sag mill dual pinion geared drive - room-with-a-view.co.za. inching drive for sag mill. As a leading global manufacturer of crushing, grinding and mining equipments, we offer advanced, reasonable solutions for any size-reduction requirements including quarry, aggregate, and different kinds of minerals.

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

Sag Mill Drives: Girth Gears At 18,000 Hp. The single helical SAG mill girth gear, which is cast in four pieces, has 362 teeth, 0.75 DP, 863.6 mm face width, 12.4 m outside diameter and a 10.5 m diameter bore."The SAG mill is 34 ft. in diameter, dual pinion with 12,000 hp," says Neal Biege Sr., head of global marketing for FL . Get Price

Variable speed drive solutions dedicated to single or dual pinion ring-geared mills offer significant advantages over conventional drives due to their application-specific features. Solutions with low speed motors as well as high speed motors cover all possible configurations available for ring geared mills.

gear drive sag mill vs gearless drive, - fysiozuidlarennl. sag mill dual pinion geared drive Autogenous mills, semi-autogenous mills and ball mills for wet - sag mill dual pinion geared drive,x AEROFALL type dry SAG mills, x Dry grinding ball mills, als industry The grinding mills can be equipped with ring gear pinion drives as well as with the COMBIFLEX® drive The …

We are essentially providing up to twice the power transmission of a conventional dual pinion drive. Gearless mill drive (GMD) technology has further expanded the use of large AG milling allowing Outotec to produce the world's largest SAG mill of 42' in diameter drawing power at 28 MW. Today, Outotec is the world leading supplier ...

1 x 23.5 MW gearless mill drive system (GMD) to power the 40 ft SAG mill ; 2 x 13 MW low-speed dual pinion ring-geared mill drive systems (RMD) to power the plant's 26 ft ball mills; Both drive solutions share many common operation and maintenance features such as frozen charge protection, frozen charge remover, controlled rollback, automatic ...

single- or dual-motor configurations. In this type of application, the pinion is mounted on pillow blocks driven by a low-speed motor or a motor and en-closed gear drive. The gear is mounted on the mill using a flange bolted con-nection (see Figure 2 for one type of flange installation). Both the center distance and alignment are adjustable

The clutch's primary role on the dual-pinion, direct-drive geared mill is to provide smooth starts during mill startup. When the mill is running, the clutch also serves as a torque "circuit breaker," reducing costly repairs and downtime by protecting the pinions and ring gear from potential damage caused by large pieces of grinding material.

For single pinion and dual pinion drives, with 21 MW now a distinct possibility, the probability of pinion changes to a higher mill speed should always be considered when set-ting gear ratios, service factors, and motor power ratings. For gearless drives, motor torque output at the maximum desired operating mill speed and ball charge volume has to

Gears And Pinion For Ball Mill Ball mill pinion alignment pdf riskmark from common ball mills there is a second type of ball ball mill alignment pdf zenith grinding mills and their dual pinion mill how to align ball mill pinion to drive motor sag mill ball mill ring gear dual pinion drive systems variable speed introduction alignment . Get Price

— Ball mills, semi-autogenous (SAG) mills, high pressure grinding rolls (HPGR), ring-geared mill drives (RMD) and gearless mill drives (GMD) — Ball/SAG mills with up to 8'000 kW per motor, typically geared solutions ('high-speed') using asynchronous motors with 6-8 poles and rated speed 1'000 – 1'800 rpm

Dual pinion sag mill huisarts vansichemnl. Ball Mill Failure Modes stundengebet SAG mill, ball mill, ring gear, dual pinion, drive systems, variable Chat With Sal Chat With Sal ball mill failure modes OptonClinic Ball Mill Ball mills are used primary for single stage fine grinding, regrinding, and as the second stage in two stage grinding circuits According to the need of Chat

crushers, flotation cells, geared and gearless slurry pumps and mill, Electrical Package for Mining Plan 4, Dual Pinion SAG Mill - 2x LSS Motor + Airclutch Load Sharing System, WEG's solutions reduce maintenance to a minimum.

All parameters above are good for a 22.5MW to 24MW dual pinion SAG mill drive. Changes to AGMA standard have revitalised the large gear cutting industry and soon a machine shop in Holland will be able to fabricate gears of the following parameters: 20 meters in diameter = 65.6 feet 1.5 meters in face width 400 tonnes of machined weight.

developed for single pinion or dual pinion applications depending on the power of the driven mill. High speed solution ... General overview of the high speed and low speed drive system solutions for gear driven mills (single or dual pinion) (Ingeteam). ... The breakage rate function shape of the SAG mill is largely governed by the mill load ...

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 (11 MW) is currently the largest twin pinion single drive mill installed in Australia. Problems have been experienced with the twin pinion drive at Fimiston and with the ...

ABB's complete scope of supply included two dual pinion low-speed mill drive systems for a 34', 2 x 5.2 MW SAG mill and a 24' 2 x 7 MW ball mill, engineering and commissioning. The drive systems are comprised of transformers, ACS 6000 MV frequency converters, synchronous motors, advanced mill control, operations and maintenance features ...

Ring-Geared Mill Drives - Flexible and smooth operation - Brochure (English - pdf - Brochure) Copper Mountain: Overview on the grinding mills and their dual pinion mill drives (English - pdf - Technical publication) Measuremens at a state of the art 2x5 MW dual pinion mill drive (English - pdf - Technical publication)

The biggest characteristic of the sag mill is that the crushing ratio is large. The particle size of the materials to be ground is 300 ~ 400mm, sometimes even larger, and the minimum particle size of the materials to be discharged can reach 0.1 mm. The calculation shows that the crushing ratio can reach 3000 ~ 4000, while the ball mill's ...

The comparison of a conventional drive train to a gearless drive for a grinding mill is shown in Fig. 1. Figure 1 – Top view of SAG-Mills with alternative drive options; left side: dual pinion drive including motor, gearbox, pinion and girth gear; right …

ABB ring-geared mill drive solutions correspond to the latest technology and are designed for reliable, long life and low maintenance operation. Different configurations can be designed for sin-gle- and dual-pinion mills. The most economical electrical capital expenditure is provided by ABB's high-speed solution—i.e., a combination of

ABB has successfully commissioned three variable-speed mill drive systems at Thompson Creek Metals' Mount Milligan copper/gold mine in Canada. ABB's delivery included one gearless mill drive system (GMD) for a 40-ft semi-autogenous (SAG) mill and two low-speed dual pinion ring-geared mill drive systems (RMDs) for two 26-ft ball mills; making Mount Milligan's grinding …

DUAL PINION MILL DRIVES The SAG and the two ball mills are gear driven and Copper Mountain selected the sophisticated low speed dual pinion mill drives from ABB to drive these mills. Brief History Sophisticated Dual Pinion Mill Drive Technologies About five years ago, ABB was already the market leader for Gearless Mill Drives (GMD).

sag mill feet diameter iron ore - haushueten-wuppertal.de. Conga The world s first 42-foot diameter 28 MW gearless SAG mill. SAG mill 40 ft 42 ft gearless mill drive GMD SAG manufacture reliability The results of these studies showed that a single line 40 ft SAG mill circuit gave the best project economics .. mill will be the first 42 ft diameter SAG mill in the world.

The obvious solution is to use more pinions, say, four per mill, with each pair coupled to the output shafts of a special single-input/double-output reducer — two reducers and two motors per mill. The problems of load division remain in this case, both in the reducers and in the motors. Another solution is to use the so-called "gearless drive."

Products for SIMINE Pinion mill drives. Siemens provides high-speed drives as well as low-speed drives. Our high-speed drive solutions provide operational flexibility and full modularity. The power ranges from 100 kW to 24 MW. Our low-speed drives reduce wear and help cut energy costs by up to 5%. Offered up to 24 MW, the variable speed of low ...

The clutch's primary role on the dual-pinion, direct-drive geared mill is to provide smooth starts during mill startup. When the mill is running, the clutch also serves as a torque "circuit breaker," reducing costly repairs and downtime by protecting the pinions and ring gear from potential damage caused by large pieces of grinding material.

ABB's solution provides dual pinion mill drives, frozen charge detection, controlled roll back, automatic positioning, variable speed and cascade monitoring functionalities. The dual pinion mill drive is a variable speed technology which will effect low mechanical stress impact on the pinion and ring gear by realizing precise load sharing ...