The boards used in cassette units machines have special mountings for a replaceable working surfaces. To obtain symmetric conjunctions there are special rubber seals along the perimeter of the board.
For manufacturing attic precast concrete panels’ with sloping upper face the special sets of magnetic wedges are usually used in cassette units. They allow putting the top face of the product in a horizontal position. It facilitates the manufacturing process greatly.
Magnetic wedges of appropriate thickness height and slope of the forming surface are applied in dependence on the size of the forming products.
To prevent displacement, each magnetic wedge is equipped with a magnetic boxes. They provide a reliable fixation of the magnetic wedge during the pouring and solidification of concrete, as well as easy demounting when deforming.
Each magnetic wedge has mounting locations for eye-bolts for being moved by the crane. On the surfaces interacting with concrete, the carving holes are closed by screw plugs.
In manufacturing products with parallel faces when the free adjustment of the lower sides of cassette units machine is impossible, it is rational to apply a magnetic shelf. The magnetic shelves allow you to raise the bottom face of the forming product within the section of the cassette unitы machine upto the required level, without changing the boards.
Here are some examples of concrete products made with the use of magnetic wedges and magnetic shelves..
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