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As a premier manufacturer and global supplier of heavy-duty fluid power solutions, we proudly present the Sauer Danfoss 90 Series Hydraulic Axial Piston Pump. Engineered specifically for closed-circuit applications, this unit delivers unparalleled power density, precise fluid control, and exceptional operational stability for heavy machinery.
Compact, lightweight parallel axial piston architecture.
Advanced tiltable swashplate for seamless directional flow changes.
Integrated charge pump for optimal cooling and continuous fluid replenishment.
Fully compliant with Plus+1™ control systems and intelligent sensors.
The Sauer Danfoss 90 Series, encompassing both the highly sought-after 90R and 90L configurations, represents the absolute pinnacle of hydrostatic power transmission. When you handle this pump, the robust cast-iron housing and precision-machined mounting flanges immediately convey a profound sense of industrial-grade durability and meticulous craftsmanship. Designed specifically for closed-circuit operations, these variable displacement pumps utilize a highly efficient parallel axial piston and slipper mechanism. This intricate internal geometry, coupled with a highly responsive tiltable swashplate, allows operators to seamlessly vary the fluid displacement with absolute precision. By simply reversing the angle of the swashplate, the flow of hydraulic oil is instantly reversed, resulting in a smooth, shock-free change in the rotation direction of the connected motor output.
You can almost hear the quiet, low-vibration hum of the fluid dynamics at work, a true testament to the microscopic internal tolerances achieved during the manufacturing process. Furthermore, the integral charge pump works silently in the background, constantly replenishing the system and providing a steady stream of cooling oil to prevent thermal degradation during peak operational hours in harsh environments. Whether tasked with driving the heavy steel tracks of a mining excavator or managing the continuous rotational force of a concrete transit mixer, this pump ensures that your machinery operates with maximum uptime. The tactile feedback of the control mechanisms, combined with the scent of fresh hydraulic fluid moving through a perfectly sealed system, assures procurement engineers and fleet managers that they are investing in a component built to drive operational profitability and drastically reduce maintenance intervals.

| Product Name | Sauer Danfoss 90 Series Hydraulic Axial Piston Pump (90R / 90L) |
|---|---|
| Product Models | 90R030, 90L030, 90R042, 90L042, 90R055, 90L055, 90R075, 90L075, 90R100, 90L100, 90R130, 90L130, 90R180, 90L180, 90R250, 90L250 |
| Structural Design | Parallel axial piston/slipper design with tiltable swashplate |
| Application Circuit | Closed circuit applications |
| Displacement Range | 30 cm³/rev - 250 cm³/rev |
| Rated System Pressure | 420 bar (6000 psi) |
| Maximum System Pressure | 450 bar (6500 psi) |
| Minimum Low Loop Pressure | 10 bar (150 psi) |
| Minimum Input Speed | 500 rpm |
| Continuous Input Speed | 2300 rpm - 4200 rpm (varies by model) |
| Maximum Input Speed | 2500 rpm - 4600 rpm (varies by model) |
| Mounting Standard | SAE J744 (B, C, D, E type flanges) |
| Control Options | Mechanical (MDC), Hydraulic (HDC), Electric (EDC), 3-Position Electric Solenoid (FNR), Non-Linear Manual |
| Filtration Options | Suction filtration, Remote pressure filtration, Integral pressure filter |
| Weight Range | 34 kg - 154 kg (with MA control option) |
| Main Materials | Cast iron / Imported high-strength wear-resistant materials |
| Additional Configurations | Integral charge pump, Auxiliary mounting pads, Plus+1™ compliant controls and sensors |
Investing in the right hydraulic components is crucial for maintaining the operational integrity of your heavy machinery fleets. The 90 Series pump is engineered not just to meet, but to exceed the rigorous demands of modern industrial applications. By integrating advanced fluid dynamics with robust mechanical engineering, this pump solves common issues related to overheating, pressure drops, and control latency.
Proven Reliability: Built upon decades of engineering excellence, this series offers a track record of unmatched performance in the most demanding environments, ensuring your projects stay on schedule.
Worldwide Serviceability: Designed with standardized components and configurations, allowing for easy maintenance, rapid parts replacement, and global service support to minimize equipment downtime.
Loop Flushing Capability: Optional loop flushing features provide an extra layer of protection by offering additional cooling and continuous cleaning of the hydraulic fluid within the working loop.
Cartridge Mount Configurations: Offers versatile installation options that save space and reduce the complexity of the hydraulic circuit design, making it a favorite among equipment manufacturers.
Low Noise Emissions: Precisely engineered internal porting and piston timing significantly reduce the acoustic footprint, creating a safer and more comfortable environment for equipment operators.

The foundation of the Sauer Danfoss 90 Series lies in its exceptional core performance and intelligent structural design. Utilizing a parallel axial piston and slipper concept combined with a highly responsive tiltable swashplate, this pump achieves an extraordinary power density. This means you get maximum hydraulic output from a surprisingly compact and lightweight footprint, freeing up valuable space within the machine's engine compartment.
Specifically engineered for closed-circuit hydraulic systems, ensuring seamless integration and fluid management.
Smooth and instantaneous forward-to-reverse transitions without pressure spikes, protecting connected hydraulic motors.
Compact housing design reduces the overall weight of the machinery, contributing to better fuel efficiency and maneuverability.
High volumetric efficiency ensures that mechanical input power is converted into hydraulic power with minimal energy loss.

Different applications require different levels of power and control. We understand that a one-size-fits-all approach does not work for complex heavy machinery. Therefore, this series offers an extensive range of displacements and control mechanisms, allowing procurement specialists to specify the exact configuration needed for their unique equipment requirements.
Wide Displacement Range: Available in 7 distinct frame sizes ranging from 30 cm³/rev up to a massive 250 cm³/rev, providing solutions for both nimble loaders and massive mining drills.
Stepless Adjustment: The variable displacement capability allows for infinite speed control of the connected hydraulic motor.
Diverse Control Systems: Choose from Mechanical Displacement Control (MDC), Hydraulic Displacement Control (HDC), or Electrical Displacement Control (EDC) to match your machine's interface.
Smart Integration: Fully compatible with PLUS+1™ microcontrollers and sensors, enabling advanced electronic load sensing and automated machine management.
When operating in harsh environments like quarries, construction sites, or agricultural fields, equipment failure is not an option. The 90 Series is constructed to withstand extreme mechanical stress and high-pressure spikes, ensuring a long service life even under continuous heavy-duty cycles.
Exceptional Pressure Ratings: Capable of sustaining a rated system pressure of 420 bar (6000 psi) and handling peak maximum pressures up to 450 bar (6500 psi).
Premium Materials: Manufactured using high-grade cast iron and imported high-strength, wear-resistant materials for the internal rotating group.
Robust Bearing System: Engineered to handle high radial and axial loads, significantly extending the lifespan of the pump shaft and internal components.
Wear Resistance: The slipper and swashplate interface is hydrostatically balanced to minimize metal-to-metal contact, reducing wear and tear over thousands of operating hours.

Versatility is a key factor when selecting hydraulic components for a diverse fleet of machinery. The 90 Series is designed with industry-standard mounting interfaces, making it the ideal choice for both new equipment manufacturing and aftermarket replacements or upgrades.
Standardized Flanges: Features SAE J744 compliant mounting flanges (available in B, C, D, and E configurations) for effortless coupling to prime movers.
Construction Machinery: Perfectly suited for the demanding drive systems of excavators, wheel loaders, and heavy-duty road rollers.
Agricultural Equipment: Provides reliable hydrostatic propulsion for large combine harvesters and high-horsepower tractors.
Specialty Vehicles: The go-to power source for concrete transit mixers, mining drill rigs, and forestry harvesting equipment.

Modern hydraulic circuits often require multiple power sources operating in tandem. The 90 Series is specifically designed to facilitate easy system expansion and integration, reducing the need for complex plumbing and additional drive shafts.
Integral Charge Pump: Built directly into the unit to continuously provide cooling fluid and replenish internal leakage, maintaining system pressure without external auxiliary pumps.
Auxiliary Mounting Pads: Equipped with SAE A, B, C, D, or E auxiliary mounting pads at the rear of the pump.
Tandem Configurations: Easily mount additional gear pumps or axial piston pumps in series to drive secondary hydraulic functions (like steering or implement control) from a single power take-off (PTO).
Integrated Filtration: Options for integral pressure filters ensure that the fluid entering the sensitive control mechanisms remains free of contaminants, safeguarding the entire system.
We recognize that consistency and reliability are the most critical metrics for volume purchasers and equipment manufacturers. Every single unit that leaves our facility undergoes a rigorous, uncompromising quality assurance process to guarantee out-of-the-box performance.
100% Factory Tested: Each pump is subjected to comprehensive dynamic testing under simulated peak load conditions before packaging.
Precision Metrics: We strictly monitor and verify low noise emissions, minimal pressure drops, and zero external leakage.
Response Time Verification: The control mechanisms are calibrated to ensure extremely short response times, guaranteeing precise machine handling.
Material Traceability: All high-stress internal components are tracked and verified to meet or exceed original equipment manufacturer (OEM) metallurgical standards.

Procuring heavy machinery components is a long-term commitment, and we stand by our partners long after the initial delivery. Our comprehensive service ecosystem is designed to eliminate downtime risks and support your specific branding and operational requirements.
Brand Customization: We offer flexible OEM and ODM production services, allowing you to integrate our high-performance pumps under your own brand identity.
Solid Warranty: Every pump is backed by a comprehensive 12-month quality guarantee against manufacturing defects.
Rapid Fulfillment: Leveraging our extensive inventory, standard models are dispatched within 48 hours, while custom configurations boast an efficient 15-day lead time.
Global Technical Support: Our dedicated engineering team provides 24/7 online troubleshooting, installation guidance, and maintenance support to ensure your operations never stall.

Selecting the right manufacturing partner is just as important as selecting the right product. With over a decade of dedicated experience in the fluid power industry, we have cultivated a reputation for manufacturing excellence, technical innovation, and unwavering customer dedication. Our facilities are equipped with state-of-the-art CNC machining centers and automated testing rigs, ensuring that every product reflects the highest standards of engineering.
Decade of Expertise: Over 10+ years of deep-rooted experience in manufacturing and supplying premium hydraulic components.
Direct Factory Advantage: By operating our own expansive production facilities, we maintain strict control over quality while offering highly competitive pricing structures.
Comprehensive Product Range: Beyond the 90 Series, we offer a vast portfolio of hydraulic valves, motors, and spare parts, serving as your one-stop procurement hub.
Rapid Response Team: Our dedicated sales and engineering staff guarantee a 24-hour quick response to all technical inquiries and quotation requests.
Strict Inspection Protocols: We employ a multi-tier quality control system, ensuring fast delivery without ever compromising on the rigorous inspection of every single unit.

To assist our global partners in making informed procurement decisions, we have compiled the most frequently asked technical and operational questions regarding our hydraulic solutions.
Our core manufacturing portfolio includes high-performance Hydraulic Pumps (such as axial piston and gear pumps), Hydraulic Valves, Hydraulic Motors, Hydraulic Cylinders, and a comprehensive range of precision Hydraulic Spare Parts. We are equipped to supply complete hydraulic drive solutions for heavy machinery.
We understand the need for flexibility in procurement, whether for prototyping, replacement, or large-scale production. Therefore, our MOQ is highly accommodating, starting at just 1 piece. This allows you to evaluate our product quality firsthand before committing to larger volumes.
For full production orders, we require a 30% deposit via T/T, with the remaining 70% balance to be cleared prior to shipment. For small replacement orders or sample evaluations, we require full payment in advance to expedite the rapid dispatch process.
To ensure seamless global transactions, we accept a wide array of secure payment methods. These include traditional T/T (Telegraphic Transfer), PayPal, VISA Card, Western Union, Apple Pay, Google Pay, Afterpay (Clearpay), and Klarna, providing you with maximum financial flexibility.
Quality assurance is our top priority. We promise that 100% of our products are dynamically tested on our rigs before shipping to confirm they are in perfect working condition and meet all pressure and flow specifications. Furthermore, we offer a solid 12-month guarantee. If the product fails to operate due to a manufacturing quality issue within this period, we will promptly send the necessary spare parts for repair.
Our relationship does not end at delivery. If you encounter any installation queries, operational issues, or require maintenance advice, please talk with your dedicated sales manager at any time. Our engineering team will immediately analyze your problem and provide step-by-step guidance to help you solve it, ensuring your machinery returns to optimal performance swiftly.







