http://blaster.co.in/what-is-sandblasting-hopper/
In the Abrasive or Manual sandblasting hoppers, basically the mixture of air and sand has to impose with high speed and pressure on the surface of the metals via the mouth of the long-life tungsten carbide lined nozzle. According to the application & suitability, various types of nozzles are available in the market on the basis of their sizes and capacity. The Portable Abrasive Blaster is based on the principle of “Direct Pressure System” resulting in a high cleaning rate and more economical system by manual blasting. Generally, sandblasting machines are portable & manual ones which requires one operator with it anytime.
It could be used with remote control also known as Deadman handle. The Remote control system is used for the purpose of ON/OFF the machine, without going far from the object, It has been denoted by suffix “R”.
It has also the wide range according to the requirement of the customer which is based on their tank capacity.
For Sandblasting Machine open space is requiring and that space should be separate from other activities. The operator should wear safety wears to operate it for safety purposes like Helmet, Suit, Gum Boots, Air Breather and all.