In case of Free Conveyors, if load on the roller exceeds the specified limit, the roller stops moving, but its sprocket keeps moving due to the presence of torque limiter, thus the conveyor keeps moving. Thus in this type of conveyor it is possible to stop the job while the conveyor is moving. Hence Free Conveyors are very useful in conveying jobs.

In case of Powered Conveyors, the rollers stop only after the motor is switched off.