GFU - Maschinenbau GmbH
Booth number: 4604
gfu-forming.de
About us
GFU Maschinenbau GmbH - Precision in Pipe End Forming
GFU Maschinenbau GmbH is a globally active manufacturer of special-purpose machinery that specializes exclusively in the development, optimization, and industrialization of pipe end forming processes.
Our goal is to advance the technology behind complex forming tasks so that they can be transformed into efficient, high-precision, and robust production processes. Whether as a stand-alone machine, a fully automated production line, or integrated into existing manufacturing systems.
With over 300 GFU production lines installed worldwide, we make a global contribution to modern manufacturing technology in the energy sectors, from OCTG applications to hydrogen technologies, automotive and construction.
Calibration and Reducing Technologies for OCTG & Line Pipe
GFU swaging and calibration solutions ensure maximum dimensional accuracy, optimized roundness, and reproducible quality.
Robust machine designs—such as closed O-frame structures with multiple centering clamping systems—ensure process stability in demanding OCTG and line pipe applications.
Upsetting – Material precisely where it is needed
In upsetting, pipe material is axially compressed to selectively increase wall thicknesses.
This results in weight-optimized, high-strength components with a homogeneous grain structure.
Advantages:
Near-net-shape manufacturing
Reduced material usage
Replacement of welded or multi-part solutions
High strength and process reliability
Technology for today’s and tomorrow’s energy systems
GFU technologies combine proven solutions for oil & gas and line pipe with new requirements from the hydrogen energy sector.
Especially in the field of high-pressure steel vessels, our forming processes make a significant contribution to the safe and economic implementation of the energy transition.
High-Speed End-Forming
A proprietary GFU development for rotationally symmetric components, in which the entire geometry is formed in a single die.
The process enables high forming ratios, short cycle times, and tight tolerances.
Typical applications:
Shock absorbers
Airbag gas generators
Rotor shafts
High-pressure hydrogen tanks
Other safety-critical precision components
Flexibility in every project phase
GFU implements projects as:
Manufacturing concepts
Forming proposals and simulations
Prototype manufacturing
Stand-alone machine
Complete production line
Integration into existing production facilities
All systems are modular, automated, and customizable to meet specific customer requirements.
Why GFU?
Over 30 years of experience in custom machine manufacturing
Global installation base and service network
High degree of vertical integration and engineering expertise
Precise, robust, and easy-to-maintain machines
Address
Dieselstr. 3
54634 Bitburg
Germany
E-mail: eppers.d@gfu-forming.de
Phone: +49 1609 141334
Internet: gfu-forming.de
Contact person:
Products & Services
GFU provides swager, calibration presses and upsetting presses for OCTG and Line Pipe applications. High-Speed End-Forming machines for Hydrogen strorage solutions.
Swager, Calibration Presses - Casing- , Tubing- and Line-Pipe
Upsetting Presses - Drill- and Casing-Pipe
High-Speed End-Forming - Hydrogen and High Pressure Tanks
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Swager, Calibration Presses HPseries
OCTG Premium Connections + Line Pipe + Pointing
The tube is held axially by at least two clamping jaws during forming. A guided retraction ring or mandrel is pushed into/over the tube and in this way expands/reduces the workpiece. GFU's preferred closed design of the machine housing ensures:
Durability of the forming line
Consistently high precision of the components
Good accessibility of the tools
Best concentricity due to external routing of the tools
For necessary multiple operations, we offer an optional automatic tool changer.
#GFUforming #OCTG #CalibrationPress #PipeEndForming #Swager #OilAndGas #GFUCalibrationPress #GFUHorseshoe #GFULinepipe
Upsetting Presses - Drill- and Casing-Pipes
Upsetting is based on the principle that two die segments enclose the partially heated tube and the material is then upset in the axial direction by 1 or 2 punches. Both tube and solid materials can be partially upset. Contours are possible via the tool geometry.
Robust design and guaranteed long service life time of the forming system
Consistently high reproducibility and precision of the formed parts
Easy access to tools
Fast tool change times by using of changing devices
Positioning accuracies of the forming tools in the range of 0.1 mm
Forming programs/recipes are stored in the PLC and parameters can be changed via the HMI
Positioning control of the forming tools with overlaying pressure control system
6 jaws clamping system (centric clamping independent of pipe diameter)
Automatic Tool lubrication system, programmable via HMI
Tool temperature control system
Process Data tracking available
Central machine lubrication system
Siemens S7-1500 CPU and HMI (TP Series)
Bosch Rexroth Hydraulic Power Unit
High-Speed End-Forming
Developed by GFU the High-Speed End-Forming process is based on the
spinning/flow-forming process principle. The main difference is that the tool
is not a roller which runs off a specific shape, but a pot-shaped tool in which
the entire course of the shape is incorporated. The components that can be
produced by this process must be rotationally symmetrical.
