Open Die Forging

400+ materials

200+ employees

100+ years of experience

Southern Germany’s largest Open-Die Forge

Rosswag specializes in high-performance forged components using advanced machinery and deep expertise. Our offerings range from bars and custom-shaped rings to disks and holed disks, capable of handling weights up to four tons and sizes up to three meters with a wide range of different materials.

up to 4 t part weigth

We produce components from a few kilograms up to 4 tons.

up to 3 m part size

We produce components from a few inches up to 3 meters.

> 400 different materials

The largest material portfolio for open-die forging processes worldwide.


Technical equipment

Rosswag operates multiple hydraulic presses with 800 up to 3500 tons as well as air and drop hammers. For the wide range of different materials many furnaces are used for the different temperature levels. Heat Treatment furnaces and quenching basin with oil and water complete the holistic equipment for our forging services.

400+: Our Range of Materials

We offer the most diverse portfolio of materials for open-die forging in the global market!

Key Facts

Our Machines

3 x Hydraulic Presses

Hydraulic presses for forging use high-pressure hydraulic fluid to shape and form metal materials with precision and power.

5 x Air- and Drop Hammers

Air and drop hammers for forging utilize rapid, repeated hammer strikes powered by air pressure or gravity to shape and form metal.

5 x Manipulators

Manipulators are used to lift and precisely position heavy forged parts, enhancing safety and efficiency in the forging process.

10 x Furnaces

Furnaces for heating forgings provide the intense, controlled heat necessary to make metal pliable for shaping and forming.


Frequently Asked Questions

How does Open-Die Forging work?

Open-die forging involves deforming a piece of metal between multiple dies that do not completely enclose the material. The metal is heated to high temperatures and then hammered or pressed into the desired shape. This process can be repeated multiple times, with the workpiece being rotated and flipped to achieve the required dimensions and properties.

What are the advantages of Open-Die Forging?

The key advantages of open-die forging include:

  1. Improved Structural Integrity: The forging process refines the grain structure and improves the physical properties of the metal, offering greater strength and resistance to impact and fatigue.
  2. Versatility: Open-die forging can produce a wide range of shapes and sizes, making it ideal for custom or large-scale components.
  3. Cost Efficiency: It is often more economical for short-run productions or prototypes as it requires less tooling and preparation time.

What materials can be forged using the open-die method?

Open-die forging is versatile in terms of the materials it can process. Commonly forged materials include carbon steel, stainless steel, aluminum, titanium, and other alloys. Each material requires specific forging temperatures and processing conditions to achieve the desired properties and performance.

How does open-die forging compare to closed-die forging?

Open-die forging and closed-die forging are both effective methods, but they serve different needs. Open-die forging is best for larger, simpler shapes and allows for more significant deformation, making it suitable for unique and large parts. In contrast, closed-die forging is typically used for smaller, more complex shapes with tighter tolerances and higher volume production.

What industries commonly use open-die forged components?

Industries that require robust and durable components commonly use open-die forging. These include aerospace, oil and gas, power generation, defense, and heavy machinery. Each industry benefits from the strength, ductility, and resistance to wear and tear provided by forged parts.

How can we help you?

Do you have questions about the feasibility of a project? Then simply contact us directly!