產品說明：
（1）起重量限製器：也稱超載限位器、shiyizhongnengshiqizhongjibuzhichaofuheyunxingdebaoxianzhuangzhi，dangdiaozhongchaoguoedingqizhongliangshi，tanengzidongdiqieduantishengjigoudedianyuantingchehuofachujingbao。qizhongxianzhiqiyoujixieshihedianzishiliangzhong。 　　（2）力矩限製器：duiyubianfuqizhongji，yidingdefuduzhiyunxuqidiaoyidingdediaozhong

，ruguochaozhong
，qizhongshijiuyouqingfandeweixian。lijuxianzhiqijiushigenjuzhegetedianyanzhichudeyizhongbaohuzhuangzhi。zaimouyidingfudu，ruguodiaowuchaochuleqixiangyingdezhongliang，dianlujiubeiqieduan，shitishengbunengjinxing
，baozhengleqizhongjidewending。lijuxianzhiqiyoujixieshi、電子式和複合式三種。 　　（3）高度限製器：也稱吊鉤高度限位器．一般都裝在起重臂的頭部，當吊鉤滑升到極限位置，便托起杠杆。壓下限位開關，切斷電路停車
，再合閘時，吊鉤隻能下降。 　　（4）行程限製器：fangzhiqizhongjifashengzhuangchehuoxianzhizaiyidingfanweineixingshidebaoxianzhuangzhi。tayibananzhuangzaizhudongtaicheneice，zhuyaoshianzhuangyigekeyibodongbanbadexingchengkaiguan。lingzaiguidaodeduantou（在運行限定的位置）安(an)裝(zhuang)一(yi)個(ge)固(gu)定(ding)的(de)極(ji)限(xian)位(wei)置(zhi)擋(dang)板(ban)，當(dang)塔(ta)吊(diao)運(yun)行(xing)到(dao)這(zhe)個(ge)位(wei)置(zhi)時(shi)，極(ji)限(xian)擋(dang)板(ban)即(ji)碰(peng)觸(chu)行(xing)程(cheng)開(kai)關(guan)的(de)扳(ban)把(ba)
，切(qie)斷(duan)控(kong)製(zhi)行(xing)走(zou)的(de)電(dian)源(yuan)，再(zai)合(he)閘(zha)時(shi)塔(ta)吊(diao)隻(zhi)能(neng)向(xiang)相(xiang)反(fan)方(fang)向(xiang)運(yun)行(xing)。 　　（5）幅度限製器：也(ye)稱(cheng)變(bian)幅(fu)限(xian)位(wei)或(huo)幅(fu)度(du)指(zhi)示(shi)器(qi)，一(yi)般(ban)的(de)動(dong)臂(bi)起(qi)重(zhong)機(ji)的(de)起(qi)重(zhong)臂(bi)上(shang)都(dou)掛(gua)有(you)一(yi)個(ge)幅(fu)度(du)指(zhi)示(shi)器(qi)。它(ta)是(shi)由(you)一(yi)個(ge)固(gu)定(ding)的(de)圓(yuan)形(xing)指(zhi)示(shi)盤(pan)，在(zai)盤(pan)的(de)中(zhong)心(xin)裝(zhuang)一(yi)個(ge)鉛(qian)垂(chui)的(de)活(huo)動(dong)指(zhi)針(zhen)。當(dang)變(bian)幅(fu)時(shi)，指(zhi)針(zhen)指(zhi)示(shi)出(chu)各(ge)種(zhong)幅(fu)度(du)下(xia)的(de)額(e)定(ding)起(qi)重(zhong)量(liang)。當(dang)臂(bi)杆(gan)運(yun)行(xing)到(dao)上(shang)下(xia)兩(liang)個(ge)極(ji)限(xian)位(wei)置(zhi)時(shi)
，分(fen)別(bie)壓(ya)下(xia)限(xian)位(wei)開(kai)關(guan)，切(qie)斷(duan)主(zhu)控(kong)電(dian)路(lu)，變(bian)幅(fu)電(dian)機(ji)停(ting)車(che)
，達(da)到(dao)限(xian)位(wei)的(de)作(zuo)用(yong)