Hydraulic Piston Pump Series and Key Specifications
| Series | Pump Type | Pressure / Flow | Options / Features |
|---|---|---|---|
| DA10V(S)O | Open-circuit axial piston pump | 10–140 cm³/rev | 280 bar rated / 350 bar peak | DR / DFR / DFR1 / DFLR controls | R / L rotation | NBR / FKM / EPR seals |
| DA11V | Heavy-duty open-circuit series | 28–260 cm³/rev | LR / DR / DRS / LRDS / DRG / EP controls | Optional charge pump | SAE flange options |
| DA4VSO | Industrial open-circuit variable pump | 40–355 cm³/rev | 350 bar nominal / 400 bar peak | DR / DP / DRG / DFR / LR2 controls | R / L rotation | SAE or metric shaft options |
| AR16 | Compact variable piston pump | 15.8 cm³/rev | 160 bar rated | 600–1800 r/min | Pressure compensator type | Flange mounting | Axial or side port |
| CY14 | Axial piston pump / motor series | 1.25–400 mL/r | 315 bar pressure stage | Fixed / Manual variable / Pressure compensation / Constant pressure / Servo / Electric variable |
| DPV | Variable piston pump series | 10.5–94.5 cc/rev | Up to 210 bar / 3000 psi on selected models | Pressure compensator / Load sensing / Electric dual range pressure | Keyed or splined shaft | NBR / FKM seals |
| DA2FO | Fixed displacement bent-axis pump | 5–250 NG sizes | Open-loop pump | R / L rotation | FKM seal | DIN 5480 spline / DIN 6885 keyed / Conical shaft |
| DA2F | Fixed displacement bent-axis unit | 10–355 mL/r | R / L / W rotation | Keyed or splined shaft | Metric or SAE port plate options |
Top-Selling Hydraulic Piston Pumps
Choose from our popular hydraulic piston pump series.Our company can help confirm the model parameters before quotation.
DA10V(S)O axial piston pumps are built for open circuit hydraulic system in mobile machinery and industrial equipment.
Variable displacement design can more easily match flow requirements, pressure control and system efficiency.
10-140 cm³/rev | 280 bar rated | 350 bar peak
DA11V axial piston pumps support high flow hydraulic systems that need stable output and flexible controls.
The optional charge pump and multiple control types make model matching easier for heavy mobile and industrial applications.
28-260 cm³/rev | LR/DR/DRS/LRDS/EP
DA4VSO heavy-duty piston pumps are built for high-pressure industrial hydraulic systems and continuous-duty operation.
A variety of control options support presses, marine equipment, metallurgical systems and large hydraulic power units.
40–355 cm³/rev | 350 bar nominal | 400 bar peak
AR16 axial piston pump is a compact solution for small hydraulic power units, machine tools and light industrial systems.
Pressure compensator control helps maintain stable operation, in which space, noise and efficiency matter.
15.8 cm³/rev | 160 bar rated | 600–1800 r/min
CY14 axial piston pumps cover fixed, manual variable, pressure-compensated and constant-pressure control needs.
Wide displacement options make this series suitable for general hydraulic machinery, power units and replacement projects.
1.25–400 mL/r | 315 bar pressure stage
DPV high-pressure piston pump is designed for compact hydraulic systems that require reliable pressure and variable flow control.
Pressure compensator, load sensing and shaft options help buyers match different mobile or industrial pump requirements.
10.5–94.5 cc/rev | Up to 210 bar / 3000 psi
DA2FO bent-axis piston pumps provide fixed displacement output for open-loop hydraulic systems.
R/L rotation, FKM seals and multiple shaft options support industrial, mobile and replacement applications.
5–250 NG sizes | Fixed displacement
DA2F bent-axis piston pumps provide fixed displacement output for hydraulic drive and power transmission systems.
Keyed or splined shaft options and SAE or metric port plates make replacement and system matching more flexible.
10–355 mL/r | Fixed displacement
What is a Piston Pump?
A hydraulic piston pump converts mechanical power into hydraulic flow through reciprocating pistons. Compared with simple gear pumps, piston pumps are often used where higher pressure, variable flow control and better efficiency are required.
Adiffer provides axial piston pump, high pressure piston pump and inclined shaft piston pump for engineering machinery, industrial equipment, hydraulic power plant and mobile system. Our team helps the purchaser confirm the displacement, pressure range, rotation direction, shaft type, mounting flange, port connection and sealing material prior to quotation.
For replacement projects, customers can provide old pump model codes, nameplate photos or installation drawings. This helps reduce incorrect model selection, installation delays, and repetitive service work.
Our High-Pressure Piston Pumps
Ensures production continuity and rapid response support.
Tailored to your specific flow and displacement needs.
Seamless integration via ISO and SAE mounting specs.
Model code, shaft, flange, port and rotation details are checked before supply.
Proven performance in construction, mining and marine applications.
Axial Piston Pumps for Mobile and Industrial Systems
DA10V(S)O, DA11V, AR and CY14 axial piston pumps are available for different hydraulic systems.
Multiple control options help match pressure, flow and power demand more accurately.
Suitable for construction machinery, industrial equipment, hydraulic power units and mobile systems.
Designed for stable oil delivery and continuous operation in demanding hydraulic circuits.
Our team helps confirm displacement, rotation, shaft, port and seal options before supply.
4 Reasons Buyers Choose Adiffer Piston Pumps
Different piston pumps are built for stable pressure, precise flow control and practical replacement support. From model matching to full load testing, each step of the design is to reduce the selection risk and installation delay.
Load-sensing, pressure control and electro-proportional options help match system demand.
Shaft, flange, port and control options can be checked against the old pump model.
Pump performance is checked before delivery to support stable installation and commissioning.
Shaft, flange, port direction and control settings can be reviewed for OEM or repair projects.
Resources for Piston Pumps
Your top one-stop Piston Pump manufacturer and supplier in China
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35 Years of Factory & Export Experience: We make your purchase safer, faster, and easier.
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Global Presence & Agents Welcome: Our pumps work in more than 50 countries across 5 continents. We are growing rapidly and warmly welcome local agents to join our network.
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Easy Global Delivery: We ship to North America, Europe, and Asia. We support FOB, CIF, and DDP terms and handle all shipping details.
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Replacement Cost Support: We help buyers find suitable replacement options while keeping quality, fit and delivery requirements in balance..
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One-Stop Procurement: We provide complete hydraulic solutions. Buy your valves, pumps, motors, and parts all in one place.
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Piston Pump Applications Worldwide
Adiffer piston pumps are used in construction machinery, industrial hydraulic power units, mobile equipment, marine systems and repair-market replacement projects. These applications require stable pressure, accurate flow control and reliable operation under continuous-duty conditions.
In excavators, loaders and other mobile machinery, the piston pump must provide stable pressure and flow under changing load conditions. DA10V(S)O, DA11V and DPV series pumps can support open-circuit hydraulic systems where flow control, pressure response and replacement matching are important.
For repair and replacement projects, Adiffer helps check model code, displacement, rotation, shaft type, port position and control method before quotation.
DA2F and DA2FO bent-axis piston pumps are suitable for hydraulic drive systems that need fixed displacement output, compact structure and reliable oil delivery. They are often selected for mobile equipment, industrial drive systems and replacement projects where shaft, port plate and rotation direction must match the existing installation.
Top-Selling Piston Pump Series
Explore our complete piston pump series below. All are in stock and ready to ship.
- Piston Pump Cross-Reference Table
| Series | Displacement | Rated Pressure | Peak Pressure | Control Type | Mounting Flange / Shaft |
|---|---|---|---|---|---|
| DA10V(S)O | 10–140 cm³/rev | 280 bar | 350 bar | DR, DRG, DFR / DFR1, DFLR, ED71 / 72, LA*D | SAE / ISO flange, keyed / splined shaft, through-drive options |
| DA4VSO | 40–355 cm³/rev | 350 bar | 400 bar | DR, DP, DRG, DFR, LR2 | SAE / metric flange, SAE / metric shaft options |
| DA15V | 110, 145, 175, 210, 280 cm³/rev | 350 bar | 420 bar | LR, DR, DG, DP, E2, E6, H3, H4 / H5, V2, T6 / T8, S0 | Keyed shaft B1 / B2 / B4, SAE J744 through-drive |
| A10 | 10.0 cm³/rev | 160 bar | 210 bar | 01: Pressure compensator | Flange mounting, keyed shaft |
| A16 / A22 | 15.8, 22.2 cm³/rev | 160 bar | 210 / 160 bar | 01, 04: Load sensing | Flange / foot mounting, keyed shaft |
| A37 / A56 | 36.9, 56.2 cm³/rev | 160 bar | 210 bar | 01, 04: Load sensing | Flange / foot mounting, keyed shaft |
| A70 / A90 / A100 / A145 | 70.0, 91.0, 100, 145 cm³/rev | 210 bar | 210–280 bar | 01, 04: Load sensing | Flange / foot mounting, side port, keyed shaft |
| DACA | 63.66, 75.28, 89.13, 105.4, 124.8 cm³/rev | 350 bar | 420 bar | MA, HA-HK, EJ / SC, FR / FS | SAE B / C-pad, keyed / splined / conical shaft, charge pump: 13.9–34.7 cm³/r |
Testimonials
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We operate 30-ton excavators in heavy construction, and downtime is not an option. Adiffer’s DACA series pumps are a direct drop-in replacement with no plumbing or mounting changes. Cross power sensing control optimizes fuel use, and after 2,000 hours they remain within factory spec. Reliable OEM-quality performance without the OEM cost.
MichaelOntario -
Our closed-circuit test bench needed a bent-axis pump with low-speed stability and no stick-slip. Adiffer’s DA6VM series delivered — stable below 50 rpm, simplified control loop, with full-load test certificate and FKM seals. High-quality precision performance at a lower cost than domestic suppliers.
Kenji TakahashiTokyo -
In tropical, dusty conditions with continuous use, most variable pumps overheat or fail. Adiffer axial piston pumps, installed for over a year, keep oil cooler with load-sensing control, and FKM seals handle heat without leaks. Factory-direct pricing provides a reliable, cost-effective OEM alternative.
Somsak ChaiyapornBangkok
FAQs
- We offer optimized solutions based on your circuit type:
- Mobile Machinery (Excavators): DACA or DK3V/DK5V series (Direct drop-in for Ka-type/Re-type).
- Closed-Circuit (High Pressure): DA6VM series, ideal for low-speed stability and travel drives.
- Industrial Open-Circuit: DA10V or A-series axial piston pumps.
- Not sure? Send us your OEM nameplate, and our engineers will match it within 24 hours.
- Displacement: 8cc – 320cc.
- Rated Pressure: 160 – 400 bar (Peak up to 450 bar for DA4VSO).
- Performance: High volumetric efficiency ensures minimal energy loss and heat generation.
- Factory-Direct: We eliminate intermediaries and high brand premiums.
- Integrated Supply Chain: In-house precision processing and heat treatment reduce production costs.
- Focus on R&D: We invest in performance and durability rather than complex global marketing.
- Stock Models (DA10V, DACA, DA6VM): Ready for shipment in 1–2 weeks.
- Customized Units: Specialized shafts or control modules typically take 4–6 weeks.
- Emergency Support: Expedited production is available for critical “Machine Down” situations.
- Every pump is 100% tested before dispatch to ensure “Plug-and-Play” reliability.
- Metric: Volumetric efficiency, pressure holding, and control response time.
- Quality: Verified noise levels and mechanical vibration checks.
- Result: A full test report is included, ensuring zero on-site debugging.
Yes. Our pumps are engineered for seamless interchangeability:
- Physical Match: Mounting flanges, shafts, and ports meet international ISO/SAE standards.
- Control Compatibility: Direct replacement for existing hydraulic control logic.
- Benefit: Zero plumbing changes required, minimizing downtime.
Absolutely. We specialize in tailored modifications:
- Hardware: Custom spline profiles, unique flange adaptations, and port directions.
- Software/Control: Specific pressure/flow control logic settings to match your system’s requirements.
Our products are field-proven in high-demand sectors:
- Construction: Excavators, pavers, and mining equipment.
- Marine: Deck machinery, winches, and steering systems.
- Industrial: Hydraulic power units (HPUs), presses, and injection molding.
To get an accurate quote within 24 hours, please provide:
- Current Pump Model or OEM Part Number.
- Key Specs: Displacement, Max Pressure, and Rotation (CW/CCW).
Adiffer Hydraulic Piston Pump
We have an extensive inventory of hydraulic piston pumps & motors from professional manufacturers. Whether it’s a mobile or industrial application, many units are in stock and available for immediate delivery. All units are fully tested and set to OEM specifications before leaving any of our facilities and are backed by an industry leading warranty.
Open circuit, variable swashplate piston pumps. Optimized for heavy duty industrial and marine applications. Operating pressures of up to 420 bar, high speed ratings and a wide range of highly responsive controls. Displacements from 10 to 1000 cc/rev.
Adiffer offers a comprehensive selection of both fixed and variable pump types, utilizing inline and axis piston technologies to provide solutions for various applications in many industries such as Construction, Marine, Mining, and Oil & Gas. There are two types of (hydrostatic) piston pumps: open circuit and closed circuit piston pumps, suitable for various fluid types including standard hydraulic oil, water glycol, phosphate ester, and biodegradable. Our piston Pumps offer reliable performance, high precision, and compact designs.
Our company also offers a variety of customization options to ensure that your hydraulic system meets your exact needs and specifications. We can design the applicable product to meet the needs of your industries. Contact us for more information.
Decoding special part numbers
Interchange component part numbers
Conversions from obsolete to current design
Troubleshooting assistance
Component failure analysis
System contamination control plans
Hydraulic engineering expertise
Cylinderblock – The cylinder block contains the pistons and valves, providing structural support for the entire pump.
Pistons –Pistons are the main components of the pump and are responsible for the pumping action.
Valves – The valves control the flow of fluid in and out of the pump, allowing the pistons to move.
Suction and Delivery Ports –These are the inlet and outlet ports of the pump, allowing the fluid to be drawn in and expelled out.
Drive Shaft –The drive shaft is connected to the motor, transmitting the power to turn the pump.
Relief Valve – The relief valve is a safety device that prevents the over-pressurizing of the pump.
Our team of trained engineers and technicians have been occupied in hydrostatic pumps for over 20 years. Our large selection of Piston pump parts and units in inventory allows us to aftermarket nearly any piston pump in the heavy duty mobile equipment market.
Automotive and Industrial Machinery
Construction Equipment
Mining Machinery
Agricultural Equipment
Marine Equipment
Pumping Systems
Off-highway Vehicles
Waste Water Treatment Systems
Fire Fighting Systems
Power Generation Equipment
Over 8,000 units in stock
Aftermarket pumps tested for volumetric efficiency, external leakage, and sound level
Over 15 dedicated test stands
Up to 85% off list price by buying a after market manufactured unit
All pumps meet or exceed adiffer manufacturers’ specifications
Unmatched inventory, test capabilities, and technical knowledge
Comprehensive 18-month/12-month warranty on new units
Additionally, we can customize the materials used in the pump, such as iron, steel, and other metals, as well as the type of seals and components that are used.
Decoding special part numbers
Interchange component part numbers
Conversions from obsolete to current design
Troubleshooting assistance
Component failure analysis
System contamination control plans
Hydraulic engineering expertise