23-12-2011How do you compare electric motor power to diesel power? Given 85% efficiency as rule of thumb that suggests it's probably a one and a half HP motor Didn't find any 18inch gas mowers but a 21 inch mower has a three and a half hp briggs and stratton engine

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Get PriceWhen you choose torque this calculator will measure the approximate torque of an engine based on the horsepower multiplied by 5 252 (conversion between foot-pounds and horsepower) divided by the RPM of the engine For example if your engine has 350 horsepower then the torque would be 367 foot-pounds at 5 000 RPM

Get PriceWe provide this calculation form to assist you with assessing the required power for your belt conveyor Belt conveyor motor power calculation Feb 21 2005 hi I am trying to buil a spreadsheet for calculation the required HP of roller conveyors The setup of the conveyor is te following

Get PriceTo Calculate Ball Mill Drive Hp - rainbowoverseascoin to calculate ball mill drive hp The mill used for this comparison is a 44-meter diameter by 136 meter long ball mill with a 5000 HP drive motor get more information More how do calculate moter hp require for ball mill

Get Pricewhich enables us to see how the Attritor fits into the family of mills For example ball mills use large media normally 1/2" or larger and run at a low (10-50) rpm The other mills such as sand bead and horizontal use smaller media from 0 3mm to 2mm but run at a very high rpm (roughly 800-1200)

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Get PriceWhen using a synchronous motor we recommend having 200% starting torque 120% to 130% pull-in torque and 225% pull-out torque These assume no greater than a 10% voltage drop at the motor terminals V-BELT Ball Mill DRIVE V-belt or poly-V drives are generally used on grinding mills consuming 350 HP or less

Get PriceThe high speed grease is also used in motor types M2CA M2FA M2CG and M2FG frame sizes 355 to 400 2-pole machines The following greases can be used for high speed cast iron motors but not mixed with lithium complex greases - Klber Klber Quiet BQH 72-102 (polyurea base) - Lubcon Turmogrease PU703 (polyurea base) If other lubricants are used

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Get PriceModeling the RTD of an industrial overflow ball mill as a Under normal operating conditions the ball load volume is 30% of total mill volume mill speed is 75% Live Chat Grinding efficiency of a ball mill is of the order of Formula To Calculate Ball Mill Volume Loading calculation in filling ratio for ball mill

Get PriceMOTOR FORMULAS AND CALCULATIONS The formulas and calculations which appear below should be used for estimating purposes only It is the responsibility of the customer to specify the required motor Hp Torque and accelerating time for his application

Get PricePower in hp (HP) can be calculated using the following formulas OR HP can be converted to kilowatts as follows HP = Kilowatts X 1 341 dynamic or Two-Plane Balancing Dynamic balancing is strongly recommended in applications running at high speeds To determine whether dynamic balancing is advisable perform the following calculation

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Get PriceIn the most common speed ratings the NEMA designation of medium motors includes ratings of 1/2–500 hp for 2- and 4-pole machines and up to 350 hp for 6-pole machines Temperature rise limits for large motors—i e those above medium motor ratings—differ based on the service factor (SF)

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Get Price1-5-2000Most motors are Design B although the standard also defines Designs A C and D Common headings on nameplates include "Des " "NEMA Design " and "Design " Some motors may not conform to any torque-current characteristics defined in MG 1 The motor manufacturer may assign them a letter that is not a defined industry standard

Get PriceEng Guide Index The KWS Dragon-Flite conveyor is an efficient high performance alternative to conventional means of material handling Because the material is moved En-Masse horsepower requirements can be as much as half of that of alternative means of conveyance The Horsepower (HP) requirements of a Dragon-Flite conveyor can be []

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Get Price13-9-2018Is there a formula that gives the Hp required for a bandsaw mill I have seen one for circle mills where the rpm of the saw blade diameter of the sawblade tooth form and feed rate of the wood where used the circle mill calculation maximum Hp was limited by the tooth form in its ability to carry the sawdust out off the cut

Get PriceMotors which are completely integrated into a machine (e g pumps fans and compressors) and simply cannot be tested on their own even if bearings and bearing shields are temporarily used on the drive-end site Motors with integrated frequency converters (compact-drives) if the motor cannot be tested separately from the converter

Get PriceMultiple Pulleys - RPM Reduction To calculate multiple pulley sets where the first driven (large) pulley shaft drives the second driver (small) pulley and so on enter first (small) driver pulley RPM and pulley set diameters and centers separated by commas and - as shown below

Get PriceTorque is the measure of how much immediate rotational force a spindle drive motor can generate a larger diameter 1" end mill would require high torque and low speed When a hydrofoil starts off from the dock it's not up to speed so it requires both HP andtorque until the hull of the boat lifts off the surface

Get PricePower Comparison Between Electric and Gasoline-Powered Bandmills Output shafts are not equal rpm's So the gas engine has to reduce the gearing to equal the rpm of the 10 hp motor use an electric motor I have worked on rolling mills with 2000 hp motors and I can assure you that using gas or diesel would never be an option

Get PriceHow to Figure kW Rating of a 3 Phase Electric Motor Select the first current given for the power calculation For example current 20/10A or 20/10A select 20 amps for the power calculation Multiply the motor voltage by the full-load current The result is in watts

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