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Ring Motor Sag Mill

Used Sag-mills For Sale - amking

Buy used Sag-mills from A.M. King Industries. We can help guide you to the best solution for your equipment needs. . Partially Refurbished AEROFALL 17' x 5' Sag Mill with 600 HP motor. Manufacturer: AEROFALL. Inventory ID: 6C-275. View Details. AEROFALL 17' x 5' Sag Mill with 800 HP motor and lube system.

Selecting Inching Drives for Mill and Kiln Applications

Selecting Inching Drives for Mill and Kiln Applications Glen Cahala Frank C Uherek, Principal Engineer - Gear Engineering Software Development Abstract The inching drive, also known as a barring or auxiliary drive, is an important component of any mill or kiln installation. It is used for maintenance and inspection purposes, as

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 .

Gears And Pinion For Ball Mill | Crusher Mills, Cone .

how to align ball mill pinion to drive motor-[crusher and mill] Ring-geared mill drives Single and dual pinion. SAG and ball mill applications and are able . Now, the driving system of grinding ball mill .

INNOVATION NEWS Mills and GMDs - ABB Ltd

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 large synchronous motor. The poles of . reliable drive system for SAG mills. Early SAG mills had a diameter of about 32', later

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 4.3m through 12.2m in diameter with powers as high as 28,000 kW.

ring gear for ball mill

2018-5-10 · COPPER MOUNTAIN: OVERVIEW ON THE GRINDING MILLS AND THEIR DUAL PINION MILL DRIVES main focus on the low mechanical stress impact of these mill drives on the pinion and ring gear, as well as SAG mill, ball mill, ring gear, dual pinion, drive systems, variable speed INTRODUCTION The project is located 15 km southwest of Princeton .

Digital Object Identifier Fig 1 Construction of a SAG mill

Digital Object Identifier 10.1109/TIE.2014.2378732 Fig. 1. Construction of a SAG mill with the stator and the rotor separately mounted. Fig. 2. Cross section of a SAG mill. synchronous ring motor. The stator is separately mounted to the basement. It is fed by a load-commutated cycloconverter with a power rating of typically 20 MW at a maximum fundamental frequency of 6 Hz [3], [4].

GEARS & DRIVES IRevival of the GMD in cement

synchronous ring motor (wrap-around motor) is installed concentrically around the mill. The mill shell carries the rotor poles which are individually mounted to form an even air gap with the wrap around motor. The number of poles (up to 76 poles on larger SAG mills) as well as the way the poles are mounted depends on the size of the motor.

Selecting Motor Controls for Mining Process Torque .

Selecting Motor Controls for Mining Process Torque Demands Slide 1 . Selecting Motor Controls for Mining Process Torque Demands Purposes Today •View typical mine equipment & processes . SAG Mill Viewed From Top Motor #1 of 2 Gearbox #1 of 2 Mill Drum Motor #2 of 2 .

Gearless AG/SAG mills -

Gearless AG/SAG mills. With the proven use of gearless drive technology, the limitation of AG/SAG mill size due to gearing constraints has been eliminated. is the world's leading supplier of gearless AG/SAG mills.

Problem with Brushes chipping on large SAG Mill Motor 2.3 .

Jun 11, 2010 · We have a 2.3MW slip ring motor WRIM on the SAG Mill in the process plant. The issue we have is that the leading edge on the brushes on only ONE of the rings is chipping (7 brushes per ring). We have had this issue for 6/9 mths now, mill has been running 10 years with no problem.

Design and dynamic behavior of large Ring Motors for .

Ring Motors vary the speed of the mill by changing the sta-tor frequency. A cycloconverter provides variable frequency for start, stop and speed variation during operation. Figure 1: Ring Motor of the 38' SAG-Mill of Rio Paracatú Mineraçao; Brazil 3 Design Verification To assure reliability of operation the mechanical design must be verified.

Reprint - Siemens Global Website

drives for grinding mills Reprint . Siemens AG – Product Section Leader, Application Development, Electrical Drive Systems Kurt Tischler, Siemens AG – Senior Manager, Mining Department, . livers variable frequency to the Ring Motor of the gearless drive, changing its speed by variation of fre-

2009 Gearless Mill Drives - CB&MUA

Gearless Mill Drives Machinery Risk Solutions Practice 2009 Matt Dugalic P.Eng., MARSH . Copper & Zinc Electrical Flashovers of SAG Mill Stator +/- 115 Iron / Salt Typhoon (Emma) +/- 107.7. . . Siemens. . of the Ring motor the vibrations disappeared .

ring gear for ball mill

2018-5-10 · COPPER MOUNTAIN: OVERVIEW ON THE GRINDING MILLS AND THEIR DUAL PINION MILL DRIVES main focus on the low mechanical stress impact of these mill drives on the pinion and ring gear, as well as SAG mill, ball mill, ring gear, dual pinion, drive systems, variable speed INTRODUCTION The project is located 15 km southwest of Princeton .

Ok Tedi plans for long term with SAG mill upgrades by .

For SAG 2, Siemens supplies two 8 pole, high speed induction motors to replace the existing slip-ring motors, eliminating all brush or slip-ring related outages and maintenance activities. The four identical variable speed drives (VSD) operating all four mill motors are Sinamics Perfect Harmony GH180 units.

Gearless Drives

autogenous grinding (SAG) mills in the framework of an order for two 32-foot SAG mills with a performance of 11,200 kW. This project for the Chuquicamata mine in Chile represented a monumental achievement, as the difference between creating a drive for a 21-foot diameter ring motor and a 32-foot ring motor .

Current Issues on High-Power Cycloconverter - fed Gearless .

use of big mill grinding circuits, where large power gearless motor drives with cycloconverters in the range around 20 MW are being applied for semiautogenous (SAG) mills and re-

Mills - FLANDERS

FLANDERS has developed our own line of higher-performance, purpose-built mill motors and drives based on years of experience doing motor troubleshooting and repairs for major steel, aluminum, copper, and paper mill operations. Our reversing mill and finishing mill motors are unsurpassed in the industry for reliability and performance.

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 4.3m through 12.2m in diameter with powers as high as 28,000 kW.

Ring-geared mill drives - Grinding | ABB

Ring-geared mills operated with frequency converter (much more than just variable speed) (English - pdf - Article) Use of the latest technology to overcome the demands of mill operation (English - pdf - Article) Ring-Geared Mill Drives - Flexible and smooth operation - Brochure (English - pdf - Brochure)

Mining Industry: What is a grinding mill? How does it work .

Sep 06, 2018 · A grinding mill is a large tubular machine with a crown gear driven by a pinion, which is driven by a reduction gear and electric motor. Some large SAG mills have what we call a "wrapped" motor drive, which is the motor fields are installed surrounding the entire circumference of the mill, with the mill itself being the stator.

Gearless mill drives - Grinding | ABB

Our GMD eliminates all mechanical components of a conventional mill drive system, 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.

Digital Object Identifier Fig 1 Construction of a SAG mill

Digital Object Identifier 10.1109/TIE.2014.2378732 Fig. 1. Construction of a SAG mill with the stator and the rotor separately mounted. Fig. 2. Cross section of a SAG mill. synchronous ring motor. The stator is separately mounted to the basement. It is fed by a load-commutated cycloconverter with a power rating of typically 20 MW at a maximum fundamental frequency of 6 Hz [3], [4].

inching drive ball mill spares

Retrofits for grinding mills - systems. shell motor trunnion gear guard feed chute inching drive gear trunnion seal . the existing by -feet Hardinge conical ball mill, the ETO grinding team. get price; how does a ball mill motor work - eMOTION project. SAG mill, ball mill, ring .

Allis Chalmers Ball Mill Bull Gear (Used) for Sale in .

10,000 TPD Gold Plant w/SAG & Ball Mills, Gyratory & Cone Crushers, Rock Breakers & More, UNUSED 36' X 23' AG Mill w/1500 KW Motor and 22' X 41' Regrind Ball Mill 13,405 HP Total Power, UNUSED MP1000 Cone Crusher, UNUSED FL 40' x 25' Gearless SAG Mill, and 26' x 40'6" Ball Mills,

Uneven SAG Mill Drive Power Draw - Grinding .

Grinding & Classification Circuits robertd 2018-06-17T09:51:34 . There are two GE motors for SAG mill but unfortunately sometimes current draw exceeds more than 300 A in one of them and makes SAG mill shut down. . Connect the other lead from the voltmeter to K phase of the slip ring busbar on the other motor. Ensure connections and area is .

Mining Industry: What is a grinding mill? How does it work .

Sep 06, 2018 · A grinding mill is a large tubular machine with a crown gear driven by a pinion, which is driven by a reduction gear and electric motor. Some large SAG mills have what we call a "wrapped" motor drive, which is the motor fields are installed surrounding the entire circumference of the mill, with the mill itself being the stator.

Used Sag-mills For Sale - amking

Buy used Sag-mills from A.M. King Industries. We can help guide you to the best solution for your equipment needs. . Partially Refurbished AEROFALL 17' x 5' Sag Mill with 600 HP motor. Manufacturer: AEROFALL. Inventory ID: 6C-275. View Details. AEROFALL 17' x 5' Sag Mill with 800 HP motor and lube system.