Used Sandblasting and shotblasting machines for the surface treatment of hot forged parts in brass, aluminium and steel. Any used sand blasting machine for sale is available as is or fully overhauled and refurbished.

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What Is Shot Blasting Machine?

A shot blasting machine is a surface preparation equipment in which the steel grits/steel shots are accelerated and thrown on the surface of a material object at high speed by means of blasting turbines. In the 1930s, American companies made the world’s first shot-blasting machine. The production of shot blasting equipment in China began in the 1950s and was largely based on Soviet technology.

What is Shot Blasting Machine Used For?

Wheel blast machines can also be used to remove burrs, diaphragms, and rust that may affect the integrity, appearance, or definition of an object’s parts. The machine can also target a partially coated surface to remove surface contaminants and provide a surface profile that increases the coating’s adhesion to the surface for the purpose of shot-blasting the workpiece. A shot peening machine differs from a wheel blasting machine in that it is used to reduce the fatigue life of a part by increasing different surface stresses, increasing the strength of a part, or preventing micromotion. Shot blasting machines are primarily used to treat the surface of steel products in large quantities during the steel production process. The use of a shot blasting machine can effectively remove burrs on the surface of steel products, as well as some large-scale rust, in the use of shot blasting machines, if not mastering the technology, is likely to cause the integrity of the surface of steel products, the light will cause surface abrasions, and serious will cause a serious poor appearance, affecting the product image.

For steel production, a shot blasting machine is inevitable equipment, and the use of a shot blasting machine for steel sand as well as steel shot surface treatment, is also an essential process, as the removal of steel sand, steel shot surface stains, rust, and a necessary procedure to check the integrity of the product surface, is essential.

Functions of Shot Blasting Machine

Can remove the cast steel, cast iron surface of the oxide skin or sticky sand, the surface of the casting to play a role in cleaning, but also the quality of the castings for inspection of a necessary step, the large turbine casing to go in front of the line after shot blasting to detect injuries, so as to ensure reliable results. Hook-type blast machine is divided into single-hook and double-hook, hook-type blast machines by two hook-loading workpieces alternately into the blast cleaning room. The shot blast machine is used to throw 0.2 to 0.8 pellets to the surface of the workpiece, making the surface of the workpiece to a certain roughness, making the workpiece beautiful, or changing the compressive stress of the workpiece to improve the life of the workpiece. For the castings, shot blasting is the necessary process to discover the existence of the surface of the skin, the skin of the pores, and other defects, through shot blasting can ensure that the casting has a high quality.

In the modern theory of the strength of metals, as long as the density of the internal dislocation of the metal can be increased, the strength of the metal can be increased, and the use of a blasting machine blast to enhance the dislocation of the structure, which can help to improve the strength of the metal, this way is very effective for those who can not use the phase change of the hardened metal.

The shot-blasting can form compressive stress on the surface of the casting, which can make the castings of tensile strength, corrosion resistance, and fatigue strength have been enhanced, but also to correct those distorted thin-walled castings, can replace the ordinary hot and cold forming process, on large thin-walled castings to process, to avoid those residual tensile stress to obtain useful compressive stress.

Types of Shot Blasting Machines

• Sand blasting machine
  • Sandblasting machine uses abrasive and water, the benefit is dustless and mobile, suited for small, medium, and large size of all kind of material and shape, and manual with low capacity.
• Tumble shot blasting machine with rubber conveyor
  • Shot blasting machine with rubber belt conveyor for treatment of casting pieces, suitable for the tumbling process.
• Spinner-Hanger type shot blasting machine
  • Spinner-hanger type shot blasting machine with single or double hooks, manual loading either individually or in batches.
• Monorail-continuous-hanger type shot blasting machine with carousel hooks system
  • The monorail-hanger type with more automatic and complex solutions than the spinner-hanger type shot blasting machine, which is equipped with an overhead handling system controlled by a PLC system. Suitable for high-capacity production and cooperation with paint or coating lines.
• Pass-through tunnel-type shot-blasting machine with double-hooks
  • The pass-through type shot blasting operation by a hanging system with double hooks, to move back and forth in the overhead rail. Suitable for cleaning medium to large-size products, especially of length.
• Rotary table type shot blasting machine
  • The shot wheel flows from the top, so exposed all visible one-side surfaces on the rotate table can be cleaned, suitable for small and no-tumbling castings.
• Rolling drum shot blasting machine
  • Shot blasting machine with Magness-Chrome reinforced protective liner inside of blast-chamber, treatment of small-size, batch casting pieces, suitable for tumbling process.