Staffa HMB radial piston motor 1. Single and low speed, high torque 2. ... Staffa HMB of HMB080.HMB125,HMB200,HMB270,HMB325,HMB400 hydraulic radial piston motor1. Single and low speed, high torque hydraulic motor2 ... torque due to the hydrostatic balance built between the piston, con-rod and eccentric sets which reduces the ... of HMB080.HMB125,HMB200,HMB270,HMB325,HMB400 hydraulic radial piston motor