Rexroth A7VKO series hydraulic pump A7VKO012 A7VKO028 A7VKO055 A7VKO107 axial piston pumps

Rexroth A7VKO series hydraulic pump A7VKO012 A7VKO028 A7VKO055 A7VKO107 axial piston pumps for Volvo EC950E crawler excavator

Rexroth A7VKO axial hydraulic variable pump — technical brief for OEM and system designers

The Rexroth A7VKO hydraulic pump (English keyword: Rexroth A7VKO axial variable pump) family delivers compact, high-efficiency axial-piston performance for mobile and industrial hydraulic systems. Common frame sizes include A7VKO012, A7VKO028, A7VKO055 and A7VKO107, each built for continuous operation in heavy-duty environments. BAOLILAI produces OEM-compatible units with factory testing; full PDF datasheets and CAD are available at www.baolilai-pump.com and by request at www.baolilai-pump.com/contact_us/. Each pump is supplied with a one-year warranty.

Copyable technical parameter table

Model	Displacement (cc/rev)	Speed range (rpm)	Rated pressure (bar)	Warranty
A7VKO012	12	1500–1800	400–450	1 year
A7VKO028	28	1500–1800	400–450	1 year
A7VKO055	55	1500–1800	400–450	1 year
A7VKO107	107	1500–1800	400–450	1 year

Design highlights
• Bent-axis axial piston architecture for high volumetric efficiency and low internal leakage.
• Hardened rotating group, precision pistons and optimized swashplate reduce wear and heat generation.
• Reinforced housings, heavy-duty bearings and optional explosion-resistant variants for hazardous zones.
• Surface treatments and special seals available for marine, mining or corrosive environments.
• Compact footprint and multiple mounting/shaft options simplify retrofit into planetary gearboxes and OEM drives.

Application scenarios and OEM examples
The A7VKO series is specified where compact, efficient pumping is required for continuous service:

• Agricultural machinery: Primary and implement pumps on large tractors and combine harvesters (example OEM sites: www.deere.com, www.agrifac.com). Models such as the A7VKO012 and A7VKO028 are well suited to implement circuits and steering control.
• Construction equipment: Main pump and auxiliary pump duties on excavators and pavers—suitable for medium-class excavators and compact wheel loaders (example OEM sites: www.cat.com, www.jcb.com). The A7VKO055 is a common choice where higher flow is needed.
• Mining and quarrying: High-durability pumps for shuttle conveyors, drilling rigs and support equipment, where A7VKO107 delivers sustained flow at high pressure (example OEM sites: www.komatsu.com, www.liebherr.com).
• Engineering & industrial systems: Hydraulic presses, marine winches and material-handling cranes benefit from the A7VKO’s stable pressure control and explosion-proof options (example OEM sites: www.konecranes.com, www.electrohydraulicspecialist.com).

System integration guidance

1. Calculate target rpm: rpm ≈ (system flow L/min × 1000) ÷ displacement (cc/rev), then allow margin for volumetric efficiency.
2. Maintain hydraulic fluid cleanliness per OEM ISO targets; fine filtration extends service life of pistons and swashplate.
3. Install oil coolers for sustained high-power cycles; monitor oil temperature and viscosity.
4. Use accumulators or pilot-operated dampers to protect against pressure spikes and transient loads.
5. Confirm shaft/mounting selection at order to avoid retrofit delays.

FAQ

Q1: Which A7VKO model is best for a medium excavator?
A1: For medium excavators requiring a balance of flow and pressure, A7VKO055 is often chosen; final selection should match required actuator speeds and system flow.

Q2: Can A7VKO pumps be used in closed-loop hydrostatic drives?
A2: Yes—A7VKO units integrate into closed-loop systems when paired with appropriate charge pumps, relief valves and control electronics.

Q3: Are explosion-proof options available?
A3: Yes. BAOLILAI offers explosion-resistant housings and special seals for hazardous environments; specify at purchase.

Q4: Where to download datasheets and request support?
A4: Visit www.baolilai-pump.com or request PDFs at www.baolilai-pump.com/contact_us/.

Conclusion
The Rexroth A7VKO axial variable piston pump series (A7VKO012, A7VKO028, A7VKO055, A7VKO107) provides reliable, high-pressure pumping for a wide range of industrial and mobile applications. With robust construction, environmental options and BAOLILAI’s one-year warranty, these pumps meet OEM requirements for durability and performance.

Order Number	Internal Number
R902186115	A7VKO028MA/10MRSL4P550-0
R902047310	A7VKO28MA/63R-XPB01
R902063864	A7VKO28MA/63R-XPB01
R902182480	A7VKO012MA/10MLSK4P350-027412.0001
R902186228	A7VKO012MA/10MRSK4P35A-027412.0001
R902186230	A7VKO028MA/10MRSL4P55A-027416.0026
R902186232	A7VKO028MA/10MLSLGP55A250-01
R902194075	A7VKO012MA/10MRSK4P350-0 27412.0001
R902194077	A7VKO028MA/10MRSL4P550-0 27416.0026
R902196685	A7VKO012MA/10MRSK4P350-027412.0001
R902196688	A7VKO028MA/10MRSL4P550-0 27416.0026
R902200079	A7VKO055MA/10MRSMSP650000-0
R902202301	A7VKO055MG/10MRSMSP65000-0’542627’*EW
R902203773	A7VKO107MA/10MRSPSP950000-0
R902232534	A7VKO055MA/10MRSMSP65A250-0
R902233423	A7VKO028MA/10MRSLGP55A200-0
R902237026	A7VKO107MA10MRSPSP95A150-0 274.25.00.02
R902242619	A7VKO012MA/10MRSKGP350000-S 27412.0002
R902247373	A7VKO012MA/10MRSKGP35A250-0
R902247453	A7VKO028MA/10MLSLGP550000-0
R902250891	A7VKO005MA/10MRSKGP350000-0C *EW*
R902253592	A7VKO012MA/10MRSKGP35A250-0
R902253695	A7VKO107MA/10MRSPSP95A130-0
R902242642	A7VKO028MA/10MRSLGP55000-S 27416.0027
R902255778	A7VKO028MA/10MRSLGP550000-0
R902255853	A7VKO055MA/10MRSMSP65A200-0
R902269966	A7VKO028MA/10MRSLGP55A250-0
R902255777	A7VKO012MA/10MRSKGP350000-0
R927231119	A7VKO012MA/10MRSK4P350-0
R902182161	A7VKO012MA/10MRSKGP350000-0
R902206538	A7VKO107MA/10MRSPSP950000-0
R902206543	A7VKO055MA/10MRSMSP650000-0
R902270055	A7VKO028MA/10MRSLGP550000-S 27416.0026