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Application of Metal Abrasives in Shipbuilding Pre-treatment Lines

May 21, 2026

Our company is a single-item champion enterprise in the abrasive industry and currently the largest metal abrasive production base in Asia. As a drafting unit of national standards, Kaitai has formulated the national standard for steel shots, which guides the development direction of the industry. Our independently developed patented product, HQ cast steel shot, is widely used in pre-treatment lines of numerous shipyards. It has won customers' trust thanks to the following four core advantages: 1. High cleaning efficiency, which greatly speeds up working progress; 2. Low overall service cost, helping enterprises cut costs and improve efficiency; 3. It enhances the corrosion resistance of steel materials and lays a solid foundation for subsequent welding work; 4. We provide all-round and full-cycle technical services to safeguard your production. Next, I will give you a detailed introduction to this product.


Application of Metal Abrasives in Shipbuilding Pre-treatment Lines


I. High cleaning efficiency greatly boosts operation rhythm

Our steel shot delivers outstanding cleaning efficiency, enabling rapid and thorough cleaning of steel plates to achieve a cleanliness level above Sa2.5. Our HQ steel shot is manufactured adopting the most advanced domestic production technologies. Especially its tempering process is realized by our patented secondary quenching equipment of HQ brand, which has won the Second Prize of Provincial Science and Technology Progress Award. Our exclusive gas-fired tempering technology ensures thorough and even tempering of steel shots.

 

This results in more uniform and concentrated hardness distribution as well as higher rebound rate of the steel shots. Therefore, our steel shots can finish cleaning your steel plates efficiently in less time. You can increase the conveying speed of steel plates to process more products within a shorter period, ensuring faster and better product delivery. To precisely guarantee uniform product hardness, we conduct hardness tests on all finished products before delivery. By testing the hardness values at 20 different measuring points, we fully ensure the excellent uniformity of our steel shots.


II. Low comprehensive usage cost helps enterprises cut costs and boost efficiency

Our steel shots feature superior wear resistance and a low breakage rate. HQ cast steel shots are manufactured with high-quality scrap steel and exclusive refining furnace production techniques. This process effectively reduces component segregation and surface microcracks formed during the solidification of cast shots, completely eliminates network cementite and lowers the brittleness of steel shots.

 

Steel shots produced in this way have fewer cracks, a lower hollow particle ratio, better toughness, a lower breakage rate and stronger wear resistance. Thanks to their excellent wear resistance in service, the overall cost calculated per unit area is greatly reduced. Moreover, these durable and hard-to-break steel shots generate less dust, extending the service life of dust removal filter cartridges and cutting down replacement frequency, thus effectively slashing operating costs in terms of both consumables and equipment maintenance.

 

In addition, they help save paint consumption. Kaitai steel shots adopt a multi-layer screening process to achieve more uniform particle size distribution. Steel plates treated with such steel shots have a smoother, neater surface and more stable surface roughness, which markedly reduces paint usage. Notably, we have collected and analyzed operational data from multiple shipyards nearby recently, and the statistics prove that the application of our steel shots can save over 15% of paint consumption.


III. Enhance the corrosion resistance of steel and lay a solid foundation for subsequent welding work

With rigorous production processes and stringent screening standards, Kaitai steel shots reach the top-tier industry standards in all key performance indicators. In practical applications, they can precisely meet customers' product requirements in every detail. Workpieces treated with these steel shots feature cleaner surfaces, less residual dust and extremely low salt content, achieving better compatibility with follow-up operational procedures. This not only greatly improves the anti-corrosion performance of steel materials, but also builds a firm foundation for long-term protective effects. Notably, numerous customers have submitted the products for third-party inspections, and the results prove that all indicators including salt content far exceed national standards.

 

IV. Provide all-round and full-cycle technical services to safeguard your production

Pre-sales: Our company boasts a strong team of experts, capable of meeting the production demands of clients across diverse industries. We can tailor the most suitable products for customers and arrange customized production.

 

In-sales: We have on-site service staff specializing in abrasives, after-sales support and equipment. While clients are using our products, we provide on-site follow-up and commissioning services. In accordance with clients' actual on-site production conditions and requirements, we optimize their equipment and production processes to the optimal state, truly helping clients save effort, trouble and costs.

 

After-sales: Kaitai offers systematic skill training services for clients' production staff to effectively improve workers' professional knowledge and operational proficiency. At present, actively responding to customer needs, the company has launched the "Services Enter Ten Thousand Households" campaign. Our professors, scientific researchers, production staff and technical personnel will jointly provide on-site services based on clients' actual demands and conduct special investigations targeting their specific situations. This fully demonstrates Kaitai's firm commitment to serving customers as well as our customer-centric service philosophy.

 

Enterprises currently cooperating with us: Pre-treatment production lines of enterprises such as Beihai Shipbuilding are all adopting our HQ steel shot. Statistics show that clients have cut their overall costs by more than 15% compared with the past.

 

In conclusion: By choosing products from Kaitai, you will achieve higher cleaning efficiency and lower overall operating costs, enhance the corrosion resistance of steel materials, and enjoy all-round and full-cycle professional technical services to safeguard your production operations. We firmly believe this will undoubtedly be your wisest choice.


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  • Tel: +86 159 6501 7758
  • Fax: +86 543 4579 617
  • E-mail: info@kai-tai.com.cn
  • Add: Qingyang, Zouping Town, Shandong Province, China
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