Premium Expanded Vermiculite China Suppliers and Factory for Industrial Use

Leading China factory and suppliers of premium expanded vermiculite. A natural inorganic silicate mineral offering extreme heat resistance up to 1100C and superior insulation for metallurgy, construction, and agriculture.

SupplierXingtai Luxi Environmental Protection Technology Co., Ltd.www.xingtailuxi.com

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About this product

Product information from the supplier.

Vermiculite is a premium natural inorganic silicate mineral derived from granite hydration, characterized by its unique mica-like structure. This versatile mineral is available in various forms, including flakes and expanded granules, and comes in distinct color grades such as golden, silver, and milky white. When subjected to high-temperature calcination, raw vermiculite undergoes a rapid expansion process, increasing its volume by 6 to 20 times, creating a lightweight, layered structure with exceptional physical properties.

Engineered for high-performance industrial applications, expanded vermiculite offers superior thermal and electrical insulation, capable of withstanding extreme temperatures up to 1100°C. With a specific gravity ranging from 60-180kg/m³, it serves as a critical component across diverse sectors including metallurgy, construction, agriculture, and chemical processing, providing a reliable solution for fireproofing, sound absorption, and soil conditioning.

Detailed Parameters

SiO2 (%)	40-50	Al2O3 (%)	20-30
CaO (%)	0-2	MgO (%)	1-5
Fe2O3 (%)	5-15	Max Temp	1100°C
Specific Gravity	60-180kg/m³	Expansion Ratio	6 to 20 times
Available Sizes	0.5-1mm, 1-3mm, 2-4mm, 3-6mm, 4-8mm, 20-40mesh, 40-60mesh, 60-80mesh, 200mesh, 325mesh, or customized.

Key Advantages

Extreme Heat Resistance

Withstands temperatures up to 1100°C, making it an ideal choice for fire-resistant boards and industrial refractory materials.

Superior Insulation

Excellent thermal and electrical insulation properties, perfect for pipe insulation and indoor/outdoor wall ceilings.

Ultra-Lightweight

Low specific gravity (60-180kg/m³) reduces structural load in lightweight concrete and wall mortar applications.

High Absorbency

Acts as an efficient adsorbent and filter aid, suitable for seawater oil adsorption and sewage treatment.

Versatile Application

Multi-industry utility ranging from metallurgy slag removal to agricultural soil conditioners and horticulture.

Customizable Grade

Available in multiple mesh sizes and colors (Golden, Silver, White) to meet specific technical requirements.

Product Gallery

Management Platforms

Flexible Packaging

Offering 1-ton jumbo bags or smaller 10kg/25kg bags within jumbo bags for optimized handling.

Logistics Optimization

Strategically shipped via Xingang Port or Qingdao Port, China, ensuring efficient global delivery.

Quality Control

Strict adherence to chemical composition standards for SiO2, Al2O3, and MgO levels.

Customization Support

Ability to provide specific mesh sizes and granular dimensions based on customer requests.

Inventory Management

Large-scale production capacity to support continuous supply for large construction and metallurgy projects.

Technical Support

Expert guidance on applying vermiculite as a slag removal agent or fireproof mortar additive.

Investment Return Comparison

Performance Metric	Standard Insulation	Premium Vermiculite
Thermal Limit	Medium (500-800°C)	High (Up to 1100°C)
Weight Factor	Standard Density	Ultra-Light (60-180kg/m³)
Application Range	Limited to Construction	Multi-industry (Agri/Steel/Build)
Expansion Capability	Low/None	Extreme (6x to 20x)
Material Stability	Variable	High Inorganic Stability

Frequently Asked Questions

Q: What are the primary industrial uses of expanded vermiculite in metallurgy?

In the metallurgical industry, expanded vermiculite is primarily used as a steel frame coating material, a metallurgical slag removal agent, and as a key component in refractory materials due to its high heat resistance.

Q: How does vermiculite benefit agricultural and horticultural practices?

It serves as an excellent soil conditioner and wetting agent, improving aeration and water retention for seedling cultivation, golf course lawns, and as a carrier for plant growth agents.

Q: What is the maximum operating temperature for expanded vermiculite?

Expanded vermiculite possesses strong thermal insulation properties with a maximum usage temperature of 1100°C, making it ideal for extreme heat environments.

Q: Can you provide vermiculite in specific particle sizes?

Yes, we offer a wide range of sizes including 0.5-1mm up to 4-8mm, as well as various mesh sizes (20-325 mesh) or according to specific customer requests.

Q: Which shipping ports are used for the delivery of this material?

All orders are typically delivered through Xingang Port or Qingdao Port in China to ensure streamlined international logistics.

Q: What are the packaging options available for bulk orders?

We provide 1-ton jumbo bags, as well as options for 10kg or 25kg small bags packed within a larger jumbo bag to suit different handling needs.