7407928 512255714 10409372 10226276 10409372 5801739 10112679 512205014 Liebherr Crane Hydraulic Pumps

The Hydraulic Heart for Precision & Power: Rexroth A10VO Series Pumps in Liebherr Cranes

The flawless operation of a Liebherr crane—whether positioning a delicate wind turbine component or executing rapid cycle lifts in a busy port—relies on a hydraulic system that masterfully balances immense power with micro-precision. This system’s intelligence and responsiveness are dictated by its core component: the main hydraulic piston pump. For Liebherr’s demanding engineering machinery, the Rexroth A10VO series variable displacement axial piston pumps, including the AA10VO, AHA10VO, ALA10VO, and APA10VO variants, deliver the exacting performance required. As a professional supplier, www.baolilai-pump.com provides these critical components. For detailed technical data, download the PDF via www.baolilai-pump.com/contact_us/.

Technical data, standard unit

Size		NG		18	28	45	71	88	100	140
Displacement, geometric, per revolution		Vg max	cm3	18	28	45	71	88	100	140
Rotational speed maximum	at Vg max	nnom	rpm	3300	3000	2600	2200	2100	2000	1800
	at Vg<Vg max	nmax	rpm	3900	3600	3100	2600	2500	2400	2100
Flow	at nnom and Vg max	qv max	l/min	59	84	117	156	185	200	292
	at n=1500 rpm and Vg max	qvE max	l/min	27	42	68	107	132	150	210
Power at Δp=280 bar	at nnom, Vg max	Pmax	kW	28	39	55	73	86	93	118
	at n=1500 rpm and Vg max	Pnom	kW	12.6	20	32	50	62	70	98
Torque	at Δp=280 bar	Tmax	Nm	80	125	200	316	392	445	623
	at Δp=100 bar	T	Nm	30	45	72	113	140	159	223
Rotary stiffness of drive shaft	S	c	Nm/rad	11087	22317	37505	71884	71884	121142	169437
	R	c	Nm/rad	14850	26360	41025	76545	76545	–	–
	P	c	Nm/rad	13158	25656	41232	80627	80627	132335	188406
Moment of inertia for rotary group		JTW	kgm2	0.00093	0.0017	0.0033	0.0083	0.0083	0.0167	0.0242
Case volume		V	l	0.4	0.7	1.0	1.6	1.6	2.2	3.0
Weight without through drive (approx.)		m	kg	12.9	18	23.5	35.2	35.2	49.5	65.4
Weight with through drive (approx.)		m	kg	14	19.3	25.1	38	38	55.4	74.4

Engineered for Unyielding Reliability
Liebherr equipment operates in the world’s most challenging environments—from dusty construction sites to high-vibration mining pits. The A10VO series is built to endure, backed by a comprehensive one-year warranty. Its robust swashplate design and advanced materials offer exceptional resistance to pressure shocks and contamination. Enhanced sealing and hardened components, as found in models like 7407928, ensure consistent performance where lesser pumps would fail, directly protecting the crane’s complex hydraulic circuitry.

Technical Advantages for Demanding Crane Applications
The A10VO series excels in open-circuit systems common in mobile machinery. Its key advantages for Liebherr cranes include:

Load-Sensing Efficiency: It provides flow precisely matching system demand, reducing fuel consumption and heat generation—critical for all-day crane operation.

High Power Density: A compact, lightweight design delivers high pressure (up to 350 bar) without sacrificing valuable machine space.

Superior Control: Features like the DF(R) control enable precise swing, hoist, and luffing motions, essential for sensitive assembly work.

Powering the Full Spectrum of Liebherr Machinery
The versatility of the AP A10VO platform makes it a key component across Liebherr’s diverse equipment portfolio:

Mobile & Crawler Cranes: These pumps deliver the smooth, controllable power for the main hoist, swing, and boom functions. Models like those referenced under part 512255714 are integral to the responsive “feeling” operators rely on.

Earthmoving & Mining: In Liebherr hydraulic excavators (R 9100 to R 9800 series) and massive mining trucks, the pump’s durability under extreme load is paramount. It powers digging and traction systems where reliability dictates productivity, with components like 10409372 and 10226276 specified for these harsh conditions.

Material Handling & Specialized Vehicles: From Liebherr （https://www.liebherr.com/）material handlers to airport tow tractors and fire engines, consistent hydraulic power is non-negotiable. The pump’s reliability supports these critical applications, with parts such as 5801739 and 10112679 commonly serviced.

Frequently Asked Questions (FAQ)
Q1: Why is a variable displacement pump like the A10VO superior for crane applications?
A1: Unlike fixed pumps, it automatically adjusts its output to meet exact system demands. This load-sensing capability provides optimal fuel efficiency, precise control for delicate lifts, and significantly reduces system heat.

Q2: What makes the ALA10VO or APA10VO models suitable for 24/7 mining or port operation?
A2: The “AL” and “AP” designations often indicate heavy-duty versions with enhanced bearings, hardened components, and superior contamination resistance. This ensures extended service life and reliability in abrasive, high-cycling environments like mining or busy ports.

Q3: Can these pumps integrate with Liebherr’s advanced electronic control systems?
A3: Yes. Many A10VO variants offer electro-hydraulic controls (e.g., proportional valves) that interface seamlessly with modern crane control systems. This allows for precise swing regulation and coordinated multi-function movements, as seen in Liebherr’s sophisticated crane hydraulics.

Q4: Where can I find the correct replacement pump for my Liebherr crane?
A4: We provide precise cross-referencing for Liebherr OEM part numbers. For technical support and to confirm compatibility for your specific part, contact our team via www.baolilai-pump.com/contact_us/.

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Product Model

Product Model No.	Application Equipment Brands	Application Equipment No.
A A10V O  SV A10VO	Liebher	5006402
A A10V O  AV A10VO	Liebher	5717355
A A10V O  AV A10VO	Liebher	512416414
A A10V O  AV A10VO	Liebher	5716846
A A10V O  SV A10VO	Liebher	7016532
A A10V O  AL A10VO	Liebher	5717177
A A10V O  AV A10VO	Liebher	7407928
A A10V O  AV A10VO	Liebher	512255714
A A10V O AE A10VO	Liebher	512255714
A A10V O  AV A10VO	Liebher	512238714
A11VO+HA10VO AV A11VO+A10V O	Liebher	11494033 L586-461
A2 A10V O  AE A10VO	Liebher	5990568
A2 A10V O  AE A10VO	Liebher	5008251
A2 A10V O  AE A10VO	Liebher	5009682
AH A10V O  AL A10VO	Liebher	5,716,828,599
AH A10V O  AL A10VO	Liebher	5801931
AH A10V O  AE A10VO	Liebher	5801932
AH A10V O AV A10VO	Liebher	10409372
AL A10V O  AV A10VO	Liebher	512244114
AL A10V O  AV A10VO	Liebher	512205014 crane
AL A10V O  AV A10VO	Liebher	10332701
AL A10V O  AV A10VO	Liebher	5009723
AL A10V O  AV A10VO	Liebher	10411205
AL A10V O  AV A10VO	Liebher	11081537
AL A10V O  AV A10VO	Liebher	5611980
AL A10V O  AV A10VO	Liebher	512128208/10021
AL A10V O  AV A10VO	Liebher	10226276
AL A10V O  AV A10VO	Liebher	10226013
AL A10V O  AV A10VO	Liebher	10100189
AL A10V O  AV A10VO	Liebher	10021531
AL A10V O  AV A10VO	Liebher	5.92E+18
AL A10V O  AV A10VO	Liebher	10226276
AL A10V O  AV A10VO	Liebher	11622893
AL A10V O  AV A10VO	Liebher	10409612
AL A10V O  AV A10VO	Liebher	592008714
AL A10V O  AV A10VO	Liebher	10455158
AL A10V O  AV A10VO	Liebher	512233514 crane
AL A10V O  AV A10VO	Liebher	512261714
AL A10V O  AV A10VO	Liebher	512137308
AL A10V O  AV A10VO	Liebher	10336715
AL A10V O  AV A10VO	Liebher	10467591
AL A10V O  AV A10VO	Liebher	10411204
AL A10V O  AV A10VO	Liebher	7407928
AL A10V O  AL A10VO	Liebher	592320714
AL A10V O  AV A10VO	Liebher	10226275
AL A10V O  AV A10VO	Liebher	10507566 crane
AL A10V O  AV A10VO	Liebher	512244014
AP A10V O  AV A10VO	Liebher	5716828
AP A10V O  AV A10VO	Liebher	10409372
AP A10V O SV A10VO	Liebher	5802157
AP A10V O  AV A10VO	Liebher	5801761
AP A10V O  AV A10VO	Liebher	10440677
AP A10V O  AV A10VO	Liebher	10440679
AP A10V O SV A10VO	Liebher	5802021
AP A10V O  AV A10VO	Liebher	100022804
AP A10V O  AV A10VO	Liebher	5801739
AP A10V O  AV A10VO	Liebher	10440680
AP A10V O  AV A10VO	Liebher	10471763
AP A10V O  AV A10VO	Liebher	10664186
LA10VO+LA10VSO AV A10VO+A10VS	Liebher	592131514
LA10VO+LA10VO AV A10VO+A10VO	Liebher	10112679

Specification