用途：用于收緊拉線，桿塔臨時錯固，收緊或更換絕緣子
特點：套式雙鉤外型結構小，鋁合金雙鉤重量輕，便于攜帶 

型號   額定負荷（KN） 鉤心間最大距離（MM） 調節器節距離（MM） 重量（KG） 備注
SJ-10  10            800            300            2  鋼雙鉤
SJ-20  20            994            360            5.5
SJ-30  30            1300            500            6.5
SJ-50  50            1430       500            8
SJ-80  80            1788            738            12
TSJ-10  10             368            310             3             TSJ-20  20             400            335            3.3
TSJ-30  30             530            500            5.2
TSJ-50  50             550            575            6.5
SJL-10  10             840            280             2 鋁合金雙鉤