Name: China Rexroth A4VSO Hydraulic Piston Pumps Suppliers - Yanhui Hydraulic
Brand: Yanhui
SKU: 312297007

Guangdong Yanhui Hydraulic Co., Ltd. is one of the leading manufacturers and suppliers of rexroth a4vso hydraulic piston pumps in China. We warmly welcome you to wholesale bulk rexroth a4vso hydraulic piston pumps for sale here from our factory. If you have any enquiry about pricelist and quotation, please feel free to email us.

Product Overview

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The Bosch Rexroth A4VSO is a heavy-duty, high-performance axial piston variable displacement pump designed specifically for open-circuit industrial hydrostatic drives. Operating on a swashplate design, the pump adjusts flow output by varying the swashplate angle, allowing precise speed and power control across a broad spectrum of industrial applications.

Key Advantages

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High Operating Pressure: Continuous working pressure up to 350 bar, with a peak pressure rating of 400 bar.

Wide Range of Displacements: Available in sizes ranging from 40 cm³/rev up to 1000 cm³/rev.

Superior Suction Characteristics: Optimized fluid dynamics allow high self-priming speeds without requiring pre-charging pumps under normal conditions.

Low Noise Emissions: Advanced noise damping design and optimized valve plate geometry significantly reduce operating noise.

Long Service Life: Hydrostatically balanced swashplate bearing assembly and high-grade materials ensure extended durability under continuous high-load conditions.

Modular Control Options: Compatible with a full array of controllers, including pressure control (DR/DRG), power control (LR), hydraulic positioning (HD), electronic control (EO/HS), and load-sensing systems (DFR).

Through-Drive Capability: Supports auxiliary pump mounting (through-drive) for building multi-circuit hydraulic systems from a single drive shaft.

Visual Displacement Indicator: Integrated optical swivel angle indicator for easy real-time position monitoring.

Technical Specifications

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Parameter	Unit	A4VSO 40	A4VSO 71	A4VSO 125	A4VSO 180	A4VSO 250	A4VSO 355	A4VSO 500	A4VSO 750	A4VSO 1000
Nominal Displacement	cm³/rev	40	71	125	180	250	355	500	750	1000
Nominal Pressure (p_nom)	bar	350	350	350	350	350	350	350	350	350
Maximum Pressure (p_max)	bar	400	400	400	400	400	400	400	400	400
Max. Drive Speed (at open suction)	rpm	3000	2500	2200	1900	1800	1500	1300	1200	1000
Max. Flow Rate (at max rpm)	L/min	120	177	275	342	450	532	650	900	1000
Max. Drive Power Output	kW	70	103	160	200	262	310	379	525	583
Approximate Weight (Dry)	kg	38	51	82	102	185	240	335	540	720
Fluid Temperature Range	°C	-25 to +90	-25 to +90	-25 to +90	-25 to +90	-25 to +90	-25 to +90	-25 to +90	-25 to +90	-25 to +90
Viscosity Range	mm²/s	10 to 1000	10 to 1000	10 to 1000	10 to 1000	10 to 1000	10 to 1000	10 to 1000	10 to 1000	10 to 1000
Fluid Cleanliness Class	ISO 4406	20/18/15	20/18/15	20/18/15	20/18/15	20/18/15	20/18/15	20/18/15	20/18/15	20/18/15

Applications

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Industry Sector	Typical Equipment Application	Functional Advantages Provided by A4VSO
Metal Forming & Metallurgy	Hydraulic Forging Presses, Stamping Machines, Bending Presses	High continuous pressure capability (350 bar) delivers stable pressing force and rapid fast-traverse/slow-press speed switching.
Plastics & Rubber Processing	Heavy Injection Molding Machines, Rubber Extruders	Precise pressure/flow controls reduce cycle times, increase repeating accuracy, and optimize thermal efficiency.
Marine & Offshore	Winches, Anchor Windlasses, Deck Cranes, Steering Gear Units	High corrosion resistance, quiet operation, and modular controls built to survive harsh maritime environments.
Mining & Material Handling	Tunnel Boring Machines (TBM), Heavy Excavators, Conveyor Drives	Heavy-duty bearing layout tolerates severe shock loads and demanding extended operation cycles.
Civil Engineering & Testing	Hydraulic Test Rigs, Dam Gate Actuators, Heavy Shoring Systems	High power density and micro-positioning precision under electro-hydraulic controller configurations.

Related Models

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Model Series Code	Displacement (cm³/rev)	Control Type Description	Mounting Flange Type	Typical Shaft End	Through-Drive Option
A4VSO 40 DR / 30R-PPB13N00	40	Pressure Control (DR)	ISO 4-Bolt	Parallel Keyed	Without Through-Drive
A4VSO 71 DRG / 30R-PPB13N00	71	Remote Pressure Control (DRG)	ISO 4-Bolt	Splined Shaft	Without Through-Drive
A4VSO 125 DFR / 30R-VPB13N00	125	Load Sensing + Pressure Control	ISO 4-Bolt	Splined Shaft	With Flange Mount
A4VSO 180 LR2D / 30R-PPA13N00	180	Power Controller with Pressure Cutoff	ISO 4-Bolt	Parallel Keyed	Without Through-Drive
A4VSO 250 HD1 / 30R-VPB13N00	250	Hydraulic Control, Pilot Pressure Dependent	SAE / ISO 4-Bolt	Splined Shaft	Through-Drive Capable
A4VSO 355 HS3 / 30R-VPB13N00	355	Servo Control with Proportional Valve	ISO 4-Bolt	Splined Shaft	Through-Drive Capable
A4VSO 500 EO2 / 30R-VPA13N00	500	Electronic Proportional Control	ISO 4-Bolt	Parallel Keyed	Through-Drive Capable
A4VSO 750 DR / 30R-VPA13N00	750	Standard Pressure Control	Heavy-Duty Flange	Splined Shaft	Through-Drive Capable

FAQ

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Q1: What is the main difference between Rexroth A4VSO and Rexroth A10VSO pumps?

Answer: The primary differences lie in pressure ratings, duty cycle capability, and available displacement sizes:

A4VSO: Designed for heavy-duty industrial applications requiring high pressure (350 bar nominal, 400 bar peak) and larger displacements (up to 1000 cm³/rev). It uses a 9-piston swashplate design with heavy-duty bearings for continuous intensive work.
A10VSO: Designed for medium-pressure applications (typically 280 bar nominal, 350 bar peak) with displacement sizes usually up to 140 cm³/rev. It is lighter and intended for medium-duty machinery.

Q2: What hydraulic fluids can be used in the Rexroth A4VSO pump?

Answer: The A4VSO pump is compatible with mineral oil-based hydraulic fluids (HL and HLP types). It can also operate with environmentally acceptable hydraulic fluids (HEES, HETG, HEPG) and fire-resistant fluids (HFC, HFD), provided the seals, operating pressures, temperatures, and cleanliness standards are selected according to Bosch Rexroth fluid guidelines.