Graebener forces Roll bending machine 1

Graebener forces 4-Roll bending machine 
Moving Forces
4-roll bending machines for considerable and an opti- Due to the small number of the series production of thick mum straightness of the pipe exchange rolls, standstill walled shells for offshore shells to be formed is ensured times because of roll chan- wind towers, piles, - for small and large material ges can be avoided which, mooring posts, thicknesses. in turn, increases the turnout large vessels and of the machine and its tanks. efficiency. The Graebener 4 roll bending machine with supporting yoke is equipped with relatively slim rolls with hardly any crowning. The number of exchange rolls necessary is decreased

Moving Forces With innovative future and customer-oriented products, the Graebener Group has sustained an excellent reputation worldwide in the fields of SAW pipe manufacturers, wind tower production, automotive manu- facturers including their component suppliers as well as ship- yards, and established itself as original equipment manufactu- rer of the market leaders. The Function of the supporting yoke Supporting yoke in operating position The supporting yoke clamps the top and bottom rolls and compensates the deflection by applying counter pressure to the rolls. Due to the supporting yoke function, it is finally possible to raise the pre-bending capacity of a roll to the same level as the round bending capacity. Flame cutting of the straight edges, which has increased pre-bending capacity been customary so far, no  bending capacity longer is necessary, thus saving working time and Supporting yoke in retracted position material costs while at the same time increasing the economic efficiency. If the supporting yoke is not needed, it can be fully sunk in the foundation or even dismantled in a very short period of time.  bending as with the standard 4-roll bending machine 3-Roll Bending Machines Line Pipe Today, a manufacturing length of m is the most common requirement for the production of line pipes. For the production of pipeline pipes, the Graebener 3-roll bending machine is equip- ped with individually adjustable support rollers. In addition to this, Graebener Maschinentechnik also offers various exchange rolls. The 3-roll bending machine

due to its speed and easy handling also is an economic production solution for conven- tional API pipes with small and medium wall thicknesses. Pipe Forming Presses The Graebener pipe forming press is used for offshore pipes, jackets, and special pipes with increased yield points and large wall thickness/pipe diameter ratio since these technical requirements exceed the physi- cal limits of a traditional roll bending machine. Graebener Maschinentechnik is the expert for the bending of plates. Just ask us! We will solve your individual bending task and will find the most economic solution. 3-Roll Bending Machines The 3-roll bending machine still is Each lateral roll and the upper High asymmetric forces during the most economic solution for roll can be adjusted. Therefore, extreme conical bending the production of special shells an economic production of require a high stiffness in the in the vessel construction and for cones is possible without dama- tilting bearing column. Each the production of cones. ge to the longitudinal plate machine is designed using FEA edges. calculations. MASCHINENTECHNIK