1190lbs of mixed Peripheral boards

[resabed01]

Id like to see that too. It would sure beat the air chisel I use now. It's too labor intensive and somewhat slow.
With a hydraulic shear I could clean a box of motherboards in a few minutes instead of hours.

Question; Do the boards ever get stuck between the bar and blade?


Scott, If you're having trouble posting pictures, I'll help you out.... send me a PM

 

[johnny309]

Have a question....I have done some research...not sure if all the PCB producers use the same process,but the copper trace an a PCB is 30-40 uM bonded with a "glue"(except for computer boards and cellphone boards...5 layers...another story)....so the question is:
Etching the copper trace or just dissolve the "glue"?

Second question......:
Most boards are fiber glass ....so...when you burn some stuff like this.....your waste stream is big....and have to deal with C and Si...and precious metals...not to mention the high temperature that you will have to achive(cost of energy).....in the process you will loose TIN(3xcooper price....and more much present on a board than copper,as weight)......

P.S.: People tend to dispose all the thing they do not need....think twice...if you ever have the guts to work a complete shift in a mine 2 Km below earth surface just for 10 Kg of copper ......do not go only for gold,silver.....go for clean water......you can put poison(copper salts damage plants)in your house....just for the sake of a few dollars.

 

[lunker]

With regards to the shear, I'll dig it out and get my wife to post some pics. I'm better at destroying technology rather than using it. As for the air chisel. I use a steel table that's on a decline. Welded a small piece of angle iron to hold the board and have a floor vent elbow at the bottom to divert the falling parts into a 5 gallon pail. I then start w all the boards and go through removing just one type of component That way you have just say flat pack or chips in the pail. Instead of a mixed mess you have to sort later.
I also read that acetone was once used to dissolve the fibreglass resin. Think it would be messy toxic and very flammable option. Also believe it's very carcinogenic.