Aluminum shot (also known as aluminum granules or aluminum grit) is a metal abrasive product refined from high-purity aluminum ingots through processes such as wire drawing, precision cutting, passivation grinding, etc. Bairentong uses pure aluminum and aluminum-magnesium alloys as raw materials. The product has a bright appearance, uniform particle size, and features low specific gravity, low hardness, and non-damaging properties to the workpiece substrate.
Aluminum shot is suitable for surface treatment of non-ferrous metal castings such as aluminum, zinc, and copper, as well as thin-walled workpieces. After blasting, the workpiece surface is bright, clean, and free of damage marks, achieving an ideal whitening and matte finish. The product is widely used in industries such as automotive parts, precision castings, hardware tools, and medical devices, making it the ideal abrasive choice for treating the surfaces of soft metals and precision workpieces.
Core Advantages of the Product
1. High Purity, No Workpiece Contamination
Bairtong aluminum shot is directly processed from high-purity aluminum ingots, with no other metal components mixed in during the production process, resulting in a pure and stable chemical composition. It is particularly suitable for applications requiring extremely high purity, such as LED semiconductors and electronic evaporation.
2. Low Hardness, No Damage to the Workpiece Substrate
Aluminum shot typically has a hardness of HV35-125. Its gentle nature allows it to remove burrs and oxide scale without damaging the workpiece substrate, maintaining the original dimensional accuracy.
3. Excellent Whitening Effect
The unique feature of aluminum shot is its whitening function. Aluminum castings, copper castings, zinc castings, and other workpieces treated with aluminum shot exhibit a uniform, bright metallic color, achieving a whitening matte effect. Aluminum shot can also be mixed with stainless steel shot in a certain proportion to further enhance the whiteness of the workpiece surface.
4. Lightweight, Low Rebound Loss
The specific gravity of aluminum shot is approximately 2.7 g/cm³, about 1/3 that of steel shot. Lighter weight means:
Less equipment wear: Extended service life of vulnerable parts such as shot blasting machine blades and liners
Low rebound loss: Less kinetic energy loss and higher energy utilization during shot blasting
Low operating noise: Significantly lower impact noise than heavy abrasives
5. Complete specifications and selectable shapes
Baitong aluminum shot offers both cylindrical cut shot and ground round shot, with particle sizes ranging from 0.6mm to 3.0mm and hardness (soft and hard states) to meet the needs of different working conditions.
Corrosion resistance: An oxide film naturally forms on the surface of the aluminum shot, providing excellent corrosion resistance.
Product Specifications
I. Standard Particle Size (Cylindrical Cutting Shot/Rounded Shot)
Specifications (mm) Applicable Scenarios
Φ0.6mm Precision small parts, medical devices, electronic components
Φ0.8-1.0mm Small die castings, aluminum profiles, thin-walled parts
Φ1.2-1.5mm Deburring of general castings, aluminum alloy wheels
Φ2.0-2.5mm Medium and large castings, removal of thick oxide scale
Φ3.0-4.0mm Heavy workpieces, surface cleaning of large parts
II. Shape Selection Instructions
Shape Features Applicable Scenarios
Cylindrical Cutting Shot Has certain edges and corners, strong cutting force More obvious deburring and oxide scale removal effect
Rounded Shot Smooth end face, no sharp edges and corners Precision parts processing, occasions with high surface quality requirements
Main Application Areas
1. 1. Aluminum Castings and Aluminum Alloy Products
* Descaling and sandblasting of aluminum alloy castings such as aluminum alloy wheels, engine cylinder heads, and intake pipes.
* Deburring and surface defect elimination of die-cast aluminum parts.
* Matte finishing and sandblasting enhancement of aluminum profiles.
2. Zinc and Copper Castings
* Surface treatment of zinc alloy die-castings (such as locks and hardware).
* Deoxidation and brightening treatment of copper castings and copper handicrafts.
3. Automotive Parts
* Surface cleaning and deburring of precision castings such as engine parts, transmission housings, and steering knuckles.
* Surface pretreatment before painting to improve coating adhesion.
4. Hardware Tools and Machinery Manufacturing
* Rust removal and descaling of hardware tools.
* Surface treatment of mechanical parts, instruments, and pump/valve housings.
5. Medical Devices and Electronics Industry
* Deburring and surface brightening of precision medical device parts.
* Surface treatment of LED semiconductors and electronic components.
6. Metal Smelting Additives
* Used as a deoxidizer or alloying additive in metal smelting processes.
Precautions: Storage Environment: Store in a dry, well-ventilated warehouse free from corrosive substances. Protect from rain. Do not use packaging materials or transport vehicles containing corrosive substances such as acids, alkalis, or salts for loading and unloading.
