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Premium Refractory Castable Cement Manufacturer & Supplier

High-performance unshaped refractories for kilns, furnaces, steel ladles, cement plants, and industrial heating systems. Trusted by global industries since the 1990s.

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50,000+ Tons Annual Capacity

Large-scale production facility in Zhengzhou, China

ISO 9001:2000 Certified

Committed to quality, innovation, and reliability

Global Export

Serving clients in Turkey, Vietnam, Spain, Korea, Ireland & more

About RS Refractory

Zhengzhou Rongsheng Refractory Material Co., Ltd. is a leading manufacturer and supplier of high-quality unshaped refractory materials in China. Located in Xinmi City, Henan Province — known as the "refractory capital" — we leverage abundant local mineral resources including bauxite, chamotte, and fused magnesia to produce superior refractory castables, mortars, cements, and aggregates.

Since our founding in the early 1990s, RS Group has evolved into a comprehensive enterprise integrating research, manufacturing, and international trade. In 2002, we achieved ISO 9001:2000 certification, affirming our commitment to quality management and customer satisfaction.

Our new large-scale castable plant is under construction, expanding our capacity to meet growing global demand. We offer customization services for special industrial requirements and maintain strict quality control across all production stages.

Types of Refractory Castables

Our Refractory Products

Explore our wide range of high-performance unshaped refractories designed for extreme temperatures, abrasion resistance, insulation, and chemical stability.

High Alumina Castable

High Alumina Castable

Monolithic refractory made from high alumina aggregate and binder. Ideal for kilns, furnaces, and high-temperature zones requiring excellent thermal stability and structural strength.

  • • Al₂O₃ content: 55%–85%
  • • Service temperature: Up to 1600°C
  • • High mechanical strength
  • • Resistant to slag and thermal shock
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Ultra-High-Strength Nano-Grade Insulating Castable

Ultra-High-Strength Nano-Grade Insulating Castable

Advanced insulating castable with nano-pore structure for maximum thermal efficiency and mechanical durability in high-stress environments.

  • • Ultra-low thermal conductivity
  • • High compressive strength
  • • Nano-pore technology
  • • Lightweight & energy-saving
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Micro-nano Lightweight Aggregate

Micro-nano Lightweight Aggregate

Engineered lightweight aggregate for use in insulating castables, offering superior thermal performance and reduced structural load.

  • • Ultra-low bulk density
  • • High porosity
  • • Stable up to 1400°C
  • • Enhances insulation properties
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Non-Stick Aluminum Refractory Castable

Non-Stick Aluminum Refractory Castable

Specially formulated to resist aluminum metal penetration and adhesion in foundry and smelting applications.

  • • Anti-wetting properties
  • • Resists metal penetration
  • • Ideal for aluminum handling
  • • Long service life
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Calcined Bauxite Aggregate

Calcined Bauxite Aggregate

High-purity calcined bauxite used as primary aggregate in high alumina and corundum castables for superior wear and heat resistance.

  • • Al₂O₃ > 85%
  • • High hardness & density
  • • Excellent refractoriness
  • • Low impurities
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Low Cement Castable

Low Cement Castable

High-performance castable with reduced cement content for improved density, strength, and thermal shock resistance.

  • • Cement content: 5–7%
  • • High service temperature
  • • Low porosity
  • • Enhanced durability
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Ultra Low Cement Castable

Ultra Low Cement Castable

Advanced formulation with cement content below 3%, offering superior high-temperature performance and structural integrity.

  • • Cement content: <3%
  • • High hot strength
  • • Excellent slag resistance
  • • Used in critical zones
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Insulating Castable

Insulating Castable

Lightweight refractory castable with high porosity and low thermal conductivity for energy-efficient linings.

  • • Low bulk density
  • • Reduces heat loss
  • • Easy to install
  • • Cost-effective insulation
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Why Choose RS Refractory?

ISO Certified Quality

We adhere to ISO 9001:2000 standards across all manufacturing processes.

High Performance

Engineered for extreme temperatures, abrasion, and chemical resistance.

Global Export

Trusted by industries in Turkey, Vietnam, Spain, Korea, Ireland, and more.

Custom Solutions

We offer tailored formulations to meet your specific industrial needs.

30+
Years in Industry
50K+
Tons Annual Output
60+
Countries Served
1000+
Industrial Clients

Frequently Asked Questions

What is refractory castable cement?

Refractory castable cement is a type of unshaped refractory material that can be poured or pumped into place and then hardened to form a solid lining. It is used in high-temperature industrial furnaces, kilns, and boilers due to its excellent heat resistance and structural integrity.

What’s the difference between low cement and ultra-low cement castables?

Low cement castables contain 5–7% cement, while ultra-low cement castables contain less than 3%. The lower cement content improves high-temperature strength, reduces porosity, and enhances resistance to slag and thermal shock.

Can I customize the refractory castable for my application?

Yes. RS Refractory offers custom formulation services to meet specific temperature, chemical, and mechanical requirements for unique industrial applications.

How do I install refractory castable?

Castables are typically mixed with water, poured or vibrated into place, and then cured and dried according to manufacturer specifications. Proper curing ensures optimal strength and performance.

Get in Touch

For inquiries, quotes, or technical support, visit our official website to contact RS Refractory Castable Cement Manufacturer.

Visit Official Website

Email: sales@refractorycastablecement.com

Company: Zhengzhou Rongsheng Refractory Material Co., Ltd.

Address: 13th Floor, No.6 Building, China Central Electronic Commerce Port, Daxue Road, Erqi District, Zhengzhou City, Henan Province, China

Website: www.refractorycastablecement.com

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