... cover according to procedures,then automatically finish vacuum, sealing, printing, cooling, exhaust the entire process.Main technical ... SpecificationsProduct Size (mm) 610 × 470 × 520 Ultimate vacuum (kpa) ≤ 1.0Vacuum chamber size (mm) 510 × 410 × 150 ... Vacuum pumping speed (M 3 / h) 10Heat-sealing effective size (mm) ...