The present invention relates to a point feeder for feeding additives such as aluminium oxide or fluoride to aluminium electrolysis cells. In a feeder for feeding additives such as aluminium oxide or fluoride to aluminium electrolysis cells, the additives are fed to the electrolytic bath of the cell through a hole in the bath crust via a pipe stub. The hole is made by means of a crust breaker having a crow bar connected to a piston/cylinder device. The point feeder is made of a housing comprising an upper part, wholly or partly open to the surroundings, and a lower part closed the crust and other parts of the surroundings. The crow bar extends down through a guide in the form of a bushing, which is provided between the upper and lower part. Further, the pipe is attached to the lower part, or is provided under the lower part, for instance on the gas apron of the anode casing in a Soederberg cell.

The brushless capacity of the point feeder manufactured by Joda technology is a new product developed based on a brush under the fixed capacity. It solved the problem of the before feeder. Joda company's constant capacity in the electrolysis process to achieve regular, quantitative automatic feeding. Particularly suitable for light and high viscosity fluorinated salts. Fixed capacity of the amount of 1.6kg, or 1.8kg, of course, can also customize the capacity to meet the different needs of different users.

The Advantages of our point feeder:
    Strong hardness
    Long service life
    Good permeability
    High temperature resistance