30# Brown Corundum Granular Sand

ANCHUANG's 30# Brown Corundum Granular Sand is a high-performance abrasive material engineered for precision grinding and surface treatment. Produced through the high-temperature smelting of premium bauxite, anthracite, and iron filings in an electric arc furnace, it boasts an Al₂O₃ content of 95–97%, ensuring exceptional hardness and durability. Minor traces of Fe, Si, and Ti further enhance its structural integrity.

With outstanding thermal stability and corrosion resistance, this granular sand is widely utilized in refractory applications across industries such as steel, cement, and glass. Its superior grinding efficiency makes it indispensable in manufacturing, where consistent particle size and aggressive material removal are critical.

Key Specifications:

Grit Size: 30# (medium-coarse)

Composition: High-purity alumina (Al₂O₃ ≥ 95%)

Typical Applications: Surface preparation, abrasive blasting, refractory linings, and precision tooling

FANCHUANG's rigorously graded 30# Brown Corundum ensures uniform particle distribution, delivering reliable performance in both industrial and specialized abrasive processes. Its versatility and resilience make it a preferred choice for heavy-duty grinding and high-temperature environments.

Common brown corundum models

section sand		0-1mm 1-3mm  3-5mm  5-8mm
fine powder		200#-0       320/325-0
grain size sand	F/P	12# 14# 16# 20# 24# 30# 36# 40# 46# 54# 60# 70# 80# 90# 100# 120# 150# 180# 220#
mircro powder	W	W63 W50 W40 W28 W20 W14 W10 W7 W5 W3.5
	JIS	240# 280# 320# 400# 500#  600#  700# 800# 1000# 1200# 1500# 2000# 2500# 3000#
	EU	F230 F240 F280 F320 F360 F400 F500 F600 F800 F1000 F1200 F1500

raw material	smelting bauxite, anthracite and iron fillings
crystal form	trigonal system
main chemical compostion	α-Al2O3
color	brown
smelting method	tilting furnace/fixed furnace
true density	≥3.9g/cm3
Moh's hardness	9.0
melting point	2250℃
Grade	Frist grade
chemical index
Al2O3	≥95%
SiO2	≤1.0%
Fe2O3	≤0.15%
TiO2	2.2-2.8%

 

Premium Raw Material Selection
FANCHUANG sources high-purity abrasive-grade bauxite with Al₂O₃ content exceeding 85% for smelting. Their workers meticulously handpick raw materials to guarantee foundational quality, ensuring optimal hardness and durability in the final product.

Extended Secondary Refining Process
Going beyond industry standards, FANCHUANG subjects all brown corundum to an additional 3-hour refining cycle after initial smelting. This rigorous process enhances crystal structure uniformity, resulting in superior toughness and cutting performance.

Precision Manual Grading
Post-smelting, experienced technicians manually screen and classify each batch of brown corundum blocks. This hands-on approach ensures strict adherence to 30# granular specifications, eliminating inconsistent particle sizes.

Advanced Purification Technology
Leveraging 5-stage high-power magnetic separators, FANCHUANG aggressively removes iron and silicon impurities. Their proprietary technology delivers high-purity corundum with low residual contaminants, balancing cost-efficiency with exceptional abrasive efficacy.

End-to-End Quality Assurance
From raw material audits to final packaging, FANCHUANG's QC team enforces stringent inspections at every production phase. Their dual-layer verification system-combining technical expertise with managerial oversight-ensures zero-defect output.

 

Refractory Solutions – Essential for producing high-performance refractory materials, including castables, bricks, and linings for extreme-temperature environments like furnaces and kilns.

Precision Sandblasting – Ideal for surface treatment on aluminum, copper, glass, and precision molds, ensuring efficient cleaning and texture refinement.

High-Precision Grinding – A top choice for grinding optical glass, monocrystalline silicon, lenses, watch faces, and gemstones, delivering unmatched surface finish and accuracy.

Resin Bonded Abrasives – Offers superior hardness, toughness, and optimized grain structure for consistent cutting performance in bonded grinding wheels and cutting tools.

Coated Abrasive Production – Serves as the core material for manufacturing sandpaper, abrasive cloths, and belts, providing reliable surface preparation and finishing.

Wear-Resistant Enhancements – Used as a functional filler in automotive brake components, specialty tires, industrial flooring, and runway surfaces to boost durability and friction resistance.

Filtration & Drilling Applications – Acts as a filtering medium for water purification, mineral processing, and oil drilling mud weighting, ensuring efficiency in separation and density control.

Hydro-Abrasive Cutting – Deployed in high-pressure water jet cutting systems for slicing steel, oil pipelines, and thick metals, enabling clean, precise cuts without thermal distortion.

 

Q:Who are we?
A: We are ZHENGZHOU FANCHUANG SCIENCE AND TECHNOLOGY CO., LTD, a professional manufacturer and supplier of high-quality abrasive products. Based in Zhengzhou, Henan, China, we focus on the research, development, and production of abrasives tailored for industrial and commercial applications. Our products meet strict international quality standards and are trusted by clients worldwide.

Q: Can you accept customization?
A:Absolutely. We understand that different projects require specific abrasive specifications. Whether it's product dimensions, materials, or packaging, our team can customize solutions to match your exact needs. Just share your requirements, and we'll handle the rest.

Q: Are samples available for quality test?
A: Yes, we provide free samples for quality evaluation. However, shipping costs are typically covered by the customer. This ensures you can verify the performance and suitability of our abrasives firsthand.

Q:How long can I get a sample or some samples?

A:Samples are usually prepared and dispatched within 1–3 business days after confirmation. Delivery time depends on your location and chosen shipping method.

Q: How can you guarantee quality?
A: Quality is our top priority. Every batch undergoes rigorous testing, from raw material inspection to final production checks. Our advanced manufacturing processes and strict quality control protocols guarantee abrasives that meet or exceed industry standards.

Q: What are your terms of payment?
A: We offer flexible payment options, including T/T (Bank Transfer), L/C (Letter of Credit), PayPal, and Western Union. Other arrangements can be discussed to ensure smooth transactions.

Q: Where is your nearest loading port?
A: Our primary shipping port is Qingdao, known for its efficient logistics. However, we can also arrange shipments from other Chinese ports based on your preference for cost or convenience.

 

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