Dross production calculations

75 % of solder thrown away as dross!!

Hard to believe isn't it.

In our experience companies vary rarely receive full credit for solder dross and therefore, do not know how much they produce unless they weigh it themselves. It is in the interests of the solder producers to manipulate the credit price and volume of the dross produced in order to appear to give the "best available deal". The only argument that is consistent is the amount spent on Solder on a monthly/yearly basis.

Once the EVS machine is in place you can calculate the amount of dross being produced from the savings being made as follows:

% dross made x % solder recovered from dross = % reduction in solder purchased.

Therefore

% dross made = % reduction in solder purchased / % solder recovered from dross.

The following are three real customer examples showing just how much dross is produced:

Example 1: Ericsson

% reduction in solder purchased = 50%
% solder recovered from dross = 59%

=> % dross made = 50% / 59% = 85%

Example 2: Mars Electronics

% reduction in solder purchased = 50%
% solder recovered from dross = 60%

=> % dross made = 50% / 60% = 83%

Example 3: AB Automotive Electronics Ltd

Pre EVS solder usage per month = 1300 kg
Pre EVS dross production per month = 990 kg

=> % dross made = 76%

With so much Dross calculate what you could be saving ...