These models of motors can output k linear reciprocating motion both in horizontal and vertical directions, the thrust force of motor is in inverse proportion to the velocity, the faster the motion, the less thrust force, vice versa. The damper in the model of YYJZ-N enables the motor to reverse its motion direction immediately, the brake of a model YYRT-M motor can stop the motor rapidly. With compact structure, high operating reliability and low noise, this kind of model can be widely applied in the industrial production lines etc.