Q69 series of continuous through the multi-function (steel) shot blasting machine is used for rust removal or removal of metal oxide, for cleaning up the large I-beam, welded steel, is a continuous operation roller device, and phase pretreatment production line in the steel. The workpiece is placed on rollers clean up, can automatically access, lined with high manganese, high chromium protective shield cleaning room. Blasting of the equipment used in the patent are our latest products with efficient energy saving, high-speed projectile, blasting a large amount of wear parts wear, long life and easy to replace and so on.