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  • What is Engine Torque It s Characteristics Formula

    Mar 12 2019 · Torque= 5252 x HP/RPM. Why is engine torque important Torque and Horse-Power are the twin outputs of an engine. They are related and proportional to each other by speed. The torque-band in an engine curve represents its pulling ability which determines a vehicle s driveability acceleration . Torque is most needed while moving a vehicle from the stand-still and/or climbing a

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  • Roll Torquean overview ScienceDirect Topics

    Roll force and torque Figures 7.8 and 7.9 show the effect of the average bar temperature on the roll force and torque in the first two rolling passes respectively. In each figure the roll force in kN is plotted on the left ordinate the roll torque in kNm on the right ordinate and the temperature is

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  • Calculation of Torque for Drive Pulley of Roller Conveyor

    May 06 2017 · 5.5 HP = 4125W 1500rpm = 157 Radians/second So the torque at the motor is 4125/157 = 26Nm The gearbox reduces rpm and multiplies the torque so torque at the output of the gearbox/drive pulley should be something like.. 26 1500/95 = 410Nm But that could be greatly exceeded. I can think of a lot of ways the torque could be higher for periods of

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  • THE MECHANICS OF TENSION CONTROL

    Torque required to provide a certain level of tension to a web is total tension measured across the web times roll radius. This means the torque driving the unwind shaft must decrease at a linear ratio relative to roll diameter as an unwind roll decreases in size through a machine run to keep tension constant. Conversely the torque driving the

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  • Rolling (metalworking)Wikipedia

    Roll stands holding pairs of rolls are grouped together into rolling mills that can quickly process metal typically steel into products such as structural steel (I-beams angle stock channel stock) bar stock and rails. Most steel mills have rolling mill divisions that convert the semi-finished casting products into finished products.

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  • Solved B1) A Plate (20mm Thick 200 Mm Wide) Is Rolled To

    Given Roll radius = 250 mm and rotational speed = 12 rev/min. The work material has a strength coefficient = 600 MPa and a strain exponent = 0.22. a) Sketch the operation and show any motion with arrow(s) b) Determine roll force roll torque and power required for two rollers.

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  • 1. Hot rolling and rolling defects 1.1 Front and back

    1.4 Roll torque and power Roll torque can be estimated from the rolling force. Torque is equal to force multiplied by the radius at which the force acts. We can assume that the roll force is acting perpendicular to the strip at a radius equal to one half of the projected arc lengt h of contact. For each roll the torque is T = FL/2 Roll power

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  • Experimental investigations of the roll load and roll

    Fig. 1. A standard roll forming mill is used to do experiments the roll load is measured with load cells and the roll torque is measured with a torque sensor during a forming of different steels. Table 1 The materials that have been tested are Docol DC01 (carbon steel) and HyTens SS2333 (stainless steel) Material Thickness (mm) RP0.2 (MPa

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  • Basics of Web Tension Control Summary

    1 = Nip roll velocity E = Elasticity of the material A = Cross sectional area of the material The larger the elasticity (E) the less likely the material is to stretch. For most values of EA use TORQUE CONTROL For stretchy material where E is small speed control can approach being as good as torque control

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  • Torque and power requirement for roller Physics Forums

    Sep 14 2014 · Over the roller a fabric in a roll form is loaded. The fabric roll sits over this roller by means of gravity. The roller has to drive the fabric roll on its circumference feed the fabric end to another machine. Problem 1. What is the torque required to drive the roller at the shaft end. 2.

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  • Hot Rollingan overview ScienceDirect Topics

    The maximum torque of the Hille mill is 3467 Nm andthe maximum load of 50 tonnes. The roll gap is adjusted by a 0.5 hp motor via a worm-wheel screw-down mechanism linked to the top roll. In this paper particular attention is focusedon the roll speed part the mechanical configuration of the experimental hot rolling Hillemill sketches with

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  • Belt Conveyors for Bulk MaterialsFifth EditionChapter 6

    porting a load of 1 000 lbs will require a turning force at the idler roll periphery of from 0.5 to 0.7 lbs to overcome the bearing friction. The milling or churning of the grease in the bearings and the bearing seals will require additional force. This force however is generally independent of the load on the idler roll.

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  • Belt Conveyors for Bulk MaterialsFifth EditionChapter 6

    porting a load of 1 000 lbs will require a turning force at the idler roll periphery of from 0.5 to 0.7 lbs to overcome the bearing friction. The milling or churning of the grease in the bearings and the bearing seals will require additional force. This force however is generally independent of the load on the idler roll.

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  • How to Calculate the Force Needed to Move a Railroad Car

    Railroad cars are used to move a wide range of materials across the United States. Hopper cars carry coal from the mines in Wyoming to coal-fired plants on the East Coast. Automobile transport cars move new vehicles from assembly plants to distribution centers across the country. Passenger cars carry commuters and

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  • Eastwood 1 HP Buff Motor Dual Speed

    3.3 amps for 1720 rpm (1/2 hp) 750W/370W 120 VAC 60 Hz cUL-Listed 3/4" diameter shaft arbor M20 x 2.5 Shaft Thread 26-1/4" wide overall Shaft extends 6-15/16" beyond housing Sealed motor housing One year limited manufacturer s warranty

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  • THE MECHANICS OF TENSION CONTROL

    Torque required to provide a certain level of tension to a web is total tension measured across the web times roll radius. This means the torque driving the unwind shaft must decrease at a linear ratio relative to roll diameter as an unwind roll decreases in size through a machine run to keep tension constant. Conversely the torque driving the

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  • Perl Mills Advantis Roll Mill Polandia Austrelia Stone Crusher

    Perl Mills Advantis Roll Mill Poland. Perl Mills Advantis Roll Mill Poland. Roll mill introduction ill grinding wikipedia mill is a device that breaks solid materials into smaller pieces by grinding crushing or cuttinguch comminution is an important unit operation in many processesere are many different types of mills and many types of materials processed in themmini mill haas automationaas.

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  • What is Torque vs. HorsepowerEngine Power Delivery

    Jan 01 2004 · In round numbers that means the torque peak usually occurs 1 000-2 000 rpm below the horsepower peak-so for power to peak at 5 600 rpm the torque peak

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  • What is the difference between Variable Torque and

    As the speed changes the load torque remains constant and the horsepower changes linearly with speed. Constant torque loads cause motors to draw relatively high current at low speeds when compared to variable torque applications. This is why the same size drive may have a lower HP rating for Constant Torque applications.

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  • What is the difference between Variable Torque and

    As the speed changes the load torque remains constant and the horsepower changes linearly with speed. Constant torque loads cause motors to draw relatively high current at low speeds when compared to variable torque applications. This is why the same size drive may have a lower HP rating for Constant Torque applications.

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  • Roll pass designDefinitions

    Jan 08 2014 · Design a new product to roll on an existing mill. Creating the rolling plan calculating the power and roll loads and analyzing the suitability of the equipment to provide the necessary power and torque and withstand the rolling loads. Extend the size range of products already rolled on an existing mill.

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  • Analysis of the roll hunting force due to hardness in a

    A hot rolling operation is performed to alter the thickness of a metal by passing the material through a pair of rollers forming a gap that is somewhat narrower than the thickness of the material. Therefore the quality of the product is a function of the pressure applied by the rollers. However in this process a roll hunting force occurs in which the rolling force is irregularly changed

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  • V-Belt Drive Selection HandbookBaldor

    formula also shows the relation between torque and HP. Power in hp (HP) can be calculated using the following formulas The selection of a V -belt drive for any application should be based on the nature of the load and the type of driving unit. (Gyratory-Jaw-Roll) Mills (Ball-Rod-Tube) Hoists Rubber Calenders-Extruders-Mills

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  • V-Belt Drive Selection HandbookBaldor

    formula also shows the relation between torque and HP. Power in hp (HP) can be calculated using the following formulas The selection of a V -belt drive for any application should be based on the nature of the load and the type of driving unit. (Gyratory-Jaw-Roll) Mills (Ball-Rod-Tube) Hoists Rubber Calenders-Extruders-Mills

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  • Rolling (metalworking)Wikipedia

    Roll stands holding pairs of rolls are grouped together into rolling mills that can quickly process metal typically steel into products such as structural steel (I-beams angle stock channel stock) bar stock and rails. Most steel mills have rolling mill divisions that convert the semi-finished casting products into finished products.

    Get Price
  • Rolling (metalworking)Wikipedia

    Roll stands holding pairs of rolls are grouped together into rolling mills that can quickly process metal typically steel into products such as structural steel (I-beams angle stock channel stock) bar stock and rails. Most steel mills have rolling mill divisions that convert the semi-finished casting products into finished products.

    Get Price
  • Control Engineering How to select a motor for an

    Positional control or torque control. Variable horsepower and constant torque applications include conveyors cranes and gear-type pumps. In these applications the torque is constant because the load doesn t change. The required horsepower may vary depending on the application which makes constant speed ac and dc motors a good choice.

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  • VF-5/50 50-Taper Mill Vertical MillsHaas CNC Machines

    30.0 hp 22.4 kW Input AC Voltage (3 Phase)Low 220 VAC 220 VAC Full Load Amps (3 Phase)Low 70 A 70 A Input AC Voltage (3 Phase)High 440 VAC 440 VAC Full Load Amps (3 Phase)

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  • Motor sizing made simple Machine Design

    Jan 20 2005 · To size a motor for this kind of application match the motor output rating to the load s torque converted to horsepower where T = torque in lb

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  • How to Calculate Torque on a Shaft Sciencing

    Torque is force applied at an angle to a lever arm that acts to rotate objects about an axis. Torque is the rotational analog of force instead of Fnet = ma the equation is Tnet = Iα. The units of torque are Nm. To calculate shaft torque rely on equations specific to shaft types.

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  • Taper Tension for Rewind Control Definitions Processes

    When the rewind roll diameter doubles again the tension will drop by and additional eighth. For example when the initial tension is 80-lbs and the taper percentage is set to 40 the tension will change from 80-lbs less 20 (i.e. 64-lbs) when the diameter of the rewind roll doubles.

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  • AC induction motor inertia Difference between WK2 and WR2

    Apr 29 2019 · Using inertia to determine torque and acceleration. The distinction between these two inertia equations WR 2 and WK 2 is important because in AC induction motor applications inertia is used to determine the motor torque required to achieve a desired speed within a given time.. T = acceleration torque (lb-ft) W = weight of load to be accelerated (lb)

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  • Ball Mill Design/Power Calculation

    A motor with around 1400 Horse Power is calculated needed for the designed task. Now we much select a Ball Mill that will draw this power.. The ball mill motor power requirement calculated above as 1400 HP is the power that must be applied at the mill drive in order to grind the tonnage of feed from one size distribution. The following shows how the size or select the matching mill required to

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  • Impact Analysis of Roller System Stability for Four-High

    In order to study the hot Compact Strip Production (CSP) four-high mill vibration characteristics and vibration suppression method the roller system structure stability was analyzed and calculated at first in the paper. And then the mill stand gap was measured at field and its influence on roll transverse vibration was analyzed. The drum gear coupling effect on the roller system stability

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  • Pellet Mills 7900 Series CPM

    The 7900 Pellet Mill is the workhorse and go-to pellet mill for many applications. Whether it is hard-running biomass high-capacity animal feeds or anything in between the 7900 is known for its dependability and versatility.

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  • What Is the Formula for RPM It Still Runs

    A small diesel engine produces 3 horsepower with 6 pound-feet of torque at what RPM RPM formula = Horsepower times 5 252 constant (33 000 divided by 3.1416 times 2) divided by torque RPM = 3 HP times 5 252 divided by 6 foot pounds RPM = 15 756 divided by 6 equals 2 626 RPM

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  • Axial Thread Rolling For CNC Lathe Users Modern Machine Shop

    Horsepower--In general if the roll threading head can fit on the machine there s enough horsepower. Where it is still questionable a formula has been developed that can provide a minimum horsepower estimate. It s based on our ½-13 example using 4140 steel (28-34 Rc) (1.037 10-6) T P D S = horsepower Where Constant = (1.037

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