Steel cylinder internal shot blast machine is special designed and manufactured as continuous machine for steel cylinder internal blasting. This machine can blast 2 or 4 cylinder one time, improved the work efficiency. Work process: Put steel cylinder on loading rack---Auto loading device take the cylinder to overturn frame---Pneumatic lifting device take the cylinder to chamber shell---Blast gun into the internal of cylinder---Cylinder rotation---Blasting---Air blower off the dust---Unloading