• ### how to calculate torque load of ball mill

Motoring AlongRock Products. Jul 9 2014 When determining how to optimize mining equipment for maximum The torque produced accelerates the load to near synchronous speed. . up by collisions with itself and in the Ball mill by collisions with steel balls.

• ### How to figure out the RPM on an unmarked electric motor

May 04 2008 · Hi all I took an electric motor out of an old printer that I had but it has no markings on it that would refer to the speed of the motor or the voltage. Is there a way to figure it out manually I m trying to build a ball mill and I need to figure out the rpm to calculate the reduction ratio. Thanks

• ### What it is the optimun speed for a ball mill

What it is the optimun speed for a ball mill. Oct 19 2006 · Congratulations on your ball mill Youll want to further reduce your motor speed by 31 to mill more efficiently Right now your RPM is just slightly under

• ### How To Calculate Critical Speed For A Ball Mill

How To Calculate Critical Speed For A Ball Mill. 2019-10-30in solid mechanics in the field of rotordynamics the critical speed is the theoretical angular velocity that excites the natural frequency of a rotating object such as a shaft propeller leadscrew or gear the speed of rotation approaches the objects natural frequency the object begins to resonate which dramatically increases