概述主要用作電力液壓塊式制動器的操作元件，廣泛用于起重、運(yùn)輸冶金建筑等機(jī)械運(yùn)行設(shè)備的機(jī)械制動裝置。技術(shù)參數(shù)型號額定推力(N)額定行程(mm)額定上升時(shí)間(S)電機(jī)額定功率(W)額定下降時(shí)間(S)額定電流(A)無油質(zhì)量(kg)短行程YTD2-230/50230500.41650.30.4221YTD2-300/503002000.40.5823YTD2-500/60500602100.7634YTD2-800/608000.52101.0436YTD2-1250/60125037058YTD2-2000/6020000.75501.4261YTD2-3000/6030007501.8667長行程YTD2-500/1205001200.82500.60.7637YTD2-800/1208003701.0440YTD2-1250/12012501.058YTD2-2000/12020001.15501.4259YTD2-3000/12030007501.8663注：上表中JC均為40%，最大操作頻率短行程均為1200次/h，長行程均900次/h，表中無油質(zhì)量是指采用鑄鐵外殼的質(zhì)量；倘用鋁合金外殼，則無油質(zhì)量為列表值的40%。