Airtech pvt ltd introduce diaphragm chucks [sd & scd] that utilise inherent strength of spring action of steel to achieve chucking pressures on jobs. There are no sliding parts, due to which high degree of reliability and long service life is assured and are most used on internal grinding machines where high degree of concentricity accuracy is required. Sd models need power sources, ie, rotating hydraulic or pneumatic cylinders mounted on the rear side of the machine spindles. Scd model is self- contained where cylinders are inbuilt with the chucks.
