What happens when the compressed air supply fails during the manufacturing process? Simply put, if a gripper is not equipped with a securing mechanism, the gripped parts will fall and cause unwanted damage.
For this reason, we have now developed two additional versions of the PG 16 precision gripper featuring gripping force securing mechanisms. In the event of the compressed air supply failing, a spring will now prevent the gripped parts from being lost.
With the new PG 16 NC precision gripper, the holding force takes effect when the gripper is closed after a part is gripped from the outside. Conversely, with the PG 16 NO the force of the retaining spring takes effect when the gripper is opened after a part is gripped from the inside.
NC stands for Normally Closed, which literally means that the gripper jaws are “normally closed”. NO stands for Normally Open, which has the opposite meaning: the gripper jaws are open as standard. The previous PG 16 is given the suffix of NN (Normally None), as it has no form of gripping force securing.
With regard to both external and internal gripping tasks, these grippers represent a smart upgrade of the tried-and-tested PG 16. Therefore, just like the standard PG 16 NN version, they impress with their compact design and high output density. The highly precise jaw guidance boasts a repeat accuracy of +/-0.01 mm and a handling accuracy of +/-0.05 mm in any installation position. As a result of the newly integrated gripping force securing, the size of the parallel grippers has slightly changed. The low weight, extremely high precision and fastest gripping times are the key stand-out features of PG 16 grippers.
Additional information on the PG 16 grippers can be found here.