1.If temperature of the attached material is below 100 ,please choose normal temperature type .If it is above 100 ,please choose high temperature type.If it is above 600 ,please choose ultra-high temperature type.
2.When power-on sustaining rate is above 60%,please choose high frequency type.
3.When lifting and transporting materials are in water,please choose diving type(depth of diving = 100m).The technical data of diving type electromagnet is the same as that of normal temperature type,so it is not list in catalogue.If customers need diving type,please state clearly when ordering.
4. Environment temperature type-50 ~ 40 ,high temperature type-55 ~80 .Height above sea level is no more than 2,000m.
5. Corollary equipment : when using single unit,choose commutation control equipment and its neccessory equipment according to consumed power(current);when using combination of several units,choose it according to the sum of the consumed power(current)of the combined units.