LX single girder underslung crane also known as single beam under running crane or suspension crane, from the steel plate and I-beam welded into the main beam, end beams, 电动葫芦, and electric car composition, hanging in the upper part of the plant on the I-beam track, cantilever length of 0.5 ~ 1m, the electric hoist along the main beam I-beam under the edge of the flange to complete the lifting of the goods, with a lightweight structure, easy to install and maintain and other characteristics. Its structure is compact, easy to transport, installation, simple and flexible operation, is a common small and light lifting equipment, commonly used in equipment maintenance.