Besides the standard H-Brake series and the H-Brake Heavy Duty series, it is also possible to build a number of press brakes next to each other in tandem, allowing synchronous bending by multiple machines. These machines do not have to be identical. It means that very long products can be bent if more than one machine bends at the same time. It is also possible to bend shorter products using double capacity, the two press brakes then operate separately. Versions and machine options depend on the machine type.