This paper include the theortical considerations, the stage of constructive element calculus of the "in casing" continuous current electromagnet’s coil and discussion concerning the factors that influence the working of these equipments. This paper is based on concrete case studies that was met in repair operation of "in casing" electromagnet in Electro-Service S.R.L. Bacau, for equipments used to elevate and transport. This paper is useful to the engineers who design, use and repair thus equipments.