BST model hydraulic booster takes air pressure as main source of transform, and boost air pressure for oil output. The ordinary braking fluid is required (DOT3, DOT4 or above), if you are going to use mineral oil, please inform us in advance. Torque is from 2-36500N.m. This hydraulic booster takes air pressure as main source of transform, and boost air pressure for oil output. 

This BST hydraulic booster there are two kinds, one with with cylinder head, another is without cylinder head. It matches with DBM hydraulic brake, it can effectively increase brake torque accordingly.