液壓馬達是液壓系統(tǒng)的一種執(zhí)行元件，它將液壓泵提供的液體壓力能轉(zhuǎn)變?yōu)槠漭敵鲚S的機械能(轉(zhuǎn)矩和轉(zhuǎn)速)。液體是傳遞力和運動的介質(zhì)。液壓馬達，亦稱為油馬達，主要應(yīng)用于注塑機械、船舶、起揚機、工程機械、建筑機械、煤礦機械、礦山機械、冶金機械、船舶機械、石油化工、港口機械等。
折疊低速馬達
轉(zhuǎn)速低于500r/min的液壓馬達屬于低速液壓馬達。它的基本形式是徑向柱塞式。低速液壓馬達的主要特點是:排量大，體積大，轉(zhuǎn)速低，可以直接與工作機構(gòu)連接，不需要減速裝置，使傳動機構(gòu)大大簡化，低速液壓馬達的輸出扭矩較大，可達幾千到幾萬Nm，因此又稱為低速大扭矩液壓馬達。

齒輪馬達
齒輪馬達在結(jié)構(gòu)上為了適應(yīng)正反轉(zhuǎn)要求，進出油口相等、具有對稱性、有單外泄油口，將軸承部分的泄漏油引出殼體外;為了減少啟動摩擦力矩，采用滾動軸承;為了減少轉(zhuǎn)矩脈動，齒輪液壓馬達的齒數(shù)比泵的齒數(shù)要多。
齒輪液壓馬達由干密封性差、容積效率較低、輸入油壓力不能過高、不能產(chǎn)生較大轉(zhuǎn)矩。并且瞬間轉(zhuǎn)速和轉(zhuǎn)矩隨著嚙合點的位置變化而變化，因此齒輪液壓馬達僅適合于高速小轉(zhuǎn)矩的場合。一般用于工程機械、農(nóng)業(yè)機械以及對轉(zhuǎn)矩均勻性要求不高的機械設(shè)備上。
MR2800I-N1N1N1N1N0500/58037
MR2800I-P1N1N1N1N0500/58152
MR1800H-F1N1N1S2NX0800/33970
MR1800H-P1T1N1N1N0800/33967
MR1800H-P1N1N1N1N0800/33964
MR1600H-X2N1N1S1NX0800/33963
MR1100G-F1N1N1S2NX1000/33960
MRE1400G-D1N1N1N1NX1000/33959
MR1100G-F1Q1N1N1N1000/33956
MR1100G-N1T1N1N1N1000/33946
MR1100P*/33944
MR250D-P1N1N1N1N
MR1800H-P1N1N1N1N
MR700F-N1N1N1N1N
MR600F-N1N1N1N1N
MRA3500I-P2N1N1N1N
MR1100G-N1N1N1N1N
MR2800I-N1N1N1N1N
MRE3100I-N1N1N1N1N
MR1100G-F1N1N1C1N
MR1100G-F1N1N1S1N
MRTF21500Q-F1N1N1N1N
MRTF21500Q-F1N1N1G1N
MRE5400L-N1N1N1N1N
MR2800I-N1B1V1C1N
MR190C-N1N1N1N1N
MR250D-P1N1N1C1N
MRE1400G-F1N1N1C1N
MRE8200M-F1N1N1N1N
MRE2100H-F1N1N1N1N
HMR4500L-F1N1N1N1N
MR160C-P1N1N1C1N
MR700F-P1N1N1N1N
MR4500L-F1Q1N1N1N
MR700F-F1N1N1S1N
MR4500L-F1Q2N1N1NX
MRC500BN
MRC800BN
MRTF21500Q-F1N1N1G1NX
MRE5400L-F1N1N1N1NX
MRD1100G527-F1N1N1N1NX
MR700F-F1N1N1N1N
MR1100G-F1N1N1N1N
MR73B-N1N1N1N1N
MR300D-N1N1N1N1N
MR600F-D1N1U1N1NX
MR300D-P1N1N1N1N
MRC3500P-D3
MR700F-N1N1N1S1N
MR450E-F1N1N1S1N
MR4500L-P1N1N1N1NX
MR4500L-N1N1N1N1NX
MR160C-P1N1N1N1N
MR450E-F1N1N1N1N
MRTE23000Q-F1N1N1G1NX
MRE2100H-P1Q1N1N1N
MRE800F-N1N1N1N1N
MRE800F-D1N1N1N1N
MR1100G-F1N1N1N1N1000/33943
MRE1400G-F1N1N1N1N1000/33942
MRE1400/1333/233898
MR2800IN1N1N1T1N0401
MR2800P*T/33835
MRE1400N*$B620N*/33818
MR4500/4503/33714
MR3600L-F1N1N1S2NX0301/33620
MR4500L-F1Q2N1N1N0501/33596
MR2800I-F1N1N1S2NX0401/33490
MRE1400P*/33454
MR1800P*T*/33442
MR350P*/33349
MR93B-P1N1N1N1N0000/33325

工作原理，當(dāng)壓力油經(jīng)固定的配油軸4的窗口進入缸體內(nèi)柱塞的底部時，柱塞向外伸出，緊緊頂住定子的內(nèi)壁，由于定子與缸體存在一偏心距。在柱塞與定子接觸處，定子對柱塞的反作用力為 。力可分解為和 兩個分力。當(dāng)作用在柱塞底部的油液壓力為p，柱塞直徑為d，力和之間的夾角為X時，力對缸體產(chǎn)生一轉(zhuǎn)矩，使缸體旋轉(zhuǎn)。缸體再通過端面連接的傳動軸向外輸出轉(zhuǎn)矩和轉(zhuǎn)速。以析的一個柱塞產(chǎn)生轉(zhuǎn)矩的情況，由于在壓油區(qū)作用有好幾個柱塞，在這些柱塞上所產(chǎn)生的轉(zhuǎn)矩都使缸體旋轉(zhuǎn)，并輸出轉(zhuǎn)矩。徑向柱塞液壓馬達多用于低速大轉(zhuǎn)矩的情況下。CALZONI卡桑尼 MR300D-N1T1N1N1N0401
CALZONI卡桑尼 MR190F*/45174
CALZONI卡桑尼 MRE8500N1
CALZONI卡桑尼 MR1600H-D1N1N1N1N0800/34993
CALZONI卡桑尼 MR1800H-N1N1V1C1N0800/34805
CALZONI卡桑尼 MR1100G-D1N1N1T1N1000/34724
CALZONI卡桑尼 MR1800H-F1C1N1N1N0800/34552
CALZONI卡桑尼 MR1600H-P1N1N1C1N0800/34546
CALZONI卡桑尼 MR1100G-P1N1N1T1N1000/34462
CALZONI卡桑尼 MR1800H-D1N1N1C1N0800/34445
CALZONI卡桑尼 MR1600H-F1N1N1T1N0800/34408
CALZONI卡桑尼 MRE1400G-F1N1N1T1N1000/34407
CALZONI卡桑尼 MR1100G-F1N1N1T1N1000/34406
CALZONI卡桑尼 MR1800H-P2N1N1N1N0800/34335
CALZONI卡桑尼 MRE1400P*$FTA/34319
CALZONI卡桑尼 MR1800H-N1N1N1C1N0800/34302
CALZONI卡桑尼 MR1100G-N1N1N1C1N1000/34301
CALZONI卡桑尼 MR1100G-P1N1N1C1N1000/34295
CALZONI卡桑尼 MRE1400/1333/34282
CALZONI卡桑尼 MRE2100H-N1N1U1N1NX0800/34278
CALZONI卡桑尼 MR1800H-P1N1N1T1N0800/34249
CALZONI卡桑尼 MRE2100H-F1N1N1S2NX0800/34222
CALZONI卡桑尼 MR1800H-N1N1N1SNX0800/34065
CALZONI卡桑尼 MR1600H-F1N1N1N1N0800/34063
CALZONI卡桑尼 MR1800H-P1N1N1C1N0800/34055
CALZONI卡桑尼 MR1100G-N1N1N1T1N1000/34049
CALZONI卡桑尼 MR1100G-D1N1N1N1N1000/34008
CALZONI卡桑尼 MRE1400G-F1N1N1S2NX1000/34002
CALZONI卡桑尼 MR1100G-F1N1N1S2NX1000/33991
CALZONI卡桑尼 MR1800H-F1N1N1N1N0800/33989
CALZONI卡桑尼 MRE1400B*/33988
CALZONI卡桑尼 MR1100G-N1N1N1S1NX1000/33980
CALZONI卡桑尼 MRE1400P*/33973
CALZONI卡桑尼 MR1800H-F1N1N1S2NX0800/33970
CALZONI卡桑尼 MR1800H-P1T1N1N1N0800/33967
CALZONI卡桑尼 MR1800H-P1N1N1N1N0800/33964
CALZONI卡桑尼 MR1600H-X2N1N1S1NX0800/33963
CALZONI卡桑尼 MR1100G-F1N1N1S2NX1000/33960
CALZONI卡桑尼 MRE1400G-D1N1N1N1NX1000/33959
CALZONI卡桑尼 MR1100G-F1Q1N1N1N1000/33956
CALZONI卡桑尼 MR1100G-N1T1N1N1N1000/33946
CALZONI卡桑尼 MR1100P*/33944

軸向柱塞泵除閥式配流外，其它形式原則上都可以作為液壓馬達用，即軸向柱塞泵和軸向柱塞馬達是可逆的。軸向柱塞馬達的工作原理為，配油盤和斜盤固定不動，馬達軸與缸體相連接一起旋轉(zhuǎn)。當(dāng)壓力油經(jīng)配油盤的窗口進入缸體的柱塞孔時，柱塞在壓力油作用下外伸，緊貼斜盤，斜盤對柱塞產(chǎn)生一個法向反力p，此力可分解為軸向分力及和垂直分力Q。Q與柱塞上液壓力相平衡，而Q則使柱塞對缸體中心產(chǎn)生一個轉(zhuǎn)矩，帶動馬達軸逆時針方向旋轉(zhuǎn)。軸向柱塞馬達產(chǎn)生的瞬時總轉(zhuǎn)矩是脈動的。若改變馬達壓力油輸入方向，則馬達軸按順時針方向旋轉(zhuǎn)。斜盤傾角a的改變、即排量的變化，不僅影響馬達的轉(zhuǎn)矩，而且影響它的轉(zhuǎn)速和轉(zhuǎn)向。斜盤傾角越大，產(chǎn)生轉(zhuǎn)矩越大，轉(zhuǎn)速越低。4系列變量柱塞泵：
A10VSO18DFR1/31R-PPA12NOO、
A10VSO28DFR1/31R-VPA12N00、
A10VSO45DFR1/32R-PPB12N00、                              
A10VSO71DFR1/32R-VPB22U99 
A10VSO100DFR1/32R-VPB12N00、
A10VSO140DRS/32R-VPB22U99等
A4VSO71DR/30R-PPB13N00 
A4VSO125DR/30R-PPB13N00 
A4VSO180DR/30R-PPB13
A4VSO250DR/30R-PPB13NOO等  
A4VSO40LR2G/10R-PPB13N00 
A4VSO71DFR/10X-PPB13N00 
A4VSO71DR/10X-PPB13N00 
A4VSO71DRG/10X-PPB13N00 
A4VSO71LR2/10R-PPB13N00 
A4VSO71LR2D/10R-PPB13N00 
A4VSO125DFR/22R-PPB13N00 
A4VSO125DR/22R-PPB13N00 
A4VSO125DR/22R-VPB13N00 
A4VSO125LR2/22R-PPB13N00 
A4VSO125LR2G/22R-PPB13N00 
A4VSO125LR2N/22R-PPB13N00
A4VSO180LR2N/22R-PPB13N00 
A4VSO250DFR/30R-PPB13N00 
A4VSO250DR/30R-PPB13N00 
A4VSO250DRG/30R-PPB13N00 
A4VSO250LR2/30R-PPB13N00 
A4VSO250LR2G/30R-PPB13N00 
A4VSO250LR2N/30R-PPB13N00 
A4VSO180DFR/22R-PPB13N00 
A4VSO180DR/22R-PPB13N00 
A4VSO180DRG/22R-PPB13N00 
柱塞泵 A4VG90HWD1/32R-NZF001S 
柱塞泵 A4VTG90HW/32R-NLD10F001S 
軸向柱塞泵 A4VSO125DR/PPB13NOO 
變量軸向柱塞泵 A4VSO180DR/30R-PPB13N00 
變量軸向柱塞泵 A4VSO125DR/30R-PPB13N00 
柱塞泵 A4VS0125DR/10R-PPB13N00 
柱塞泵 A4VS071DR/10R-PPB13N00 
柱塞泵 A4VS0125DR/22R 
變量泵 A4VSO250EO2/30R-VPB13N00-SO2
柱塞泵 A4VG125EP2MT1/32-NZF02F021SH-S 
柱塞泵 A4VSO250EO2/30R-VPB13N00-SO2
變量軸向柱塞泵 A4VSO180DR/30R-PPB13N00 
變量軸向柱塞泵 A4VSO125DR/30R-PPB13N00 
油泵 A4VSO180DFR/30R-PPB13N00 
柱塞泵 A4VS0180DR/30R-PPB13N00
軸向柱塞泵主泵 A4VS0125DRG/30R-PPB13N00 
油泵 A4VS071DR/30R-PPB13N00 
德國力士樂A4VG-125泵的配件 主軸 080121-001# 
軸向柱塞泵 E-A4VSO250EO2/30R-VPB25N00-SO3
軸向柱塞泵 E-A4VSO250EO2/30R-VPB25N00-SO3 
柱塞泵 A4VSO180DR/30R-FPB13N00
恒壓變量泵 E-A4VS0125DR/22R-VPB13N00 
柱塞泵 A4VSO180DR/30R-FPB13N00 
柱塞泵 A4VS0180LR2G/30R-PPB13NOO
柱塞泵 A4VSO250LR2D/30R-PPB13NOO 
柱塞泵 A4VSO250DR/30R-PPB13NOO
泵 A4VG56EZ2DM1/32-NSC02F003F