A型：配重式卧式卷钢吊具，通过吊具自身的重量分配来满足空载和重载的平衡。产品代号许用负荷SWL卷钢外径卷钢内径卷钢长度自重KgMinMaxMinMaxMinMaxJW2901A-5t90011004506008501000850JW2902A-10t11001300450600105012001050JW2903A-15t12501500450600115013001275JW2904A-20t13501600500650125014001450JW2905A-25t15001750500650130015001800JW2906A-30t16001850500650140016002000B型：内平衡卧式卷钢吊具，通过吊具内置的弹簧伸缩来满足空载和重载的平衡。产品代号许用负荷SWL卷钢外径卷钢内径卷钢长度自重KgMinMaxMinMaxMinMaxJW3001B-15t1250150045060011501300850JW3002B-20t13501600500650125014001000JW3003B-25t15001750500650130015001200JW3004B-30t16001850500650140016001400C型：外平衡卧式卷钢吊具，通过吊具外置的弹簧伸缩来满足空载和重载的平衡。产品代号许用负荷SWL卷钢外径卷钢内径卷钢长度自重KgMinMaxMinMaxMinMaxJW3001C-15t12501500450600115013001080JW3002C-20t13501600500650125014001200JW3003C-25t15001750500650130015001350JW3004C-30t16001850500650140016001550)