The principle of the diaphragm chuck is based on simplicity. It works similar to a disc spring by elastic deformation of the chuck body. Since there are no sliding parts, there is also no friction and therefore no wear.
Due to the shape of the membrane, a constant, sensitively adjustable clamping force is achieved which guarantees the highest precision.
The diaphragm chucks are hermetically sealed and therefore insensitive to dirt.
Automotive Industry
Camshaft Industry
Grinding
Finish Grind
OP20 Operating
No sliding parts means no friction or wear
Simple flexing action allows for consistently controlled concentricity
Inherent strength and accuracy of spring steel is used to achieve chucking pressure on internal or external surfaces
Air is introduced through the spindle and adapter plate by means of a ¼” pipe. When air pressure is applied, the piston moves forward about .030″ and the movement is transmitted to the diaphragm by a push sleeve. As the diaphragm is flexed, the jaws open and the workpiece is loaded. To chuck, the air is turned OFF, and the jaws move toward the relaxed position until jaw contacts the part. Part is located on center. Consistent concentricity is controlled to a maximum runout of 1/3 of the part tolerance.