws that total 112cc (currently have Stihl 290's) work as good or close to as good as one big saw, or would you lose ,

Sales Online

difference between sag ball mill - populareducationcoza

SAG mill, ball mill, ring gear, dual pinion, drive systems, variable speed , even load sharing between the two motor and pinion drives a clutch is not required , The only difference in each pair of motors for every mill is the location of the,

Sales Online

QdX4 Mill Drive system

SAG mill 36 ft dual drive SAG mill 40 ft QdX4TM Mill Drive Foundation deformation CMD test bench Condition monitoring Foundation , •Dual motor load sharing between two TMMetso QdX4 Mill Driv • Low speed synchronous or induction Motor with Variable Speed Drive (VSD)

Sales Online

TECHNICAL How to Spec a Mill Gear - Power & Transmission

mill, it needs to have a bore larger than the mill outside diameter The mill out-side diameter is a function of the grind-ing process selected Autogenous mills are the largest in diameter since the feed grinds itself A semi-autogenous mill uses some metallic or ceramic balls to assist the grinding process and can be slightly smaller

Sales Online

Increasing availability through advanced Gearless Drive ,

Figure 1 – Top view of SAG mills with alternative drive options; left side: dual pinion drive including motor, gearbox, pinion and girth gear; right side: gearless ring motor Declining ore grades, leading to increased material transport and plant throughput requirements, are one of the

Sales Online

SAG Milling in Australia -Revised Submission

The CCV – ring motor (gearless) drive is used at Cadia (20 MW) and Olympic Dam (18 MW) It has been the industry standard for SAG mills above 13 MW capacity However, pinion systems to 8 MW per pinion and dual motor systems with quadruple pinions extend the range of gear driven mills to a theoretical limit of 32 MW The Ernest Henry SAG mill

Sales Online

Gearless Mill Drives | Beneficiation | Siemens Global

Frozen charge detection and automatic loosening with gearless mill drives (SAG Conf 2015) Mill drives: the desire for increased power and the associated limits and conditions (SAG Conf 2015) The engineering and process effects of choosing a motor design speed (SAG Conf 2015)

Sales Online

Mill (grinding) - Wikipedia

SAG is an acronym for semi-autogenous grinding SAG mills are autogenous mills that also 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' (128m) in diameter, powered by a 28 MW (38,000 HP) motor

Sales Online

Putting a Ball or SAG Mill on Care and Maintenance

Jacking/Lifting Cradle The mine is closed and now you need to know how to put the SAG or Large Ball Mill in care and maintenance does not have to be complicated to the point where you need bridge erection equipment for lifting a Mill (AG/SAG/Rod/Ball) You actually need

Sales Online

Difference Between Sag Mill vs Ball Mill - mech4study

Oct 12, 2017· SAG mill make use of steel balls included with some large and hard rocks for grinding These mills utilize the balls in making the large fragments of materials broken into piec The ball charge of a SAG mill is about 9% to 20%This process takes place inside the large rotating drum of SAG mill which is filled with balls partially

Sales Online

Mining - Grinding and Processing | WEG

Variable Speed Single or double pinion driving systems Designed to drive and control the speed of the medium voltage motors coupled to the SAG/AG, ball and HPGR mills with single or double pinion, the MVW01 frequency drive uses state of the art technology through a multilevel structure with medium voltage IGBTs, reducing the harmonic currents on the motor to extremely low levels

Sales Online

1 x SAG Mill & Siemens Motor

1 x SAG Mill & Siemens Motor For Sale/Re-Assignment Mill Details Type of Mill SAG Mill Mill Dimensions 11,582 mm x 7,759 mm (38’ x 26’) (D x L) Default Mill Speed 75-80 RPM Mill Speed 756-1008 RPM Liners Excluded Mill Drive Motor Type Wrap Around (included) Mill Drive Motor Size 19,400 KW (26,016 hp) Variable Speed Drive Yes Max

Sales Online