Seamless steel tubes in perfection

In a blend of the best tradition and innovation we have perfected the manufacture of our tubes. Our steel tubes meet supreme standards - true to the Mannesmann name.

Top quality in action

We supply tubes to match the most stringent demands and stress criteria in numerous applications for vehicle construction, manufacturing industries and the energy sector.

Mannesmann Logo und Mannesmann. das Rohr Schriftzug in Silber-glänzend

Seamless steel tubes from Saxony

Company

Embedded within the Mannesmann Precision Tubes Group, the Zeithain plant operated by Mannesmannröhren-Werk GmbH makes seamless hot-rolled steel tubes (hollows and tubes finished to size). These are either sent on to the cold drawing mills of the Group or are sold directly to external customers.

Our plant in Saxony is one of the most efficient producers of small-size seamless tubes in the market and also operates Europe's most state-of-the-art push bench facility.

Bird's eye view of the MRWDE Zeithain plant
Bird's eye view of the MRWDE Zeithain plant

General contact

Mannesmannröhren-Werk GmbH
Mannesmannstrasse 11
01619 Zeithain
Germany



+49 3525 79-0
info.mrw@mannesmann.com

Sales contact

Felix Harms
Key Account Manager
Mannesmann Precision Tubes
Wiesenstrasse 36
45473 Mülheim an der Ruhr
Germany

+49 208 458-1616
felix.harms@mannesmann.com

Dimensions

Hollows
Outside diameter 17.2 - ​133 mm 0.677 - ​5.236''
Wall thickness 2 - ​20 mm 0.079 - ​0.787''
Length up to 22 m up to 72.2'
Finished tubes
Outside diameter 17.2 - ​133 mm 0.677 - ​5.236''
Wall thickness 2 - ​20 mm 0.079 - ​0.787''
Length up to 22 m up to 72.2'
Other dimensions on request
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Our tubes are distributed by Mannesmann Precision Tubes. Further information about our products and the contact information for your inquiry can be found here.

The picture shows a table of the possible outside diameters and wall thicknesses of the hollows and adjusted tubes Zeithains

Detailed dimension table

Production steps for the manufacture of a hollow

Schematic representation of stacked steel ingots on an ingot yard

Storing of cast rounds in the buffer store

Schematic representation of a saw that cuts up the preliminary product

The cold-saws cut the cast rounds into billets

Illustration of pre-tubes in the rotary furnace with strand blocks leaving the furnace, entering the furnace and those being heated in the furnace.

Heating of the billets in the rotary hearth furnace

Illustration of cross rolling. You can see a strangus block being pierced and formed

The Three-Roll Piercing mill is the initial deformation

The illustration shows how a hollow block is prepared for the further steps by deforming one end

The flanging press fixes the hollow on the mandrel rod in preparation of the push process

The illustration shows the more precise shaping of the hollow blocks by deformation elements inside and outside

The second forming stage is the push bench

Illustration shows how the outer diameter of the pre-pipe is enlarged by deformation elements on the inside and outside

The detaching mill increases the diameter of the hollow

Illustration shows the separation of the dimple attachment of the pre-tube by a hot saw

The hot saws cut off the hollow head (for selected dimensions)

Illustration shows pretubes in a reheating furnace

The walking beam furnace reheats the cooled hollows.

Illustration shows how the pre-tube is reduced to its nominal diameter by stretch-reducing mill, but without inner die

In the strech-reducing mill the hollow achieves the final diameter and wall thickness without iternal tool.

Illustration shows the cutting of several pre-tubes simultaneously by a layer saw

The layer saws cut multiple tube sections in customer lenghts.

Application areas

Illustration of a car with blue highlighting of Mannesmann pipes

Automotive

  • Airbag containers
  • Drive shafts
  • Diesel injection lines
  • Cardanshafts
  • Gearshafts
  • Camshafts
  • Stabilisers
  • Ball cages
Illustration of excavator with blue highlighting of pipes from Mannesmann

Industry

  • Cylinder and pistons construction
  • Hydraulic and pneumatic lines
  • Free machining application
  • Printing machine rollers
  • Circular components for mechanical engineering
Illustration of renewable energy with blue highlighting of Mannesmann pipes

Energy

  • Tubes for apparatus and container construction
  • Boiler tubes up to 22.5m (73.9 ft) lenght for power plants
  • Linepipes
  • Heat exchanger tubes
  • Boiler and pressure vessel construction
  • Oil and gas linepipes
  • High-pressure tubes for chemical plants
  • Structural hollows for steel construction, bridge construction and crane construction

History

Steel tubes production has a long tradition in Saxony, starting in 1907 with the commissioning of the first rolling mill for the first mill for seamless tubes in Riesa. In May 1961, the groundbreakig for the new tube of the VEB Stahl- und Walzwerk Riesa took place in Zeithain.

In 1965, the first hot-rolling mill, Tube Mill III (Plug MIll), went into operation, which was decommissioned in 1990. The second hot-rolling mill , Tube Mill IV (Push Bench), was built in 1978. Mannesmannröhren-Werke Sachsen GmbH, Zeithain, was founded in 1991 as a wholly owned subsidiary of Mannesmannröhren-Werke AG, Mülheim an der Ruhr. Since this aquisition considerable investments have been made in the plant technology of the Tube Mill IV. These investments were focused mainly on modernizing computer technology to improve the process control of the equipment.

The previous piercing press in Zeithain had been replaced by the combination of a Three-Roll Piercing Elongating mill (TPE) with the existing push bench went into operation in February 2008.

1961 Groundbreaking of Tube Mill III, VEB Steel und Rolling Mill Riesa in Zeithain
1965 Commissioning of Tube Mill III (Plug Mill)
1978 Commissioning of Tube Mill IV (Push Bench)
1991 Mannesmannröhren Werke Sachsen GmbH is formed and takes over the Zeithain Tube Mill as part of Mannesmannröhren-Werke AG
1997 Mannesmannröhren Werke Sachsen GmbH merges with Mannesmann-Warmrohr GmbH; Mannesmann-Warmrohr GmbH is contributed to the Vallourec & Mannesmann Tubes joint venture
2007 Salzgitter Group takes over the Zeithain Tube Mill. Newly formed Salzgitter Mannesmann Rohr Sachsen GmbH takes over the ring manufacturing division from Mannesmannring Sachsen GmbH, part of the Salzgitter Group since 2000
2017 Rebranding of Salzgitter Mannesmann Precision GmbH to Mannesmann Precision Tubes GmbH and Salzgitter Mannesmann Rohr Sachsen GmbH to Mannesmannröhren-Werk GmbH
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