A7V 107/117/160/250 Variable Piston Pump For Mining Machinery

Variable piston pump A7V 107/117/160/250 for Mining Machinery

1, Product Overview

The A7V 107/117/160/250 series is a Rexroth inclined axis variable axial piston pump, which is a benchmark product for heavy-duty, high-pressure, and high-power hydraulic systems. Renowned for its outstanding reliability, extremely high power density, and strong heavy-duty starting capability. This series of pumps is designed for open circuits and is widely used in important fields such as mining, metallurgy, shipbuilding, energy, building materials, and various large-scale engineering machinery.
The "inclined shaft" design of A7V pump (with an angle between its drive shaft and the cylinder axis, transmitting torque through mechanisms such as universal joints) enables it to have higher displacement and torque capacity compared to inclined disc pumps, as well as longer service life under harsh working conditions.

2, Core features and advantages

. Durable and long-lasting:
·Adopting heavy-duty bearing design, it has excellent impact load resistance and can withstand extremely high radial and axial forces.

. Powerful overload startup capability:

. Efficient variable mechanism:

·Provide multiple advanced forms of variable control, with fast response and high control accuracy.
·Common forms include:
·Constant power control (HD/EP control): Automatically adjusts the displacement to ensure that the output power of the pump does not exceed the set value, protects the prime mover from overloading, and fully utilizes the engine power.
·Pressure control (DR type/LA control): When the system pressure reaches the set value, the pump displacement automatically decreases to only compensate for leakage, achieving pressure holding standby and significant energy-saving effect.
·Electric proportional control (EL type): Flexible remote control is achieved by proportionally controlling the displacement through external electrical signals.
·Load sensitive control (LR type): automatically provides the required flow and pressure based on load requirements, resulting in high system efficiency.

3,Application

The A7V piston pump is widely used in:

·Mining machinery: underground loader (LHD), rock drilling trolley, hydraulic breaker, coal mine comprehensive mining equipment.
·Metallurgical equipment: Steel furnace tilting device, rolling mill auxiliary equipment, scrap steel processing machine.
·Marine engineering: deck machinery (such as anchors and winches), servos, bow thrusters, and ship cranes.
·Energy equipment: wind power variable pitch system, oil drilling equipment.
·Construction machinery: large hydraulic excavators, rotary drilling machines, shield tunneling machines, asphalt pavers.
·Industrial field: large injection molding machines, die-casting machines, hydraulic presses.
Choosing A7V means choosing the maximum reliability, production efficiency, and lifecycle value for your core equipment.
 

4,Important Notice:

The A7VO 107/117/160/250 series model code is complex, including various information such as displacement, control mode, shaft extension form, installation flange, rotation direction, etc.
When selecting, repairing, or purchasing accessories, it is essential to provide complete nameplate information on the pump body to ensure absolute accuracy.

5,Frequently Asked Questions(FAQ)

.Q: Are digital control options available for A7V piston pumps?

 · A: Yes, the  A7V 107/117/160/250 series offers electronic proportional controls with various interface options for integration with modern control systems.

· Q: Where can I find complete technical documentation? 

·A: Comprehensive technical manuals, dimension drawings, and performance curves are available , Contact us for complete documentation.

Company information

QUZHOU OUSTER HYDRAULIC Co., Ltd, founded in 2015 with more than 13 years export experience, specializes in procuring and selling hydraulic pumps and hydraulic pump parts.

Our main products include hydraulic pumps, hydraulic pump parts, hydraulic motors, gearboxes, and hydraulic valves. Our products have been exported to more than 68 countries worldwide.