at the plywood mill we use heated press plates. the time for pressing is usually around the 4 minute mark for a load i belive, depends what we are making(3/8, 3/4, etc). and how fast they try and run the lay up line.
our glue gets made in the mill. we get a 53' tanker or resin delivered every day. and mix the soda ash and other great **** in house. they test for viscosity. and it changes accordingly. i cant speak for the lvl. i can speak for the industry i guess. i would assume that glue is most likely made there. and adjusted accordingly.
i guess i could ask the glue mixer at work what exactly is in the glue. haha. i never cared enough.
so ya, our press does sheets of 3/4" SPF in around 4 minutes ish(like i said, dont pay attention much to that, i work on the drying the veneer side, not glueing it into panels). thats 32 or 34 sheets at a time though. 2 presses
Edmonton, AB, Canada