no need girder arched sheet forming machinery, k span series It is the most professional and biggest manufacture of k span machine in China. We process all the important parts of our machine by ourselves to ensure the quality of the whole machine. Our experienced engineer is the first man in Chinawho makes k span machine and our products sell well in many countries in Southeast Asia, East Europe, Iraq, Afghanistan, United Arab Emirates, Russia, and Sudan and so on. With considerate services and high quality products, our company has won a good reputation among our customers Besides professional in k sapn machine, we also serve our customers who want to do the arch roof projects with site supervision and straff training if customers requested. Also we willhelp you to do the raw material budgetof k span project, to do the construction plan at any time when you need our help. Flagship k span machine isBH-914-610 (MIC240, according to the international standard), which I alsorecommend you. However, our engineer can design thevery modelon yourspecial requirement, for example:600-300mm,914-400mm,914-610mm,914-650mm,914-700mm,914-750mm,1000-610mm, and 1000-680mm. Wlecome you have more questions and also welcome youvisit our factory to inspect our factoryas well as the good quality of our machine. MIC240 Technical Parameter: 1. Size: 8900mm*2230mm*2300mm 2. Totel weight: 10000kg 3. Thickness of the panel: 0.6mm-1.5mm 4. Cutting material: Cr12mov 5. Main motor power: 7.5KW Bending power: 3.0KW Cutting power: 3.0KW Conical power: 1.1KW*2 6. Width of the panel: 914mm-610mm 7. Working speed: Straight sheet: 15m/min Arch sheet: 13m/min Sewing: 16m/min. 8. Max.span: 42m