«HRA» power pack
Hydraulic power packs with dual-stage flow and pressure control
Our dual-stage hydraulic power packs for flow and pressure control are designed to handle two different flow and pressure levels in order to optimise both the speed and force of the hydraulic action to meet operational requirements.
Ideal for applications requiring fast flow at low pressure followed by a higher pressure stage, they guarantee the power required to perform complex work efficiently and accurately.
Typical applications
Hydraulic presses
Used to shape and compact materials, they guarantee high speed first, followed by high power for the final compacting stage.
Industrial lifts
Designed to move heavy loads quickly, with high power in the final stage.
Extraction systems
Perfect for applications requiring a combination of speed and high pressure for accurate removal or shaping processes.
Main features
Dual-stage flow
In the first stage, the power pack delivers a high flow rate and low pressure, ensuring fast-flowing hydraulic fluid. This stage is useful for initial operations where not much force is required, such as rapid positioning of actuators.
In the second stage, the flow rate reduces but the pressure increases, allowing the control unit to deliver high power. This is excellent for operations requiring high pressure, such as clamping, lifting heavy loads, or pressing.
Operating efficiency
The system optimises energy consumption by automatically adjusting flow rate and pressure according to the processing required, reducing waste and increasing process efficiency.
Two-stage pump
The dual-stage power pack generally uses a two-stage pump, which may be either a gear/piston or a vane/piston model. This pump is designed to switch seamlessly between high flow/low pressure mode and low flow/high pressure mode.
Automatic switching valve
Dual-stage power packs include an HVD16 switching valve that automatically switches from high flow to high pressure mode when the system detects an increase in resistance or load on the actuator.
Versatility
These power packs are suitable for various industrial applications, such as hydraulic presses, hoists, metal cutting and bending machines, extrusion systems, and any other application that requires combined speed and power.
Less susceptible to overheating
As the power pack only uses the power required for the processing in hand, the risk of the hydraulic system overheating is much lower, lengthening the components' service life.
Hydraulic power pack with radial piston pump
These hydraulic power packs feature a hydraulic pump with pistons positioned radially around the central axis, forming a star-shaped structure.
This kind of setup allows high pressure levels and great reliability, making the power packs ideal for applications requiring considerable power and precision.
Typical applications
Hydraulic presses
For processing materials at high pressure.
Moulding and shaping machines
Mainly in the metal and plastics industry.
Testing systems
For testing components and materials under extreme loads.
Aerospace and automotive
Where precision and reliability are required.
Main features
Radial piston pump
Radial piston hydraulic pumps feature pistons that move radially to the central pump body. This design enables the pump to suck in and compress hydraulic fluid in order to generate very high pressures (700 bar and above).
High pressure
Hydraulic power packs with radial piston pumps are designed for applications where high pressure is essential. This makes them ideal for industries such as metalworking, where metal forming, shaping, and moulding machines require pressure of this kind.
High volumetric efficiency
Due to their optimised piston configuration, these power packs offer high volumetric efficiency, which minimises volume losses during the compression and release cycle. This results in greater energy efficiency and consistent performance even in harsh operating conditions.
Low noise
As radial piston pumps are well balanced, they tend to generate less vibration and noise than other pump types. This feature is particularly advantageous in industrial environments where noise levels must be kept low.
Durability and reliability
Thanks to their sturdy design and even load distribution across the pistons, these power packs offer a very long operating life. They are designed to withstand heavy loads and continuous operation without compromising performance.
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