●SBHA series hydraulic power units are mainly applied to the matched drive of SB/SBD series safety brakes and other single-acting cylinders. One kind of hydraulic power units shall be used for safety brakes when after the type of this hydraulic power unit where add a suffix/1, which can be used to control the releasing and closing of brake at the same time; other kinds of hydraulic power units shall be used for double-mechanism safety brake when after the type of this hydraulic power unit where add a suffix/2, which can be used to control the releasing and closing of brake on each oil circuit at the same time, and also can apply releasing and closing separately. If used for other multiple mechanisms to apply releasing and closing separately, special instructions shall be made when ordered.
●YZB series hydraulic power units are mainly used for the matched drive of YLZ series wheel brakes and YGZ series rail brakes as well as the matched drive of other single-acting cylinder.
●YZBA series hydraulic power units are mainly used for the matched drive of YJA, YJD, YJE and YJJ series rail clamp as well as the matched drive of other single-acting cylinder.
●YZBS series hydraulic power units are mainly used for the matched drive of SBD series safety brakes, and also can be used for the matched drive of other single-acting cylinder.