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About rotating table shot blasting machine

Types of rotating table shot blasting machines

A rotating table shot blasting machine comes in different models to cater to various needs. Here are the most popular ones:

  • (D/R)AT 2

    This is an automatic double-rotating table shot blasting machine with a deceleration motor. Dynamic and static profiling of the work pieces occurs, and visitors often notice an enhanced table start and stop effect. The table in this model has a diameter of 2400 mm.

  • (D/R)AT 3

    This model works similarly to the (D/R)AT 2 but has a single deceleration motor. Also, the table has a smaller diameter of 1200 mm.

  • It has only one blast wheel. Work pieces enter the machine through a horizontal inlet opening. The steel abrasives are thrown at high velocity onto the piece by the wheel. After blasting, the abrasives drop into a collection system.

  • D/RAT 2 Expl

    This table machine is explosion-proof. It prevents any possible explosion from occurring. So, it is safe to use in explosion-sensitive industries.

  • (D/R)AT 3 IP65

    It has an ingress protection rating of IP65. Therefore, it is dust-tight. Furthermore, water jets from any direction won't damage it. The motor and electrical parts are safe from harsh environmental conditions.

Specifications and Maintenance of Rotating Table Shot Blasting Machines

Specifications

  • Table Diameter: The diameter of the table can typically be controlled according to the workpiece dimensions.
  • Table Rotation Speed: The speed at which the blasting area is rotated, usually measured in revolutions per minute (rpm).
  • Turning Method: Turntable shot blasters usually have an electric motor to drive the rotation, or a pneumatic motor according to customer requirements.
  • Number of Blasting Guns: The number of blasting guns or nozzles in the blasting chamber, usually one to five. This includes the gun setup.
  • Blasting Gun Type: The type of blasting gun used, such as a centrifugal gun or a straight-blast gun.
  • Gun Spacing: The distance between the guns or nozzles, which affects the uniformity of blasted coverage.
  • Gun Nozzle Diameter: The diameter of the nozzle affects the size and speed of the blasting stream.
  • Shooting Medium: The kind of blasting medium utilized, including steel shots, quartz sands, etc.
  • Machine Dimensions: The overall dimensions of the machine, including length, width, height, etc.
  • Machine Weight: The weight of the machine, generally in tons.

Maintenance

  • Regular Inspection: Carry out regular inspections to check if parts such as motors, drives, and blast guns are in good condition. Check for loose parts, signs of wear, and corrosion, and deal with them promptly.
  • lubrication: Ensure proper lubrication of rotating tables and bearing blocks. Choose suitable lubricants according to the machine manual, and regularly apply them to keep the parts flexible and reduce wear.
  • Keeping Clean: Clean the machine regularly to remove dust and residual blast media. Pay special attention to cleaning the blast gun and nozzle to prevent blockages and ensure even blast flow.
  • Media Management: Control the quality and quantity of blasting media. Ensure the cleanliness and proper storage of blasting media to avoid contamination and depletion.
  • Routine Maintenance: Schedule maintenance according to machine manual instructions, including replacing wearing parts such as seals, bearings, and blast guns. Also, pay attention to the electrical parts' assuring connections and insulation are intact.
  • Safety Check: Regularly check the safety device of the machine, including the emergency stop switch and safety guard, etc., to ensure that it works correctly and be safe.

Through the above specified maintenance, the life of the rotating table shot blasting machine can be extended and its stable operation ensured. In addition, it is necessary to formulate a reasonable maintenance plan according to the actual use and working conditions of the machine to achieve proper and effective maintenance.

Scenarios of rotating table shot blasting machines

Rotating tables can be used for different kinds of industrial scenarios and operations using shot blasting machines. Here are some shot blast machine table use cases:

  • Drum/Pipe: The rotating table shot blast machine can efficiently undertake shot blasting operations centered on the establishment and removal of rust, contaminants, or corrosion on the internal and external surfaces of cylindrical workpieces. A typical example is pipelines.
  • Automobile Components: The machine plays a functional role in the auto industry – it is used for shot blasting various automobile components, such as wheel hubs, brake drums, axle housings, suspension parts, and wheels, to remove sand cores, scale, and oxides and improve bonding surfaces.
  • Profiles and Sheets: In the task of enhancing the surface quality of steel profiles and sheets, rotating table shot blasting machines are invaluable assets. They are capable of effectively removing surface impurities such as scale, rust, and soil from the workpieces, thereby significantly improving their surface finish.
  • Castings and Forgings: The treatment process of rotating table shot blasting machines holds a significant position in the foundry and forging industries. These machines are adept at removing sand residues from casting processes and oxides resulting from the forging process, thereby enhancing the quality and durability of the workpieces.
  • Tooling: Tooling equipment, including molds, requires regular maintenance and care to preserve its operational efficiency. The rotating table shot blasting machine is ideal for removing impurities, such as scale and rust, present on the surface of tooling equipment and moulds, ensuring their prolonged functionality.
  • Other Workpieces: Besides the aforementioned workpieces, rotating table shot blasting machines can also be utilized for other types of workpieces. As long as the workpieces possess surface treatment requirements and are suitable for blasting, the rotating shot blasting machine may come in handy.

Tips for choosing rotating table shot blasting machines

When choosing a rotary/turntable shot blaster, one should make sure that the machine is of proper quality, convenient to use, has good safety characteristics, is energy efficient, and most of all, cost efficient.

The quality of the blaster is highly dependent on the type of material it was built with. The blasting machine should ideally be constructed with wear-resistant steel. This protective layer has a concrete impact on the life expectancy of the device because it provides excellent corrosion and wear resistance.

Life expectancy is also impacted by the durability of the equipment. Machines that are built to last do not require frequent maintenance and repair costs. This, in turn, saves a significant amount of money that would go into cost analysis research over a Talking about cost effectiveness, it is prudent to mention that buyers should be aware of the total lifetime cost and not just the initial purchase cost.

A blasting machine can only be effective in its job if it is easy and convenient to use. Considerable thought should go into how user-friendly the equipment is, and attention should be drawn to the operating and maintenance manuals provided by the manufacturer. The machine should also come with necessary and basic safety measures so that the user does not end up in hazardous situations.

Energy efficiency of the device is also extremely important. Machines with more energy efficiency can help bring remarkable energy savings and greatly benefit the environment by reducing carbon emissions.

The afore-mentioned characteristics should be looked at critically to analyse the overall cost efficiency of the machine before actually purchasing it when the buyers are manufacturers or are going to be end users of the device.

Rotating table shot blasting machine Q & A

Q1: What is the difference between the shot blasting machine and the shot peening machine?

A1: The core difference lies in the purpose of the two processes. The aim of the shot blast machine is to clean, prepare, or finish a surface. On the other hand, the purpose of the shot peening machine is to introduce compressive stresses into the surface of the material to enhance its fatigue life.

Q2: What is the future of the shot blasting machine industry?

A2: The global shot blasting machine market size was valued at $450.2 million in 2021 and is estimated to reach $721.9 million by 2031, growing at a CAGR of 5.1% during the forecast period 2022-2031. An upward trend in the market indicates that there is still great potential in investing in this industry.

Q3: How safe is a shot blasting machine?

A3: Shot blasting is generally considered safe if the machine is operated and maintained correctly. Using appropriate personal protective equipment (PPE) and following all safety guidelines and regulations is also important.

Q4: What are some trends in the shot blasting machine industry?

A4: Horizontal blast machines are gaining popularity because of their power, efficiency, and versatility. The industry is also seeing a trend towards automation and digitization.