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Hydraulic Straightening Press

Hydraulic Straightening Press

Robust and tried and tested in hard use over decades

Wherever beam profiles, plates or welded structures have to be straightened, bent or pre-tensioned (cambered), the STIERLI straightening press comes into its own. The machines have a very robust design and have been successfully demonstrating their efficiency and consistently reliable operation in metal and steel construction companies, vehicle construction and general machine building  throughout the world for decades. The straightening presses can be used to straighten quickly, precisely and reliably. We offer various straightening solutions from small manual straightening machines to large, automated straightening systems.








For the CNC controlled straightening presses the new controlled straightening mode will be available soon.....!


Discover the numerous applications of Stierli straightening and bending machine for yourself

  • Larger and wider working table
    The working area has generous dimensions, which means that larger bending parts can be positioned securely.

  • Long cylinder stroke with large insertion width
    When it comes to aligning welded structures or using special tools, having sufficiently large stroke and insertion width is a big advantage.

  • Robust machine design
    The rigid, robust design of the machine guarantees precise working with excellent long-term accuracy.

  • High repeat accuracy
    The combination of a very rigid machine design, precise hydraulics and the use of high-quality control components results in high repeat accuracy.

  • Very strong cylinder guiding system
    The very strong cylinder design means that open guides are not required. The entirely enclosed guide system offers many advantages that help to maintain a long service life and long-term accuracy:
    - The guide system is protected from wear (in contrast to open guides) 
    - No additional lubrication required, no need for servicing. 
    - Our guide concept allows the working table to be completely enclosed (see next point)

  • Precise, enclosed working table
    The mechanically finished machine table provides a flat, clean surface. It is completely enclosed and does not require any openings for additional guides. As a result, small bending parts do not become jammed and scale cannot enter the guide system.

  • Movable with pallet lift truck or crane
    If necessary, the Stierli bending machine can be moved easily to wherever it is required.

  • Little space required
    The compact design means that the Stierli bending machine can be used anywhere in the workshop.

  • Compact, flexible and robust quality tools
    Stierli-Bieger offers tools which, on the one hand, allow fine machining with small leg lengths, small U, L or Z bending dimensions. On the other hand, heavy-duty, strong bending tools are available for heavy bending machining.

  • Quick-change tool system
    Changing tools takes a matter of seconds.

  • Universal application
    Numerous tools are available, offering an enormous production potential. 

  • High bending output (up to 600 bends/hour)
    In many cases, a Stierli bending machine is more cost-effective 

  • Technical advantages and cost benefits over vertical press brakes.
    The Stierli bending machine often has its nose ahead. More cost-effective, faster and more compact production is just one of the many arguments in favour of a Stierli bending machine. Find out more here.

  • Cost-effective purchase in terms of uses and service life
    The Stierli bending machine is mainly used as a production machine with outstanding cost effectiveness. The long service life of a Stierli bending machine increases the cost effectiveness of this investment further.

    However, there are also some companies that use the Stierli bending machine to make prototypes or small series, or for occasional uses. Such companies appreciate the constant availability of the Stierli bending and straightening machine, as they do not have to depend on external production service providers and thus have greater flexibility, enabling them to offer services and supply products more quickly. 

  • Easy loading of the workpieces
    The open design with large insertion width allows easy loading and parts handling. For large, heavy or long-sided parts, crane loading is an option.

  • User-friendly control.
    Our controls are designed in such a way that the operator can learn how to use them very quickly. 

    The manual control system is very popular and has been tried and tested in deployment over decades. The control system can be picked up in just a few minutes. The manual control system allows very precise working with its fine stroke setting.

    The modern, powerful CNC control system has a clearly designed multiple line display. Graphical symbols support and facilitate the operating process.


Efficiently and reliably straightening with Stierli straightening press

Wherever beam profiles, plates or welded structures have to be straightened, bent or pre-tensioned (cambered), the STIERLI straightening press comes into its own. The bending presses can be used to straighten quickly, precisely and reliably. We offer various straightening solutions from small manual straightening machines to large, automated straightening systems.



Combined straightening- and bending press from 12 up to 130 tons:

Stierli-Bieger has been an indispensable help to metal workshops and metal construction companies for decades. As a combined straightening and bending machine, the Stierli machine reliably carries out the straightening and bending work required. Complex bending by hand is no longer required. Unlike straightening by flame, straightening is fast, controlled and efficient. A wide range of tools, such as bending tools, straightening tools, pipe bending and special tools, can be set up in an instant. The Stierli bending machine does not take up much space and, thanks to its mobile design, it can be positioned wherever it is required.In many countries, the STIERLI BENDING MACHINE is regarded as a standard machine and is a MUST in any good workshop.

Horizontal straightening press for:

  • Profiles as U-Profi, T-Profi, L-Profi, H-Profi, Z-Profil, I-Profil etc...
  • Welded parts (weldment) straightening
  • Welded assembly and constructions straightening
  • Beam and steel profile cambering (pretension)
  • Tube and pipe straightening
  • Round bar straightening
  • Straightening after flame or plasma cutting (flame-cut parts, blanks, plates).


Straightening press from 130 to - 880 to

The hydraulic horizontal press with 130 / 220 / 330 / 440 / 600 and 880 tons can be relied upon to carry out all bending and straightening tasks in heavy steel construction, vehicle construction and steel service centres. The straightening and bending process can be carried out quickly and precisely. The operator is assisted by the straightforward manual control system with fine stroke adjustment. The robust and heavy design of this bending and straightening machine guarantees precise straightening results. The open design enables optimal part handling and loading of the machine using a factory crane or powered roller conveyor.


Universal use of the straightening press and cambering machine in steel construction:

  • Cambering (pre-tensioning, cambering) of steel beams (camber machine)
  • Straightening and bending steel beams
  • Straightening & Bending steel profiles (L profiles, T profiles, I profiles, Z profiles, U profiles, rail profiles, special profiles)
  • Straightening of welded parts and welded structures
  • Straightening of steel plates and flame-cut parts 
  • Heavy form bending work (work with heavy v-blocks or dies)
  • Bending and straightening of very large pipes

Their versatility makes these machines an indispensable aid in steel construction companies and increases cost-effectiveness and process reliability.

Double straightening machine

If long or heavy parts have to be turned for straightening, handling is often difficult and time-consuming. We have developed a straightening solution that can be used to straighen on 2 sides without turning the bending part.

  • Double dressing bar with manual adjustable abutments. (with 1 cylinder)
  • Double dressing bar with electro-mecanical adjustement of abutments (with 1 Cylinder)
  • Double straightening press(double-sided straightening machine with two cylinder)

Tilt-and-turn device and Rotator for material handling:

Heavy workpieces can be turned or rotated without a crane using a traditional tilt-and-turn device or our turning device Rotator. We have developed solutions in which these devices are positioned in front of and behind the straightening press.


Special machines for steel straightening

We have been making bending and straightening machines since 1936. Through our many years of experience and our own design department, we have the expertise required to solve your special bending and straightening tasks. 

Special applications such as double straightening machines and torsion straightening are just some of the numerous projects that we have been able to deliver for our customers.

Set us a challenge!


Stierli-Bieger can straighten almost anything....!

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