RSV series convection reflow soldering ovens include vacuum to reduce voids to fewer than 1%. Come in five or six heating zone versions, each with one vacuum zone and two cooling zones. Footprint is 5,070mm up to 6,229mm. Handle PCBs from 100 x 150mm up to 330 x 250mm. Large flux collection unit is said to reduce flux cleanings to a few times per year.
Eightech Tectron, www.eightech.com