Festo offers a series of pneumatic and electric grippers for a wide variety of applications. The mechanical grippers are differentiated according to gripping principle. There are bellows grippers, which grip through the deformation of an elastic bellows, parallel grippers, whose gripping movement is done by parallel moving fingers, three-point grippers, which centre when gripping the object and angle or radial grippers, which hold the gripped object through a pivoting movement of the gripper fingers. The far and away most used gripper shape is the parallel gripper due to its simple geometry. Separators are required for the separation of the material supply of the gripper and round out the product range.