Key factors affecting zinc shot prices

The core factor influencing zinc shot prices can be summarized as "you get what you pay for." Lower-priced zinc shots often have higher waste and more pollution, resulting in higher overall costs. Specifically, consider the following five dimensions:

• Raw material purity (cost cornerstone): Purity is the biggest variable. The price difference between the national standard 99% and the high-end 99.995% can be 20%-30%. Low-purity pellets contain impurities such as iron and lead, which not only turn black after spraying but also contaminate your workpieces (e.g., causing discoloration of aluminum parts).

• Microscopic morphology (determines lifespan): The cost of sphericity ≥85% (national standard passing grade) and ≥93% (high-end atomization method) is completely different. Irregular pellets are easily broken and consumed more than 30% faster than high-quality pellets, making frequent replenishment more expensive.

• Hardness range (process matching): There is a significant price difference between soft (HV 35-45) and hard (HV 80-110) pellets, but the hardness error must be ≤±5HV. Pellet with too large a tolerance will over-cut and damage the mold texture.

• Particle size distribution (efficiency trap): Low prices are often due to imprecise screening, resulting in a large amount of ultrafine powder (<0.1mm). This dust can clog machines and contaminate dust removal systems; the cost of manual cleaning far exceeds the small amount of money saved by buying pellets.

• Packaging and Qualifications (Hidden Costs): Manufacturers that offer vacuum-sealed moisture-proof packaging and include a particle size distribution chart and material testing report with their shipments have higher costs. However, buying cheap, non-standard bulk pellets carries a significant risk of the entire batch being scrapped if they become damp, oxidize, and turn white.