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Grinding mill parts - Outotec

The Contender™ Series is our newest line of premium spare parts for non- grinding mills. The line includes grinding mill heads, shells, gears and pinions, main bearings, trunnions, trunnion liners, and more for select machines. For certain designated parts, additional enhancements have been made for increased safety and reliability.


SAG mill Archives - International Mining

The SAG mill agreement has come about as First Majestic ordered a complete new SAG mill package, which, Condor says, is now superfluous to its requirements. The SAG mill has a mill diameter of 24 ft (7.3 m) and an effective grinding length of 18.5 ft and a structural charge mass of 315 t, Condor Gold said.


crown pinion alignment ball mills - SRE Machineries

Align Ball Mill Pinion Gears Vetura Mining machine. Ball Mill Pinion Alignment Sugar Smith Cakes May 10 2017 align ball mill pinion gears as a leading global manufacturer of crushing grinding and mining equipments we offer advanced reasonable solutions for any size get price cement mill alignment 10 may 2017 cr4 thread ball mill girth gear and pinion with all due …


SAG mills (semi-autogenous grinding mills) - Outotec

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 SAG 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 ...


Drive Solutions for the Global Mining Industry

drive application is a dual-pinion SAG mill driven by two 5,000 kW wound rotor induction motors (WRIM). Two TMdrive-10SPRs control motor speed by recovering rotor current and returning the power to the utility supply. Confi gured in a twin motor arrangement, the motors share load in the tandem mill. The Customer Need


CMP Paper 16.10.09 Final

dual pinion solutions were developed to power the mills. However, realization of the dual pinion solution was only possible when load could be evenly shared between the two pinions. When mill diameter and mill power became again increased, only the Gearless Mill Drive (GMD) could be envisaged to cover this requirement above 10 MW.


Semi-autogenous grinding (SAG) mill liner design and ...

reduce packing and ball/liner damage, and to use larger, hence fewer, mill liner parts to reduce downtime at liner change-outs. Key words: Comminution, Grinding, SAG mill, Mill liners Paper number MMP-07-002. Original manuscript submitted online January 2007. Revised manuscript accepted for publica-tion April 2007.


GIRTH GEAR - artec-machine.com

Elastic mill sag by weight of mill balls and materia! to grind A: After temporary alignment of the teeth of pinion and girth gear with the mill empty, Fig. 8a, re-alignment should be undertaken with the mill filled with mill balls, i. e. with reference to the elastic sag in cold con- dition, Fig. 8b.


Major Mines & Projects | Koné (Kone) Project

The SAG mill will be a 9.75 m x 6.86 m EGL variable speed mill fitted with two 6.75 MW twin pinion drives. The SAG mill will be installed with discharge grates which will allow slurry and small pebbles to pass out of the mill. The SAG mill product will flow to a double deck vibrating screen for pebble separation.


Grinding mill upgrades - Outotec

A locked charge detection system can be used to prevent a dropped charge and structural damage to your mill. Our retrofit includes a pinion shaft encoder that measures mill velocity and position at start-up, as well as a control panel with a program logic to disengage the clutch when a locked charge is detected.


Ring gear drives huge grinding mill | Machine Design

The largest ringmotor- driven mill in the world is a 36-ft diam., 16,000-hp SAG mill that processes up to 2,000 tons of ore per hour. Located at Kennecott Utah Copper near Salt Lake, this mill ...


SAG Mill Grinding Circuit Design - 911metallurgist.com

By combining with SAG discharge and screening on the SAG discharge screens, top size control to the ball-mill circuit feed is maintained …


The Effect of Start-Up Load Conditions on Gearbox ...

The location of the damage observed on the low-speed pinion (Fig. 7) corresponds to the damage observed on its mating gear. However, the level of damage on the low-speed pinion is much more se vere than that on the mating, low-speed gear. Since the pinion sees many more cycles than the gear, the disparity in the level of damage is expected.


Sag Mill Maintenance - WOMP

Improvements in SAG mill components such as bearings, liners and even nuts and bolts also help operators achieve higher availability levels by extending the intervals between stoppages for routine repairs and replacement. ..., broken teeth or even complete failure of the gear and pinion. ... An FEA evaluation determines if a worn component is ...


Sag Mill Gear Inspection Services

Sag Mill Pinion Damage arbeitsvertragstuttgartde. Sag Mill Gear Inspection Services Mill Pinion Gears Our high torque high precision integral and nonintegral mill pinions are used in SAG horiontal ball mill and rotary kiln applications across the globe Supplied as an individual component or as a fully optimised system comprising a girth gear ...


EX-4.AP - SEC.gov | HOME

sump. The Ball mill will operate in closed circuit with a cluster of cyclone classifiers. Provision will be made for a portion of cyclone underflow to be recycled to the SAG mill feed if required. The ultimate capacity of the grinding system is 600 dry tph …


On-line Vibration Monitoring System Improves Fault Detection

On this site, the most critical was the semi-autogenous grinding (SAG) mill, which runs 24/7 with a full load. At the moment, because the life of the mine is limited, they are running at full production, occasionally overloading the mill. When the mill stops, the production cannot be recovered, and it is the only mill on the site.


Smooth Operators: Wichita multi-plate clutch technology

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.


Preprint 13-050

SAG mill conference, provided details of the then largest gear drive in operation on a SAG mill (34ft x 18ft) at Escondida 13.4MW, which began operation in 1995. The reason for not having larger gear drives was due to the limitation of gear manufacturers not having access to larger single piece special alloy castings. To the benefit of


ball mills damage

damage happen in ball mill crusher. Sag Mill Pebble Crushersag Mill Pinion DamageSAG mill ball mill ring gear dual pinion terminals that could cause severe damage to the gear 23 Autogenous mill; 24 SAG mill; 25 Pebble mill; More sag mill pebble crusher iron project Stone Damage Ball Mill In Pwer PlantIn stone damage ball mill in pwer plantGrinding mills ball mill …


Ball mill high vibs | AMP Maintenance Forums

Hi Observing high vibs on pressing and lifting pinion DE and NDE bearing on a ball mill. Motor and main GB drive are OK. Clear predominant gear mesh frequency is appearing in the spectrum along with harmonics and side bands. But 1st GMF is predominant. side bands with pinion speed is seen. no GG speed side band was observed Some of the vib data, spectrums and photos …


Service and Inspection Capabilities - Global Physical ...

Drive train alignment if needed, including pinion and girth gear replacement. A full girth gear and pinion assemble preparation for installation can be discussed on a case by case. Supervisory service or a full crew to complete the replacement can be arranged. Pinion alignment, pinion changeout oversite, mill gear oversite for flipping or ...


OPERATION AND MAINTENANCE OF CRUSHER HOUSE …

consist of a crusher followed by a SAG mill followed by a ball mill. In this context, the SAG ... rod gates and rack and pinion gates is provided before screens to permit ... dependent material damage mechanism such as fatigue, corrosion, erosion, etc. 453


ENGINEERING STANDARD SPECIFICATION Ontario

Clarabelle Mill SAG, Rod & Ball Mill Pinion Gear Thermal Acceptance Criteria General Industry Acceptance Guidelines for this size and gearset is as follows:* A. 25 degree Celsius differential across the teeth of the pinion face will most likely result in premature wear and pitting. (serious, shutdown and inspect).


Successful Design of the NICO Grinding Circuit for ...

And whether the total pinion energy (SAG plus ball mill) was sorted by increasing SAG, or by increasing total pinion energy, the result was the same. Taking design numbers from this analysis shows that to grind to a T80 of 1.7mm (from 152mm F80) in a SAG mill will require 29.5 kWh/t in the SAG mill. When ball mill grinding is added,


Inspection/Non Destructive Testing

Non-Destructive Testing (NDT) is the application of measurement techniques in order to identify damage and irregularities in materials. NDT often provides the only method of obtaining information about the current 'health' of process plant. If done well, NDT can provide useful information to assist in the management of plant safety. ...


Gold Seeker Issue #90 ~ This Week In Mining: Earnings ...

Production at Yaramoko was below plan for the quarter, and unplanned downtime due to the premature changeout of a SAG mill pinion bearing in August contributed to lower mill throughput. Further, resequencing of production stopes at the 55 Zone, due to isolated ground conditions causing bridging, which resulted in a reprioritization of lower ...


reasons for ball mill bearings failure

Overview on the grinding mills and their dual pinion mill drives mill and two 24' x 39.5' ball mills will be briefly discussed. .... on the motor terminals that could cause severe damage to the gear, pinions, ... A SAG Mill Control: ...


Smooth Operators

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.


V-Belt Drive Installation and Maintenance Manual

damage or personal injury, proper tensioning, and maintenance of proper tension through out the life of the belt. Placing Belts on Sheaves Shorten the center distance of the drive until the belts can be put on the sheaves without forcing. Forcing the belts can cause internal injury to the belts. (Refer to Tables 1 and 2 for values.)


Sag Mill Pinion Failure - mayukhportfolio.co.in

The resulting mill design was 6.1m dia x 9.05 EGL SAG Mill with a 5.2MW ... with an identical structure, trunnion bearings, girth gear, pinion and pinion bearings. ... design, manufacture, installation, maintenance and failure analysis of heavy...


Mining Weekly - Leading in grinding mill technology

Discussing this new range of products, Calver explains that the Impactmeter (patent pending) is an acoustical instrument developed for the purpose of monitoring impacts inside a SAG mill, ensuring ...


SAG Mill Components - Mineral Processing & Metallurgy

SAG Mill Components. Once the basic operating conditions have been defined for the mill designer then, and only then, can he begin taking into account shell and head stresses and trunnion bearing sizes required to carry the load and to give the required openings for feeding and discharging the mills. Mill heads are key structural components of ...


GROSS POWER CALCULATOR - SMC Testing

Ball Mill AG/SAG Mill min max min max DESIGN DATA diameter inside shell (m) 0.9 7.9 1.8 12.2 belly length inside liners (m) 1.5 12.2 0.5 9.6 liner thickness (mm) 51 152 51 152 diameter inside shell (ft) 3 26 6 40 belly length inside liners (ft) 5 40 1.5 31.5 liner thickness (inch) 2 6 2 6


Sag Mill Syncronis Motor high axial vibration non drive ...

The Pinion drives the Mill through a large girth gear. The pinion has 21 teeth and the girth gear has 376 teeth. ... Re install locking device or a new one if any sign of damage Set motor rotor on mag center and set the locking device ... When the Sag Mill was in operation the clutch operation just did not look ok and pad wear was uneven.


Improved Productivity in Mining. SafeSet Torque-limiting ...

The dual pinion drives can come out of sync due to power problems or disturbances in the motor control system. Frozen charge inside the mill might cause torque peaks or consequential damage. Grinding Ball/Sag/AG Mill, Roller Press HPGR/HRC. 15 2 Challenge If the large pinion-shaped cutter is blocked, vital parts of the