Product Description: A11VLO260 Series Axial Piston Variable Pump (Model: A11VLO260DRG/11R-NZD12N00 | Part No.: R902164276)

As a flagship heavy-duty power component in industrial hydraulic systems, the  A11VLO260 Series Axial Piston Variable Pump redefines reliability and precision for high-load, high-pressure applications. The signature model A11VLO260DRG/11R-NZD12N00 (Part No.: R902164276) integrates advanced DRG regulator technology, reinforced structural design, and versatile compatibility, while the series’ diverse variants—including A11VLO260DR, A11VLO260DRS, and cross-series A11VO260DR/G/RS—cater to customized hydraulic system demands. Engineered for continuous operation in extreme conditions, this pump serves as the "energy backbone" for heavy machinery, delivering uncompromising performance for critical industrial processes. Below is a comprehensive breakdown of its core value, model decoding, performance strengths, application scenarios, and cross-series compatibility.

I. Core Positioning: Heavy-Duty Powerhouse with Precision Regulation

The A11VLO260 Series belongs to the elite A11VLO/A11VO product family, specialized as an axial piston variable displacement pump for  closed and open hydraulic circuits—ideal for heavy-duty applications requiring sustained high pressure, large flow output, and dynamic load adaptation. Its core positioning focuses on "extreme-performance industrial scenarios"—from mining and construction to metallurgy and marine operations—where equipment reliability directly impacts productivity and safety.

At the heart of its design is the integrated  DRG regulator (a reinforced DR-type control module with gear-enhanced stability), which enables precise pressure and flow control to match real-time load demands. The model A11VLO260DRG/11R-NZD12N00, paired with the exclusive part number R902164276, is engineered for seamless replacement and rapid integration with existing systems, minimizing downtime and maintenance costs for industrial operators relying on continuous production.

II. Full Model Interpretation: Decoding Technical Specifications

Every segment of the A11VLO260 Series model code conveys precise technical information, ensuring compatibility with specific system requirements. Here’s a detailed breakdown of the target model:

Code Segment	Core Meaning
A11VLO	Product Series Identifier: Premium heavy-duty series from the A11VLO/A11VO family, designed for high-pressure (up to 40 MPa peak) and high-load hydraulic systems, featuring enhanced structural rigidity, wear-resistant components, and modular design.
260	Displacement Specification: Nominal displacement of 260 cm³/rev, optimized to deliver massive flow output (ideal for large actuators, hydraulic presses, and heavy machinery) while maintaining energy efficiency.
DRG	Control Regulator Type: "DR" denotes a pressure-compensated regulator; "G" signifies a reinforced gear mechanism for enhanced torque transmission, stability, and resistance to shock loads—critical for rugged industrial environments.
/11R	Pressure Rating & Rotation Direction: "11" refers to the regulator’s optimized control range for system pressures up to 35 MPa (5075 psi) continuous operation (40 MPa peak); "R" denotes clockwise rotation (viewed from the shaft end), aligning with standard heavy-industry drive configurations.
-NZD12N00	Interface & Configuration Code: "NZD" indicates the ISO 6149-2 compliant hydraulic interface (flange and port design) for universal compatibility; "12N00" denotes the neutral position setting and standard accessory configuration, ensuring seamless integration with most industrial hydraulic control valves and systems.

III. Core Performance Advantages: Engineered for Extreme Conditions

1. Advanced DRG Regulation & Precision Control

Equipped with a factory-calibrated DRG regulator, the pump supports automatic pressure-compensated flow control (0-100% stepless regulation) that dynamically adapts to real-time system demands. The reinforced gear mechanism (G) enhances regulator stability under shock loads and frequent start-stops, while the response time of less than 40ms ensures rapid adaptation to sudden load changes. This eliminates energy waste, prevents system overload, and maintains precise speed/force control—ideal for applications like mining crushers, construction excavators, and forging presses.

2. High-Pressure Resistance & Massive Flow Output

Built with a forged steel housing, hardened alloy cylinder block, and chrome-plated pistons, the pump withstands continuous high-pressure operation (35 MPa continuous, 40 MPa peak). Its volumetric efficiency exceeds 95%, minimizing internal leakage and delivering consistent flow output even under extreme loads. The optimized oil distribution design reduces pressure pulsation, protecting downstream components (valves, hoses) and extending overall system lifespan.

3. Rugged Durability & Low Maintenance

The pump features a heavy-duty modular design—key components (piston, swashplate, DRG regulator) are crafted from wear-resistant, corrosion-proof materials (e.g., ceramic coatings, heat-treated steel) to withstand harsh environments (dust, moisture, extreme temperatures). The IP65-rated sealed housing prevents contaminant ingress, while the interchangeable parts across the A11VLO260/A11VO260 series simplify maintenance. Under normal operating conditions, the mean time between failures (MTBF) exceeds 8,500 hours, ensuring minimal downtime and long-term reliability.

4. Wide Adaptability & Cross-Series Compatibility

Compatible with a range of hydraulic oils (mineral oil, synthetic oil, fire-resistant fluid) and operating temperatures (-25°C to 95°C), the pump adapts to diverse industrial scenarios—from arctic construction sites to tropical mines. Its mounting flange and shaft end design comply with ISO 3019/2 standards, enabling direct replacement of legacy A11VLO260 and A11VO260 variants (e.g., A11VO260DR, A11VO260DRG) without modifying the original equipment structure.

IV. Application Scenarios: Tailored for Heavy-Duty Industries

The A11VLO260DRG/11R-NZD12N00 (Part No.: R902164276) and its series variants are widely utilized in high-demand hydraulic systems across industries:

• Mining & Quarrying: Hydraulic shovels, crushers, conveyor systems, and drilling rigs.

• Construction & Infrastructure: Bulldozers, excavators, concrete pumps, and bridge-building machinery.

• Metallurgy & Forging: Steel rolling mills, forging presses, and continuous casting machines.

• Marine & Offshore: Ship deck cranes, offshore platform hydraulic systems, and port loading equipment.

• Agriculture & Forestry: Large-scale combine harvesters, forestry harvesters, and heavy tractors.

• Industrial Automation: Heavy-duty hydraulic stations, automated production lines for large components, and material handling equipment.

V. Series Compatibility & Related Variants

The A11VLO260 Series offers flexible variants (and cross-compatibility with A11VO260 models) to meet specialized control and performance needs, with core components interchangeable for unified maintenance:

• A11VLO260DR: Standard DR regulator variant (without gear reinforcement), ideal for stationary heavy machinery like hydraulic presses.

• A11VLO260DRS: Servo-controlled DR regulator variant (S), supporting electronic proportional control for Industry 4.0-integrated smart systems.

• A11VLO260EP2: Electronic proportional control variant (EP2), featuring digital interface for PLC integration and precise flow/pressure programming.

• A11VLO260LRDS: Linear-response (LR) servo-controlled variant, optimized for applications requiring ultra-smooth flow regulation (e.g., precision forging).

• A11VO260DR/G/RS: Cross-series A11VO variants (compatible with A11VLO260 components), designed for specialized closed-circuit systems (e.g., marine propulsion).

All variants meet international quality certifications (ISO 9001, CE, API) and adhere to strict industrial standards, ensuring consistent performance and compatibility.

VI. Product Summary

The A11VLO260DRG/11R-NZD12N00 (Part No.: R902164276) is a heavy-duty, high-performance axial piston variable pump engineered for the most demanding industrial applications. Its unique combination of advanced DRG regulation, high-pressure resistance, rugged durability, and cross-series compatibility makes it the preferred choice for heavy machinery and critical hydraulic systems. Whether for new equipment integration, legacy pump replacement, or custom hydraulic system design, this model delivers uncompromising performance, energy efficiency, and operational stability—empowering businesses to maximize productivity even in extreme working conditions. Backed by a global after-sales network, it also provides comprehensive technical support, spare parts, and on-site maintenance services for long-term peace of mind.