Coated Sand Process Fire Grate Plate
Powerful Solutions For Business Growth Our fire grate plates are produced using the coated sand molding process. This manufacturing method results in a product with a smooth surface, precise dimensions, and excellent resistance to heat and deformation. It is designed for long-lasting performance...
- Product Introduction

Powerful Solutions For Business Growth
Our fire grate plates are produced using the coated sand molding process. This manufacturing method results in a product with a smooth surface, precise dimensions, and excellent resistance to heat and deformation. It is designed for long-lasting performance in industrial furnaces and incinerators.
Product Features
Thanks to the coated sand process, our fire grate plates feature exceptional dimensional accuracy and a smooth surface finish. This ensures that each plate fits seamlessly into place without the need for on-site adjustments or grinding. As a result, installation time is reduced, while the overall sealing and stability of the furnace chamber are enhanced, preventing issues such as material leakage or uneven airflow caused by dimensional deviations.

Excellent Thermal Shock Resistance

Fire grate plates operate in environments with extreme and rapid temperature fluctuations. Leveraging the dense and uniform internal structure of coated sand castings, our products effectively withstand cyclic thermal stress, outperforming traditional castings in thermal shock resistance. This translates into reliable performance with minimal warping or cracking during operation, significantly extending the service life and reducing maintenance costs.
Under sustained high temperatures, conventional grate plates are prone to softening, deformation, and jamming. By combining the coated sand process with high-quality heat-resistant cast iron, our products maintain exceptional shape stability and structural strength even at temperatures up to 900°C and beyond. This ensures long-term smooth and reliable operation of the grate system, effectively preventing unplanned downtime caused by component deformation.

Superior Wear and Corrosion Resistance

The coated sand process fully unlocks the wear-resistant potential of materials like high-chromium cast iron. With a defect-free internal structure and uniformly distributed wear-resistant alloy phases, our grate plates withstand both physical abrasion from fuel and chemical corrosion from slag. While the initial unit cost may be slightly higher, the significantly extended service life leads to lower annual operating costs, delivering outstanding comprehensive economic benefits.
Coated Sand Process
The coated sand process is an advanced precision casting method particularly suited for manufacturing metal castings that demand high dimensional accuracy, excellent surface quality, and stable performance. This process uses sand grains coated with a solid resin film as the molding material. During production, the preheated metal mold is brought into contact with the coated sand. The high temperature causes the resin on the sand surface to melt and undergo cross-linking and solidification, forming a high-strength, high-precision, and clearly defined thin-walled hollow shell mold on the pattern. Once this shell mold is assembled and closed, molten metal can be poured into it. After the casting solidifies and cools, the resin, having fully combusted and lost its adhesiveness due to the high temperature, allows the sand shell to be easily removed from the casting surface. This results in a nearly burr-free product with a smooth finish.
Thanks to these characteristics, the coated sand process is an ideal choice for manufacturing components such as furnace grate plates, which require long-term stable performance in high-temperature and high-wear environments.
Product Showcase





Product Information
| Product Name | Coated sand process fire grate plate |
| Logistics & Shipping | Logistics, Railway, Sea Freight, Air Freight |
| Payment Terms | 30% advance payment, remaining 70% to be settled before shipment. |
| Material | High-Chromium Cast Iron,Nickel-Chromium Heat-Resistant Cast Iron,Ductile Iron,Ductile Iron etc. |
| Services | One-stop product services, Pre-shipment inspection services |
Frequently Asked Questions
What is the coated sand process? What advantages does it have over traditional casting?
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The coated sand process is a precision casting technology that involves coating sand particles with a resin film to create high-strength, high-precision molds. Its advantages include producing castings with higher dimensional accuracy, smoother surfaces, and denser internal structures, significantly enhancing the grate plate's resistance to deformation and service life.
What is the biggest advantage of your grate plates?
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The core advantages of our products are long service life and high reliability. This is attributed to the exceptional precision and density achieved through the coated sand process, combined with the high-quality heat-resistant materials we use (such as high-chromium cast iron). Together, they ensure stable performance under harsh conditions involving high temperatures, wear, and thermal shock.
What is the maximum temperature this grate plate can withstand?
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This depends on the material selected. Our standard high-chromium cast iron material (e.g., Cr26) can operate stably for extended periods at temperatures up to 950°C, with short-term peak resistance up to 1100°C. For higher temperatures, we offer other material options such as heat-resistant steel.
Is the product surface smooth? Does it require secondary processing?
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Yes, the coated sand process ensures the castings have very smooth surfaces with minimal burrs. They are cleaned before leaving the factory and can typically be installed directly without additional surface grinding or machining, saving you time and costs.
What materials do you mainly offer?
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We primarily provide high-chromium cast iron series (e.g., Cr15, Cr26, Cr28), nickel-chromium cast iron, and heat-resistant nodular cast iron. Specific recommendations depend on your application conditions (e.g., temperature, fuel type, combustion method).
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