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Different types of shot blasting machines in India are designed for specific applications. Here is the list of some common types of shot blasting machines.
Floor mounted cabinet:
A floor mounted cabinet shot blasting machine is typically used for small parts. The operators put the workpieces into the cabinet through the side door or window for blasting. As the workpieces are blasted, the dust is extracted, leaving the cabinet floor clean.
Rubber belt:
In this type of shot blasting machine, the workpieces are loaded on a continuous rubber belt. The blasting wheels at the top and bottom of the conveyor then blast the parts from multiple angles. The blasted workpieces come out on the other side of the blasting wheel. A rubber belt shot blasting machine is ideal for non-metallic or delicate workpieces that require uniform blasting over their surfaces.
Drag-and-Fall:
A Drag-and-Fall shot blasting machine uses a drag chain conveyor to move and drop workpieces into the blasting wheel area. After the blasting process, they are dragged back up and fall again, hence the name. This type of machine is suitable for small workpieces that are better blasted when they are in clusters.
Airless:
An airless shot blasting machine doesn't use compressed air for propulsion. Instead, it relies on the force of gravity to propel the workpieces from the hopper into the blasting area where they are blasted, inspected, and recycled. This kind of machine is appropriate for smaller workpieces that are better blasted when in clusters like the drag-and-fall variety.
Pressure blasting:
Normally, pressure blasting machines use air-compressed pressure pipes to push a mixture of abrasives and air into a blasting nozzle. They are suitable for parts that require deep surface cleaning or high-etching impacts. A pressure blasting machine can also have a continuous or batch blasting process.
Automatic Tumble basket:
This shot blasting machine has a cabinet with a spherical basket inside. The workpieces are loaded into the basket, and the blasting process begins. While the blasting wheels rotate, the basket tumbles, exposing all parts of the workpieces to the blasting wheels. An automatic tumble basket shot blasting machine is suitable for small workpieces that need uniform surface preparation.
Rotary table:
A rotary table shot blasting machine has a horizontal or vertical turntable that holds the workpieces in position for blasting. The blasting nozzles rotate around the table, uniformly blasting the surfaces of the workpieces. This type of machine is ideal for medium to large workpieces that require precise and localized blasting.
Wet blasting:
A wet blasting shot blasting machine combines blasting and chemical cleaning to improve surface quality. It also helps to reduce dust and heat generation, making it a safer and more environmentally friendly option.
The specifications of shot blasting machines will differ depending on the types of shot blasting machines available in the market. The specifications will also change depending on the industrial applications the machines are being used for. Here are some general specifications in the market:
Like every other machine, the shot blasting machine also requires maintenance and care for longevity and optimal performance. Regular maintenance ensures the machine is in good condition and helps prevent exposure to hazardous air contaminants. Here are some maintenance tips for the blasting machine:
A lot of industries use shot blasting machines. The car industry uses it to clean and strengthen car parts. The steel industry also uses it to make steel parts stronger. Big steel parts get stronger when they are blasted with steel shots. This helps them last longer.
The aerospace industry uses shot blasting to take off extra metal from airplane parts. It helps make the parts of the right shape and lighter. Some places use shot blasting machines to clean old bricks and stones. This is called brick restoration. The machine helps remove dirt and makes old bricks look good again.
Jewelry makers use small shot blasting machines to polish jewelry pieces. The machine helps make the jewelry shiny and smooth. Some furniture makers use the machine to give wood a distressed look. This makes the furniture look old and interesting.
Before painting or coating a metal part, most manufacturers use the shot blasting machine to clean the metal. It takes away rust and dirt and helps the paint stick better. Gunite machines are machines that spray concrete on surfaces using shot blasting technology. This kind of machine is mostly used in the construction of swimming pools and tunnels.
Packaging industries employ the use of shot blasting machines to make their packs more durable. Packaging materials like plastics and papers are blasted with steel shots to strengthen them before they are fashioned into packs.
The overall buying trend of shot blasting machines shows that most buyers are very interested in the prices of machines. To maximize business returns, buyers are advised to conduct thorough research on how to choose shot blasting machines based on the prices. Here are a few facts to consider when choosing shot blasting machines according to their prices.
Q1 What factors affect the shot blasting machine price in India?
A1 The price of the shot blasting machine in India will vary according to different machine types, specifications and capacities. In addition to this, installation, blasting media, maintenance and machine care will also have an effect on the price.
Q2 How does the shot blasting machine work?
A2 The machine works by removing dirt and rust from the surface of metal objects through the high-velocity impact of tiny metal balls or abrasives. Once the object is placed in the chamber and the door is tightly closed, an air compressor in the machine helps the dust collection bag filter the air until it is thunderous enough to start the process of firing the abrasives at the object from the nozzles. After the object is cleaned, the air pressure is lowered, and the abrasive media is collected at the bottom to be recycled and used again.
Q3 What types of materials can be used as blasting media in a shot blasting machine?
A3 Several materials can be used, such as steel shots, steel grits, steel wool, stainless steel shots, cast iron grits, aluminum oxide, silicon carbide, glass beads, crushed walnut shells, corn cob media, sand, sandstone, and slag. Amongst these, steel shots and grits are the most common ones used in the machine.
Q4 What safety precautions should be taken when using a shot blasting machine?
A4 Using a shot blasting machine without taking safety precautions can be fatal. Therefore, it is essential to wear a blasting helmet with a full-face shield, earmuffs or earmold-recordable plugs, a filter self-contained breathing apparatus, blasting rooms, an indicative sign and a blast cabinet. It is also necessary for people not to stand in the blaster's path.