Get the same big-log capacity as mega-sized industrial sawmills, but at just a fraction of the price, with the LumberPro HD36 portable sawmill – Mill hardwood and softwood logs up to 36” (90cm) in diameter, slice boards up to 28” (70cm) wide and process wood of any length
Among the many reasons that geared drives on large SAG mills are not favoured, is due to not having an efficient variable speed drive , SER drives are now mature and ready for use on 2 X 10MW dual drive mills Speed variation required is in the range of +/- 15% of , interface between the mill vendor and the gearless motor supplier
reliable drive system for SAG mills Early SAG mills had a diameter of about 32’, later increasing to 34, 36, 38 and 40’ At the same time the mill volume also increased Typically a SAG mill has a much larger diameter compared to its length Yet the SAG mill of Newmont’s Yanacocha mine in Peru is a single stage mill (no ball mill after .
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SAG is an acronym for Semi-Autogenous Grinding SAG mills are autogenous mills but 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' (128m) in diameter, powered by a 28 MW (38,000 HP) motor
COPPER MOUNTAIN: OVERVIEW ON THE GRINDING MILLS AND THEIR DUAL PINION MILL DRIVES ABSTRACT This paper will first give a short overview of the Copper Mountain project in British Columbia, which just has started commercial operation earlier this year The grinding process with one 34' x 20' SAG
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A SAG mill is generally used as a primary or first stage grinding solution Attrition between grinding balls and ore particles causes grinding of finer particl SAG mills are characterized by their large diameter and short length as compared to ball mills SAG mills are primarily used at gold, copper and platinum mines with applications also .
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dual pinion gear driven mill; a Drive 5 - A 5000 HP, 1200 rpm synchronous - induction motor with liquid rheostat and dc field excitation to a dual pinion gear driven mill For the power supply in this study, four different scenarios will be considered as a power system in order to evaluate the different drive systems
Model 3 comes with the option of dual motor all-wheel drive, 20” Performance Wheels and Brakes and lowered suspension for total control, in all weather conditions And a carbon fiber spoiler improves stability at high speeds, all allowing Model 3 to accelerate from 0-60 mph in as little as 32 seconds
both single and dual elements with torque capacities up to 9,300,000 lb-ins (1,050,760 Nm) Reduced initial equipment cost Use of Airflex® clutches makes it possible to drive grinding mills with synchronous mo-tors, or high speed motor and gearbox designs with the clutch mounted on the output shaft of the gearbox, to avoid the need
Application: Ball Mill Equipment: 1 x 44000kW 30 pole 6600 volt Synchronous Motor Location: Kalgoorlie, Western Australia Ernest Henry Mine Application: 1 x 11000kW SAG Mill driven by Dual 5500kW motors, 1 x 5500kW Ball Mill Equipment: 3 x 5500kW 6 pole 11000 volt Wound Rotor Induction Motors Location: Cloncurry, Queensland
Vale operation in Ontario gets upgrades to ore-processing mill , the upgrades to Vale’s existing Clarabelle dual pinion semi-autogenous (SAG) mill will allow it to reduce the size of the ore .
We have more SAG MILLS available also Call us for more details , Motor and Drive Motor: 3000 HP General Electric synchronous - 4000 Volt, 200 RPM, 60 Hz Clutch: dual wide Airflex model 38VC1200 Inching drive: Bonfiglioli model B317M Gears and Bearings Bull gear: 332 teeth X 500 mm face width Pinion gear: 20 teeth X 500 mm face width
Buy used Sag-mills from AM King Industri We can help guide you to the best solution for your equipment needs , HARDINGE-KOPPERS 32' x 12' (975M X 366M) EGL SAG Mill, 6,800 HP dual drive (2 x 2,550 kw) Manufacturer: HARDINGE-KOPPERS Inventory ID: 6C-VI01 , AEROFALL 17' x 5' Sag Mill with 800 HP motor and lube system Manufacturer .
SVEDALA / Model VTM-800-WB Vertimill With 600 KW (805 HP) Motor, UNUSED FL 40' x 25' Gearless SAG Mill, and 26' x 40'6" Ball Mills, BOLIDEN-ALLIS CHALMERS 73m X 274m SAG Mill, 96’ X 194’ EGL Wet Overflow Regrind Ball Mill.
2 d4 TM Mill Drivesystem 7 MW 7 MW 14 MW 28 MW 7 MW 4 MW 7 MW 7 MW 7 MW 4 MW 7 MW 7 MW SAG mill 32 ft single drive The natural progression in gear/pinion mill drives: The QdX4TM Mill Drive provides the next step in the evolution of change in mill drive architecture, while allowing the system to be built with components that are within current manufacturing capabiliti
For SAG Milling, optimizing the throw and converting the available electrical energy (installed motor power) to potential energy (height of throw, trajectory) to kinetic energy (rock breakage) is the key function Therefore, having a speed range available allows this tuning of the SAG mill
installed power to maximise net present value The use of a dual SAG mill arrangement in a cost effective layout added substantial value to the project by increasing both initial and post Year 6 plant throughput for a modest increase in project capital cost when compared with the DFS case of a single 215 MW Gearless Motor Drive (GMD) SAG mill
The Motors & Drives division offers a full range of low and medium voltage motors and adjustable speed driv These products, hallmarked for quality, performance, and durability, can be customized to meet the most demanding applications
Choosing a SAG Mill To Achieve Design Performance John Starkey1, Principal Consulting Engineer Sami Hindstrom2, Manager, Grinding Travis Orser2, Project Manager, Grinding 1 Starkey & Associates Grinding Design and Process Engineering 336 – 268 Lakeshore Rd E Oakville, Ontario L6J 7S4
Autogenous mills, semi-autogenous mills and ball mills for wet grinding A company of Polysius , By using a dual drive system, drive powers of up to 16,000 kW can be trans-ferred Maximum use of identi- , SAG mill Synchronous motor drive with air clutch
the ball mill, but they can also be used as a one-stage grinder The absence of, or reduction in the number of, balls means they can be less costly to operate than ball mills SAG mills of over 40-foot diameter have been constructed Like the ball mill, the AG/SAG mill will have a critical rotation speed above which grinding ceas Mill motor .
ACOUSTIC EMISSIONS MONITORING OF SAG MILL PERFORMANCE SJ Spencer, JJ Campbell, KR Weller and Y Liu CSIRO Minerals, PO Box 883, Kenmore, QLD 4069, Australia
SAG Mill Success—Start with the Basics , Material is crushed underground, stockpiled and then conveyed to a 61 x 41-m SAG mill It is powered by a 23-MW motor and runs with 8%-12% of the mill’s volume filled with 125-mmdiameter steel grinding balls Incoming ore varies in ,
SINGLE STAGE SAG/AG MILLING DESIGN ABSTRACT Single stage semi-autogenous / autogenous (S/AG) milling has become a common design for a variety of ore , This puts the application in the realm of dual motor, dual pinion installations xPower demand of 16 , The SAG mill model in the JKSimMet software has not been shown to accurately reproduce .
The CCV – ring motor (gearless) drive is used at Cadia (20 MW) and Olympic Dam (18 MW) It has been the industry standard for SAG mills above 13 MW capacity However, 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
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 grinding operations combines a robust, service-friendly and fit for purpose design to provide highest throughput, reliability and availability for your processing plant , The motor is fed by .