力士樂油泵是液壓系統的動力機構，它將原動機（電動機、內燃機等）的機械能轉變為液體的壓力能。
力士樂油泵可以分為容積式和非容積室（蝸輪式）兩種。非容積式有離心泵、軸流泵等，利用高速旋轉的葉輪使進口產生真空吸入液體，并在出口連續輸出壓力液體。這種泵進口與出口相通，效率隨液體粘度增加而降低，并且輸出液體量隨出口壓力升高而顯著減少。
容積式泵是通過一個封閉的空間容積的變化來實現吸油和壓油的。當這個封閉容積由小變大時進行吸油，由大變小時進行壓油。典型的為力士樂柱塞泵，柱塞從缸孔中拉出時吸油，壓進時壓油。這種泵進口與出口是被隔開的，效率取決于隔開吸壓油腔的各對運動零件間的結構工藝間隙及油液的粘度等。粘度越高效率越高，輸油量幾乎保持不變。

力士樂油泵是一種既輕便又緊湊的泵，提出了一種具有一個由含鋁材料制成的外殼的油泵和設置在該外殼中的可運動的模制件，其中，該可運動的模制件至少部分地由一種可燒結的、至少包含一種奧氏體的鐵基合金的材料制成，并且其中由一種可燒結材料制成的該模制件具有一個至少為該外殼的熱膨脹系數60%的熱膨脹系數。

1柱塞泵一般用于機床、冶金、鍛壓、礦山及起重機械的液壓傳動系統中，特別廣泛地應用于大功率的液壓傳動系統中。
2葉片泵一般主要用在礦業，煤炭，冶金，化工，環保等行業。一般意義的砂泵更多是指用在環保，挖沙，河道清淤等行業較多。這個系列砂泵主要以ES或者G系列的較多。除此之外，叫做砂泵的類型還有很多，石油領域的SB砂泵，礦業上的PS砂泵系列等等。本文介紹的砂泵主要以通常意義上的ES或G系列的挖沙，環保行業的用的砂泵。
3齒輪泵適用于輸送石油、化工、涂料、染料、食品、油脂、醫藥等行業中的牛頓液體或非牛頓液體，輸送液體的種類可由輕質、揮發性液體，直至重質、粘稠，甚至半固態液體。

力士樂油泵的部分系列：

A10VSO18DFR1/32R-VPB12N00
A10VG18HD1/10L-NSC16N003E
A10VSO18DFR1/31R-PPA12N00
A10V028DR/31R-PSC12N00
A10VS028DR/31R-PPA12N00
A10VSO28DR/32R-VPB121N00
A10VSO28DFR/31R-PSA12N00
A10VSO28DFR1/31R-PPA12N00
A10VSO28DFR1/32R-VPB12N00
A10VSO28DRF1/31R-PSA12N00
E-A10VSO28DFR1/31R-PPA12N00
A10VSO28DR/31R-PSC12N00
A10V028DR/31R-PSC62K01
A10V028DFR1/31R-PSC62N00
A10VSO45DFR1/31R-PPA12N00
A10VSO45DFR1/32R-VPB12N00
A10VSO45DR/31R-PPA12N00
A10VSO45DR/31R-PPA12K25
A10VSO45DFR1/31R-PPA12N00
A10VSO58DFR1/31R-PPA12N00
A10VS045DFR1/31RPPA12NOO
E-A10VSO45DFR1/31R-PPA12N00
A10VS045DFR/31R-PPA12NOO-SO32
A10VS045DR/31R-PPA12N00
A10VS045DR/52R-PC12N00
A10V045DFR1/31R-PSC62K02
A10VSO45DFR1/31R-PPA12N00
A10VS045DR/31RPPB12-NDD
A10VO45DFR1/31R-PSC62K02
A10VSO71DFR1/32R-VPB22U99
A10VSO71DFR1/31R-PPA12N00
A10VSO71DFR1/32R-VPB12N00
A10VSO71DFR1/31R-PPA12KB5
A10VSO71DFR/31R-PSC62K07
A10VO71DFRI/34 PSC6402-S0225
A10VSO71FR1/31R-PPA12N00
A10VSO71DFR1/31R-PPB12NOO
E-A10VSO71DFR1/31R-PPA12N00
A10VO71DFR1/31RPSC62K07
A10VSO71DFR/31R-PPA12KB3
A10VS071DR/31R-PPA12N00
A10VS071DFR/31R-PPA12N00
A10VS071DFR1/31R-PPA12N00
A10VSO71DFR1/31R-PPA12N00
A10VSO71DFR1/32R-VPB22U99
EA10VSO71DR/31R-PPA12N00
A10VS0100DR/31R-PPA12N00
A10VS0100DR/32R-VPB22U99
A10VSO100DFR1/32R-VPB12N00
A10VSO100DFR1/31R-PPA12K
A10VSO100DFR1/31R-PPA12KB3
EA10VSO100PFR1/31R-PPA12N00
A10VSO100DFR/31RPSB12K24
A10VSO100DR/31R-VPA12N00
A10VSO100DR/31R-PPA12N00
A10VS0100DFR1/31R-PPA12N00
A10VS0100DFR1/32R-VPB12N00
A10V0100DR/31R-PSC11N00
A10VS0100DR/31R-PTA12N00
A10VSO100DR/31R-PPA12N00
A10VSO100DFR1/32R-VPB12N00
A10VSO140DFR1/31R-PPB12N00
A10VSO140DFLR1/31R-PPB12KO1
A10VSO-140DR/31R-PPB12N00
A10VSO140DFR1S/31RPPB12N0
A10VSO140DFR1/31R-PPB12N00
A10VS0140DFLR/31R-PPB12N00
A10VSO140DR/31R-PPB12N00
A10VS0140DRS/32R-VPB12N00
E-A10VSO140D/31R-PPB12N00
A10VSO140DFR1/31R-PPB12N00
A10VS0140DR/32R-VPB12N00
AE-A10VSO140D/31R-PPB12N00
A10VSO140DR/31R-PPB12N00
A10VSO140DRS/32R-VPB12N00
A10VSO140DFR1/31R-PPB12N00
A10VSO140DFR1/32R-VPB12N00
A10VSO140DRS/32R-VPB12N00

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