Product introduction

Chemical & physical specifications

Xingya Silica Processing Factory, Dalian is a professional grinding media manufacturer, offering two main product lines: natural river pebbles and high-purity silica pebbles.

We understand the diverse requirements of different industries and operating conditions, balancing cost efficiency, grinding performance, and material purity. Whether your priority is maximizing economy or achieving exceptional grinding efficiency and high purity, Xingya provides the most suitable solutions for your needs.

Feature Dimension	Natural River Pebbles	High-Purity Silica Pebbles
Core Advantage	Cost-effective, naturally sourced	High grinding efficiency, wear-resistant, low contamination
Main Composition	Natural quartz, silica, etc. (composition varies by source)	High-purity SiO₂ (≥99%), chemically stable
Hardness & Wear Resistance	High hardness (Mohs ≥7–8), good wear resistance	High hardness (Mohs ≥7), excellent wear resistance, long service life
Grinding Performance	Suitable for fine grinding, produces finer and more uniform slurry	Ideal for fine grinding, yields finer and highly uniform slurry
Contamination Control	May introduce trace impurities, suitable for materials with lower purity requirements	Minimal contamination, strictly maintains chemical composition and whiteness
Typical Applications	Ceramic bodies, water treatment, initial grinding of some chemical raw materials	Ceramic slurries, electronic glass, white cement, high-end pigments, fine chemicals

Chemical & physical specifications

二氧化硅（SiO2）	99.31%
氧化铝（Al2O3）	0.36%
氧化铁（Fe2O3）	0.018%
氧化钙（CaO）	0.09%
氧化镁（MgO）	0.04%

体密/比重（Specific Gravity）	2.66g/cm3
硬度 （Hardness）	8 mohs
烧后白 ( Color after burning )	白色（97%以上）

Normal size

2-4cm	3-5cm	6-8cm	10-12cm
4-6cm	5-7cm	8-10cm	12-15cm

Application

Advantages and Applications of Xingya High-Purity Silica Pebbles

Key Features:

High Purity: Silica pebbles from Xingya Silica Processing Factory contain over 99% SiO₂, ensuring that the grinding process does not introduce contaminants.

Excellent Wear Resistance: With a high hardness (Mohs 8) and chemical stability, high-silica pebbles perform exceptionally well under high-intensity grinding conditions.

Uniform Particle Size: Advanced processing and secondary screening ensure a consistent particle size distribution, meeting precise industrial requirements.

High Silica, Low Iron: The main component lost during grinding is SiO₂, minimizing contamination and making the pebbles suitable for a wide range of raw materials.

Industry Applications:

Ceramics: High SiO₂ content enhances sintering temperature, hardness, wear resistance, thermal expansion, and overall chemical stability of ceramic bodies.

Glass: SiO₂ acts as the glass “skeleton,” improving viscosity, chemical stability, thermal stability, corrosion resistance, and high-temperature performance.

Chemical Industry: High-silica fine powder serves as a filler in rubber, plastics, coatings, and other chemical products, enhancing processing and mechanical properties.

Electronics: SiO₂ is essential for semiconductor and electronic component production, and using Xingya silica pebbles as grinding media ensures high product quality.

Xingya high-purity silica pebbles provide a reliable, low-contamination, and durable solution for grinding and processing raw materials across ceramics, glass, chemical, and electronics industries.