1809 MK7 Reflow Oven System The 1809 MK7 is a reflow oven with 9 heated zones and conveyor speeds of up to 1.88m/min suitable for medium and high volume applications. …Cool Zones 2 Top (Bottom Option) Max Working Temperature Standard: 350°C (Option: 400°C) Maximum PCB Width 55.9cm (22”) Cleanroom Option Down to Class 1000 MK7 Reflow Oven Main Page