... of exciting force:1.5KNaa100KNaa 2,series:2/4/6/8 3,The insulation class :B/F/H 1,Usage:The vibrating ... screw type,spiral type,swing vibrating type and so on.2, Working principleAfter combining power source with vibrating source , ... ),The range of exciting force:1.5KN~100KN(2),series:2/4/6/8(3),The insulation class :B/F ... /H(4),Protection Grade:IP44~IP65(5),The voltage can ...