該系列產品采用鑄鋼機架和動顎，強度高，壽命長。具有破碎比大、產品粒度均勻、結構簡單、工作可靠、維修簡便、運營費用低等特點。廣范應用于礦山、冶煉、建材、公路、鐵路、水利和化學工業等眾多部門，破碎抗壓強度不超過320兆帕的各種物料。PE系列用于粗破，PEX系列用于中細破。

顎式碎破機的(de)工作部分是由兩塊顎(e)(e)(e)(e)(e)板(ban)（定(ding)顎(e)(e)(e)(e)(e)和(he)動(dong)(dong)(dong)(dong)(dong)鄂(e)）組(zu)成(cheng)，定(ding)顎(e)(e)(e)(e)(e)垂直固定(ding)在機體前壁上，動(dong)(dong)(dong)(dong)(dong)鄂(e)位置傾斜與(yu)(yu)定(ding)顎(e)(e)(e)(e)(e)板(ban)形成(cheng)上大下小的(de)破碎(sui)(sui)腔。電動(dong)(dong)(dong)(dong)(dong)機驅動(dong)(dong)(dong)(dong)(dong)皮帶和(he)皮帶輪，通過偏心軸(zhou)使動(dong)(dong)(dong)(dong)(dong)顎(e)(e)(e)(e)(e)上下運動(dong)(dong)(dong)(dong)(dong)，使得動(dong)(dong)(dong)(dong)(dong)顎(e)(e)(e)(e)(e)板(ban)對著(zhu)定(ding)顎(e)(e)(e)(e)(e)做周期性(xing)的(de)循環性(xing)動(dong)(dong)(dong)(dong)(dong)作。當動(dong)(dong)(dong)(dong)(dong)顎(e)(e)(e)(e)(e)上升時肘(zhou)板(ban)和(he)動(dong)(dong)(dong)(dong)(dong)顎(e)(e)(e)(e)(e)間夾角(jiao)(jiao)變大，從而(er)推動(dong)(dong)(dong)(dong)(dong)動(dong)(dong)(dong)(dong)(dong)顎(e)(e)(e)(e)(e)板(ban)向定(ding)顎(e)(e)(e)(e)(e)板(ban)接(jie)近，與(yu)(yu)此同時物(wu)料(liao)(liao)被壓碎(sui)(sui)或(huo)碾搓(cuo)達到(dao)破碎(sui)(sui)目的(de)；當動(dong)(dong)(dong)(dong)(dong)顎(e)(e)(e)(e)(e)下行時，肘(zhou)板(ban)與(yu)(yu)動(dong)(dong)(dong)(dong)(dong)顎(e)(e)(e)(e)(e)間夾角(jiao)(jiao)變小，動(dong)(dong)(dong)(dong)(dong)顎(e)(e)(e)(e)(e)板(ban)在拉桿彈簧的(de)作用下離開定(ding)顎(e)(e)(e)(e)(e)板(ban)，此已破碎(sui)(sui)物(wu)料(liao)(liao)從破碎(sui)(sui)腔下料(liao)(liao)口排出，隨著(zhu)電動(dong)(dong)(dong)(dong)(dong)機連續轉動(dong)(dong)(dong)(dong)(dong)而(er)破碎機動顎(e)作周期(qi)性(xing)的(de)壓碎和排泄物料，實現(xian)連(lian)續作業。