Refractory Castable - Monolithic Lining for Kilns

1,200-1,800ºC

Classification Temperature

25kg/1,000kg

Bag Package

1.6-3.2g/cm³

Bulk Density

ISO/CE/SGS

Certificates

REBO Refractory Castable List

High Alumina CastableAl2O3: ≥50-80%;
Bulk Density≥2.15-2.65g/cm³;

Low Cement CastableAl2O3: ≥45-92%;
Bulk Density≥2.3-3g/cm³;

$Corundum Refractory Castable$

Corundum Refractory CastableSiO2: ≥94-96%;
Bulk Density: 2.34-2.35g/cm³;

$Mullite Refractory Castable$

Mullite Refractory CastableAl2O3: ≥55-70%;
Bulk Density≥2.3-2.6g/cm³;

Silicon Carbide CastableSiC+C: ≥58-83%;
Al2O3≥9-20%;

Acid Resistant CastableSiO2: ≥45-52%;
Bulk Density≥1.6-2.0g/cm³;

Plastic CastableAl2O3: ≥35-80%;
Bulk Density≥2.15-2.65g/cm³;

Steel Fiber CastableAl2O3: 70-83%;
Bending Strength: 9-12MPa;

$Refractory Gunning Mix$

Refractory Gunning MixAl2O3: 32-70%;
Max Temp: 1300-1600ºC;

Wear Resistant CastableAl2O3: ≥60-80%;
Bulk Density≥1.90-2.85g/cm³;

$Refractory-Precast$

Refractory PrecastAl2O3: 85-92%;
Bulk Density≥2.85-2.9g/cm³;

Leave a Message Send Email

Choose the Right High Temperature Castable Refractory

REBO supplies top-quality monolithic castable refractory in many types, with full customized ordering available simply message us or send your detailed drawings and requirements. We also offer a complete range of matching anchors to provide fully customized, end-to-end solutions for your project. If you wanna know the difference of castable type, see the following table.

Main Difference of Refractory Castable

Product Name	Main Material	Core Advantage	Typical Applications
High Alumina Castable	High-alumina bauxite aggregate	Moderate cost, highly versatile, high refractoriness	General heating furnaces, hot blast stoves, mid-to-low temperature furnace linings
Low Cement Castable	Low-cement technology (CaO < 2.5%)	High density, high strength, wear resistance, excellent thermal shock resistance	Kiln hoods, front safety zones, main linings of large industrial furnaces
Corundum Refractory Castable	Corundum-based (Al₂O₃ > 90%)	Extremely high refractoriness, high hardness, strong slag resistance	Steel ladles, torpedo cars, high-temperature reactors
Mullite Refractory Castable	Mullite-based (3Al₂O₃·2SiO₂)	High thermal shock stability, low creep, high temperature strength	Kiln cars, heating furnace roofs, high-temperature kiln linings
Silicon Carbide Castable	Silicon carbide aggregate	High thermal conductivity, strong slag resistance, excellent anti-coating properties	Calcining furnaces in cement kilns, waste incinerators, iron runners
Acid Resistant Castable	Acid-resistant binder + Acid-resistant aggregate	Superior resistance to acid gas and liquid corrosion	Chemical chimneys, pickling tanks, desulfurization towers
Plastic Castable	Paste-like / Plastic clay formulation	High flexibility, strong bonding strength, spalling resistance	Boiler water walls, complex/irregular shapes, furnace patching
Steel Fiber Castable	Reinforced with heat-resistant steel fibers	Superior thermal shock resistance, tough spalling resistance, high impact resistance	Furnace door frames, tapping spouts, kiln mouths subject to severe impacts
Refractory Gunning Mix	Specially formulated fine-grain spray mix	Fast installation, no shuttering required, suitable for hot/cold repair	Daily maintenance and large-area repairs for various industrial kilns
Wear-Resistant Castable	Dense wear-resistant aggregate	Extremely high hardness, resistant to high-velocity airflow and material erosion	Circulating Fluidized Bed (CFB) boilers, cyclone separators
Refractory Precast	Factory-cast and pre-baked blocks	Consistent quality, eliminates on-site baking, extremely efficient installation	Roof arches, iron runners, complex custom shapes

Leave a Message Send Email

Customizable Packaging & Fast Delivery of Furnace Castable Refractory

Key Specifications & Features
Service Temperature: 800–1800°C (Varies depending on raw material compositions, such as high alumina, corundum, mullite, or silicon carbide).
Installation Method: Suitable for casting, vibrating, ramming, or gunning applications.
Quality Assurance: Strictly controlled raw materials and micro-powder bonding systems ensure high density and prolonged service life.
Packaging Options & Customization
25kg Bags: Moisture-resistant paper/plastic composite bags, easy for manual handling and field mixing.
1-Ton Jumbo Bags (FIBC): Equipped with lifting loops, ideal for bulk shipment and fast mechanical handling.
Custom Packaging (OEM/ODM): Custom bag designs available. We support printing your Company Logo, Brand Marks, and Shipping Marks according to your requirements.
Delivery Time
Lead Time: 7 to 30 days (Depending on order volume, customization requirements, and production scheduling).

Cases of REBO Refractory Casting Castable

Backed by a robust annual capacity of 280,000 tons and advanced chemical formulation capabilities, REBO delivers engineered security to over 50 countries, Now REBO is an approved realible refractory castable manufacturer for international EPC projects and global leading companies.

$High Alumina Refractory Bricks for Steel industry$ $High Alumina Refractory Bricks for Steel industry$ $High Alumina Refractory Bricks for Steel industry$ $High Alumina Refractory Bricks for teel industry$

REBO Support for RUSAL Project

RUSAL is one of the world’s largest aluminum producers and a global leader in low-carbon aluminum production. As a major player in heavy industry and non-ferrous metallurgy, RUSAL maintains rigorous international standards regarding the operational uptime, energy efficiency, and safety of the core kilns in its production lines. REBO is proud to have provided a comprehensive, one-stop solution—encompassing R&D, manufacturing, and delivery—for all the refractory bricks and monolithic refractories used in this project’s kilns. We currently conduct regular on-site visits to the client.

UAE Cement Rotary Kiln Retrofit

These cement clinker production lines, with a capacity of 6,000 tonnes per day (TPD), are subject to severe alkali-sulfur attack and intense thermal cycling. To achieve seamless sealing and prevent localized spalling, the project utilizes large quantities of high-permeability-resistant high-alumina castables and high-strength, wear-resistant castables as replacements for traditional refractory bricks.

High Alumina Bricks for Glass & Ceramics

Waste-to-Energy Incinerator Project in Brazils

Waste incineration generates significant amounts of highly corrosive chloride and alkali metal gases. To protect the water-cooled wall tubes, the interior of the furnace is extensively lined with silicon carbide (SiC)-based ramming mixes and gunning/casting materials, selected for the high thermal conductivity and superior resistance to chemical attack. Learn more cases on REBO Faceboook.

Serving Industries

Steel & Metallurgy Industries

Steel Plants & Small Steel Mills: Used for ladle linings, runners, launders, permanent linings, hearth/furnace bottom paving, and stirrers.
Non-Ferrous Metals (Aluminum Industry): Applied in aluminum melting furnaces, including furnace doors, burner sidewalls, and discharge/tapping devices.

Cement Industry

Preheater (PH) Systems: Used in lower preheater sections (kiln inlet, calciner throat, bottom cyclone cones, chutes, etc.).
Static Equipment: Applied in static parts across preheaters and clinker coolers.
Alkaline Zones: Used in Upper Transition Zones (UTZ), Burning Zones (BZ), Lower Transition Zones (LTZ), and Cooling Zones.

Energy, Oil & Gas Industries

Boilers: Specialized castable refractory mix designed for steam boilers and power generation units.
Petrochemical Sector: Tailored refractory solutions for oil, natural gas, and related process plants.

Refractory System Integration

Comprehensive System Design: Engineered to work seamlessly alongside refractory bricks and other insulating materials.
In-House Quality Control: Backed by an in-house laboratory for continuous R&D, strict testing, and quality assurance.

Pourable Refractory Castable Factory Strength

Wholesale Pricing

Strategically located in a core refractory production hub, REBO refractory utilizes intelligent manufacturing to significantly reduce production and labor costs. This enables us to offer highly competitive quotes for bulk orders and tender projects without compromising quality.

Annual Capacity

REBO boasts an annual refractory production capacity exceeding 150,000 tons, featuring automated production lines dedicated to monolithic refractories (such as castables, plastics, and ramming mixes). We ensure rapid response to orders and meet tight schedules for urgent kiln maintenance.

Extensive Project Experience

We offer more than just materials; we provide field-proven solutions. Over 60+ countries apply REBO castables worldwide, which earns the trust of numerous Fortune 500 industrial giants.

High Standards

Our facilities are fully certified to ISO 9001, ISO 14001, and ISO 45001 standards. All raw materials undergo rigorous physicochemical testing prior to production, ensuring full alignment with international standards.

Reasons for Using Refractory Castable in Refractory Lining

In high temperasture industries, the transition from traditional fire brick masonry to castable refractory materials, monolithic refractory cement and other linings represents a massive leap in operational efficiency and structural integrity. Global heavy industries increasingly specify castables for the furnace linings .

$Refractory-Castable-Kiln-Structure$

Perfect for Complex Kiln Structures

Castables are unshaped refractory materials characterized by exceptional fluidity and plasticity. During installation, one simply needs to erect a mold of the required shape, pour in the castable, and vibrate it to ensure compaction. It then cures perfectly into any complex, monolithic structure, achieving seamless coverage.

Seamless Kiln Lining

During high-temperature kiln operations, brick joints often represent the most critical weak points in the lining. Dense refractory castable materials are installed via monolithic casting, forming a continuous, joint-free lining upon curing that vastly improves the lining’s impermeability and sealing performance.

$Thermal-Stress-for-Refractory-Castable$

Mitigation of Thermal Stress

Once cured, the castable bonds firmly with the kiln’s steel shell to form an integrated unit. This structure boasts high mechanical strength, excellent impact resistance, and superior wear and thermal shock resistance, enabling it to withstand the long-term wear and tear of harsh operating conditions.

Leave a Message Send Email

Easy to Use REBO Refractory Castable

From raw material sourcing to final delivery, every REBO brick is built to perform in the most demanding high-temperature environments. As high alumina fire bricks manufacturers, REBO has strong manufacturing, design, and solution capacity.

Easy to Mix and Cast

Strictly adhere to REBO installation instructions regarding water addition and mixing time. Ideally, the mixed castable should be used within 30 minutes. Please refer to REBO installation guidelines for high temperature castable refractory and furnace lining bricks.

Easy to Use

Curing and dry-out are critical stages that determine the castable’s final physical properties. After installation, the material must harden under ambient conditions to allow for moisture release. REBO provides strict guidelines for controlling the heating-up process to ensure optimal lining performance.

FAQs of REBO Refractory Castable for Sale

Q: How Do You Guarantee the Chemical and Physical Performance Consistency?

A: REBO operates under strict ISO 9001:2015 quality standards. Every single batch of raw materials (bauxite, corundum, and specialized binders) undergoes rigorous lab testing before entering production. Our automated, computer-controlled batching system eliminates human error, guaranteeing that the chemical composition and physical properties perfectly match the Technical Data Sheet (TDS) for every shipment.

Q: Can You Customize the Refractory Castable Formula?

A: Yes, absolutely. Backed by a technical director and a team of engineers with 40+ years of industry experience, REBO specialises in custom formulations. Whether you need Low-Cement Castables (LCC) for high-strength requirements, Steel-Fibre Reinforced Castables for severe impact zones or Anti-Flaking Castables for high-alkali cement kilns, REBO can adjust the recipe to perfectly match your operating temperatures and chemical environments. The castable refractory density and castable refractory composition are influenced by the formula.

Q: How Are Your Refractory Castable Products Packaged to Prevent Damage During Sea Transit?

A: REBO implements a high international standard seaworthy packaging system. The dense castable refractory 1700c are packed in heavy-duty, moisture-proof 25kg or 50kg multi-layer paper bags (or 1-ton big bags). Then they are securely stacked on strong, fumigated wooden pallets, tightly wrapped with heavy-duty stretch film, and strapped to ensure they remain completely dry and intact throughout long-distance maritime transport.

Q: Why Is Controlling the Water-Addition Ratio so Critical During Onsite Mixing?

A: Water addition directly determines the ultimate density, porosity, and strength of the cured castable lining. We always recommend sticking strictly to the ratio specified on our TDS (typically 5% to 8% by weight). Adding too much water may improve flowability temporarily, but it creates large voids after evaporation, which severely reduces mechanical strength and slag-erosion resistance.

Q: Do You Provide Baking Curves or On-site Technical Installation Guidance?

A: Yes. Proper baking is crucial to prevent the lining from cracking or exploding. For every project, we provide a customized Dry-out (Baking) Curve tailored to the lining thickness and castable type. For large-scale international projects, we also provide remote video technical support or dispatch experienced engineers onsite to supervise the mixing, pouring, and baking processes.

Q: Do You Provide Baking Curves or On-site Technical Installation Guidance?

Q: Can You Share Some of Your High-Profile Global Project Experiences?

A: Our refractory castables have been successfully deployed in over 60 countries across the globe. One of our most notable classical achievements is the full-kiln project for RUSAL (Russian Aluminium), where we delivered a complete package of custom refractory bricks and high-performance castables for their smelting furnaces. We also regularly serve top-tier conglomerates in the cement, steel, chemical, and CFB power industries throughout Southeast Asia, the Middle East, and Europe.

Q: What is Refractory Castable Price?

A: The price of castable refractories depends on the alumina content, temperature rating, and order quantity. REBO, as castable refractory supplier and manufacturer, provides competitive factory price. Contact us with your specifications for an accurate quote.