Gearless Mill Drive System

Gearless Drives - Siemens

Gearless Drives - Siemens

Gearless mill drives (GMDs) have been installed on platinum-miner Anglo Platinum's Potgietersrust Platinum (PPRust) 600 000 t/m concentrator.

SAG MILLING - Gearless drive system from ABB - Canadian ...

SAG MILLING - Gearless drive system from ABB - Canadian ...

An induction motor fed by GE's MV7000 Medium Voltage drive is one of the latest solutions designed and offered by GE for all rolling mill applications. As the induction motor provides more availability, reliability, lower maintenance and reduced electrical distribution equipment, this solution can contribute to significant savings for our ...

How digitalized gearless drive technology results in ...

How digitalized gearless drive technology results in ...

The Gearless Mill Drive system consists of the ring motor with its feeding cyclconverter, pre-installed in an E-house. It also includes the excitation rectifier, the automation system (for mill and motor) including HMI, monitoring and diagnostic system, MCC's (for mill and drive auxiliaries), differential

Gearless Mill Drive Sales Rev Up to Meet Demand

Gearless Mill Drive Sales Rev Up to Meet Demand

Eleven 5MW gearless drives with synchronous motors running at low speeds (50-60rpm) drive three conveyors; two with four motors each and one with three. Two 20MW conveyors transport the ore from the open pit operation to the surface, overcoming an elevation change of around 1,300m, while the second conveyor feeds into a slightly smaller, 15MW ...

ABB wins gearless mill drive order from Indian producer??

ABB wins gearless mill drive order from Indian producer??

An induction motor fed by GE's MV7000 Medium Voltage drive is one of the latest solutions designed and offered by GE for all rolling mill applications. As the induction motor provides more availability, reliability, lower maintenance and reduced electrical distribution equipment, this solution can contribute to significant savings for our ...

Cobre Panama starts up gearless mill drive systems ...

Cobre Panama starts up gearless mill drive systems ...

In December 2001, Gold Fields acquired the St. Ives project near Kalgoorlie, and only in 2003 did the new owner decide to go ahead with the project and to install the 36-ft SAG mill and its 13.5-MW gearless mill drive at St. Ives.

Siemens Supplies Gearless Drive Systems with 'Frozen ...

Siemens Supplies Gearless Drive Systems with 'Frozen ...

Sep 15, 2006· 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. The 26 foot mill (8 meters) will have a drive …

Gearless mill drive system in iron ore ­processing ...

Gearless mill drive system in iron ore ­processing ...

Jan 19, 2016· The mills at Sentinel in Zambia are amongst the world's biggest, with 2 off 40 ft SAG mills complete with 28 MW drives, and 2 off 28 foot-ball mills with 22 ...

The Case for Going Gearless | E & MJ

The Case for Going Gearless | E & MJ

The SIMINE Gearless mill drives pump system significantly enhances concentrator productivity by eliminating the reducer gear between motor and pump and all corresponding maintenance. In addition, the cyclone pumps with variable speed can adjust their energy consumption to the optimized flow of pulp, resulting in energy savings of up to 30%.

Gearless Mill Drive Reliability | ABB Ability

Gearless Mill Drive Reliability | ABB Ability

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. The motor is fed by a fuse-less cycloconverter that is connected to the MV …

Drive Systems | Metal Solutions | GE Power Conversion

Drive Systems | Metal Solutions | GE Power Conversion

Drive stations with a gearless drive system can be built more compactly. This is especially useful for drive stations in tunnels or underground applications. The capability to increase drive power per drive pulley enables the design of longer belt conveyor systems, and the number of drive …

ABB gearless mill drive & digital services help increase ...

ABB gearless mill drive & digital services help increase ...

Gearless mill drive system (GMD) Maximum availability and productivity . Go gearless to meet your business objetives by exceeding standard availability targets in your grinding operations. 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 ...

The Siemens 42ft gearless mill drive, still an ...

The Siemens 42ft gearless mill drive, still an ...

In December 2001, Gold Fields acquired the St. Ives project near Kalgoorlie, and only in 2003 did the new owner decide to go ahead with the project and to install the 36-ft SAG mill and its 13.5-MW gearless mill drive at St. Ives.

Sentinel: Siemens Gearless Mill Drives - YouTube

Sentinel: Siemens Gearless Mill Drives - YouTube

Mar 01, 2012· Gearless mill drive system in iron ore ­processing Diagramm eines getriebelosen Mühlenantriebssystems von ABB # Diagram of ABB's gearless mill drive system ABB was recently contracted to supply gearless mill drive (GMD) systems for two 38 foot semiautogenous grinding (SAG) mills at the Serra Azul iron ore mine in Brazil.

Increasing Availability through Advanced Gearless Drive ...

Increasing Availability through Advanced Gearless Drive ...

In all, two 28-megawatt gearless mill drive systems (GMDs) are in use at the mine's 40ft SAG mills, and four 16.5MW GMDs are employed in 26 football mills. "Gearless mill drives are the 'workhorses' for grinding operations, which are at the heart of any mine," …

Cobre Panama starts up gearless mill drive systems ...

Cobre Panama starts up gearless mill drive systems ...

ABB recently won an order worth 44 million US$ to deliver three gearless mill drive systems (GMDs) for a new copper mine to be operated by Kazakhmys PLC (Kazakhmys) in southeastern Kazakhstan. The contract was awarded in the first quarter of 2012. Kazakhmys is the largest copper producer in Kazakhstan and one of the top copper producers in the ...

Drive Systems | Metal Solutions | GE Power Conversion

Drive Systems | Metal Solutions | GE Power Conversion

The company selected ABB's 26 MW gearless mill drive system (GMD) for the mine's 40 ft SAG mill, as well as other drives, electrical infrastructure equipment and a long-term service agreement (LTSA). This is expected to reduce operating costs, improve process throughput and reliability while saving energy and keep equipment in top form.

Gearless Mill Drive System - lalexandrin.be

Gearless Mill Drive System - lalexandrin.be

Gearless mill drive system (GMD) Maximum availability and productivity . Go gearless to meet your business objetives by exceeding standard availability targets in your grinding operations. ABBs GMD is the most powerful mill drive system in the market to power semiautogenous (SAG), ball and autogenous (AG) mills, This workhorse for ...

Gearless Mill Drive

Gearless Mill Drive

ABB announces that it has won an order for the first gearless mill drive (GMD) system ever to be installed in an Indian manufacturing plant. The order was placed at the end of October, by the Indian cement manufacturer Lalitha Cement Ltd. (LCL), located in Hyderabad, the capital of the Indian state of Andhra Pradesh.

ABB's new Gearless Mill Drive generation: Maintenance ...

ABB's new Gearless Mill Drive generation: Maintenance ...

In all, two 28-megawatt gearless mill drive systems (GMDs) are in use at the mine's 40ft SAG mills, and four 16.5MW GMDs are employed in 26 football mills. "Gearless mill drives are the 'workhorses' for grinding operations, which are at the heart of any mine," …

Gearless mill drives - Mining Weekly

Gearless mill drives - Mining Weekly

Gearless mill drive system in iron ore ­processing Diagramm eines getriebelosen Mühlenantriebssystems von ABB # Diagram of ABB's gearless mill drive system ABB was recently contracted to supply gearless mill drive (GMD) systems for two 38 foot semiautogenous grinding (SAG) mills at the Serra Azul iron ore mine in Brazil.

SAG MILLING - Gearless drive system from ABB - Canadian ...

SAG MILLING - Gearless drive system from ABB - Canadian ...

Sep 13, 2006· Simine Mill GD provides a gearless drive with no mechanical parts between the motor and the mill. Stepless adjustment of the rotational speed aids optimum start-up and means that the system can be controlled in accordance with the varying demands of the material in the mill. This reduces wear, maintenance and energy consumption.

Gearless mill drives - Grinding | ABB

Gearless mill drives - Grinding | ABB

Gearless mill drives. Discover. Gearless mill drives. Discover. Gearless mill drives. Discover. Gearless mill drives. Discover. A gearless millsdrive system comprises: the synchronous ring motor, the three converter transformers, one excitation transformer and the harmonic filter banks, as well as the E-house containing the cycloconverter and ...

Siemens Delivers First Gearless Mill Drive System to ...

Siemens Delivers First Gearless Mill Drive System to ...

Gearless mill drives are becoming the drive system of choice on large AG, SAG and ball mill installations for new projects and existing mill expansions. At least 31 GMDs have been ordered from Siemens and ABB, for example, over the past year or so for mills ranging up to 40 ft in diameter and with drive power ratings up to 28 MW.

Gearless mill drive system in iron ore ­processing ...

Gearless mill drive system in iron ore ­processing ...

The gearless mill drive 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.

gearless mill drives Archives - International Mining

gearless mill drives Archives - International Mining

The gearless mill drive (GMD) has been continuously developed since its introduction in 1969. The structural design, the electrical parts and of course motor monitoring and control have all experienced major developments that have enabled larger, more efficient operations and higher productivity.