Name: China Rexroth Pump A10VSO Series Suppliers - Yanhui Hydraulic
Brand: Yanhui
SKU: 310328918

Guangdong Yanhui Hydraulic Co., Ltd. is one of the leading manufacturers and suppliers of Rexroth Pump A10VSO Series in China. We warmly welcome you to wholesale bulk Rexroth Pump A10VSO Series for sale here from our factory. If you have any enquiry about pricelist and quotation, please feel free to email us.

Product Overview

▔▔
The Rexroth A10VSO Series is a high-performance variable displacement axial piston pump designed for open-circuit industrial hydraulic systems. Built around a swashplate design, it provides precise volumetric flow control directly proportional to the drive speed and displacement setting. Positioned as a premier medium-pressure pump series within Bosch Rexroth's hydraulic portfolio, the A10VSO is engineered for applications requiring accurate pressure, flow, and power regulation, such as plastics machinery, machine tools, metal forming presses, and heavy-duty industrial automation.

Key Advantages

▔▔

Precision Control: Outstanding control response for pressure, flow, and power regulation, ensuring steady high-accuracy hydraulic delivery.

High Power Density: Compact structural footprint delivering robust power output under high operating pressures.

Low Operating Noise: Optimized swashplate dynamic balance and valve plate design significantly reduce noise generation.

Long Service Life: Hydrostatically balanced bearings and high-grade wear components minimize friction and thermal load.

Modular Versatility: Standardized multi-circuit configuration capabilities via standard through-drive options for auxiliary pumps.

Technical Specifications

▔▔

Technical Parameter	Unit	A10VSO 18	A10VSO 28	A10VSO 45	A10VSO 71	A10VSO 100	A10VSO 140
Nominal Displacement	cm3/rev	18	28	45	71	100	140
Maximum Continuous Pressure (p nominal)	bar	280	280	280	280	280	280
Maximum Peak Pressure (p max)	bar	350	350	350	350	350	350
Maximum Drive Speed (n max at 1 bar abs)	rpm	3300	3000	2600	2200	2000	1800
Nominal Flow (Q nom at n max)	L/min	59.4	84.0	117.0	156.2	200.0	252.0
Viscosity Range (Continuous Operation)	mm2/s	16 to 36	16 to 36	16 to 36	16 to 36	16 to 36	16 to 36
Operating Temperature Range	degree C	-25 to +90	-25 to +90	-25 to +90	-25 to +90	-25 to +90	-25 to +90
Response Time (Zero to Max Swivel)	ms	50	60	70	90	110	130
Control Hysteresis	%	less than 1.0	less than 1.0	less than 1.0	less than 1.0	less than 1.0	less than 1.0

Configuration Options

▔▔

Structural Layout: Swashplate design axial piston pump with open-circuit flow architecture. Supports single or multi-pump through-drive combinations.
Control Mechanisms:
DR / DRG: Pressure control (remote control capable).
DFR / DFR1: Load sensing control for pressure and flow.
DFLR: Constant pressure, flow, and power limiting control.
FE / ED / ER: Electro-proportional pressure and displacement control.
Feedback & Sensing: Mechanical feedback stroke control, electrical position sensor integration, and pressure transducer options for closed-loop stability.
Flange & Mounting: SAE 2-bolt and 4-bolt standard mounting configurations according to ISO standard specifications.
Port Connections: SAE high-pressure flange ports (ANSI B93.6M) and ISO metric threaded port options.
Drive Shaft Options: Parallel keyed shaft or splined shaft per SAE ANSI standards.
Electrical Interface: Deutsch, Hirshmann, or AMP Junior-Timer connectors for proportional valve solenoids.

Key Materials and Components

▔▔

Cylinder Block: High-density alloyed ductile iron engineered for structural stability under high internal pressure cycles.
Piston Assembly: Case-hardened forged steel pistons featuring brass slipper shoes with hydrostatic balancing interface to reduce friction.
Valve Plate (Distributor Plate): Bimetallic hardened steel with anti-wear surface treatment to withstand high-velocity fluid shear.
Swashplate & Cradle: Hardened alloy steel mounted on composite polymer journal bearings to prevent galling and ensure fast response.
Seals & O-Rings: High-performance Viton (FKM) elastomeric seals ensuring fluid compatibility with mineral oils and synthetic fluids at elevated temperatures.

Packaging and Transport Protection

▔▔

Moisture & Corrosion Control: Internal surfaces flushed with anti-corrosion oil; ports plugged with dust covers; sealed inside heavy-duty vapor corrosion inhibitor (VCI) polyethylene bags with silica gel desiccant packs.
Vibration & Impact Protection: Custom-molded high-density polyethylene foam inserts encasing the entire pump profile within double-wall corrugated outer cartons.
Bulk & Heavy Logistics Packaging: High-capacity units (A10VSO 71 to 140) mounted and bolted to solid heat-treated wooden pallets/crates conforming to ISPM-15 international export standards, reinforced with steel banding straps.

Applications

▔▔

Injection Molding Machines: Used for proportional clamping pressure control and accurate mold movement velocity adjustment.
Metal Forming Hydraulic Presses: Implemented for fast-approach down-stroking, precise pressure hold cycles, and smooth tonnage control.
Machine Tool CNC Systems: Delivers adaptive variable flow to hydraulic clamping fixtures, tool changers, and spindle drives.
Baling & Compacting Machinery: Provides constant power limiting (DFLR control) to optimize engine drive output during high-load compression cycles.
Civil & Construction Equipment: Manages auxiliary hydraulic line pressures for winches, steering mechanisms, and stabilizing outriggers.

Related Models

▔▔

Model Code	Control Type	Nominal Size	Shaft Type	Through-Drive Option
A10VSO 18 DFR1 / 31R-PPA12N00	Load Sensing (DFR1)	18 cm3/rev	Keyed Shaft	Without Through-Drive
A10VSO 28 DR / 31R-PPA12N00	Pressure Control (DR)	28 cm3/rev	Parallel Keyed	Without Through-Drive
A10VSO 45 DFR1 / 31R-PPA12N00	Load Sensing (DFR1)	45 cm3/rev	Splined SAE B	Without Through-Drive
A10VSO 71 DFLR / 31R-PPA12N00	Pressure & Power Control	71 cm3/rev	Splined SAE C	Without Through-Drive
A10VSO 100 DRG / 31R-PPA12K01	Remote Pressure Control	100 cm3/rev	Keyed Shaft	SAE A Through-Drive
A10VSO 140 DFR / 31R-PPB12N00	Load Sensing (DFR)	140 cm3/rev	Splined SAE C-3	Without Through-Drive

FAQ

▔▔

1. How do I verify the correct model code for replacement?

Locate the metal nameplate on the side of the pump body. Provide the complete code (e.g., A10VSO45DFR1/31R-PPA12N00) and the 10-digit material number starting with 0518... or R9... to ensure exact technical match.

2. What cleanliness level is required for hydraulic oil?

To guarantee long service life, hydraulic oil must be filtered to maintain ISO 4406 cleanliness level 19/17/14 or cleaner. A nominal filtration rating of 10 microns is highly recommended.

3. What hydraulic fluid types are compatible with the A10VSO pump?

Standard units are fully compatible with mineral-oil-based hydraulic fluids (HLP/HM). For synthetic or fire-resistant fluids (such as HETG, HEPG, HFC), please specify during order placement for correct seal selection.

Contact Us

▔▔
Get in touch with us and we will get in touch with you quickly to give you more personalized information.

warehouse packing customers comments

Product Overview

▔▔

The Bosch Rexroth A10VSO Series is a world-renowned, high-performance variable displacement axial piston pump designed using a swashplate principle for hydrostatic drives in open-circuit industrial and mobile hydraulic systems. Celebrated for its modular engineering, robust reliability, and exceptionally high power-to-weight ratio, the A10VSO series serves as the industry standard for precision fluid power control.

Key Advantages

▔▔

High Power Density: Compact structural footprint combined with high working pressure capability enables maximum output power in constrained installation spaces.

Low Noise Levels: Optimized valve plate geometry and acoustic dampening swashplate design significantly reduce operational airborne noise.

Superior Efficiency: Extremely high volumetric and mechanical-hydraulic efficiency minimizes power loss and fluid heating.

Versatile Control Options: Wide array of pressure, flow, and power controls (DR, DFR, DFLR, DRG, etc.) allows seamless integration into automated control loops.

Through-Drive Capability: Designed to support auxiliary pump mounting (through-drive) for multi-circuit hydraulic systems without requiring additional engine PTO drives.

Long Operational Life: Premium tapered roller bearings, precision-engineered pistons, and advanced tribological coatings ensure extended service intervals under continuous heavy-duty cycles.

Technical Specifications

▔▔

Parameter	A10VSO 18	A10VSO 28	A10VSO 45	A10VSO 71	A10VSO 100	A10VSO 140
Displacement	18	28	45	71	100	140
Nominal Pressure	280 bar	280 bar	280 bar	280 bar	280 bar	280 bar
Maximum Pressure	350 bar	350 bar	350 bar	350 bar	350 bar	350 bar
Max. Speed at	3300	3000	2600	2200	2000	1800
Max. Flow Rate	59	84	117	156	200	252
Max. Power at	28	39	55	73	93	118
Approx. Weight (kg)	12	15	21	33	45	60
Viscosity Range	10 to 1000 (continuous: 16 to 36)	10 to 1000 (continuous: 16 to 36)	10 to 1000 (continuous: 16 to 36)	10 to 1000 (continuous: 16 to 36)	10 to 1000 (continuous: 16 to 36)	10 to 1000 (continuous: 16 to 36)
Fluid Temperature Range	-25°C to +90°C	-25°C to +90°C	-25°C to +90°C	-25°C to +90°C	-25°C to +90°C	-25°C to +90°C
Fluid Cleanliness Class	ISO 4406 20/18/15 (min)	ISO 4406 20/18/15 (min)	ISO 4406 20/18/15 (min)	ISO 4406 20/18/15 (min)	ISO 4406 20/18/15 (min)	ISO 4406 20/18/15 (min)

Applications

▔▔

Application Sector	Typical Machinery / Equipment	Primary Function / Key Advantage
Industrial Machinery	Hydraulic Presses, Injection Molding Machines, Die-Casting Equipment	Delivers precise pressure maintenance and dynamic flow scaling, reducing overall thermal waste and energy consumption.
Mobile & Heavy Equipment	Mobile Cranes, Concrete Pumps, Crawler Drilling Rigs	Compact power-to-weight ratio allows high-pressure fluid delivery with load-sensing (DFR) control for smooth multi-actuator operation.
Metal Processing & Steel Mills	Bending Machines, Shears, Rolling Mill Auxiliaries	High continuous pressure capability (280 bar) ensures continuous high-tonnage output under severe duty cycles.
Marine & Offshore	Deck Winches, Anchor Windlasses, Hatch Cover Actuators	Through-drive options support multi-stage hydrostatic drives while resisting harsh marine environmental stress.
Civil Engineering & Infrastructure	Shield Tunneling Machines, Pile Drivers, Hydraulic Power Stations	Robust swashplate assembly provides high resistance to operational shocks and pressure pulsations during heavy excavation.

Related Models

▔▔

Model Ordering Code	Frame Size	Control Type	Rotation	Shaft / Port Type	Target Application Profile
A10VSO 18 DR / 31R-PPA12N00	Size 18	DR (Pressure Cut-off)	Clockwise (R)	Parallel key shaft / SAE flange	Compact power units & machine tools
A10VSO 28 DFR1 / 31R-PPA12N00	Size 28	DFR1 (Load Sensing, no bleed)	Clockwise (R)	Parallel key shaft / SAE flange	Light mobile cranes & agricultural units
A10VSO 45 DFLR / 31R-PPA12N00	Size 45	DFLR (Power / Pressure / Flow)	Clockwise (R)	Splined shaft / SAE side ports	Plastic injection molding & presses
A10VSO 71 DRG / 31R-PPA12N00	Size 71	DRG (Remote Pressure Control)	Clockwise (R)	Splined shaft / Rear ports	Heavy industrial hydraulic power units (HPUs)
A10VSO 100 DR / 32R-VPB12N00	Size 100	DR (Pressure Cut-off)	Clockwise (R)	Splined shaft / Thru-drive ready	Metallurgy equipment & large shears
A10VSO 140 DFR / 31R-PPB12N00	Size 140	DFR (Load Sensing with bleed)	Clockwise (R)	Splined shaft / SAE flange	Marine winches & heavy earthmoving equipment

FAQ

▔▔

Q1: What is the primary difference between the Rexroth A10VSO variable piston pump and a fixed displacement pump?

Answer: A fixed displacement pump outputs a constant volume of fluid per shaft revolution, requiring excess fluid to be dumped over a relief valve at working pressure when demand drops (generating significant heat). In contrast, the variable displacement A10VSO pump automatically alters its swashplate tilt angle to adjust output volume according to system demand. This drastically reduces energy consumption, system thermal generation, and mechanical wear.

Q2: What are the differences between DFR and DFR1 control options on the A10VSO?

Answer: Both DFR and DFR1 are load-sensing control systems that regulate pump flow based on load demand via a differential pressure signal.

DFR: Features an internal bleeding orifice between the load signal line and the pump housing, allowing pressure relief in the signal line when the control valve is centered.

DFR1: Omits this internal bleed orifice. It is intended for systems where the load-sensing valve block already includes an integrated signal bleed line.