To provide a beam conveyor which has a large transportable weight and high degrees of freedom in the operation position and which is easy to form a line and maintains cleanliness to perform conveyance.

With this beam conveyor, the weight of an object to be conveyed is supported from up and down directions by rails 24 supported in a housing 18 to be in free motion attitude. Members such as rollers 13, pins are arranged at conveying beams 1, 2 to take measures for line formation and the environmental atmosphere. In order to develop the applications, carrying-in and out is carried out by the beam conveyor, and many bead conveyors are connected to be synchronously operated. Only the conveying beams 1, 2 are arranged in a cleanliness keeping space to form a small scaled conveying path with easy maintenance.