How To Assist in The Processing Of Raw Materials?

Steel grits are generally used for rust removal from steel structures, bridges, and ships. Medium-grained steel is typically used, while medium/coarse-grained steel is used for cleaning castings and molds to quickly remove residual sand. Surface pretreatment uses finer grit (0.2–0.8 mm) for surfaces meeting a Sa2.5 grade.

In terms of shape, steel grit sand material is angular, offering strong cutting power, leaving a clear profile, and has a high density (≈7.8 g/cm³). It also boasts high single-grain kinetic energy and efficiency, supports magnetic recycling, and has a high recyclability rate (up to 90%+). It has a low long-term unit cost. However, due to its iron content, it is generally not permitted in industries where metal contamination is unacceptable, such as maritime and food processing.

For customers who require it, we still provide uploadable and downloadable reports: chemical composition (XRF), PSD, SEM, abrasion/attrition tests, recovery rate, and third-party inspection certificates (SGS/ISO).

Garnet, with its sharp grains and good chemical inertness, is a natural, non-metallic mineral abrasive commonly used in polishing, sandblasting, and waterjet cutting. As a professional manufacturer from China, we are dedicated to solving the pain points of "performance quantification, application matching, and long-term cost" for every wholesale customer.

We will provide mineral phase and main content ranges to demonstrate consistency based on your requirements. We have developed fine garnet grains for polishing and medium-coarse grains for sandblasting, tailored to the specific application areas of our clients. We also provide PSD curves and sieve size comparisons upon request. Because natural angular grains have strong cutting power (HM ≈ 6.5–7.5, density approximately 3.5–4.3 g/cm³), they influence impact energy and rebound. Furthermore, based on their cleanliness, they are particularly suitable for the routine processing of glass, coatings, or food/medical equipment parts.

Mirror polishing (molds, bearings, etc.) typically uses high-sphericity, fine-grained steel shot (0.1–0.4 mm) to achieve low fragmentation and low surface oxidation. For medium polishing/deburring of aluminum and automotive parts, 0.4–0.8 mm shot is often used to balance removal and shine. Initial polishing for deburring generally uses larger-grained shot (0.8–1.5 mm) to increase removal rate.

Because of its spherical shape, steel shot prioritizes uniform impact, making it suitable for polishing and shot peening. Furthermore, the high density of steel (≈7.8 g/cm³) results in high energy per shot, leading to more efficient polishing. Additionally, steel shot supports magnetic recovery and can be recycled multiple times, resulting in lower long-term operating costs. We generally recommend prioritizing steel metal shot product, especially for fatigue strengthening or high-gloss polishing.