Hydraulic Clamping Devices for High Precision and High Productivity. Through our quality “Made in INDIA” products and the constant continuing development of the clamping systems, we guarantee you excellent Hydraulic Expanding clamping for your requirements. You will profit from the expertise through our years of experience and development in hydraulic and mechanical special clamping equipment. Rotary CONCENTRIC Clamping Technology. Product features. High precision. High axial run-out accuracy. Radial run-out accuracy. up to 0, 002 mm achievable. High torque transmission. Consistent cylindrical extension. of the bushing within the whole.  clamping range. Reduced tooling set-up expense. (high productivity and workpiece flexibility) Long operating life. High dirt resistivity. Easy to operate. Low investment costs.