Piston Hydraulic Pump A4VSO
- Variable Displacement Axial Piston Pump
- Open Circuit Design
- High Pressure & High Efficiency
- Stable Operation Under Heavy Duty
- Energy Saving & Fast Response
- Low Noise, Long Service Life
- OEM & ODM Customization Available
- Custom Shaft / Control / Mounting Options
- Suitable for Industrial & Construction Machinery
Reliable A4VSO Variable Displacement Pump Built for Demanding Applications
When unplanned downtime costs your operation thousands per hour, you need a hydraulic pump that delivers consistent pressure, precise flow control, and long service life — without the premium price tag.
Olive Branch Hydraulics manufactures Rexroth A4VSO hydraulic pump compatible replacements engineered to OEM dimensional and performance standards. Backed by 10+ years of piston pump manufacturing experience and strict quality control protocols, our A4VSO piston pump delivers the reliability your systems demand at a cost structure that strengthens your bottom line.
Trusted by procurement teams across 40+ countries who need a dependable A4VSO piston pump supplier with fast lead times and flexible order quantities.
Key Features & Benefits
| Feature | Benefit |
|---|---|
| Axial piston, swashplate design | Smooth, low-pulsation output reduces system vibration and extends component life |
| Variable displacement control | Precise flow adjustment matches system demand, cutting energy waste by up to 30% |
| High pressure rating (up to 350 bar) | Handles heavy-duty industrial loads without performance degradation |
| Through-drive capability | Powers multiple pump combinations from a single prime mover, reducing footprint |
| Direct interchange dimensions | Drop-in replacement for Rexroth A4VSO series — no piping or mounting modifications required |
| Premium alloy valve plates & pistons | Extended MTBF (Mean Time Between Failures) under continuous-duty cycles |
| Low noise operation (≤76 dB(A)) | Meets workplace noise regulations without additional acoustic enclosures |
Technical Specifications
| Parameter | Specification |
|---|---|
| Model Series | A4VSO 40 / 71 / 125 / 180 / 250 / 355 / 500 / 750 |
| Pump Type | Axial piston, variable displacement, swashplate design |
| Displacement Range | 40 – 750 cm³/rev |
| Nominal Pressure | 280 bar (4,060 psi) |
| Peak Pressure | 350 bar (5,075 psi) |
| Speed Range | 600 – 2,400 rpm (size dependent) |
| Control Options | DR (pressure control), DFR (pressure/flow control), LR (flow control), DFE (electronic proportional) |
| Rotation | Clockwise (viewed from shaft end); CCW available on request |
| Mounting Flange | ISO 3019 / SAE J744 |
| Shaft Type | Splined / cylindrical per DIN or SAE standard |
| Port Connection | SAE flange / BSP / metric thread |
| Fluid Compatibility | Mineral oil (HLP/HM), biodegradable fluids (HETG, HEPG, HEES) on request |
| Operating Temperature | -25°C to +80°C (fluid dependent) |
| Filtration Requirement | ISO 4406 Class 18/16/13 or better |
| Weight Range | 28 kg (size 40) – 420 kg (size 750) |
| Expected Service Life | 20,000+ hours at nominal conditions |
OEM / ODM Capabilities
Olive Branch Hydraulics operates as a full-service A4VSO hydraulic pump replacement manufacturing partner. Whether you need white-label units for your distribution network or custom-configured pumps for a specific application, we deliver.
Customization Options
| Customization Area | Available Options |
|---|---|
| Branding | White-label (your logo, nameplate, packaging) or unbranded |
| Shaft Configuration | Custom spline profiles, extended shafts, special keyways |
| Port Orientation | Non-standard port positions to match existing system layouts |
| Seal Materials | FKM, NBR, PTFE, or specialty compounds for extreme temperatures |
| Control Variants | Application-specific pressure/flow curves, electronic control integration |
| Coatings & Treatments | Nickel plating, hard chrome, phosphate coating for corrosive environments |
| Packaging | Bulk, individual box, branded retail packaging, export-grade crating |
| Documentation | Custom technical manuals, multilingual datasheets, compliance certificates |
Partnership Model
- MOQ: As low as 5 units for standard sizes; negotiable for ongoing contracts
- Lead Time: 15–25 working days (standard); 7–10 days (stocked configurations)
- Sample Policy: Paid samples with cost credited against first bulk order
- Quality Assurance: 100% pressure-tested before shipment; test reports included
- Certifications: CE marking available; ISO 9001-compliant manufacturing facility
Frequently Asked Questions
Is this pump a direct replacement for the original Rexroth A4VSO?
Yes. Our A4VSO variable displacement pump matches OEM mounting dimensions, port locations, shaft specifications, and performance curves. It installs directly into existing systems without modification.
What quality control measures do you follow?
Every unit undergoes a multi-stage inspection process: dimensional verification, surface finish measurement, assembly torque checks, and a full-pressure function test at rated conditions. Test data is recorded and available upon request.
Can I order a small trial quantity before committing to volume?
Absolutely. We support sample orders (minimum 1–5 units depending on model) so your engineering team can validate fit and performance before scaling up.
What is the typical lead time?
Standard configurations ship within 15–25 working days. High-demand sizes (A4VSO 71, 125, 180) are often available from stock in 7–10 days. We recommend confirming current availability at inquiry.
Do you provide technical support after purchase?
Yes. Our engineering team provides installation guidance, troubleshooting support, and system integration advice at no additional charge. Response time is within 24 hours on business days.
What payment and shipping terms do you offer?
We accept T/T, L/C, and trade assurance payments. Shipping via sea, air, or express courier (DHL/FedEx/UPS) with full export documentation and insurance options.
Get a Competitive Quote in 24 Hours
Ready to source a reliable A4VSO axial piston pump at a price point that improves your project margins?
Send us your inquiry now — include your required model size, quantity, and any customization needs. Our sales engineers will respond within 24 hours with pricing, lead time, and technical confirmation.
Olive Branch Hydraulics — Your Trusted A4VSO Piston Pump Supplier from China. 10+ Years of Manufacturing Excellence.
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