


Xingya Silica Processing Factory
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Quartz sand
Crushed silica pebbles, including silica stones and quartz gravel, are primarily used in the metallurgical industry as siliceous raw materials, flux-regulating agents, and basic refractory material feedstock. They are widely applied in steelmaking, non-ferrous metal smelting, and alloy production processes.
Crushed silica pebbles, including silica stones and quartz gravel, are primarily used in the metallurgical industry as siliceous raw materials, flux-regulating agents, and basic refractory material feedstock. They are widely applied in steelmaking, non-ferrous metal smelting, and alloy production processes.
1. High Silicon, Low Impurities, Quality Assured
Selected from high-grade quartz ore layers with natural SiO₂ content of 98–99.5%, and certain high-end grades exceeding 99.7%, far surpassing standard industrial requirements.
Strict control of impurities: Fe₂O₃ 0.03–0.08%, Al₂O₃ ≤ 0.2%, CaO and MgO ≤ 1.0%, and no heavy metal residues, ensuring downstream product quality, particularly for applications demanding high whiteness and purity.
2. Exceptional Hardness and Stable Performance
Main component: natural quartz with Mohs hardness 7, high compressive strength, and low wear rate.
Outstanding wear resistance and thermal stability with a melting point up to 1713°C, suitable for high-temperature metallurgy, refractory material production, and other demanding applications.
Reduces material consumption and maintenance costs due to longer service life.
3. Precise Grading for Diverse Requirements
Professional screening and magnetic iron removal processes ensure uniform particle size.
Available sizes: 20–150 mm lumps, 1–20 mm crushed stones, and customizable mesh products.
Oversized or undersized particles strictly limited to ≤10%, enabling precise adaptation to customer production processes.
Extremely low water absorption and porosity facilitate subsequent processing, melting, and forming operations.
4. Stable Mineral Source and Controllable Batches
Sourced from domestic high-quality silica deposits with standardized mining and processing.
Each batch undergoes composition testing, particle size analysis, and hardness verification, accompanied by detailed inspection reports.
Ensures minimal variation in chemical composition and performance, meeting the requirements for continuous, standardized industrial production.
Core Technical Specifications — High-Purity Silica Pebbles
Core Technical Specifications — High-Purity Silica Pebbles
(Standard model parameters shown; custom specifications available upon request)
| Parameter Category | Specifications |
|---|---|
| Silicon Dioxide (SiO₂) Content | ≥ 99% |
| Impurities | Fe₂O₃ ≤ 0.18%, Al₂O₃ ≤ 0.2%, CaO ≤ 1.0%, MgO ≤ 1.0% |
| Mohs Hardness | 7 |
| Density | 2.66–2.68 g/cm³ |
| Melting Point | 1713℃ |
| Typical Particle Size | 10–30 mm, 30–60 mm, 60–100 mm (customizable) |
Key Application Areas
1. Metallurgy
Core raw material for ferrosilicon and silicon alloy production.
High silicon content reduces electricity and reducing agent consumption, improves elemental recovery, decreases slag generation, and stabilizes furnace operations.
2. Glass & Photovoltaics
Suitable for ultra-white glass, photovoltaic glass, and quartz crucible production.
Low iron content ensures high light transmittance, boosting PV module efficiency.
Also used for fused quartz sand processing.
3. Ceramics & Refractories
Ideal for high-end ceramic bodies, glazes, and siliceous refractory materials.
High-temperature resistance and chemical stability improve refractoriness and structural strength.
4. Chemicals & Fillers
Used for producing silica gel, water glass, and various silicates.
High-quality filler for plastics, rubber, coatings, and acid-resistant applications like sulfuric acid absorption towers.
5. Foundry & Grinding
Applied as foundry molding sand, sandblasting media, and grinding raw material.
High hardness and wear resistance enhance casting precision and meet surface treatment and grinding requirements.

Procurement & Service Information
We support bulk purchasing and customized production, tailoring product specifications such as purity and particle size according to your industry requirements and production processes. Sample testing services are available to ensure product suitability.
Our services include:
Reliable logistics to guarantee products arrive in optimal condition.
Professional technical support, offering guidance on raw material selection and process optimization to help improve production efficiency and product quality.
For detailed inspection reports, samples, or customized quotations, please contact us. We look forward to establishing a long-term and stable partnership with your company!
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