• Inner profile in blind holes

    By rotary swaging, it is possible to produce inner profiles, such as square, hexagon or involute in blind holes.

  • Conical tube for medical

    Produced by rotary swaging conical tube

    • Pipe 25x1
    • 1.4301
    • DIN 2391

The Advantages of Rotary Swaging

Reduced Processing Time

The processing time for swaged parts is considerably shorter than that for machine cutting.

Better Product Quality

Rotary swaging improves the surface finish (roughness) and tensile strength and ensures close tolerances. This will substantially improve the physical properties of the material in terms of compression, tension, bending and torsion.

Significant Material Savings

Contrary to chip removal methods, the material is formed into shape. This means considerably better use of materials. Costs for collecting, handling and disposal of chips are saved.

Reduced Set-up Times

Generally dies are changed within five minutes per station. Hydraulic feeds and additional movments are continuously variable and can be optimised for each workpiece.

Efficiency through automatic Operation

Depending on the shape of the workpiece, a pass-through method is used (load from front - unload from rear), or in the case of one-side cross-section reduction an in-line transfer system is applied. Small workpieces are formed on our rotary transfer machines. Every machine includes some stock of blanks (wire straightening and cutting machines, tube and bar stocking with vibration feeder). Multi-station machines can be designed with either in-line or rotary transfer. These machines can be equipped with additional machining stations (turning, milling, drilling) and forming stations (production of outside splines, bending, thread forming, flaring, etc.).

Fewer Production Steps

The external and internal shapes are finished in a single step if the workpiece is formed over a mandrel. Non-round internal forms, for example splines, can be easily produced using a profiled mandrel. Furthermore, tapers, reductions and stretching can be performed simultaneously. Internal helixes can be worked in without effort.

No Temperature Restrictions

Rotary swaging machines can form both steel and non-ferrous material by hot or cold working methods. There are no temperature limitations.

Favourable Grain Flow

The chipless reduction of the cross section along with the corresponding material forming has a positive effect upon the grain flow of the metal.

No Restriction in terms of Materials

All metallic materials with sufficient ductility can be formed by swaging. Swaging steel, steel alloys, stainless steel, aluminium and other non-ferrous metals can be easily processed.

No Preparation of the Surface

Rotary swaging does not require any specific surface treatment like phosphating, soaping etc.

Little Hardening

Due to the oscillating forming in many small process steps, there is considerably less material hardening depending on the amount of forming compared to other forming processes.

Green Technology

Unlike most other shaping methods, workpieces do not require a layer of lubricant medium. The coolant, if necessary, is located in a closed cycle.

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Rotary Swaging

Rotary swaging, also formerly known as swaging, is a process for precision forming of tubes, bars and other cylindrical workpieces.

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The Manufacturing Process

By infeed swaging, the workpiece is fed axially through the oscillating dies at a constant rate of speed. Most of the forming energy is concentrated in the tapered section of the dies. The swaging head is equipped with calibration shims between the strikes and dies.

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