Well–prepared sand can only result from the optimal mixing together of sand, water, bentonite, and other additives. Every grain of sand must be surrounded by bentonite.
The advantages of the Webac Sandmixer are:
- the effective dosing of additives
- optimum dosing of water via the abrasive base
- addition of the additives (bentonite, coal dust, new sand etc.) by injection of binders into the sand bed
- gentle handling of the sand grains through a kneading action
By applying a rubber coating as a lining for the mixer, and through the kneading action of the mixing wheels, which are also rubber-coated, an optimum coating of the sand grains with bentonite is achieved. This is an extremely protective type of preparation. The ploughs fixed to the crosshead ensure that the sand is mixed efficiently.