Sand Blasting machine is a process of forcibly propelling a stream of abrasive substance against a surface under high pressure to smooth a rough surface, roughen a smooth surface and shape a surface or to remove (eliminate) the surface contaminants. Sand blasting is also called Abrasive blasting. There are several variants of its process, such as bead blasting, sand blasting, shot blasting and soda blasting, etc.
Abrasive blasting is a method of propelling abrasive media using compressed gas or pressurized liquid as the propellant. There are numerous generic terms for this application normally related to the abrasive material used. General terms include sand blasting, shot blasting machine, bead blasting, and soda blasting.
Dry abrasive blasting is powered by a diesel air compressor. Most applications include a pressurized vessel that contains the abrasive and meters it into the compressed air stream. Wet blasting is accomplished by injecting the abrasive into a pressurized water stream or creating a slurry of abrasive and water that is pressurized or introduced into a compressed air stream.
It is an automated blasting machine that gives surface preparation and coating applications under cover to minimize the effects nature can have on prepared steel, with minimum or no impact on the environment.
A standard blast cabinet consists of four components-
Essentially it is a closed-loop system by that an operator can blast the part and also recycle the abrasive. The operator blasts the elements (parts) from the outside of the cabinet by placing his arms in gloves attached to glove holes on the cabinet, seeing the part through a view window and, normally, turning the blast on and off using a foot pedal or treadle.
The abrasive is stored in the pressure container then sealed. It is metered into the blast pipe and conveyed by the compressed gas through the blast nozzle. It is typically used to create a surface profile when the frictional heat of dry blasting would damage the part.
Wheel Blasting: Wheel blasting machines are a high-power, high-efficiency blasting operation with recyclable abrasive. Functional wheel blasting machines propel plastic abrasive in a cryogenic container; this type of wheel blasting is usually used for deflating plastic and rubber components. The size of the wheel blast machine and the number and power of the wheels depends on the parts to be blasted and on the expected result and efficiency.
Hydro-Blasting: It is generally known as water blasting, is a popular abrasive blasting operation because it is very effective and, in most cases, will only require one operator. In this process, water is used to remove old paint, chemicals, or buildup without damaging the previous surface. This scheme is perfect for cleaning internal and external surfaces because the operator is usually able to send the stream of water in places that previously were deemed unreachable.
Blast Room: in the maximum blasting room has recycling systems ranging from manual recycling to full reclaim floors that convey the abrasive pneumatically or mechanically to a tool that cleans the abrasive prior to recycling.
Micro - Abrasive Blasting: Micro-abrasive blasting uses smaller sand blasting nozzles to provide a fine stream of abrasive accurately to either a small part of a small area on a larger part. Essentially, the area to be blasted is from about 1 mm to only a few cms at most as abrasive blasters with larger nozzles are faster for larger areas. Micro-abrasive blasting uses media with particle sizes from 10 micrometers up to about 150 micrometers and usually higher pressures than most of the larger blasters 40 psi to 150 pounds per square inch deliver sufficient energy to these small particles. However, the equipment for abrasive blasting usually consists of but is not limited to a hand-held nozzle that directs a stream of abrasive media. Therefore abrasive is mixed with air in a mixing chamber in order to transport it to the nozzle where it is subject to a high-velocity air stream that propels it towards the job.