TOX^® Powerpackage

Pneumohydraulic drives

About pneumohydraulic drives

Pneumohydraulic drives, often referred to as hydropneumatic cylinders, combine the advantages of pneumatics and hydraulics. They use compressed air to generate force and hydraulic fluid to transmit power. These drives are particularly efficient as they combine the high speed of pneumatics with the power and precision of hydraulics and are also extremely durable.

A key advantage of hydropneumatic cylinders is their ability to generate high forces in a compact design. This makes them ideal for applications in the automotive industry, mechanical engineering and manufacturing. They also offer a high degree of flexibility in use, as they can be easily adapted to different operating conditions.

The integration of the drive systems can lead to improved energy efficiency and a reduction in operating costs, making them an attractive choice for modern industrial applications.

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Functionality of the pneumohydraulic drives

Pneumohydraulic drives combine the advantages of compressed air and hydraulic systems by combining the fast movement of a pneumatic cylinder with the high force of a hydraulic system. The pneumatic cylinder ensures that the workpiece is approached quickly, while the final force or power stroke is achieved by the hydraulic component.

The drives are particularly efficient as they reduce energy consumption and at the same time enable high forces. In a hydropneumatic press, this principle is utilised to perform precise and powerful pressing operations. The function of the pneumatic cylinder ensures flexible and customisable control of the movement sequences, making them ideal for applications that require both speed and force.

Overall, pneumohydraulic drives offer a reliable solution for industrial processes that require high performance and efficiency.

How does a pneumohydraulic cylinder work?

Power by Powerpackage

The pneumohydraulic drives from TOX^® are known worldwide under the name TOX^® Powerpackage. The TOX^® Powerpackage is an energy-efficient pneumatic cylinder with an integrated, closed hydraulic system and automatic force intensifier.

The TOX^® Powerpackage product range offers press forces from 2 to 2000 kN, power strokes of up to 69 mm (longer power strokes are possible with the separate X-KT system) and total strokes of up to 400 mm. The pneumohydraulic drive shines with patented features such as the power bypass, absolute air-oil separation and a hydraulic damping system in the return stroke.

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Overview of the series

CAD data

TOX^® Powerpackage line-Q

The cost-efficient drives

Press force range: 3 kN - 283 kN
Power stroke range: 5 mm - 52 mm
Total stroke: 50 mm/ 100 mm/ 200 mm

TOX^® Powerpackage line-X

The powerful drives

Press force range: 2 kN - 1727 kN
Power stroke range: 6 mm - 69 mm
Total stroke: 50 mm/ 100 mm/ 200 mm/ 300 mm/ 400 mm

TOX^® Powerpackage X-KT

The highly flexible drives

Press force range: 2 kN - 1700 kN
Power stroke range: 1 mm - 400 mm
Total stroke: 50 mm/ 100 mm/ 150 mm/ 200 mm/ 300 mm/ 400 mm

Individual solutions

We like to develop customer-specific drive solutions.

Robot tong drives, welding and embossing cylinders as well as special versions for use in food processing and cylinders free from copper, nickel, zinc for battery production.

Advantages of pneumohydraulic drives

High power density

One of the main advantages is their high power density, which makes it possible to generate large forces in a comparatively compact design. They are also very efficient as they combine the advantages of compressed air and hydraulic fluid, resulting in precise and controlled power transmission.

Flexibility

Another advantage is their flexibility in use. They can be operated in a wide temperature range and are robust against environmental influences.

Cost-effective

In addition, pneumohydraulic drives are often cheaper to operate as they consume less energy and require less maintenance.

Longevity

They also offer high reliability and durability, which makes them ideal for use in demanding environments. Finally, users benefit from good controllability and fast response times, which leads to improved process control.

Areas of application for pneumohydraulic actuators

Pneumohydraulic drives are widely used in various industrial applications. They combine the advantages of pneumatics and hydraulics, which makes them particularly efficient and versatile.

A common area of application is the automotive industry, where they are used in presses and assembly systems.

In manufacturing technology, they are used as precise drives for machines, particularly in machining processes that require high force at high speed.

They are also used in the packaging industry to operate machines precisely.

They are also used in the aviation industry to perform complex movements with high precision.

The combination of the properties of air and liquid pressure makes it possible to develop compact and powerful systems that are of great benefit in various industrial sectors.

Differences between pneumohydraulic and purely hydraulic drives

Pneumohydraulic drives use compressed air for movement and hydraulic fluid for power transmission. This enables precise control with low energy consumption. A significant advantage is the high force that is achieved by combining both technologies.

Purely hydraulic drives, on the other hand, only use fluids to transmit power. Hydraulic systems work with a permanent and constant power transmission, which makes them usable for industrial applications, but comes with high energy consumption, noise and heat generation.

A significant difference lies in the energy consumption and the complexity of the systems. Pneumohydraulic drives are often simpler and very often more energy efficient.

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Frequently asked questions

We have answered the most frequently asked questions about the TOX^® Powerpackage for you.

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TOX® Powerpackage