Test bed press made out of recycled parts and one new 12 ton Air Hydraulic Bottle Jack.
http://www.harborfreight.com/12-ton-air-hydraulic-bottle-jack-94487.html
Compresses from 6 x 6 x 12 to 3 x 6 x 12. First test run produced 3 blocks in about 6 minutes. Should be able to press out 250-300 per day.
آی-ویدئو