The engineered solution for lining a furnace comprises four steps. The entire furnace bottom is vibrated in one operation from the furnace deck using the vibrator plate equipped with electric vibrators. No worker enters the confined space of the furnace to hand ram the floor material. The furnace form is then set in place using form centering tools. The InstaCentr Tools quickly and accurately centre the furnace form, for the full length of the furnace which is critical to ensure equal spacing between the form and furnace wall.

Once the furnace form is placed and centred, the Refractory Installation System is placed on top of the free- standing form and filled with bulk bags of refractory.The machine is engaged and rotates around the form distributing two-inch layers of material while simultaneously forking the material. As a result, very little dust is emitted during the filling of the sidewalls.The process is continued until the sidewalls are full.The final step is vibrating the internal sidewalls using a three-legged electric vibration system. Vibration time is concentrated in the tapered section to reduce or eliminate “elephant’s foot”erosion.

Foundries are obtaining dramatic improvements and cost savings using the system; not just environmental improvements for worker
safety and health.

When Gradmatic founder AJ Grady passed away in 2019, Mary Grady, business partner and wife took on the lead. In 2023, Gradmatic reorganized with Nick Grady as President. Two generations of family members have joined the company to continue the family-owned and operated tradition.

Gradmatic can build systems for furnaces as small as 1-ton and as large as 85-tons and above. Many systems have the ability to line multiple sizes of furnaces.