Producing M20 Bolts Directly from Coiled Wire
With the new BM 12 bolt-making machine, AMBA increases the range of products covered by its All-in-One series of machines to include wire gages of up to 18 mm (~ 0.7″) diameter. It is the most powerful of all machines ever built by Amba and, due to the high upsetting forces involved, the first to use inductive heating for the forming of the bolt head.
The first machine of the new series will be used to produce fastening elements between 160 and 1500 mm (~ 6.3″ and 59″) long with diameters of up to 18 mm (~ 0.7″) directly from the coiled wire. The forming of the large-volume bolt heads requires the application of very high forces. Therefore, Amba has for the first time integrated an inductive heating system for hot forming into one of its machines.