Calculate the value for load torque, load inertia, speed, etc. at the motor drive shaft of the mechanism. Refer to page 3 for calculating the speed, load torque and load inertia for various mechanisms. Select a motor type from AC Motors, Brushless DC Motors or Stepping Motors based on the required …

Calculate Tangential Force, Torque, and Machining Power for Face Milling Applications.

Dec 28, 2015· Bucket Elevator Motor Power Calculation If this is your first visit, be sure to check out the FAQ by clicking the link above. You may have to register before you can post: click the register link above to proceed.

Aug 25, 2016· ball mill size calculation Calculate and Select Ball Mill Ball Size for Optimum Grinding . ... load in Calculation of energy required for grinding in a ball mill Printed in The Netherlands ...

In Grinding, selecting (calculate) the correct or optimum ball size that allows for the best and optimum/ideal or target grind size to be achieved by your ball mill is an important thing for a Mineral Processing Engineer AKA Metallurgist to do. Often, the ball used in ball mills is oversize "just in case". Well, this safety factor can cost you much in recovery and/or mill liner wear and tear.

how do calculate moter h p require for ball mill. ... Following the SAG mill will be two 9,000-hp ball mills, each one 20-ft in diam. ... But, it requires manufacturing the largest, most powerful ring gear ever ... Utah Copper near Salt Lake, this mill uses a ring-motor drive, Figure 5.

Telephone：0086-371-67666660 Telephone：0086-371-67666667 Contact Person：Mr.Zhao 0086-13523465141 Fax：00086-371—68125111 Well,there is no precise calculation method that can accurately calculate the specific capacity of the cement ball mill.Here are...

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Calculate the horsepower required for a turning operation based on the feed rate, depth of cut, and cut diameter, which will determine the material removal rate (or metal removal rate). Also required is the unit power, which is a material property describing the amount of power required to cut that material.

How to Calculate RPM Speed. Rotating components appear in every aspect of our daily lives. From car tires to DVDs, many objects do spin around. » More; Ball Mill Calculation Kw And Rpm - Stone … BALL MILL DRIVE MOTOR CHOICES,Though output of the motor …BALL MILL DRIVE MOTOR is ... to a dual pinion gear &helip; » More

In many milling operations, the cutting tool must step over and make several adjacent cuts to complete machining a feature. As a result, a small cusp of material, called a scallop, will remain between these cuts on any surrounding walls or on the machined surface if a ball end mill is used.

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 ...

Following the SAG mill will be two 9,000-hp ball mills, each one 20-ft in diam. and 331/2-ft long, that do the finish grinding. ... 14,000-hp mill in Arizona. In a ring-motor ... ability of ring ...

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' (12.8m) in diameter, powered by a 28 MW (38,000 HP) motor.

To calculate the motor power required for a cylindrical type ball mill, the following formula can be applied : W = 0.04116 x D3 x L x n x (0.6d + 0.4d1) where : W = Required motor power in HP : D = Internal dia of the mill in mtr : L = Internal length of the mill in mtr : d = Specific gravity of grinding media : d1 = Specific gravity of substance

The ball mill is key equipment in grinding industry, especially in mineral ore dressing plants. It is widely used for the cement, the silicate product, new type building material, fire-proof material, chemical fertilizer, black and non-ferrous metal, glass, ceramics and etc.

drawing less than 1 hp (.75 kW), to 16-18 feet diameter, drawing 2100-3900 hp (1550-2900 kW). Feed size is usually ½ inch or less; product size ranges from 500µ to below 5µ. Ball mills work well on hard, brittle materials. They are not as suitable for grinding elastic, ductile or fibrous materials, or for fine grinding in general. Ball mills ...

For an electrically driven motor, the output power is mechanical while the input power is electrical, so the efficiency equation becomes efficiency = mechanical power/electrical input power. Part 2: Selecting Instruments for Electric Motor Power Measurement and Analysis

Milling Speed and Feed Calculator Determine the spindle speed (RPM) and feed rate (IPM) for a milling operation, as well as the cut time for a given cut length. Milling operations remove material by feeding a workpiece into a rotating cutting tool with sharp teeth, such as an end mill or face mill.

how do calculate moter h p require for ball mill. how do calculate moter h p require for ball mill . Ring gear drives huge grinding mill Machine Design. By this summer, a grinding mill that is bigger around than a Boeing 747 will turn chunks of copper ore into gravelsized bits for smelting and refining. Contact Supplier

In order to calculate the driving motor power of ball mills working in cascade the literature recommends a specific formula. The author suggests an additional term which represents the resistance ...

Dec 12, 2016· Ball Mill Design/Power Calculation ... The ball mill motor power requirement calculated above as 1400 HP is the power that must be applied at the mill drive in …

In order to determine the performance you'll need from the motor, there are three factors to calculate; Moment of Inertia, Torque and Speed. (Refer to the below sections on calculations for each.) Once you've calculated the inertia, torque and speed for the motor you'll select the type of motor based on the required specifications.

of the Bond ball mill grindability test. For all model based methods, a reliable method to calculate mill power draw for a given mill is required for the calculation of power draw. Morrell (1996) proposed a mathematical model for autogenous, semi-autogenous and ball mills which is based on the motion of grinding charge inside the mill.

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EURASIAN MINING • 1. 2015 Technology and technics of ore preparation processes 7 feed for the rod mill, i.e. 10000 μm in accordance with Table. The value of P 80 is accepted based on the required grain-size characteristics of the ball mill discharge.

Autogenous mills, semi-autogenous mills and ball mills for … xDry grinding ball mills, xAir separators, … motor power to the mill shell. Ring gear and pinion are usu-ally of the helical type.