The clean room column cantilever crane is a column crane used in the clean room. The working strength of the clean cantilever crane is light. The crane is composed of a column, a rotary arm rotary drive device and an electric hoist. The lower end of the column is fixed on the concrete foundation by anchor bolts, and the cantilever rotation is driven by a cycloidal pinwheel reduction device. The electric hoist is in The cantilever I-beam runs in a straight line left and right, and lifts heavy objects. The jib of the crane is a hollow steel structure, which is light in weight, large in span, large in lifting capacity, economical and durable. The built-in running mechanism adopts special engineering plastic running wheels with rolling bearings, which has low friction and light travel; small structure size is especially beneficial to improve the hook stroke. The clean jib crane is installed in the dust-free workshop, which can ensure the cleanliness of the dust-free workshop and meet the requirements of the production workshop!