The product system covers a full range of models adapted to different substrate materials, sandblasting precision and working condition requirements. Classified by abrasive material, it can be divided into five categories: brown fused alumina sand, white fused alumina sand, silicon carbide sand, quartz sand and stainless steel sand. Among them, brown fused alumina sand has high hardness, strong toughness and excellent cost performance, suitable for sandblasting roughening of conventional metal workpieces such as carbon steel and cast iron; white fused alumina sand features high purity, good grinding efficiency and no residual impurities after sandblasting, adapted to the surface pretreatment of precision workpieces such as stainless steel, aluminum alloy and titanium alloy; silicon carbide sand has extremely high hardness and sharp edges and corners, suitable for surface treatment of high-hardness cemented carbide workpieces or surfaces requiring deep roughening; quartz sand has uniform texture and low cost, applicable to the pretreatment of large-area steel structural parts with low requirements for sandblasting precision; stainless steel sand can be recycled repeatedly and will not cause rust pollution on the workpiece surface after sandblasting, specially designed for workpieces with strict cleanliness requirements such as food machinery and medical devices. Classified by particle size specification, it is divided into three categories: coarse-grained sand (10–40 mesh), medium-grained sand (40–80 mesh) and fine-grained sand (80–200 mesh). Coarse-grained sand is suitable for quickly removing thick oxide scale and old coatings; medium-grained sand is used for preparing anchor patterns with medium roughness; fine-grained sand is adapted to the fine roughening treatment of precision workpieces.

All abrasive sand products are made from natural minerals or metallurgical raw materials through processes such as crushing, shaping, multi-stage screening and purification. The particles are in regular angular or spherical shapes with uniform particle size distribution and no powdery fines mixed in, ensuring consistent impact force during sandblasting and uniform and controllable depth of the formed anchor patterns. The products have excellent chemical stability, do not contain water-soluble impurities, and will not leave corrosive substances on the workpiece surface, avoiding secondary rusting of the substrate after sandblasting. Meanwhile, they have good wear resistance and are not easy to break in sandblasting equipment. Dry or wet sandblasting methods can be selected according to working condition requirements, and wet sandblasting can effectively reduce dust pollution during the sandblasting process. The product boasts core advantages such as excellent anchor pattern forming effect, which can improve the coating bonding strength by more than 30%; compatibility with various sandblasting machines (pressure sandblasters, suction sandblasters, wet sandblasters); complete particle size specifications to meet different roughness requirements ranging from Ra1.6 μm to Ra12.5 μm; wide material compatibility to match various substrates such as steel, aluminum, titanium and ceramics; and support for customized particle size ratio and material type according to customers' special needs.

Backed by mature production and R&D capabilities, we can provide personalized abrasive sand selection solutions according to the sandblasting needs of different workpieces, including recommending suitable materials, particle size specifications and sandblasting process parameters. The product is widely used in the pretreatment links of thermal spraying such as aerospace components, petrochemical equipment, rail transit vehicles, wind power tower tubes and mold surfaces. It can significantly improve the bonding quality between the coating and the substrate, extend the service life of sprayed workpieces and reduce later maintenance costs.

If you want to learn more product details, please contact Jiangxi Velavision.