WES-300B河北混凝土伺服萬能材料試驗機采用微機控(kong)制(zhi)電液(ye)伺服閥(fa)加(jia)載、主體(ti)與(yu)控(kong)制(zhi)柜分(fen)置的(de)設計，具有操作方便、工作穩定可靠、試驗精度高、加力平穩的(de)特點，適用于金屬、水(shui)泥(ni)、混凝土、塑料等材(cai)料的(de)拉(la)伸、壓(ya)縮、彎曲、剪切試驗。

     本(ben)設備主體部(bu)分(fen)由(you)(you)(you)高度可(ke)調的(de)支撐架(jia)[由(you)(you)(you)機座(zuo)、絲桿及移動(dong)(dong)(dong)橫(heng)梁(liang)（下鉗口座(zuo)）組成]和(he)工(gong)作框架(jia)[由(you)(you)(you)工(gong)作油(you)缸(gang)、活(huo)塞、臺板、支架(jia)及上(shang)(shang)(shang)橫(heng)梁(liang)（上(shang)(shang)(shang)鉗口座(zuo)）組成]。其工(gong)作原理為：由(you)(you)(you)高壓(ya)(ya)油(you)泵向工(gong)作油(you)缸(gang)供油(you)，通過活(huo)塞運動(dong)(dong)(dong)，推動(dong)(dong)(dong)臺板和(he)上(shang)(shang)(shang)橫(heng)梁(liang)（上(shang)(shang)(shang)鉗口座(zuo)）向上(shang)(shang)(shang)運動(dong)(dong)(dong)，進(jin)行(xing)試(shi)樣的(de)拉(la)伸(shen)或壓(ya)(ya)縮試(shi)驗。拉(la)伸(shen)試(shi)驗在(zai)主機的(de)上(shang)(shang)(shang)橫(heng)梁(liang)與(yu)移動(dong)(dong)(dong)橫(heng)梁(liang)之間進(jin)行(xing)，壓(ya)(ya)縮試(shi)驗在(zai)主機的(de)臺板與(yu)移動(dong)(dong)(dong)橫(heng)梁(liang)之間進(jin)行(xing)。試(shi)驗空間的(de)調整(zheng)通過驅動(dong)(dong)(dong)機構（升(sheng)(sheng)降電機、鏈(lian)輪、鏈(lian)條等）驅動(dong)(dong)(dong)雙絲桿同步旋轉使(shi)移動(dong)(dong)(dong)橫(heng)梁(liang)升(sheng)(sheng)降達到。