A11VLO190+190 Variable Displacement Piston Pump
3 month ago
Product details
A11VLO190+190 Variable Displacement Piston Pump (Rexroth A11VLO190+190 Dual-Unit Variable Displacement Piston Pump) Specific Details
I. Product Overview
• Brand & Model: Rexroth A11VLO190+190, a dual-unit variable displacement piston pump from the A11VLO series.
• Application Areas: Widely used in construction machinery, mining machinery, metallurgical machinery, marine machinery, and other fields, such as concrete pump trucks, roadheaders, cranes, and other equipment.
II. Technical Features
1. Dual-Unit Design:
• Composed of two independent A11VLO190 pump units integrated through a common shaft drive, achieving power superposition and flow multiplication.
• Each pump unit can operate independently or in coordination, enhancing system flexibility and reliability.
2. Variable Control:
• Adopts a swashplate variable design, adjusting pump displacement by changing the swashplate angle for stepless variation in output flow.
• Output flow is proportional to driving speed, allowing stepless adjustment between qV max and qV min = 0.
• Offers multiple control modes, such as pressure control, flow control, and power control, to meet different operating conditions.
3. High Pressure & Efficiency:
• Nominal pressure of 350 bar, with a peak pressure of up to 400 bar, suitable for high-pressure hydraulic systems.
• Utilizes an advanced axial piston design with high volumetric and mechanical efficiency, reducing energy consumption and heat generation.
4. Compact Structure:
• Short axial dimensions and a compact structure facilitate easy installation and layout.
• The common shaft design allows for the stacking of additional pumps or motors, further expanding system functionality.
5. Durable & Reliable:
• Key components are made of high-strength materials, precision-machined, and heat-treated for high wear resistance and fatigue strength.
• Equipped with long-life, high-precision, full-complement cylindrical roller bearings, reducing vibration and noise while enhancing operational stability.
III. Application Scenarios
1. Concrete Pump Trucks:
• Serves as the main oil pump, providing high-pressure hydraulic power for the boom, pumping, and other systems of concrete pump trucks.
• The dual-unit design enhances system redundancy and reliability, ensuring continuous operation of concrete pump trucks.
2. Roadheaders:
• Used in the walking, cutting, and loading systems of roadheaders, providing stable and reliable power support.
• The variable control function allows for real-time adjustment of pump displacement based on tunneling conditions, improving tunneling efficiency and energy-saving effects.
3. Cranes:
• Acts as the power source for the lifting, luffing, and slewing systems of cranes, meeting the demand for high-pressure, large-flow hydraulic systems.
• The dual-unit design enhances the lifting capacity and stability of cranes, ensuring safe and reliable lifting operations.
IV. Selection & Configuration
• Model Selection: Choose the appropriate A11VLO190+190 pump model and configuration based on the hydraulic system requirements and operating conditions of the equipment.
• Control Mode: Select the appropriate control mode, such as pressure control, flow control, or power control, based on the equipment's control needs.
• Accessory Configuration: Configure relevant accessories as needed, such as electric control valves, hydraulic control valves, filters, coolers, etc., to improve system performance and reliability.
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