德國力士樂REXROTH壓力開關HED8OA-2X/200K14用于安全保護時，將壓力繼電器設置在夾緊液壓缸的一端，液壓泵啟動后，首先將工件夾緊，此夾緊液壓缸的右腔壓力升高，當升高到壓力繼電器的調定值時，壓力繼電器動作，發出電信號使2YA通電，于是切削液壓缸進刀切削。在加工期間，壓力繼電器微動開關的常開觸點始終閉合。若工件沒有夾緊，壓力繼電器2斷開，于是2YA斷電，切削液壓缸立即停止進
德國力士樂REXROTH壓力開關HED8OA-2X/200K14
力士樂壓力繼電器HED8OA2X/100K14A
R901102706 HED 8 OA-2X/100K14
R901106257 HED 8 OA-2X/100K14/12
R901106259 HED 8 OA-2X/100K14A
R901135255 HED 8 OA-2X/100K14A/12
R901106262 HED 8 OA-2X/100K14AS
R901111210 HED 8 OA-2X/100K14AS/12
R901106263 HED 8 OA-2X/100K14ASV
R901141703 HED 8 OA-2X/100K14ASV/12
R901108526 HED 8 OA-2X/100K14AV
R901095551 HED 8 OA-2X/100K14KS
R901145180 HED 8 OA-2X/100K14KSV
R901094159 HED 8 OA-2X/100K14KW
R901153040 HED 8 OA-2X/100K14KWV
R901102711 HED 8 OA-2X/100K14S
R901111201 HED 8 OA-2X/100K14S/12
R901111200 HED 8 OA-2X/100K14SV
R901107367 HED 8 OA-2X/100K14V
R901126668 HED 8 OA-2X/100K14V/12
R901126696 HED 8 OA-2X/100K35KS
R901127461 HED 8 OA-2X/100K35S
R901238187 HED 8 OA-2X/100P030K14AS
R901123283 HED 8 OA-2X/100P040K14S
R901135061 HED 8 OA-2X/100P070K14S
R901137611 HED 8 OA-2X/100XNZ14A
R901202310 HED 8 OA-2X/100XNZ14AS
R901136396 HED 8 OA-2X/100XNZ14S
R901102708 HED 8 OA-2X/200K14
R901106512 HED 8 OA-2X/200K14/12
R901107094 HED 8 OA-2X/200K14A
R901111198 HED 8 OA-2X/200K14A/12
R901106452 HED 8 OA-2X/200K14AS
R901108523 HED 8 OA-2X/200K14AS/12
R901108522 HED 8 OA-2X/200K14ASV
R901141051 HED 8 OA-2X/200K14AV
R901107126 HED 8 OA-2X/200K14KS
R901111197 HED 8 OA-2X/200K14KSV
R901106448 HED 8 OA-2X/200K14KW
R901150699 HED 8 OA-2X/200K14KW/12
R901108245 HED 8 OA-2X/200K14KWV
R901102727 HED 8 OA-2X/200K14S
R901202306 HED 8 OA-2X/200K14S/12
R901107805 HED 8 OA-2X/200K14SV
R901110456 HED 8 OA-2X/200K14V
R901211753 HED 8 OA-2X/200K35A
R901171100 HED 8 OA-2X/200K35S
R901232897 HED 8 OA-2X/200P120K14AS
R901213491 HED 8 OA-2X/200P130K14S
R901214160 HED 8 OA-2X/200P180K14S
R901107923 HED 8 OA-2X/200U120K14S
R901107393 HED 8 OA-2X/200U165K14S
R901108521 HED 8 OA-2X/200U170K14S
R901107318 HED 8 OA-2X/200U180K14S
R901133293 HED 8 OA-2X/200XNZ14
R901202314 HED 8 OA-2X/200XNZ14AS
R901137946 HED 8 OA-2X/200XNZ14S
R901131246 HED 8 OA-2X/350F105K14S
R901171875 HED 8 OA-2X/350F80K14S
R901102710 HED 8 OA-2X/350K14
R901107091 HED 8 OA-2X/350K14/12
R901106455 HED 8 OA-2X/350K14A
R901108518 HED 8 OA-2X/350K14A/12
R901102722 HED 8 OA-2X/350K14AS
R901111192 HED 8 OA-2X/350K14AS/12
R901108517 HED 8 OA-2X/350K14ASV
R901110453 HED 8 OA-2X/350K14ASV/12
R901110452 HED 8 OA-2X/350K14AV
R901107087 HED 8 OA-2X/350K14KS
R901134010 HED 8 OA-2X/350K14KSV
R901102716 HED 8 OA-2X/350K14KW
R901107332 HED 8 OA-2X/350K14KW/12
R901110450 HED 8 OA-2X/350K14KWV
R901102778 HED 8 OA-2X/350K14S
R901108009 HED 8 OA-2X/350K14S/12
R901107922 HED 8 OA-2X/350K14SV
R901186318 HED 8 OA-2X/350K14SV/12
R901107796 HED 8 OA-2X/350K14V
R901110447 HED 8 OA-2X/350K14V/12
R901125561 HED 8 OA-2X/350K35
R901127471 HED 8 OA-2X/350K35A
R901127477 HED 8 OA-2X/350K35AS
R901272251 HED 8 OA-2X/350K35KS
R901127474 HED 8 OA-2X/350K35S
R901181469 HED 8 OA-2X/350P160K14S
R901245027 HED 8 OA-2X/350P250K14S
R901217016 HED 8 OA-2X/350P270K14S
R901171883 HED 8 OA-2X/350U110K14S
德國力士樂REXROTH壓力開關HED8OA-2X/200K14
R901168129 HED 8 OA-2X/350U210K14S
R901126233 HED 8 OA-2X/350XNZ14S
R901101698 HED 8 OA-2X/50K14
R901107793 HED 8 OA-2X/50K14/12
R901106507 HED 8 OA-2X/50K14A
R901110444 HED 8 OA-2X/50K14A/12
R901106499 HED 8 OA-2X/50K14AS
R901110443 HED 8 OA-2X/50K14AS/12
R901110166 HED 8 OA-2X/50K14ASV
R901110164 HED 8 OA-2X/50K14AV
R901110163 HED 8 OA-2X/50K14AV/12
R901102702 HED 8 OA-2X/50K14KS
R901110160 HED 8 OA-2X/50K14KSV
R901102754 HED 8 OA-2X/50K14KW
R901108514 HED 8 OA-2X/50K14KW/12
R901110155 HED 8 OA-2X/50K14KWV
R901102704 HED 8 OA-2X/50K14S
R901155751 HED 8 OA-2X/50K14S/12
R901110149 HED 8 OA-2X/50K14SV
R901110147 HED 8 OA-2X/50K14SV/12
R901117070 HED 8 OA-2X/50K14V
R901109543 HED 8 OA-2X/50K14V/12
R901173249 HED 8 OA-2X/50K35
R901155571 HED 8 OA-2X/50K35S
R901213487 HED 8 OA-2X/50P015K14S
R901244472 HED 8 OA-2X/50R020K14S
R901126235 HED 8 OA-2X/50XNZ14
R901166176 HED 8 OA-2X/50XNZ14AV
R901160979 HED 8 OA-2X/50XNZ14KW
R901151839 HED 8 OA-2X/50XNZ14S
使用方法
首先用于安全保護時，將壓力繼電器設置在夾緊液壓缸的一端，液壓泵啟動后，首先將工件夾緊
，此時夾緊液壓缸的右腔壓力升高，當升高到壓力繼電器的調定值時，壓力繼電器動作，發出電
信號使2YA通電，于是切削液壓缸進刀切削。在加工期間，壓力繼電器微動開關的常開觸點始終閉
合。若工件沒有夾緊，壓力繼電器2斷開，于是2YA斷電，切削液壓缸立即停止進刀，從而避免工
件未夾緊被切削而出事故。[1]
其實用于控制執行元件的順序動作時，液壓泵啟動后，首先2YA通電，液壓缸左腔進油，推動活塞
方向右移。當碰到限位器(或死擋鐵)后，系統壓力升高，壓力繼電器發出電信號，使1YA通電，高
壓油進入液壓缸的左腔，推動活塞右移。這時若3YA也通電，液壓缸的活塞快速右移;若3YA斷電，
則液壓缸的活塞慢速右移，其慢速運動速度由節流閥調節。
再次用于液壓泵卸荷時，壓力繼電器不是控制液壓泵停止轉動，而是控制二位二通電磁閥，將液
壓泵5輸出的壓力油流回油箱，使其卸荷。
zui后用于液壓泵的啟閉時，有兩個液壓泵，高壓小流量泵，低壓大流量泵。當活塞快速下降時，
兩泵同時輸出壓力油。當液壓缸活塞桿抵住工件開始加壓時，壓力繼電器在壓力油作用下發出動
作，觸動微動開關，將常閉觸點斷開，使液壓泵停轉。在加工過程中減慢液壓缸的速度，同時減
少動力消耗。
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