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液压传动系统的组成
1、液压动力原件
将动力装置的机械能转换成为液压能的装置，其作用是为液压传动系统提供压力油,是液压传动系统的动力源。例如液压泵。
1.1液压泵
液压泵是液压系统的动力元件，其作用是将原动机的机械能转换成液体的压力能,指液压系统中的油泵，它向整个液压系统提供动力。液压泵的结构形式一般有齿轮泵、叶片泵和柱塞泵。
1.2齿轮泵
齿轮泵即依靠密封在个壳体中的两个或两个以上齿轮,在相互啮合过程中所产生的工作空间容积变化来输送液体的泵。齿轮泵的概念是很简单的，即它的基本形式就是两个尺寸相同的齿轮在一个紧密配合的壳体内相互啮合旋转，这个壳体的内部类似“8”字形，两个齿轮装在里面,齿轮的外径及两侧与壳体紧密配合。来自于挤出机的物料在吸入口进入两个齿轮中间，并充满这一空间，随着齿的旋转沿壳体运动，后在两齿啮合时排出。困油现象齿轮泵要平稳工作，齿轮啮合的重合度必须大于1, 于是总有两对齿轮同时啮合, :并有一部分油液被围困在两对轮齿所围成的封闭容腔之间。这个封闭的容腔开始随着
齿轮的转动逐渐减小，以后又逐渐加大。封闭腔容积的减小会使被困油液受挤压而产生很高的压力，并且从缝隙中挤出，导致油液发热，并致使机件受到额外的负载，而封闭腔容积的增大又造成局部真空，使油液中溶解的气体分离，产生气穴现象。这些都将产生强烈的振动和噪音，这就是齿轮泵的困意现象。
危害：径向不平衡力很大时能使轴弯曲，齿顶与壳体接触，同时加速轴承的磨损，降低轴承的寿命。
消除困油现象方法:通常是在两侧盖板上开卸荷槽，使封闭腔容积诚小时通过左边的卸荷槽与压油腔相通，容积增大时通过右边的卸荷槽与吸油腔相通。
1.3叶片泵
叶片泵即通过叶轮的旋转，将动力机的机械能转换为水能(势能、动能、压能)的水力机械。
叶片泵转子旋转时，叶片在离心力和压力油的作用下，尖部紧贴在定子内表面上。这样两个叶片与转子和定子内表面所构成的工作容积，先由小到大吸油后再由大到小排油，叶片旋转一周时，完成两次吸油与排油。
1.4柱塞泵
柱塞泵即利用柱塞在泵缸体内往复运动，使柱塞与泵壁间形成容积改变，反复吸入和排;出液体并增高其压力的泵。
柱塞泵是液压系统的一个重要装置。它依靠柱塞在缸体中往复运动，使密封工作容腔的容积发生变化来实现吸油、压油。柱塞泵具有额定压力高、结构紧凑、效率高和流量调节方便等优点，被广泛应用于高压、大流量和流量需要调节的场合，诸如液压机、工程机械和船舶中。
力士乐REXROTH液压元件：
力士乐REXROTH泵：轴向柱塞泵（轴向柱塞定量泵、轴向柱塞变量泵）、外啮合齿轮泵、内啮合齿轮泵。摆线泵、叶片泵、径向柱塞泵、电液泵。
力士乐REXROTH马达：径向柱塞马达、轴向柱塞马达（轴向柱塞定量马达、轴向柱塞变量马达）、外啮合齿轮马达。
力士乐REXROTH开/关阀：单向阀（止回阀、截止阀、充液阀）、方向阀（方向座阀、方向滑阀、电磁球阀、换向阀、手动阀、机械阀、电磁阀、电液换向阀）、压力阀（溢流阀、安全阀、减压阀、压力截止阀、压力顺序阀）、流量控制阀（节流阀、流量控制阀、二通流量控制阀）、二通插装阀（插装阀、逻辑阀、插装阀控制盖板）。
力士乐REXROTH比例、高频响和伺服阀：比例方向阀（直动式比例方向阀，比例换向阀，电磁比例阀，电液比例阀，先导式比例方向阀）、比例压力控制阀（比例溢流阀，比例减压阀）、比例流量控制阀、高频响方向阀（直动式高频响应比例阀，高频响应比例换向阀，高频响应比例方向阀、高频响应电液比例阀，先导式高频响应方向阀）、方向伺服阀（伺服阀，四通伺服方向阀，电液比例伺服阀）、比例插装阀（比例方向插装阀、高频响方向插装阀，高频响换向插装阀）、高频响比例伺服阀附件（压力补偿器，平衡阀，插头接线盒，电缆）。
力士乐REXROTH油路块和阀板：底板、盖板、过渡板、叠加阀板、多站油路块、模块化阀板系统、截止阀块、控制阀块
力士乐REXROTH电子元件：阀放大器（比例阀放大器，高响应方向阀放大板，伺服阀放大板，插头式放大器，开/关阀接线盒）、控制值放大器（模拟放大版）、轴调节（集成阀，轴控制器，P/Q阀、数字控制轴、嵌入式控制器，P/Q放大器、模拟定位模块）、泵控制（轴向柱塞泵数字式电子控制装置）、电子元件附件（机架和板卡插槽，电源和稳压设备、测试和维修设备，监测模块，连接插头和电缆，接头）。
力士乐REXROTH系统：泵系统（电动液压控制系统，变速泵驱动装置）。
力士乐REXROTH液压站：标准型液压站、紧凑型液压站、静默液压站、驱动单元、夹紧和驱动模块、电机/泵装配件、蓄能器站、过滤设备、液压站附件（衰减器）。
力士乐REXROTH传感器和信号发送器：压力传感器，电子压力开关、机械压力开关、压力指示单元（压力表，充液压力表）、浮球开关、温度开关、油处理（颗粒监测器、含水量测量单元）、速度传感器、信号编码器、斜盘倾角传感器。
力士乐REXROTH蓄能器：液压气动蓄能器（薄模式蓄能器，皮囊式蓄能器，柱塞式蓄能器）、蓄能器站、蓄能器截止块（蓄能器切断阀）。
力士乐REXROTH过滤器：空气过滤器、油箱安装过滤器/回油管路过滤器、嵌入式过滤器、可通断的双筒过滤器/嵌入式过滤器、油路块安装过滤器、吸油和替换插件过滤器、篮式滤网过滤器、过滤器材料、过滤器元件（过滤器滤芯）、过滤器附件（过滤器维护指示器，密封件）。
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R900313675 SEAL KIT CYH.080/056M D3233
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R900893711 SEAL KIT CYH.080/056M D4085 &
R900889030 SEAL KIT CYH.080/056M D4320
R900768697 SEAL KIT CYH.080/056M D4327
R961003499 SEAL KIT CYH.080/056M D613
R900862655 SEAL KIT CYH.080/056M D699
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R900883657 SEAL KIT CYH.080/056S D2286 &
R900895282 SEAL KIT CYH.080/056S D2779
R900883656 SEAL KIT CYH.080/056S D3256 &
R900737835 SEAL KIT CYH.080/056SF D3819
R900879669 SEAL KIT CYH.080/056T D1551
R900879996 SEAL KIT CYH.080/056T D1691
R900881435 SEAL KIT CYH.080/056T D1867
R900887149 SEAL KIT CYH.080/056T D2211
R900892452 SEAL KIT CYH.080/056T D2506
R900899311 SEAL KIT CYH.080/056T D3151
R900856220 SEAL KIT CYH.080/056T D362
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R900882050 SEAL KIT CYH.080/056T D737
R961001553 SEAL KIT CYH.080/056T D875
R900859674 SEAL KIT CYH.080/056X D16
R900859673 SEAL KIT CYH.080/056X D18
R900885151 SEAL KIT CYH.080/056X D2044
R900889531 SEAL KIT CYH.080/056X D2341
R900890095 SEAL KIT CYH.080/056X D2361
R900893862 SEAL KIT CYH.080/056X D2652
R900896138 SEAL KIT CYH.080/056X D2888
R900897713 SEAL KIT CYH.080/056X D3000
R900313636 SEAL KIT CYH.080/056X D3227
R900713347 SEAL KIT CYH.080/056X D3259
R900713847 SEAL KIT CYH.080/056X D3268
R961000161 SEAL KIT CYH.080/056X D367
R900734259 SEAL KIT CYH.080/056X D3782
R900758537 SEAL KIT CYH.080/056X D4101 &
R900769282 SEAL KIT CYH.080/056X D4282
R900779245 SEAL KIT CYH.080/056X D4437
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R961005242 SEAL KIT CYH.080/056X D7585
R961005069 SEAL KIT CYH.080/056X D7700
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R961006514 SEAL KIT CYH.080/056X D8000
R961006456 SEAL KIT CYH.080/056X D8068
R961014322 SEAL KIT CYH.080/056X H00037
R961005971 SEAL KIT CYH.100/045T D5545
R961008801 SEAL KIT CYH.100/045V D8656
R961013068 SEAL KIT CYH.100/050S D9975
R900894896 SEAL KIT CYH.100/056A D2743
R900897420 SEAL KIT CYH.100/056A D2964
R900899951 SEAL KIT CYH.100/056A D3208
R900886824 SEAL KIT CYH.100/056B D404
R900886819 SEAL KIT CYH.100/056B D480
R900771054 SEAL KIT CYH.100/056B D49
R900733127 SEAL KIT CYH.100/056K D3423 &
R961013176 SEAL KIT CYH.100/056M D34
R961006443 SEAL KIT CYH.100/056M D475
R900869426 SEAL KIT CYH.100/056M D483
R961008210 SEAL KIT CYH.100/056M D8292
R900770284 SEAL KIT CYH.100/056M-WEGD4308
R900867905 SEAL KIT CYH.100/056S D1056
R900888304 SEAL KIT CYH.100/056S D2275
R900726208 SEAL KIT CYH.100/056S D3447
液压站是由液压泵、驱动用电动机、油箱、方向阀、节流阀、溢流阀等构成的液压源装置或包括控制阀在内的液压装置。按驱动装置要求的流向、压力和流量供油，适用于驱动装置与液压站分离的各种机械上，将液压站与驱动装置（油缸或马达）用油管相连，液压系统即可实现各种规定的动作。
液压站作用液压站一般是为大中型工业生产的机械运行提供润滑、动力的机电装置。
使用液压系统是由于液压系统在动力传递中具有用途广、和构造简单的特点。液压系统的主要任务就是将动力从一种形式转变成另一种形式。
液压站又称液压泵站，电机带动油泵旋转，泵从油箱中吸油后打油，将机械能转化为液压油的压力能，液压油通过集成块（或阀组合）被液压阀实现了方向、压力、流量调节后经外接管路传输到液压机械的油缸或油马达中，从而控制了液动机方向的变换、力量的大小及速度的快慢，推动各种液压机械做功。
液压站是独立的液压装置，它按驱动装置（主机）要求供油，并控制油流的方向、压力和流量，它适用于主机与液压装置可分离的各种液压机械下，由电机带动油泵旋转，泵从油箱中吸油后打油，将机械能转化为液压油的压力能。
用户购买后只要将液压站与主机上的执行机构（油缸和油马达）用油管相连，液压机械即可实现各种规定的动作、工作循环。
机床是指制造机器的机器，亦称工作母机或工具机，习惯上简称机床。一般分为金属切削机床、锻压机床和木工机床等。现代机械制造中加工机械零件的方法很多：除切削加工外，还有铸造、锻造、焊接、冲压、挤压等，但凡属精度要求较高和表面粗糙度要求较细的零件，一般都需在机床上用切削的方法进行终加工。机床在国民经济现代化的建设中起着重大作用。
车床是主要用车刀对旋转的工件进行车削加工的机床。在车床上还可用钻头、扩孔钻、铰刀、丝锥、板牙和滚花工具等进行相应的加工。车床主要用于加工轴、盘、套和其他具有回转表面的工件，是机械制造和修配工厂中使用广的一类机床。
锻压机床
锻压机床是金属和机械冷加工用的设备，他只改变金属的外形状。锻压机床包括卷板机，剪板机，冲床，压力机，液压机，油压机，折弯机等。
液压机是一种以液体为工作介质，根据帕斯卡原理制成的用于传递能量以实现各种工艺的机器。液压机一般由本机（主机）、动力系统及液压控制系统三部分组成。液压机分类有阀门液压机，液体液压机，工程液压机。
液压机（又名：油压机）液压机是一种利用液体静压力来加工金属、塑料、橡胶、木材、粉末等制品的机械。它常用于压制工艺和压制成形工艺，如：锻压、冲压、冷挤、校直、弯曲、翻边、薄板拉深、粉末冶金、压装等等。
它的原理是利用帕斯卡定律制成的利用液体压强传动的机械，种类很多。当然，用途也根据需要是多种多样的。如按传递压强的液体种类来分，有油压机和水压机两大类。
液压机是一种以液体为工作介质，用来传递能量以实现各种工艺的机器。液压机除用于锻压成形外，也可用于矫正、压装、打包、压块和压板等。液压机包括水压机和油压机。以水基液体为工作介质的称为水压机,以油为工作介质的称为油压机。液压机的规格一般用公称工作力（千牛）或公称吨位（吨）表示。锻造用液压机多是水压机，吨位较高。为减小设备尺寸，大型锻造水压机常用较高压强（35兆帕左右），有时也采用 100兆帕以上的超高压。其他用途的液压机一般采用 6～25兆帕的工作压强。油压机的吨位比水压机低。
基本原理是油泵把液压油输送到集成插装阀块，通过各个单向阀和溢流阀把液压油分配到油缸的上腔或者下腔，在高压油的作用下，使油缸进行运动.液压机是 利用液体来传递压力的设备。液体在密闭的容器中传递压力时是遵循帕斯卡定律。四柱液压机的液压传动系统由动力机构、控制机构、执行机构、辅助机构和工作介质组成。动力机构通常采用油泵作为动力机构，一般为积式油泵。为了满足执行机构运动速度的要求， 选用一个油泵或多个油泵。低压（油压小于2.5MP）用齿轮泵；中压（油压小于6.3MP）用叶片泵；高压（油压小于32.0MP)用柱塞泵。各种可塑性 材料的压力加工和成形，如不锈钢板的挤压、弯曲、拉深及金属零件的冷压成形，同时亦可用于粉末制品、砂轮、胶木、树脂热固性制品的压制。
驱动系统
液压机的驱动系统主要有泵直接驱动和泵-蓄能器驱动两种型式。泵直接驱动，这种驱动系统的泵向液压缸提供高压工作液体，配流阀用来改变供液方向，溢流阀用来调节系统的限定压强，同时起安全溢流作用。这种驱动系统环节少,结构简单,压强能按所需的工作力自动增减，减少了电能消耗，但须由液压机的大工作力和高工作速度来决定泵及其驱动电机的容量。这种型式的驱动系统多用于中小型液压机，也有用泵直接驱动的大型（如120000千牛）自由锻造水压机。
泵－蓄能器驱动 在这种驱动系统中有一个或一组蓄能器。当泵所供给的高压工作液有余量时，由蓄能器储存；而当供给量不足于需要时，便由蓄能器补充供给。采用这种系统可以按高压工作液的平均用量选用泵和电动机的容量，但因为工作液的压强是恒定的，电能消耗量较大，并且系统的环节多，结构比较复杂。这种驱动系统多用于大型液压机，或者用一套驱动系统驱动数台液压机。
德国力士乐REXROTH油缸密封件订货号物料号和型号：
R900892966 SEAL KIT CYH.100/056SF D2563
R961000975 SEAL KIT CYH.100/056T D996
R900882194 SEAL KIT CYH.100/056X D1149
R900885038 SEAL KIT CYH.100/056X D1917 &
R900884681 SEAL KIT CYH.100/056X D2045
R900885598 SEAL KIT CYH.100/056X D2147
R900892746 SEAL KIT CYH.100/056X D2553
R900872871 SEAL KIT CYH.100/056X D278
R961003055 SEAL KIT CYH.100/056X D5491
R961004100 SEAL KIT CYH.100/056X D6888
R961005160 SEAL KIT CYH.100/056X D7773
R961011274 SEAL KIT CYH.100/056X D9288
R900746200 SEAL KIT CYH.100/063T D348
R900740068 SEAL KIT CYH.100/063X D3811
R900877854 SEAL KIT CYH.100/070A D1679
R900888592 SEAL KIT CYH.100/070A D2260
R961005899 SEAL KIT CYH.100/070A D7889
R961010824 SEAL KIT CYH.100/070A D9128
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R900886775 SEAL KIT CYH.100/070M D28 MIT WEGGEBER
R900897251 SEAL KIT CYH.100/070M D2958
R900898956 SEAL KIT CYH.100/070M D3100
R900750224 SEAL KIT CYH.100/070M D3961
R900787576 SEAL KIT CYH.100/070M-WEGD115
R900883347 SEAL KIT CYH.100/070S D1954 MIT WEGGEBER
R900723617 SEAL KIT CYH.100/070S D3444
R961007164 SEAL KIT CYH.100/070SF D8211
R900718806 SEAL KIT CYH.100/070T D1217
R900873858 SEAL KIT CYH.100/070T D1435
R900886702 SEAL KIT CYH.100/070T D2157 &
R900892659 SEAL KIT CYH.100/070T D2542
R900712446 SEAL KIT CYH.100/070T D3235
R900714274 SEAL KIT CYH.100/070T D3285
R900727266 SEAL KIT CYH.100/070T D3443
R900888366 SEAL KIT CYH.100/070T D351
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R961005302 SEAL KIT CYH.100/070T D7848
R900766013 SEAL KIT CYH.100/070T-WEGD4261
R900883112 SEAL KIT CYH.100/070TF D1959 MIT WEGGEBER
R900885988 SEAL KIT CYH.100/070TF D2143 &
R900880470 SEAL KIT CYH.100/070X D1022
R900887245 SEAL KIT CYH.100/070X D1269
R961003896 SEAL KIT CYH.100/070X D167
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R900894093 SEAL KIT CYH.100/070X D2686
R900894835 SEAL KIT CYH.100/070X D2739
R900899129 SEAL KIT CYH.100/070X D3103
R900873487 SEAL KIT CYH.100/070X D366
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R961001467 SEAL KIT CYH.100/070X D4972
R961000895 SEAL KIT CYH.100/070X D4983
R961003054 SEAL KIT CYH.100/070X D5499
R961003084 SEAL KIT CYH.100/070X D5834
R961003744 SEAL KIT CYH.100/070X D6526
R961004072 SEAL KIT CYH.100/070X D6823
R961004009 SEAL KIT CYH.100/070X D6829
R961004067 SEAL KIT CYH.100/070X D6860
R961004639 SEAL KIT CYH.100/070X D7272
R961004584 SEAL KIT CYH.100/070X D7280
R961006844 SEAL KIT CYH.100/070X D7382
R961005115 SEAL KIT CYH.100/070X D7577
R961005031 SEAL KIT CYH.100/070X D7602
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R961005383 SEAL KIT CYH.100/070X D7757
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R961005382 SEAL KIT CYH.100/070X D7861
R900871192 SEAL KIT CYH.100/070X D793
R961005625 SEAL KIT CYH.100/070X D7938
R900871190 SEAL KIT CYH.100/070X D796
R961005893 SEAL KIT CYH.100/070X D7968
R961007267 SEAL KIT CYH.100/070X D8281
R961007529 SEAL KIT CYH.100/070X D8340
R961011047 SEAL KIT CYH.100/070X D9179
R900894086 SEAL KIT CYH.100/070X D959
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R961000842 SEAL KIT CYH.100/080M D629
R961007349 SEAL KIT CYH.100/080X D742
R961003371 SEAL KIT CYH.100/090X D5948
R900882197 SEAL KIT CYH.125/056X D862
R961014196 SEAL KIT CYH.125/063X D10303
R961014073 SEAL KIT CYH.125/070A D7713
R900861782 SEAL KIT CYH.125/070K D492
R900879582 SEAL KIT CYH.125/070M D1718
R900881803 SEAL KIT CYH.125/070M D1849
R900883031 SEAL KIT CYH.125/070M D1886
R900884500 SEAL KIT CYH.125/070M D2056
R900882166 SEAL KIT CYH.125/070MF D1408
R900883896 SEAL KIT CYH.125/070MF D2014
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R900889552 SEAL KIT CYH.125/070T D2315
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R900894275 SEAL KIT CYH.125/070X D2338
R900893402 SEAL KIT CYH.125/070X D2456
R900893107 SEAL KIT CYH.125/070X D2586
R900893488 SEAL KIT CYH.125/070X D2650
R900897678 SEAL KIT CYH.125/070X D2979
R900898273 SEAL KIT CYH.125/070X D3009
R961003053 SEAL KIT CYH.125/070X D5500
R961004048 SEAL KIT CYH.125/070X D6841
R961004197 SEAL KIT CYH.125/070X D6933
R961005240 SEAL KIT CYH.125/070X D7815
R961008756 SEAL KIT CYH.125/070X D8651
R961003247 SEAL KIT CYH.125/080M D6080
R900755655 SEAL KIT CYH.125/080T-WEGD4062
R900892931 SEAL KIT CYH.125/080X D2376
R961002906 SEAL KIT CYH.125/080X D5749
R900882433 SEAL KIT CYH.125/090A D1898
R900890845 SEAL KIT CYH.125/090A D2365
R900862987 SEAL KIT CYH.125/090A D31
R900889601 SEAL KIT CYH.125/090B D2351
R900896385 SEAL KIT CYH.125/090K D2898
R900896378 SEAL KIT CYH.125/090K D2899
R961007106 SEAL KIT CYH.125/090L D8239
R961013389 SEAL KIT CYH.125/090M D10101
R900747739 SEAL KIT CYH.125/090M D1320
R900895945 SEAL KIT CYH.125/090M D1418
R900879645 SEAL KIT CYH.125/090M D1742
R900880066 SEAL KIT CYH.125/090M D1777
R900881831 SEAL KIT CYH.125/090M D1860
R900893948 SEAL KIT CYH.125/090M D2609
R900899020 SEAL KIT CYH.125/090M D3134
R900313563 SEAL KIT CYH.125/090M D3183
R900759405 SEAL KIT CYH.125/090M D4117
R900765380 SEAL KIT CYH.125/090M D4164 &
R900853550 SEAL KIT CYH.125/090M D45
R900887020 SEAL KIT CYH.125/090M D828
R900773722 SEAL KIT CYH.125/090M-WEGD4360
R900895863 SEAL KIT CYH.125/090MF D1378
R900883333 SEAL KIT CYH.125/090MF D1976
R900867910 SEAL KIT CYH.125/090S D1059
R900867909 SEAL KIT CYH.125/090S D1061
R900883662 SEAL KIT CYH.125/090S D1955 MIT WEGGEBER
R900768336 SEAL KIT CYH.125/090S D896
R900880864 SEAL KIT CYH.125/090SF D1843
R900892445 SEAL KIT CYH.125/090SF D2493
R900888163 SEAL KIT CYH.125/090T D2210
R900770229 SEAL KIT CYH.125/090T D229
R900893637 SEAL KIT CYH.125/090T D240
R900849628 SEAL KIT CYH.125/090T D43
R961013273 SEAL KIT CYH.125/090T D634
R961001554 SEAL KIT CYH.125/090T D874
R961012444 SEAL KIT CYH.125/090T D9803
R900738709 SEAL KIT CYH.125/090T-WEGD3822
R961013647 SEAL KIT CYH.125/090X D10172
R900878020 SEAL KIT CYH.125/090X D1700
R900891990 SEAL KIT CYH.125/090X D2517
R900893108 SEAL KIT CYH.125/090X D2584
R900896850 SEAL KIT CYH.125/090X D2943
R900898084 SEAL KIT CYH.125/090X D3014
R900899158 SEAL KIT CYH.125/090X D3068 &
R900899411 SEAL KIT CYH.125/090X D3126
R961003052 SEAL KIT CYH.125/090X D5504
R961003078 SEAL KIT CYH.125/090X D5843
R961003612 SEAL KIT CYH.125/090X D5980
R961003859 SEAL KIT CYH.125/090X D6237 &
R961003609 SEAL KIT CYH.125/090X D6346
R961004847 SEAL KIT CYH.125/090X D7468
R961005310 SEAL KIT CYH.125/090X D7807
R900871195 SEAL KIT CYH.125/090X D795
R961011170 SEAL KIT CYH.125/090X D9234
R961011948 SEAL KIT CYH.125/090X D9575
R961012544 SEAL KIT CYH.125/090X D9826
R961004379 SEAL KIT CYH.125/100M D7065
R900891973 SEAL KIT CYH.125/100X D2428
R900892649 SEAL KIT CYH.125/100X D2574
R961002211 SEAL KIT CYH.125/100X D5002
R961008864 SEAL KIT CYH.125/110VF D8657
R961006761 SEAL KIT CYH.125/110X D8132
R961010823 SEAL KIT CYH.140/056X D9337
R900726146 SEAL KIT CYH.140/070M D231
R961004646 SEAL KIT CYH.140/070M D7323
R900745823 SEAL KIT CYH.140/070S D5270
R900882195 SEAL KIT CYH.140/070X D1341
R900894898 SEAL KIT CYH.140/080A D2744
R900895864 SEAL KIT CYH.140/080M D1370
R961003852 SEAL KIT CYH.140/080M D6671
R961004829 SEAL KIT CYH.140/080MF D7446
R900893839 SEAL KIT CYH.140/090A D2554
R900879515 SEAL KIT CYH.140/090K D1583
R900886037 SEAL KIT CYH.140/090K D1945
R900892511 SEAL KIT CYH.140/090K D2532
R900730081 SEAL KIT CYH.140/090K D3422
R900741523 SEAL KIT CYH.140/090K D3805 + CIMS WEGMESSSYSTEM
R900717279 SEAL KIT CYH.140/090M D3291
R961003322 SEAL KIT CYH.140/090M D6040
R961011947 SEAL KIT CYH.140/090M D9567
R900883660 SEAL KIT CYH.140/090S D1953 MIT WEGGEBER
R900876531 SEAL KIT CYH.140/090X D1200
R961011549 SEAL KIT CYH.140/090X D9427
R961012397 SEAL KIT CYH.140/090X D9786
R901007876 SEAL KIT CYH.140/100-100/070X DOPPELZYLINDER
R900768691 SEAL KIT CYH.140/100.MFD4325
R900886817 SEAL KIT CYH.140/100B D396
R900884150 SEAL KIT CYH.140/100C D1086
R900880358 SEAL KIT CYH.140/100K D1729
R900741550 SEAL KIT CYH.140/100K D3806
R900758393 SEAL KIT CYH.140/100M D1068
R900879455 SEAL KIT CYH.140/100M D1644
R900884218 SEAL KIT CYH.140/100M D1965 &
R900884057 SEAL KIT CYH.140/100M D2019
R900882159 SEAL KIT CYH.140/100MF D1400
R900882160 SEAL KIT CYH.140/100MF D1403
R900882161 SEAL KIT CYH.140/100MF D1405
R900883372 SEAL KIT CYH.140/100MF D1988
R900896403 SEAL KIT CYH.140/100MF D2930
R900867911 SEAL KIT CYH.140/100S D1035
R900867912 SEAL KIT CYH.140/100S D1037
R900883661 SEAL KIT CYH.140/100T D1966
R900889040 SEAL KIT CYH.140/100T D2300
R900849629 SEAL KIT CYH.140/100T D42
R961003196 SEAL KIT CYH.140/100T D4561
R900886032 SEAL KIT CYH.140/100TF D2144
R961007025 SEAL KIT CYH.140/100TF D5629
R900893834 SEAL KIT CYH.140/100X D2457
R900892300 SEAL KIT CYH.140/100X D2520
R900898033 SEAL KIT CYH.140/100X D3015
R900884549 SEAL KIT CYH.140/100X D341
R900763381 SEAL KIT CYH.140/100X D4158
R961003051 SEAL KIT CYH.140/100X D5490
R961003087 SEAL KIT CYH.140/100X D5840
R961003741 SEAL KIT CYH.140/100X D6527 &
R961006513 SEAL KIT CYH.140/100X D8099
R900778868 SEAL KIT CYH.140/100XF D4420
R900892007 SEAL KIT CYH.140/110X D2426
R900892650 SEAL KIT CYH.140/110X D2575
R900752265 SEAL KIT CYH.140/110X D4006
R900885542 SEAL KIT CYH.150/110S D892
R900856648 SEAL KIT CYH.160/056T D377
R900882716 SEAL KIT CYH.160/070X D1918
R961000980 SEAL KIT CYH.160/070X D4718
R900887492 SEAL KIT CYH.160/090A D1289
R900882976 SEAL KIT CYH.160/090A D1352
R961003539 SEAL KIT CYH.160/090M D6264
R900776567 SEAL KIT CYH.160/090X D1483
R961006754 SEAL KIT CYH.160/090X D6060
R961007172 SEAL KIT CYH.160/090X D8213
R900893039 SEAL KIT CYH.160/100A D2608
R900893314 SEAL KIT CYH.160/100K D2571
R900881113 SEAL KIT CYH.160/100M D1858
R900719010 SEAL KIT CYH.160/100M D3352
R961003615 SEAL KIT CYH.160/100M D6207
R961004869 SEAL KIT CYH.160/100M D7481
R961005232 SEAL KIT CYH.160/100MX D7242
R900858643 SEAL KIT CYH.160/100T D20
R900891389 SEAL KIT CYH.160/100T D2425
R900776589 SEAL KIT CYH.160/100T D4382
R900883862 SEAL KIT CYH.160/100T D4447 &
R900897564 SEAL KIT CYH.160/100X D2800
R900744533 SEAL KIT CYH.160/100X D3881
R961000400 SEAL KIT CYH.160/100X D3881
R961004373 SEAL KIT CYH.160/100X D4883
R961003050 SEAL KIT CYH.160/100X D5507
R961003083 SEAL KIT CYH.160/100X D5831
R961005262 SEAL KIT CYH.160/100X D6208
R961005980 SEAL KIT CYH.160/100X D6777
R961004641 SEAL KIT CYH.160/100X D7250
R961004781 SEAL KIT CYH.160/100X D7405
R961004780 SEAL KIT CYH.160/100X D7414
R961005303 SEAL KIT CYH.160/110A D7843
R900882279 SEAL KIT CYH.160/110K D1912 &
R900896589 SEAL KIT CYH.160/110K D2374
R900890980 SEAL KIT CYH.160/110K D2374
R961009518 SEAL KIT CYH.160/110L D9126
R961010761 SEAL KIT CYH.160/110M D1142
R900890735 SEAL KIT CYH.160/110M D1448
R900886000 SEAL KIT CYH.160/110M D2037
R900856221 SEAL KIT CYH.160/110M D364
R961003683 SEAL KIT CYH.160/110M D5643
R961003457 SEAL KIT CYH.160/110M D6103
R961004600 SEAL KIT CYH.160/110M D7261
R961004796 SEAL KIT CYH.160/110M D7406
R900882162 SEAL KIT CYH.160/110MF D1401
R900886592 SEAL KIT CYH.160/110MF D3201 &
R900895048 SEAL KIT CYH.160/110SF D2735
R900899432 SEAL KIT CYH.160/110SF D3110
R900730553 SEAL KIT CYH.160/110T-WEGD3733
R900887260 SEAL KIT CYH.160/110X D1267
R900878017 SEAL KIT CYH.160/110X D1649
R900895862 SEAL KIT CYH.160/110X D2601
R900897974 SEAL KIT CYH.160/110X D3008
R900755766 SEAL KIT CYH.160/110X D4074
R900777907 SEAL KIT CYH.160/110X D4423
R900777908 SEAL KIT CYH.160/110X D4424
R961000988 SEAL KIT CYH.160/110X D5027
R961001491 SEAL KIT CYH.160/110X D5118
R900764968 SEAL KIT CYH.160/110X D5448
R961003049 SEAL KIT CYH.160/110X D5488
R961003085 SEAL KIT CYH.160/110X D5836
R961004037 SEAL KIT CYH.160/110X D6244
R961003506 SEAL KIT CYH.160/110X D6253
R961003602 SEAL KIT CYH.160/110X D6398
R961003610 SEAL KIT CYH.160/110X D6399
R961003614 SEAL KIT CYH.160/110X D6402
R961004047 SEAL KIT CYH.160/110X D6833
R961004206 SEAL KIT CYH.160/110X D6964
R961004355 SEAL KIT CYH.160/110X D7089
R961008758 SEAL KIT CYH.160/110X D7232
R961004821 SEAL KIT CYH.160/110X D7470
R961005386 SEAL KIT CYH.160/110X D7761
R961005484 SEAL KIT CYH.160/110X D7903
R961007970 SEAL KIT CYH.160/110X D8473
R961010869 SEAL KIT CYH.160/110X D9154
R961011233 SEAL KIT CYH.160/110X D9230
R961009872 SEAL KIT CYH.160/110X D9334
R961005024 SEAL KIT CYH.160/110XF D7644
R900886038 SEAL KIT CYH.160/125K D1545
R900881666 SEAL KIT CYH.160/125M D1881
R961001511 SEAL KIT CYH.160/125M D5074
R900736477 SEAL KIT CYH.160/125X D3797
R961004287 SEAL KIT CYH.160/125X D5696
R961005895 SEAL KIT CYH.160/125X D7966
R900879310 SEAL KIT CYH.160/134X D776
R900879311 SEAL KIT CYH.160/134X D777
R961013934 SEAL KIT CYH.160/140R D10240
R961004101 SEAL KIT CYH.160/145X D5947
R961005374 SEAL KIT CYH.180/080M D7854
R961004258 SEAL KIT CYH.180/090M D6994
R900749592 SEAL KIT CYH.180/090S D3945
R961007859 SEAL KIT CYH.180/090T D5615
R900893105 SEAL KIT CYH.180/090X D2587
R961004886 SEAL KIT CYH.180/090X D7474
R961006628 SEAL KIT CYH.180/100-140/100 D6392 TANDEMZYLINDER
R900884295 SEAL KIT CYH.180/110K D2049
R900724747 SEAL KIT CYH.180/110K D3451
R900887986 SEAL KIT CYH.180/110M D2264 &
R900716862 SEAL KIT CYH.180/110M D3290
R900743309 SEAL KIT CYH.180/110M D3868
R900898826 SEAL KIT CYH.180/110T D1000
R961014104 SEAL KIT CYH.180/110X D10272
R961003046 SEAL KIT CYH.180/110X D4923
R961003349 SEAL KIT CYH.180/110X D5927
R961004692 SEAL KIT CYH.180/110X D7340
R900896979 SEAL KIT CYH.180/125A D2967
R900886828 SEAL KIT CYH.180/125B D405
R900886830 SEAL KIT CYH.180/125B D484
R900880357 SEAL KIT CYH.180/125K D1728
R961002054 SEAL KIT CYH.180/125M D5354
R961005259 SEAL KIT CYH.180/125M D7376
R961010838 SEAL KIT CYH.180/125M D9033
R900860886 SEAL KIT CYH.180/125M D92
R900867899 SEAL KIT CYH.180/125S D1041
R900888225 SEAL KIT CYH.180/125T D2279
R900741027 SEAL KIT CYH.180/125T D3856
R900887259 SEAL KIT CYH.180/125X D1268
R900888282 SEAL KIT CYH.180/125X D2188
R900865775 SEAL KIT CYH.180/125X D292
R961004975 SEAL KIT CYH.180/125X D5672
R961003621 SEAL KIT CYH.180/125X D6404
R961003702 SEAL KIT CYH.180/125X D6427
R961004931 SEAL KIT CYH.180/125X D7596
R961005385 SEAL KIT CYH.180/125X D7759
R961008550 SEAL KIT CYH.180/125X D8579
R900747375 SEAL KIT CYH.200/070M-WEGD3941
R900755033 SEAL KIT CYH.200/070S D4069
R900756459 SEAL KIT CYH.200/090T D760
R900893645 SEAL KIT CYH.200/090X D2455
R900898025 SEAL KIT CYH.200/090X D2834
R961007261 SEAL KIT CYH.200/100A D8268
R961012997 SEAL KIT CYH.200/100A D9940
R900887491 SEAL KIT CYH.200/110A D1288
R900896889 SEAL KIT CYH.200/110M D2875
R900755636 SEAL KIT CYH.200/110T D4061
R961003345 SEAL KIT CYH.200/110T D5992
R900895279 SEAL KIT CYH.200/110X D2598
R900899729 SEAL KIT CYH.200/110X D3186
R961009147 SEAL KIT CYH.200/110X D9312
R900867025 SEAL KIT CYH.200/120M D349
R900749606 SEAL KIT CYH.200/125A D3949
R900783903 SEAL KIT CYH.200/125B D3949
R961013986 SEAL KIT CYH.200/125M D10247
R961012265 SEAL KIT CYH.200/125M D9712
R900884133 SEAL KIT CYH.200/125X D1317
R961008757 SEAL KIT CYH.200/125X D4954
R961007457 SEAL KIT CYH.200/125X D5608
R900786061 SEAL KIT CYH.200/140A D1076
R900882977 SEAL KIT CYH.200/140A D1351
R961008302 SEAL KIT CYH.200/140G D8554
R900858641 SEAL KIT CYH.200/140K D19
R900884346 SEAL KIT CYH.200/140K D2050 &
R900876566 SEAL KIT CYH.200/140M D266
R900712391 SEAL KIT CYH.200/140M D3216
R900773565 SEAL KIT CYH.200/140M D4356
R961003170 SEAL KIT CYH.200/140M D5929
R961010811 SEAL KIT CYH.200/140M D9114
R900867104 SEAL KIT CYH.200/140M D981
R900883452 SEAL KIT CYH.200/140S D1956 MIT WEGGEBER
R900898827 SEAL KIT CYH.200/140T D1001
R900775436 SEAL KIT CYH.200/140T D4391
R961007165 SEAL KIT CYH.200/140VF D8212
R900887258 SEAL KIT CYH.200/140X D1266
R900865776 SEAL KIT CYH.200/140X D291
R900898692 SEAL KIT CYH.200/140X D3010
R900728646 SEAL KIT CYH.200/140X D3510
R900778562 SEAL KIT CYH.200/140X D4390
R961004299 SEAL KIT CYH.200/140X D6584
R900746608 SEAL KIT CYH.200/140X D67
R961004027 SEAL KIT CYH.200/140X D6819
R961004232 SEAL KIT CYH.200/140X D6859
R961004233 SEAL KIT CYH.200/140X D6980
R961004251 SEAL KIT CYH.200/140X D7008
R961004619 SEAL KIT CYH.200/140X D7312
R961004920 SEAL KIT CYH.200/140X D7525
R961005389 SEAL KIT CYH.200/140X D7763
R961006533 SEAL KIT CYH.200/140X D7988
R961007171 SEAL KIT CYH.200/140X D8209
R961011267 SEAL KIT CYH.200/140X D9278
R900886591 SEAL KIT CYH.200/140X-HD D2169
R900886593 SEAL KIT CYH.200/140X-ND D2169
R961009576 SEAL KIT CYH.200/160S D9318
R961005710 SEAL KIT CYH.200/180X D5193
R900883303 SEAL KIT CYH.220/085X-HD D1092
R900732366 SEAL KIT CYH.220/085X-HD D3777
R900775238 SEAL KIT CYH.220/085X-HD D4351
R900883304 SEAL KIT CYH.220/085X-ND D1092
R900882278 SEAL KIT CYH.220/090M D1827
R900899223 SEAL KIT CYH.220/090X D2622
R961005082 SEAL KIT CYH.220/100M D7199
R900888006 SEAL KIT CYH.220/110X D2191
R900896583 SEAL KIT CYH.220/110X D2339
R961003500 SEAL KIT CYH.220/125M D6254
R961007249 SEAL KIT CYH.220/125M D7260
R900892168 SEAL KIT CYH.220/125X D2489
R961004274 SEAL KIT CYH.220/125X D6999
R900876616 SEAL KIT CYH.220/140K D1630
R900878344 SEAL KIT CYH.220/140M D1323
R900738770 SEAL KIT CYH.220/140M D1980
R900898154 SEAL KIT CYH.220/140M D3029
R961003561 SEAL KIT CYH.220/140M D6269
R961005263 SEAL KIT CYH.220/140M D7802
R961012264 SEAL KIT CYH.220/140M D9711
R900882156 SEAL KIT CYH.220/140MF D1399
R900882157 SEAL KIT CYH.220/140MF D1402
R900882163 SEAL KIT CYH.220/140MF D1404
R900882158 SEAL KIT CYH.220/140MF D1407
R900889099 SEAL KIT CYH.220/140MF D2299
R961006630 SEAL KIT CYH.220/140X D6697
R961003982 SEAL KIT CYH.220/140X D6747
R961005025 SEAL KIT CYH.220/140X D7678
R961012506 SEAL KIT CYH.220/140X D9826
R900885503 SEAL KIT CYH.220/160K D2101
R900890666 SEAL KIT CYH.220/160M D1284
R900881251 SEAL KIT CYH.220/160M D1841
R900858534 SEAL KIT CYH.220/160M N380940
R900877943 SEAL KIT CYH.220/160T D1686
R900887144 SEAL KIT CYH.220/160T D2156
R900883844 SEAL KIT CYH.220/160TF D1967
R961013604 SEAL KIT CYH.220/160X D10164
R900894432 SEAL KIT CYH.220/160X D2692
R961004243 SEAL KIT CYH.220/160X D7003
R961005384 SEAL KIT CYH.220/160X D7755
R961006584 SEAL KIT CYH.220/180X D6708
R961006585 SEAL KIT CYH.220/180X D6716
R961006586 SEAL KIT CYH.220/180X D7654
R961006587 SEAL KIT CYH.220/180X D7655
R900891693 SEAL KIT CYH.220/200M D30
R961001059 SEAL KIT CYH.220/200X D2684
R961006216 SEAL KIT CYH.220/200X D7380
R961009871 SEAL KIT CYH.220/200X D9324
R900885537 SEAL KIT CYH.240/080X D887
R900882331 SEAL KIT CYH.250/090M D1878
R900897691 SEAL KIT CYH.250/100X D2853
R900877661 SEAL KIT CYH.250/110A D1353
R900895557 SEAL KIT CYH.250/110X D2600
R900896318 SEAL KIT CYH.250/125B D2886
R900771883 SEAL KIT CYH.250/125T D1875
R900879502 SEAL KIT CYH.250/125X D1692
R900749099 SEAL KIT CYH.250/125X D3939
R961004286 SEAL KIT CYH.250/125X D6998
R961003231 SEAL KIT CYH.250/140M D6031
R961003327 SEAL KIT CYH.250/140M D6034
R961003232 SEAL KIT CYH.250/140M-WEGD6032
R961003701 SEAL KIT CYH.250/140T D5617
R961003981 SEAL KIT CYH.250/140X D6746
R961003988 SEAL KIT CYH.250/140X D6781
R900881667 SEAL KIT CYH.250/160K D1872
R900890712 SEAL KIT CYH.250/160K D1872
R900885649 SEAL KIT CYH.250/160K D2100
R900738774 SEAL KIT CYH.250/160M D1979
R900888581 SEAL KIT CYH.250/160M D2306
R900891786 SEAL KIT CYH.250/160M D2486
R900736715 SEAL KIT CYH.250/160M D3783
R900751036 SEAL KIT CYH.250/160M D4009
R900867904 SEAL KIT CYH.250/160S D1048
R900728067 SEAL KIT CYH.250/160T D3482
R900893945 SEAL KIT CYH.250/160X D2632
R900759654 SEAL KIT CYH.250/160X D3610
R961003983 SEAL KIT CYH.250/160X D6749
R961004038 SEAL KIT CYH.250/160X D6779
R961004877 SEAL KIT CYH.250/160X D7171
R961005543 SEAL KIT CYH.250/160X D7859 &
R961007099 SEAL KIT CYH.250/160X D8219
R900881177 SEAL KIT CYH.250/180A D1845
R961003908 SEAL KIT CYH.250/180M D1430
R900884067 SEAL KIT CYH.250/180M D2076
R961005233 SEAL KIT CYH.250/180M D7241
R961008814 SEAL KIT CYH.250/180M D8671
R900881962 SEAL KIT CYH.250/180S D1873
R900879604 SEAL KIT CYH.250/180T D1756
R961014376 SEAL KIT CYH.250/180V H00025
R900893944 SEAL KIT CYH.250/180X D2636
R900761195 SEAL KIT CYH.250/180X D4145
R961003466 SEAL KIT CYH.250/180X D6164
R961004302 SEAL KIT CYH.250/180X D6596
R961005533 SEAL KIT CYH.250/180X D6736
R961003997 SEAL KIT CYH.250/180X D6818
R901001841 SEAL KIT CYH.250/200X-ND D4493
R900887700 SEAL KIT CYH.250/220T D2208 &
R961004026 SEAL KIT CYH.250/220X D6853
R961006713 SEAL KIT CYH.250/220X D7641
R961007664 SEAL KIT CYH.250/220X D8328
R961005298 SEAL KIT CYH.280/140A D7506
R961003541 SEAL KIT CYH.280/140M D6267
R900776085 SEAL KIT CYH.280/140T-WEGD4334
R900749909 SEAL KIT CYH.280/160M D4001
R961003119 SEAL KIT CYH.280/160M D5072
R961005234 SEAL KIT CYH.280/160M D7238
R961004065 SEAL KIT CYH.280/160X D6549
R961006515 SEAL KIT CYH.280/160X D7992
R961005891 SEAL KIT CYH.280/160X D8005
R900877987 SEAL KIT CYH.280/180M D1701
R900753925 SEAL KIT CYH.280/180M D4025
R900887797 SEAL KIT CYH.280/180X D2190
R900889012 SEAL KIT CYH.280/180X D2302
R900760318 SEAL KIT CYH.280/180X D3611
R961003990 SEAL KIT CYH.280/180X D6778
R961012373 SEAL KIT CYH.280/180X D7193/D7194
R900877333 SEAL KIT CYH.280/200M D1696
R900772428 SEAL KIT CYH.280/200T D4347
R961009758 SEAL KIT CYH.280/200T D9321
R961014158 SEAL KIT CYH.280/200V D10296
R900775897 SEAL KIT CYH.280/200X D4384
R961002180 SEAL KIT CYH.280/200X D4847
R961003359 SEAL KIT CYH.280/200X D5100
R961004395 SEAL KIT CYH.280/200X D5129
R901183513 SEAL KIT CYH.280/200X D7009
R961004640 SEAL KIT CYH.280/200X D7251
R961012384 SEAL KIT CYH.280/200X D7400
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液压系统是一种以油液作为工作介质，利用油液的压力能并通过控制阀门等附件操纵液压执行机构工作的整套装置，包括动力元件、执行元件、控制元件、辅助元件（附件）和液压油。原动机的输出特性往往不能和执行机构的要求（力，速度，位移）理想匹配。因此，就需要某种传动装置，将原动机的输出量进行适当变换，使其满足工作机构的要求。液压系统就是用液压原理来实现这种变换功能的装置。
液压系统是由液压泵、驱动用电动机、油箱、方向阀、节流阀、溢流阀等构成的液压源装置或包括控制阀在内的液压装置。按驱动装置要求的流向、压力和流量供油，适用于驱动装置与液压站分离的各种机械上，将液压站与驱动装置（油缸或马达）用油管相连，液压系统即可实现各种规定的动作。
液压站又称液压泵站，电机带动油泵旋转，泵从油箱中吸油后打油，将机械能转化为液压油的压力能，液压油通过集成块（或阀组合）被液压阀实现了方向、压力、流量调节后经外接管路传输到液压机械的油缸或油马达中，从而控制了液动机方向的变换、力量的大小及速度的快慢，推动各种液压机械做功。
液压站是独立的液压装置，它按驱动装置（主机）要求供油，并控制油流的方向、压力和流量，它适用于主机与液压装置可分离的各种液压机械下，由电机带动油泵旋转，泵从油箱中吸油后打油，将机械能转化为液压油的压力能。
