Our gantry crane falls in two main configurations, including single girder and double girder. As you might expect, double girder gantry crane is capable of lifting and moving heavier loads and can achieve a greater lifting height and speed as well as a higher working level in contrast to single beam gantry crane. According to different leg structures, we have A frame, U frame, L- shape legs for you to choose from. To learn more, you can look through the detailed product page.