We deliver our 450x240mm heavy duty boring mill jaws to be used on a heavy duty horizontal turning & boring machine. This machine support workpieces upto 120 metric tons under "chuck-center" setup. A pair of sectional gears are fitted on each jaw to boost effectively the clamping forces generated from operator's driving on the each jaw's screw rod end. With these sectional gear sets only one operator can drive the jaws with enough input torque to obtain high clamping forces. 

This set of heavy duty boring mill jaws are totally custom made as per the relevant features on customer's lathe. Given the T-slot width, distance between T-slots which are parallel to each other, and how the jaw is prevented from retreating, we can custom make the very suitable jaws for any horizontal lathes or vertical lathes/vertical boring mills.

This set of boring mill jaws are totally made of forging steels to assure its high rigidity. The top jaws are hardened with whole quenching process which gives the jaws even hardness about HRC 48 all through the whole jaws. In this way the jaws resist the wearing for a long time, ensuring the reliable clamping on works.