How to culculate torque of the extruder？
The torque of the extruderr is depend from the motor power and the screw speed.

For the single screw extruder，the output torque T=P*9550/n/1.05，P is motor power，9550 is Coefficient，N is Max.screw speed，1.05 means there is 5% energy loss  in transmission process through the reducer.

For the twin screw extruder，the output torque T=P*9550/n/2/1.05， The extra two is because the output torque is given to both screws, and the calculated torque is for a single screw.

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