MK series cylinders move down while rotating 90° from the upper end and then move to the lower end in a straight line after the rotary stroke. The rotary stroke portion of MK series cylinders is designed to rotate as the spiral groove on the rod and the guide pin engage.

The MK series catalog can be found here.
And the MK2T series catalog can be found here.

SMC's MK-Z has an allowable moment of inertia 3 times higher than the conventional MK and MK2 styles.  The overall length is the same as the conventional styles, and mounting dimensions are interchangeable with the MK series. 

SMC's MK-Z has an allowable moment of inertia 3 times higher than the conventional MK and MK2 styles.  The overall length is the same as the conventional styles, and mounting dimensions are interchangeable with the MK series. 

SMC's MK-Z has an allowable moment of inertia 3 times higher than the conventional MK and MK2 styles.  The overall length is the same as the conventional styles, and mounting dimensions are interchangeable with the MK series. 

SMC's MK-Z has an allowable moment of inertia 3 times higher than the conventional MK and MK2 styles.  The overall length is the same as the conventional styles, and mounting dimensions are interchangeable with the MK series. 

SMC's MK-Z has an allowable moment of inertia 3 times higher than the conventional MK and MK2 styles.  The overall length is the same as the conventional styles, and mounting dimensions are interchangeable with the MK series. 

SMC's MK-Z has an allowable moment of inertia 3 times higher than the conventional MK and MK2 styles.  The overall length is the same as the conventional styles, and mounting dimensions are interchangeable with the MK series. 

SMC's MK-Z has an allowable moment of inertia 3 times higher than the conventional MK and MK2 styles.  The overall length is the same as the conventional styles, and mounting dimensions are interchangeable with the MK series. 

SMC's MK-Z has an allowable moment of inertia 3 times higher than the conventional MK and MK2 styles.  The overall length is the same as the conventional styles, and mounting dimensions are interchangeable with the MK series. 

SMC's MK-Z has an allowable moment of inertia 3 times higher than the conventional MK and MK2 styles.  The overall length is the same as the conventional styles, and mounting dimensions are interchangeable with the MK series. 

SMC's MK-Z has an allowable moment of inertia 3 times higher than the conventional MK and MK2 styles.  The overall length is the same as the conventional styles, and mounting dimensions are interchangeable with the MK series. 

SMC's MK-Z has an allowable moment of inertia 3 times higher than the conventional MK and MK2 styles.  The overall length is the same as the conventional styles, and mounting dimensions are interchangeable with the MK series. 

SMC's MK-Z has an allowable moment of inertia 3 times higher than the conventional MK and MK2 styles.  The overall length is the same as the conventional styles, and mounting dimensions are interchangeable with the MK series. 

SMCs MK-Z has an allowable moment of inertia 3 times higher than the conventional MK and MK2 styles. The overall length is the same as the conventional styles, and mounting dimensions are interchangeable with the MK series.

SMCs MK-Z has an allowable moment of inertia 3 times higher than the conventional MK and MK2 styles. The overall length is the same as the conventional styles, and mounting dimensions are interchangeable with the MK series.

SMCs MK-Z has an allowable moment of inertia 3 times higher than the conventional MK and MK2 styles. The overall length is the same as the conventional styles, and mounting dimensions are interchangeable with the MK series.

SMCs MK-Z has an allowable moment of inertia 3 times higher than the conventional MK and MK2 styles. The overall length is the same as the conventional styles, and mounting dimensions are interchangeable with the MK series.

SMCs MK-Z has an allowable moment of inertia 3 times higher than the conventional MK and MK2 styles. The overall length is the same as the conventional styles, and mounting dimensions are interchangeable with the MK series.

SMCs MK-Z has an allowable moment of inertia 3 times higher than the conventional MK and MK2 styles. The overall length is the same as the conventional styles, and mounting dimensions are interchangeable with the MK series.