Ramming Mass
Ramming Mass is a granular, unshaped refractory material applied by mechanical ramming — using pneumatic or manual tools — to form a dense, seamless furnace lining. It is the preferred lining method for induction furnaces, arc furnaces, and coreless foundry furnaces globally, valued for its ability to conform perfectly to the furnace shell geometry while achieving very high post-sinter density. Imperial World Trade supplies a comprehensive range of ramming masses covering all chemical systems — silica, alumina, magnesia, and chrome-based — to match every melt shop requirement.
- Silica-Based: High-purity SiO₂ formulation for cast iron and carbon steel melting in induction furnaces; excellent acidic slag resistance.
- Alumina-Based: Mid-range chemical resistance for steel and non-ferrous alloy applications at moderate to high temperatures.
- Magnesite-Based: Superior basic slag resistance for high-alloy and stainless steel grades; preferred for arc furnace hearths.
- Controlled Grain Size: Specific grading curves ensure maximum ramming density and minimal residual porosity.
- Sintering Additives: Carefully selected binders facilitate rapid, uniform sintering during the first heat cycle.
- Extended Lining Life: Optimized chemistry and density translate directly into more heats per campaign.
Imperial World Trade’s ramming masses are tested for grain size distribution, chemical composition, and sintering behaviour before dispatch, ensuring your lining performs from the very first heat.
