Electromatic engineers manufactures and supplies electromagnetic double clutch units [udc series]. The udc series double clutch combination consists of two ufc series clutches in a single housing and through a single tandem shaft.It is manufactured to suit higher frequency of forwarding and reversing mechanism. A combination of clutches is used for reversing revolution of the driven member with driving member turning in one direction. Similarly, combination of clutches is used to increase or decrease the speed during operation without stopping the driving member. Power is supplied simultaneously to the clutch coils. Load is being transferred either by the first or second clutch. At a time, only one clutch gets engaged while the other remains idle.