Dry ramming mass is composed of high-iron, high-calcium synthetic magnesia and fused magnesia as aggregates, with synthetic magnesia and fused magnesia as fine powders.
● Long...
Ramming Mass
Your Professional Ramming Mass Supplier！
Zinfon Refractory Technology Co.,Ltd is a comprehensive enterprise integrating R&D, design, production, sales, and service, and is one of the world's large-scale production bases for magnesium refractory materials. the products cover all kinds of alumina refractories, including: high alumina series, mullite series, siliceous series, phosphate series, lightweight heat preservation series and other stereotyped products; castables, self-flowing materials, malleable materials, prefabricated blocks and other non-stereotyped products, as well as all kinds of refractory raw materials and chemical products.
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![Dry Ramming Mass]()
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![Zirconium Corumdum Ramming Mass]()
Zirconium Corumdum Ramming MassZirconium corundum ramming mass uses fused AZS clinker as the refractory aggregate.read more
● High density and low porosity.
● Strong resistance to glass melt erosion.... -
![Magnesia Alumina Spinel Ramming Mass]()
Magnesia Alumina Spinel Ramming MassMagnesia alumina spinel ramming mass is a dry ramming material pre-mixed mainly with alumina and magnesia. It can be formed through ramming.read more
● Strong resistance to slag... -
![Magnesia Ramming Mass]()
Magnesia Ramming MassMagnesia ramming mass is an alkaline, amorphous refractory material primarily composed of fused magnesia or sintered magnesia as the aggregate, with added ultra-fine powders and chemical binders...read more
Why Choose Us
Rich Experience
With more than 20 years of experience, the company has its own R&D team and has supplied products to many traders.
Production Capacity
We have invested in two production lines equipped with 120-meter ultra-high-temperature tunnel kilns and a fully automatic crushing and grinding workshop for raw materials. With more than 100 employees, we achieve an annual output of 100,000 tons of various refractory products.
Our Qualification
We have passed through ISO9001, ISO14001, ISO45001 cerifications, as well as other national and local qualificaitons, such as Reliable Quality & Service Certification and Enterprises Credit Eveluation Cerfitification.
Ramming Mass - Overview
Ramming mass is a refractory material, typically a dense, moldable mixture of aggregates, binders, and additives, used to line the interiors of high-temperature industrial furnaces, particularly induction and electric arc furnaces. It gets its name from the installation method: it's compacted (rammed) into place to form a durable, heat-resistant lining.
Product Specification
We provide the following product specifications:
|
Material |
MgO |
Al2O3 |
CaO |
SiO2 |
Bulk Density |
Particle Size |
Max Working Temperature |
|
Quartz |
– |
– |
– |
98 |
1.9~2.2 |
0~6 |
1650 |
|
Magnesia |
≥96 |
＜1.5 |
– |
＜2 |
2.85~2.9 |
0~10 |
1800 |
|
Alumina Magnesia Spinel |
11~32 |
65~88 |
1 |
1 |
2.95~3.15 |
0~6 |
1800 |
|
Corundum |
– |
90 |
– |
– |
2.95~3.15 |
0~6 |
1800 |
|
Mullite |
– |
＞80 |
– |
＜16 |
2.6 |
0~6 |
1400 |
|
Magnesia Alumina Spinel |
75 |
22 |
– |
– |
3.05 |
0~6 |
1800 |
Types of Ramming Mass
Silica ramming mass
The main raw material of silica ramming material is silica. Silica is the general name for vein quartz, quartzite, and quartz sandstone. Mainly used in acid refractory bricks for the metallurgical industry. Pure silica can be made into quartz glass or refined single-crystal silicon. In the chemical industry, it is used to prepare silicon compounds and silicates, and can also be used as a filling in sulfuric acid towers.
Corundum ramming mass
Corundum ramming material is a bulk material made of corundum, silicon carbide, graphite, and electrically calcined anthracite as raw materials, mixed with a variety of ultrafine powder additives, and fused cement or composite resin as a binding agent. It is used to fill the gap between the furnace cooling equipment and the masonry or the filling material for the masonry leveling layer.
Magnesium ramming mass
Magnesia ramming material is a bulk material made of fused magnesia as raw material, mixed with a variety of ultra-fine powder additives, and fused cement or composite resin as a binding agent. It is used to fill the gap between the furnace cooling equipment and the masonry or the filling material for the masonry leveling layer.
Medium frequency furnace ramming mass
The medium-frequency induction furnace has an induction coil made of copper tubes wound around the outside of the furnace. The metal charge is placed in the furnace. When the alternating current passes through the induction coil, an alternating magnetic flux is generated in the coil. Through the closed metal charge, the furnace charge An induced current is generated within a certain depth on the surface, causing the charge to heat and melt.
Advantages of Ramming Mass
Improved Furnace Life
A uniform and dense lining created by ramming mass extends the life of your induction furnace and reduces the frequency of relining.
Better Thermal Efficiency
Good quality ramming mass minimizes heat loss and improves energy efficiency, leading to lower operational costs.
Enhanced Metal Quality
Impurities in low-grade ramming mass can contaminate molten metal. Trusted ramming mass suppliers provide materials with low impurities, helping maintain metal quality.
Reduced Downtime
A durable lining reduces maintenance shutdowns, increasing productivity and throughput.
Application of Ramming Mass
Steel Industry
In the steel industry,Refractory ramming mass is essential for lining induction furnaces and ladles. Acidic ramming mass, known for its high strength and wear resistance, is often used in steel production. It ensures the integrity of furnace linings during the intense heat and chemical reactions involved in steelmaking. Basic ramming mass is also widely utilized due to its superior slag resistance, helping to prolong the lifespan of the furnace.
Iron Industry
In iron foundries, our ramming masses are employed in the lining of cupolas and other melting equipment. Their ability to withstand high temperatures and resist corrosion makes them ideal for applications where molten iron is processed. The choice of ramming mass, whether acidic or basic, depends on the specific requirements of the casting process and the desired properties of the final product.
Non-Ferrous Metal Industry
Ramming mass is also utilized in the non-ferrous metal industry, particularly in the production of aluminum and copper. Neutral ramming masses are favored in these applications due to their excellent thermal stability and resistance to chemical attack. They provide effective lining solutions that enhance the performance and efficiency of melting furnaces, contributing to higher yields and better-quality metal products.
Other Applications
Beyond metals, our ramming mass finds applications in various high-temperature processes, including cement production, glass manufacturing, and waste incineration. Their ability to withstand harsh conditions and provide insulation makes them suitable for lining kilns, furnaces, and reactors in these industries.
Major Components
Aggregate (60%–80%)
Typically composed of high-melting-point minerals (e.g., magnesia, corundum, silicon carbide, graphite), aggregates provide structural strength and corrosion resistance.
Fine Powder
Fills the voids between aggregates to improve density. Commonly used materials include refractory clay and silica micro powder.
Binder (<5%)
Used in small amounts, typically dry or hydraulic binders (e.g., cement, phosphate, asphalt), which are solid at room temperature and form chemical bonds or promote sintering when heated.
Process of Ramming Mass
The various grains fractions are stored in bulk silos. Then the batching plant prepares a batch which consists of a mix of various grain fractions along with the requisite percentage of BORIC ACID as per the desired recipe. This batch is then mixed to a uniform consistency and packed in bags. The installed capacity of our crushing, sizing, and mixing plant is 200,000 MT per annum.
BORIC ACID is introduced in the ramming mass to provide adequate sintering without a marked
reduction in the refractoriness of the ramming mass. The production process of ramming mass involves the addition of 0.2 to 5.0% of Boric Acid, which enables the sintering of the crucible lining. Boric acid starts melting at 171 °C and separates to Boric oxide and water. This Boric oxide further reacts with the SiO2 in the Ramming mass at 440 °C and forming a borosilicate melt. This small percentage of melt formed binds the loose grains in the lining giving it strength. This is the mechanism of formation of a dense contact layer with molten metal and slag, which prevents the penetration of liquid metal into the lining and slows down impregnation of crucible material.
Customization Process
Customized dimensions and shapes
Customized Brick Shape: Provide Sample Sheets--Mold Opening & Quotation--Mold Opening & Sample Making--Bulk Production Quotation--Contract Signing--Bulk Production.
Delivery cycle and logistics
Sea freight, land freight. Determine the mode of transportation according to the needs. About 30 days, customized products delivery time depends on the actual situation.
Customized packaging
Customize your brand: Logo customization, custom fonts, taglines and messages for packaging, signage, websites or printed materials. Take your brand to the next level, contact us today to discuss your project!
Certifications
Package & Delivery
Package: Standard export package or Customized Package.
Delivery: By air express, by sea.
FAQ
As one of the most professional ramming mass manufacturers and suppliers in China, we're featured by quality products and low price. Please rest assured to buy bulk customized ramming mass from our factory. Contact us for sample.
ramming mass, Neutral ramming mass refractory, Zirconium Corumdum Castables