R901065784 4WS2EM10-52/20B11ET315K8DV；上海韋米機電設備有限公司主營銷售產品，產品實拍，原裝正品，客戶買的安心，用的放心。常用產品現貨供應，歡迎新老客戶詢價采購！

產品簡介：

力士樂REXROTH四通型號的方向伺服閥
4WS.2E...
R901066145 4WS2EM10-52/75B11ET315K8DV
規格 10
組件系列 5X
大工作壓力 315 bar
大流量 180 l/min
用于控制位置、力、壓力或速率的閥
帶機械反饋或機械和電氣反饋的二級伺服閥
第 1 級噴嘴/擋板放大器
用于底板安裝：孔圖按 ISO 4401
干燥的控制電機，液壓液不得弄臟電磁鐵間隙
也用作 3 通結構
無磨損控制閥芯復位元件
在外部控制或通過集成電子元件 (OBE) 控制
閥和集成控制電子元件已進行調節和測試
帶液動力補償的控制閥芯
中心固定的控制閥套，因此對溫度和壓力的敏感性很低
控制閥套上的壓力腔帶有間隙密封，因此無密封圈磨損
第 1 級的過濾器可從外部自由檢修
產品說明
4WS(E)2EM10-5X/...
4WS(E)2EM10-5X 型閥門是電動操作的 2 級伺服方向閥。它們主要用于控制位置、力和速率。
這些閥門由機電轉換器（力矩馬達）、液壓放大器（原理：噴嘴擋板）和套筒（第二級）中的控制閥芯（通過機械反饋連接到力矩馬達）組成。
力矩馬達線圈上的電氣輸入信號通過磁體產生作用于電樞的力，并與彈性管 一起產生扭矩。這導致通過螺栓連接到彈性管的擋板從兩個控制噴嘴之間的中心位置移開，并且在控制閥芯的前側產生壓差。該壓差導致控制閥芯改變位置，并導致壓力油口連接一個執行機構油口，同時，另一個執行機構油口連接到回流油口。
控制閥芯通過彎曲彈簧（機械反饋）連接到擋板或力矩馬達。控制閥芯的位置將改變，直到彎曲彈簧的反饋扭矩和力矩馬達的電磁扭矩達到平衡并且噴嘴擋板系統的壓差變為零。
因此，控制閥芯的行程和伺服閥的流量是與電氣輸入信號成比例來控制的。必須注意的是，流量取決于閥壓降。
外部控制電子元件，4WS2EM10-5X/... 型（單**訂購）
外部控制電子元件（伺服放大器）操作閥門并放大模擬輸入信號（控制值），以便通過輸出信號以流量控制形式驅動伺服閥。
集成控制電子元件，4WSE2EM10-5X/... 型和 4WSE2ED10-5X/... 型
要放大模擬輸入信號，需集成特別針對此閥類型進行過調整的控制電子元件 (10)。它們與力矩馬達蓋帽相連接。閥零位可以通過可從外部檢修的電位計進行調整。
4WSE2ED10-5X/...
對于通過復位彈簧的機械控制，此類型的閥門還配備有電氣閥芯位置檢測和控制裝置。控制閥芯位置由感應式位置傳感器確定。由集成控制電子元件將位置傳感器信號與控制值相比較。任何可能的控制偏差都進行電氣放大，并且作為控制信號饋送到力矩馬達。具有附加電氣反饋時，與純機械型號相比，電氣控制器放大率可在較小信號范圍內達到較高動態值。另外提供的機械反饋可確保在電源故障時，閥芯位于零范圍內。
閥門僅與集成控制電子元件配合使用。閥零位可以通過可從外部檢修的電位計進行調整。
注意：更改零電位可能導致系統損壞，故只能由的專業人員執行。

德國力士樂REXROTH伺服閥訂貨號和型號：
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R901065784 4WS2EM10-52/20B11ET315K8DV
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公示： 因工業液壓、自動化各進口品**備件型號繁多，歐美產品價格實時變化，因此很難實時標出準確價格，請以業務員實際報價單價格為準！ 給您帶來不便敬請諒解。