DLD2 series of slip clutch system without slip ring dry, electricity-work, non-rotating coil, a vice-friction, compact, torque delivery, rapid response, no load loss. Apply high-frequency mechanical action of the drive system can be part of the initiative to make the operation of the driven part of the initiative and part of the on-off, fixed-inch, speed, is a reversal, overload protection, the realization of torque transmission and control campaigns such as the role. Widely applied to machine tools, textile, printing and dyeing, paper making, packaging, construction, shipbuilding, light industrial and office machinery, such as in transmission.