Exhibitors

A technology suitable for any requirement: Graebener® pipe end beveling machine realize even the most complex seam geometries and facing operations in a cost-efficient way. Benefit from our individual CNC controlled machine concepts and achieve optimum results for external pipe diameters of up to 98 (2,490 mm) and a wall thickness of up to 80 mm. Overview Graebener® pipe end beveling machines have continuously been setting new standards in the weld seam preparation of pipe ends. While mechanical copying devices have been the technological standards for decades to endure a constant web width, we have developed an additional one-for-all technology for the CNC controlled Graebener® end beveling machine which allows you as operator to optimally process carbon steels as well as other material grades. Mechanical copying and CNC copying in one machine for all weld seam geometries, in one-side or two-side design depending on the requirement. Given the ever increasing quality requirements, common pipe end beveling processes fail when it comes to complex geometries as well as pipes with increased wall thickness. Thanks to the accurate CNC control of the tool support of your customized Graebener® machine you can now process pipes with a wall thickness of up to 80 mm and realized the most complex weld seam geometries individually and in a cost-efficient way. Smaller wall thickness and comparatively simple geometries can still be copied mechanically.

In the shipbuilding sector, panel lines are one of the key elements of the entire production. For this reason, leading shipyards from Europe, the U.S. and Asia have been placing their trust in Graebener® panel production lines for decades. With our Tailor-Welded-Plates® technology and the Graebener® plate edge milling machines we have brought the automated panel production to a new quality level. Benefit from our customized solution with state-of-the-art milling and joining technology for your existing lines as well. Overview The production of ship deck sections is a major technological challenge. The plates must be joined to form a large deck as automated, flexible and cost-efficient as possible with various plate thickness, different plate lengths and highest requirements regarding the quality of the joints. With our Graebener® plate edge milling machines and our Tailor-Welded-Plates® technology we face this challenge and turn it into a competitive edge for you. With the combination of modern milling technology and laser-hybrid welding technology your Graebener® machine increases the productivity and the quality of the weld seams and achieves more fitting accuracy of the sections for the further assembly. Elaborate straightening, clamping and tacking operations in downstream machines are no longer necessary. Your Graebener® TWP® system joins plates of different plate thickness in various combinations highly precise and automated. Our well-proven milling and joining process allows a weld seam preparation without gap for the subsequent laser-hybrid-welding process even for deck sections with a width of up to 30 meters. Due to the intelligent machine concept, a possible plate waviness is compensated, thus no longer impeding the production in any way.

An optimum welding result requires an optimum plate edge preparation. Graebener® plate edge milling machines offer an efficient and economic solution for optimum results. Benefit from our decades of know-how and realize all common seam geometries fast, exact and reliable. Overview The design principle of the Graebener® plate edge milling machine is based on decades of experience. As our customer and partner, you benefit from the comprehensive knowledge we gained when operating our own pipe mill from 1974 to 1997. From this experience we know that high accuracies in the processing of plate edges can best be ensured if the plates remain clamped throughout the entire processing length. Especially in case of large-format plates, your Graebener® plate edge milling machine will improve the economic efficiency of your plate edge processing. The primary fields of application are shipbuilding, wind tower construction, bridge construction as well as vessel and apparatus construction. However, plate rolling mills and steel service centers are among our customers as well. Compared to alternative plate edge processing methods, the advantages of the milling technology are comprehensive. We make full use of these advantages.

An optimum weld seam preparation is the basis for a high-quality weld seam. Therefore, we have developed the Graebener® circ seam milling machine. Benefit from our experience as global market leader and realize your weld seam preparation more profitable, faster and health-friendly than ever before at milling depths of up to 150 mm. Overview Up to the 1990ies we operated our own Graebener® pipe mill and prepared the weld seams of our pipes in a tedious manual process. Then, we developed the Graebener® seam milling machine and today, more than 100 customers on four continents already benefit from our market leading machine technology. Graebener® circ seam milling machines ensure the cost-efficient, reliable and safe preparation of circ seams at pipes, vessels and apparatuses. For this reason, they have been among the most popular seam milling machines for the preparation of seams of extremely narrow welding gaps for years. Actual usability studies give proof of cost benefits of more than 50 percent. Your Graebener® machine will save you time and money since the circ seam milling machine is also suitable for a quick and reliable seam repair. Benefit from our individual concepts and numerous advantages in comparison to conventional gouging or grinding methods.

An optimum weld seam preparation is the basis for a high-quality weld seam. Therefore, we have developed the Graebener® long seam milling machine. Benefit from our experience as global market leader and realize your weld seam preparation more profitable, faster and health-friendly than ever before at milling depths of up to 165 mm. Overview Up to the 1990ies we operated our own Graebener® pipe mill and prepared the weld seams of our pipes in a tedious manual process. Then, we developed the Graebener® seam milling machine and today, more than 100 customers on four continents already benefit from our market leading machine technology. Graebener® long seam milling machines ensure the cost-efficient, reliable and safe preparation of longitudinal seams at pipes, vessels and apparatuses. For this reason, they have been among the most popular seam milling machines for the preparation of seams of extremely narrow welding gaps for years. Actual usability studies give proof of cost benefits of more than 50 percent. Your Graebener® machine will save you time and money. Benefit from our individual concepts and numerous advantages in comparison to conventional gouging or grinding methods.

For an optimum weld seam preparation at shipbuilding profiles we have developed the Graebener® profile milling machines. These machines are suited for all common types of (shipbuilding) steels and can be used for various profile shapes in a flexible and cost-efficient way for example bulb profiles, T-profiles, angle steel and flats. Benefit from our customized solutions. Overview When manufacturing large ship deck section so-called stiffener profiles are placed and welded onto the sections which serve for stabilizing the panels. To join the stiffener profiles by means of the laser or laser-hybrid welding process, the profile edges need to be prepared first. For this purpose, we have developed the Graebener® profile milling machines which reliably process the profile edge of the plates delivered from the rolling machine with a certain round shape.

Highly flexible, reliable and economic: Graebener® pipe bending presses provide you with the decisive competitive edge in the production of LSAW pipe between 16 and 64 (406 - 1,625 mm). Benefit from our experience and the special characteristics of the Graebener® technology especially when it comes to increased wall thickness and special requirements. Be different than the standard. Overview Graebener® pipe bending presses ensure a highly flexible and economic production of LSAW pipes and special pipes even with increased wall thickness and small diameters. The special feature of our internationally proven technology is the increased stroke of the bending sword. The stroke is selected in a way that the bending sword can be pulled out of the pipe completely. After the bending process the remaining gap of the open seam pipe can be pushed together by means of the bending sword. This reduces the gap significantly and an additional pipe closing press no longer is necessary. This advantage is especially important in case of increased wall thickness and materials with increased springback so that the open seam pipes can be tacked continuously in a downstream MAG Tack welding process using our Graebener® continuous root tacking machine. Further, the sword and the tool change no longer necessary: the bending sword and the corresponding lower tools are suitable for universal use for various pipe diameters. In addition to this, you as operator can benefit from our electronic radius measurement system RadiiPro®. By means of this, the operator no longer needs to carry out the radius check manually using a template but can do so on the screen of the operating desk convenient, safe and precise. The loss of time caused by manual radius measurement is eliminated. Our solutions are ideally suited for a wide range of pipe dimensions Pipe length: up to 18 m External pipe diameter: 16 - 64 (406 - 1,625 mm) Wall thickness: up to 75 mm

Whether for pipelines, large vessels or wind towers: Graebener® offers customized solutions for optimum pre-bending results for almost any types of applications. Graebener® pre-bending presses reduce the straight plate ends of bent pipes already prior to the bending process. They are ideally suitable for large wall thicknesses of up to 150 mm and are also used reliably for the production of cylindric pipes as well as conical shell sections. Overview In the production of LSAW pipes and pipe sections, the Graebener® pre-bending presses carry out the first bending step of the steel plates. The plate edges are pre-bent prior to the downstream bending process so that the straight plate ends of bent pipes are reduced to a minimum. Based on our many years of experience as former manufacturer of LSAW pipes we offer customized pre-bending solutions as custom machine builder. Depending on the type of application and your individual requirements we use two different methods of pre-bending: in case of plates with a wall thickness of 150 mm both plate edges are pre-bent subsequently over the entire plate width. In case of plates with a smaller wall thickness of up to 75 mm a step-by-step process is used where both plate sides are pre-bent simultaneously in several steps throughout a length of up to 20 meters. Our solutions are ideally suited for a wide range of plate dimensions. Plate width: up to 4.8 m Wall thickness: up to 150 mm

3-Roll Bending Machines Graebener® 3-roll bending machines are based on more than 40 years of experience in bending technology. Benefit from our individual concepts especially for shells with very large wall thickness and increased length. Irrespective whether to be formed conically or cylindrically: We offer economic solutions customized to your requirements securing the decisive edge for your company. Whether for vessel construction or the production of line pipes: Graebener® 3-roll bending machines work fast and reliably. They stand for optimum bending results customized to the individual demands of your market. Especially concerning the production of vessel shells and cones with very large wall thickness and increased length, the 3-roll bending machine is the most economic solution up to today. Our experience as manufacturer of economic roll bending machines goes back more than 40 years. Since then, we have continuously been enhancing our individual solutions following the ever increasing marked requirements. Graebener® roll bending machines can also be used reliably for the bending of conical pipe sections or the straightening of plates. 4-Roll Bending Machines Graebener® 4-roll bending machines are based on more than 40 years of experience in bending technology. Benefit from our individual concepts for the most sophisticated bending requirements with a continuously high production output irrespective of whether the plates are to be formed conically or cylindrically. We offer economic solutions customized to your requirements which will set you apart from the standard. More than standard: Graebener® 4-roll bending machines differentiate from the standard when it comes to the production of large vessels, wind towers and monopiles with increased wall thickness. We have specialized on types of applications which require a continuously high production output from the machines even at a wall thickness of up to 200 mm. Corresponding to this, the Graebener® roll bending machines have a robust and long-lasting design. This way and in contrast to the standard, we can ensure that you as operator can ideally bend the maximum wall thickness agreed upon over the entire plate width fast, reliable and economically. Our solutions are based on more than 40 years of experience as manufacturer of 3- and 4-roll bending machines. These machines are just as individual as the challenges of our customers worldwide. One example among many others is the patented Graebener® supporting yoke which can be retrofitted for all 4-roll bending machines. Thanks to this technology you as operator can benefit from a considerably increased pre-bending performance, without having to exchange the rolls. Thus, straight ends can be reduced to a minimum. An optional supporting beam facilitates the plate handling and supports during the bending of sections with a diameter of up to 12 m.

An optimum tacking lay requires an optimum preparation of the open seam pipes. Therefore, we have developed the Graebener® continuous root tacking machine for the production of LSAW pipes. This machine ensures an optimum tacking process and provides an operator-friendly machine control. Benefit from our individual solutions for pipe diameters up to 84 (2,134 mm). Overview During the production of large LSAW pipes a gap remains between the longitudinal edges of the bent plate. Using your Graebener® continuous root tacking machine you can close this gap accurately by pushing together the longitudinal edges. This way, the tacking lay can be optimally introduced to the open seam pipe in a subsequent process. Graebener® continuous root tacking machines are ideally suited for pipe diameters up to 84 (2,134 mm) at a pipe length of up to 18 meters. The pipe is passed through the machine in a continuous process being guiding by pressure rolls in all four directions. The top rolls are located in a roller cage and can be adjusted like the lateral rolls for a precise guidance of the open seam pipe. Further, during the entire process, the welding gap is scanned by means of a 2D laser scanner. This way we guarantee an ideal positioning of the welding head to the welding gap and thus a constant tacking lay as an optimum basis for the subsequent submerged arc welding processes. Our solutions are ideally suited for a wide range of pipe dimensions. Pipe length: up to 18 m External pipe diameter: up to 84 (2,134 mm) Wall thickness: up to 75 mm