A10VO45 Hydraulic Pump for Rexroth A10VO100 A10VO28 A10VO140 Piston Pump for Wheel Loader Excavator

A10VO Series Variable Displacement Axial Piston Hydraulic Pump — Aftermarket Replacement for Bosch Rexroth A10VO Series

The H-STAR A10VO series is an aftermarket replacement variable displacement axial piston hydraulic pump with swash-plate design, fully compatible with Bosch Rexroth A10VO series (sizes 18-140 cc/rev, Series 31). This pump is designed for hydrostatic drives in open circuits, specifically engineered for mobile and construction machinery applications.

The swash-plate design with 9 pistons provides high power density, compact dimensions, and low noise operation. Flow is proportional to drive speed and displacement, and can be steplessly adjusted from maximum to zero by tilting the swash plate. The A10VO is the mobile version of the A10VSO series — featuring SAE mounting flanges, SAE flanged ports, and spline shafts that can handle radial loads, making it ideal for excavators, loaders, cranes, and other mobile equipment.

Key features: • SAE mounting flange and SAE flanged ports (mobile standard) • Drive shaft can withstand axial AND radial loads • Through drive for mounting additional pumps up to same nominal size (100% through drive) • 2 case drain ports • Excellent suction characteristics • Low noise level • Long service life • High power-to-weight ratio • Wide range of control options • Short response times

Multiple models and configurations available. Send Model / Code / Nameplate

The A10VO series offers a wide variety of control devices to suit different application requirements:

Most common controls for mobile machinery:
DFLR / DFLR1: Constant power + flow + pressure — #1 choice for excavator main pumps
DFR / DFR1: Pressure + flow — common for auxiliary pumps, load-sensing systems
DR: Pressure control — common for hydraulic power units, simple systems

Note on DFR vs DFR1 and DFLR vs DFLR1:
Without "1" (DFR/DFLR): X-channel orifice is OPEN — pilot flow circulates through port X
With "1" (DFR1/DFLR1): X-channel orifice is CLOSED — no pilot flow loss through port X
DFR1/DFLR1 is preferred when port X is not used for remote control — prevents unnecessary flow loss and heat generation
* If you are replacing a DFR1 pump, you must use DFR1 (not DFR). The orifice configuration affects system behavior.

Please specify your required control type when ordering. Different control types are NOT interchangeable.

The A10VO series is widely used across multiple industries, with a primary focus on mobile and construction machinery:

Construction Machinery (Primary Market — ~60% of A10VO applications): • Small excavators (6-8 ton class) — main pump with DFLR constant power control
Typical models: XCMG XE80, SANY SY75, CAT 307, Komatsu PC78
A10VO45DFLR is a common main pump specification • Skid steer loaders — shared travel and working system pump • Small road rollers — hydraulic system main pump • Aerial work platforms (boom lifts, scissor lifts) — hydraulic power pump • Truck cranes and small cranes — lifting pressure holding, overload protection

Injection Molding & Plastic Machinery: • Medium-small injection molding machines (DFLR constant power saves energy)
Low pressure / high flow for quick mold closing
High pressure / low flow for pressure holding and mold locking • Blow molding machines, extruders

Machine Tools & Industrial Equipment: • CNC lathes and machining centers — clamping, feeding, indexing • Hydraulic power units (HPUs) — DR constant pressure supply • Test benches and hydraulic fixtures
Material Handling: • Forklifts and telehandlers • Compact loader hydraulic systems
Agricultural Machinery: • Tractor hydraulic systems • Self-propelled sprayers
Marine & Offshore: • Deck equipment hydraulic systems • Ship auxiliary hydraulic pumps
Mining & Heavy Industry: • Mining machinery hydraulic systems • Concrete pump truck auxiliary systems

Equipment Types: Mini/mid excavators, skid steer loaders, aerial work platforms, truck cranes, injection molding machines, CNC machine tools, forklifts, marine deck equipment, hydraulic power units.

Typical model codes by application: • Mini excavator main pump: A10VO45DFLR1/31R-PSC62N00 (DFLR constant power, SAE flange) • Auxiliary pump: A10VO28DFR1/31R-PPA12N00 (DFR pressure/flow, ISO flange) • Injection molding machine: A10VO100DFLR/31R-PSC62N00 (large displacement) • Hydraulic power unit: A10VO71DR/31R-PPA12N00 (DR pressure control) • Skid steer loader: A10VO45DFLR1/31R-PSC62K01 (with through drive for tandem pump)

Each H-STAR A10VO45 pump undergoes the following quality processes:
• Dimensional Inspection: CMM (Coordinate Measuring Machine) verification of cylinder bore precision, piston diameter, valve plate flatness, and swash-plate angle per Rexroth tolerances
• Surface Hardness Testing: Piston and slipper surface hardness verified (HRC 58-62 for piston, HRC 55-60 for slipper plate)
• Bearing Inspection: Heavy-duty bearing clearance and preload verified per specification — A10VO bearings are rated for radial loads, critical for mobile applications with belt/gear drives
• Assembly Clearance Check: Piston-to-bore clearance (0.015-0.025 mm) and slipper-to-swashplate contact verified
• Pressure Testing: Post-assembly pressure test at nominal pressure (280 bar) for 15 minutes to verify sealing, internal leakage, and performance
• Cleanliness Control: All components cleaned and packaged to ISO 4406 cleanliness standard (20/18/15)
• Run-in Test: Low-speed run-in at 500 rpm for 10 minutes to verify smooth operation and noise level

Factory Capability: CNC machining center, hydraulic test bench (up to 500 bar), Mitutoyo CMM precision measurement, surface roughness tester.

QC – Quality Assurance

How we ensure you receive high‑quality products:

1.World‑class manufacturing equipment – We use advanced international machinery for production, testing, and inspection at every stage, ensuring consistent precision and reliability.

2.Two‑step quality control – We conduct a thorough finished‑product inspection followed by a pre‑shipment check, adding an extra layer of protection to guarantee that only defect‑free items reach you.

3.Certified quality management – Our manufacturing processes for hydraulic components and construction machinery parts are backed by ISO 9001:2015 certification. This internationally recognized standard ensures that our quality management system meets rigorous requirements for consistency, traceability, and continuous improvement. We also comply with ISO 14001environmental management) and ISO 45001 (occupational health and safety) standards where applicable. Additionally, our quality control system is supported by a computer‑integrated Quality Management Information System (IQS) to enhance inspection accuracy and process traceability

Why Choose H-STAR?

Guangzhou Huasheng Construction Machinery Co., Ltd. specializes in aftermarket hydraulic replacement parts compatible with Danfoss, Parker, Rexroth, Vickers, Hawe, and Kawasaki series. With 3+ years on Alibaba.com, 95.7% on-time delivery rate, and response time within 2 hours, we serve customers across South America, Oceania, and the Middle East.

Our Capabilities: • CNC machining center for precision component manufacturing • Hydraulic test bench (up to 500 bar) for performance verification • CMM (Coordinate Measuring Machine) for dimensional inspection • ISO 4406 cleanliness control for hydraulic component packaging • Complete A10VO series supply: sizes 18-140 cc/rev, all control types, standard + high-speed

Customer Reviews: from 33 verified buyers — including repeat customers from Brazil, Venezuela, and Australia.

Send your pump nameplate photo or model code to get an accurate quote within 2 hours.

RFQ

Q: What is the warranty?

A: 12 months from delivery date against manufacturing defects under normal operating conditions.

Q: What's the package?

A. We usually packed by standard exported box or carton. And we can pack as your requirement.

Q: When weship out?

A: In 1-2 days if in stock.

Q: Which shipping term you can supply?

A:By sea, air or by express ( DHL, FedEx, TNT,UPS,EMS ...)

Q: How long does it take to my address?

A:The Normal delivery time is 3-7 days, depending on which country you are in.

Q:How can I trace my order?

A:We will send you the tracking number after we send the goods.

Q: What's brand you can offer?
A:OEM,original, aftermarket

Q. If I only know the model, but can not offer parts No., what should I do ?

A. If possible, you can send us pictures of old products, nameplate or the size for reference.