Industrial gas springs add support to the muscular strength of the user when opening doors, hoods and covers. Standard models however, which are used for example on vehicle hoods and tailgates, are limited by the functional principle on which they are based. ACE provides industrial tandem gas springs (push type) for large and above all heavy elements, which need to be moved and joined together, as they do in this case, in the production of convertible roofs. Success in this case is achieved by synchronising an initial angle of 350° with an opening angle of 80° and a mass of 200 kg, which is accomplished at a handle radius of 850 mm!