| Customization: | Available |
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| Natural Abrasive Type: | Natural Corundum |
| Artificial Abrasive Type: | Corundum Abrasives |
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The manufacturing of Brown Aluminum Oxide involves a series of standardized steps, typically as follows:
Primary Raw Material: High-quality bauxite serves as the main feedstock.
Pre-treatment: The bauxite is crushed and screened to achieve the required particle size and uniformity for the subsequent smelting process.
The prepared bauxite is mixed with specific additives (e.g., coke, iron filings).
Purpose: This mixture controls the final product's chemical composition, color (brown hue), and physical properties like hardness and toughness.
The raw material mixture is fed into a submerged electric arc furnace.
Process: It is smelted at extremely high temperatures (above 2000°C). Here, the bauxite is reduced and fused with the additives to form molten brown aluminum oxide (alumina).
The molten material is tapped from the furnace and subjected to rapid cooling.
Method: It is typically poured into a cooling basin or onto thick plates. This quick solidification forms large, crystalline blocks or "ingots."
The solidified blocks are progressively crushed, milled, and ground.
Screening: The material is then precisely screened (sieved) to separate it into various standard grit sizes, ensuring strict particle size distribution and uniformity.
Packaging: The finished grits are packaged according to customer specifications (e.g., bags, big bags).
Storage: Products are stored in a dry, ventilated warehouse to prevent moisture absorption and contamination before shipment.
Technical data sheet
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item
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value
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Type
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blasting media
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Customized support
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OEM, ODM, OBM
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Place of Origin
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China
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Shandong
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Brand Name
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Junda
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Model Number
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Fineness of sand
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Usage
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sand blast
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Abrasive Grain Sizes
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12#-220#
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Product name
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Brown fused alumina
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Appearance
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Brownish red particle
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Hardness
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≥9.0
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Micro hardness
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HV2200-2300
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Melting point
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2250ºC
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Max temperature
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1900ºC
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Bulk density
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1.75-1.95g/cm3
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Application
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Refractory materials, fine casting
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Size
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16#-325# or According Customer Required
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Abrasive Grain Sizes
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F12-F1200, 0-1mm, 1-3mm, 3-5mm, 5-8mm, 8-12mm
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Grinding: Widely used for precision grinding of metals, alloys, and castings.
Polishing: An effective abrasive for polishing surfaces of metals, glass, and ceramics to a desired finish.
Abrasive Tools Manufacturing: A primary raw material in the production of grinding wheels, sharpening stones, abrasive belts, and abrasive papers.
2. Surface Preparation & Treatment
Sandblasting / Blast Cleaning: Used for cleaning, deburring, and creating surface profiles on metals, concrete, and stone. Effective for removing rust, old paint, and scale.
Surface Roughening: Provides anchor patterns on surfaces to improve coating adhesion (e.g., before painting or lining).
3. Industrial Manufacturing
Refractory Materials: A key component in manufacturing high-temperature resistant bricks, castables, and monolithic linings for furnaces and kilns.
Ceramics & Composites: Used as a filler or reinforcement material to enhance the hardness, strength, and wear resistance of ceramic products and composite materials.
4. Other Specialized Uses
Anti-Skid Aggregates: Applied to flooring, stair treads, and non-slip coatings to increase traction.
Filtration Media: Used as a support layer in multi-media filters for water treatment due to its hardness and chemical inertness.
Lapping & Superfinishing: Employed in precision lapping compounds for achieving extremely fine surface finishes on mechanical components.
We offer the following standard packaging configurations for sea shipment:
Option A: 25 kg bags (inner packaging), which are then consolidated into a Big Bag / Flexible Intermediate Bulk Container (FIBC).
Option B: 1 metric ton (1,000 kg) directly packaged in a single Big Bag / FIBC.
The designated packaging (25kg bags within FIBCs or 1-ton FIBCs) is specifically designed and tested to be suitable and secure for ocean transportation.
This ensures product integrity and safety during long-distance maritime shipping.
Palletization & Boxing: We can provide palletization of the bags/Big Bags, along with full boxing or shrink-wrapping for maximum stability and protection.
Note: These enhanced services incur additional charges. Please request a separate quotation for these options.
What does Jinan Junda Industrial Technology Co., Ltd. do?
Jinan Junda Industrial Technology Co., Ltd. is a manufacturer and supplier specializing in sandblasting abrasives and equipment, as well as surface treatment solutions. Established in 2005, the company produces a range of products including Steel Shot, Steel Grit, Garnet Sand,Glass Beads,Copper Slag,Brown Fused Alumina, White Fused Alumina,Black Silicon carbide powder,Forged Steel Ball,Cast Steel Ball,Chrome Steel Ball,Carbon Steel Ball,Stainless Steel Ball,Paint Sprayer Machine,Air Compressor,Air Storage Tank,Sandblasting machines, and related spare parts. It also offers customized engineering support, OEM/ODM services, and holds international certifications such as ISO 9001 and CE. Serving clients worldwide across industries like surface preparation and corrosion control, Jinan Junda is recognized for its quality products, professional service, and competitive pricing.
Which certifications has our company obtained?F12-F1200 Brown fused alumina 0-1mm Brown fused alumina 1-3mm Brown fused alumina 3-5mm Brown fused alumina 5-8mm Brown fused alumina 8-12mm Brown fused alumina
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