Ring Motor Sag Mill

Sales Inquiry

  • What Are Ring Motors For Sag Mills

    Ring motor driven SAG mill for gold . function of a trunnion on lube system on mills - mbba. sag mill trunnion lube ring gear lube. lubrication systems for sag . Get Price And Support Online; sag mill slip ring motor – Grinding Mill China. ball mill slip ring specification - crusherscreenplate. Synchronous Motors.

  • Why do we use carbon brushes in a slip ring motor? - Quora

    Jun 13, 2019 · The carbon brushes are used in slip ring motor for the following reasons. 1. The carbon is conductor of electricity. 2. The carbon is soft meterial and when it touches to the slip ring it wears. The slip ring is made of steel or phosporous bronze..

  • 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 .

  • What is an inching drive? - Motion Control Tips

    May 02, 2018 · In addition to the motor, gearbox, and coupling, most inching drive systems incorporate safety features, such as a brake or backstop, to prevent the drive from rotating when power is removed and to keep the equipment from rotating if it's stopped in an unbalanced position.

  • Used Sag Mills for sale. Hardinge equipment & more | Machinio

    21′ X 11′ HARDINGE SAG MILL. Manufacturer: Hardinge; 21′ x 11′ Hardinge SAG mill with 2875 DC slip ring motor, inching drive, & lubrication located in South America. Equip yourself with the gold standard.

  • Grinding Mill Gear Assembly - Mineral Processing & Metallurgy

    We will begin with the mill's bull gear assembly and work towards the motor, The BULL GEAR, sometimes called the RING GEAR is designed to turn the mill transforming the energy of the motor into motion for the mill. By mill we refer to Ball Mills, Rod Mills and SAG Mills. Anything gear and pinion really. The discharge end of the mill; For the operator this only becomes a problem should the .

  • Wound Rotor - TECO-Westinghouse Motor Company, a world .

    TECO-Westinghouse Motor Company Wound Rotor Induction Motors combine outstanding performance with an advanced long-life design. Available in ratings from 5 HP up to 15,000 HP, these rugged workhorses are ideal for many demanding applications including: Ball and Sag Mills Cranes Hoists Pumps Fans and Blowers Chippers Conveyors

  • ball mill motor drive noncontact ring - ZFINAN Heavy Machinery

    ball mill motor drive noncontact ring Themillnormally operates at 3150 rpm 1outboardmotor bearing legend2inboardmotorbearing 3inboardmillbearing 4outboardmillbearing bearing that was failing themill rotor bearingswhich are mounted in a steel housing are two 2 cylindrical roller bearings nu 316 ecmc3 and one 1 groovedballbearing skf 6316 c3.

  • 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.

  • ring motor for ball mill

    Ball Mills. Ball mills designed for long life and minimum maintenance overflow ball mill sizes range from 5 ft x 8 ft with 75 HP to 30' x 41' and as much as 30 000 HP Larger ball mills are available with dual pinion or ring motor drives Our mills incorporate many of the qualities which have made the Marcy name famous since 1913 . Sales Online

  • Phoenix: Big mill and latest tech keep long-lived mine .

    Jun 06, 2019 · "The motor on our SAG mill is the fascinating part for me," Hope said. . a big ring gear and pinions. A mill of this size would take two motors and pinions, one on each side," Tucker said. .

  • ABB to deliver three large gearless mill drives for .

    ABB's scope of supply consists of three complete GMD systems including transformers, ring motors and E-house. One 26 megawatt GMD system will be installed for a 40-foot diameter SAG mill, while two 20.5 megawatt GMD systems will be installed to drive two 27-foot diameter ball mills.

  • Grinding | David Brown Santasalo

    Grinding. All David Brown Santasalo gear systems are proven to withstand harsh grinding conditions and are engineered to exact customer requirements to ensure maximum performance. Girth / Ring Gears View Product. SAG, AG, Horizontal Ball and Rod Mill Gearboxes View Product. Vertical Roll Mill Drives View Product. Mill Pinion Gears

  • Paper # 25 - Copper Mountain Overview on the Grinding .

    the accuracy of the load sharing between the two motors. KEYWORDS SAG mill, ball mill, ring gear, dual pinion, drive systems, variable speed INTRODUCTION The project is located 15 km southwest of Princeton, British Columbia (BC), an established mining town. The initial exploration at Copper Mountain dates back to 1884. In 1923, Granby

  • Industrial Solutions Autogenous,

    mills, is the direct drive. Ring motor drive The ring motor features noncontact transmission of the driving torque to the mill shell by means of magnetic forces. As this produces no component wear, this type of drive provides high availability and long service life. Another significant aspect is .

  • SAG mills (semi-autogenous grinding mills) -

    Gearless mill drive (GMD) technology has further expanded the use of large SAG milling allowing to produce the world's largest SAG mill of 42' in diameter drawing power at 28 MW. Today, is the world leading supplier of gearless SAG mills operating globally.

  • Advantages of SER drives for SAG mills | GoHz.com

    Dec 19, 2014 · Advantages of SER drives for SAG mills. Friday, December 19, 2014 . So for a fixed torque and higher speed, the power obtained from the motor is higher than the motor nameplate rating. Brush/slip ring maintenance is one issue. However, when the brushes are specified correctly for the load, the wear is manageable. .

  • gearless ring motor for sag mill principles

    motor speed for ball mill; ball mill and sag circuit mining; ball mill size dia length made of ms plate with refractory lining and hp motor; dry sag mill for li ne processing; sag mill inching drive; sag mill vibrating screens; crusher mill motor in thermal power plant india; sag mill schematic; cement mill motor .

  • 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.

  • 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

  • (PDF) Evaluation of synchronous motors on grinding mills

    Evaluation of synchronous motors on grinding mills. . Ball mills and SAG mills, . the slip-ring Induction motors are often preferred to synchronous motors due to their inherent ability to .

  • Grinding Mill Foundations

    Sep 23, 2014 · This means that SAG mill foundations behave very differently from ball mill foundations. 4 – Mill Designer Stiffness Criteria. One of the mill designers performs a calculation to determine the "target stiffness" of the foundations given the mill and ring motor stiffnesses.

  • 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' (12.8m) in diameter, powered by a 28 MW (38,000 HP) motor.

  • variable speed sag mill

    Mill includes main drive motor Slip Ring 6 300 HPliquid resistance starter includes variable speed d. Service Online; Difference Between Sag Mill vs Ball Millmech4study. Oct 12 2017 · Today we will learn about difference between sag mill vs ball mill.

  • AYCA | Services SAG mill Ring Motors - A&CA

    SAG mill Ring Motors Ball mill Ring Motors Frequency Converters High current rectifiers for EW tank houses Medium and high power synchronous motors . » Routine maintenance, minor and major shutdowns in SAG GMD drives. » Dielectric recovery through the application of "Cryogenic Cleaning" in electric machines.

  • Grinding Mill Foundations

    Sep 23, 2014 · This means that SAG mill foundations behave very differently from ball mill foundations. 4 – Mill Designer Stiffness Criteria. One of the mill designers performs a calculation to determine the "target stiffness" of the foundations given the mill and ring motor stiffnesses.

  • 21' x 11' Hardinge SAG Mill - Nelson Machinery & Equipment .

    21' x 11' Hardinge SAG mill with 2875 DC slip ring motor, inching drive, & lubrication located in South America. Equip yourself with the gold standard. 21' x 11' Hardinge SAG mill with 2875 DC slip ring motor, inching drive, & lubrication located in South America. Equip yourself with the gold standard.

  • What is an inching drive? - Motion Control Tips

    May 02, 2018 · In addition to the motor, gearbox, and coupling, most inching drive systems incorporate safety features, such as a brake or backstop, to prevent the drive from rotating when power is removed and to keep the equipment from rotating if it's stopped in an unbalanced position.

  • 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.

  • ball mill motor drive noncontact ring - ZFINAN Heavy Machinery

    ball mill motor drive noncontact ring Themillnormally operates at 3150 rpm 1outboardmotor bearing legend2inboardmotorbearing 3inboardmillbearing 4outboardmillbearing bearing that was failing themill rotor bearingswhich are mounted in a steel housing are two 2 cylindrical roller bearings nu 316 ecmc3 and one 1 groovedballbearing skf 6316 c3.