Vacuum pressing is the most effective way to clamp veneering work and light weight laminations, providing an even and massive clamping pressure over the whole surface. By extracting the air from the vacuum bag and creating a vacuum, the full weight of atmospheric pressure bears down on the contents of the bag exerting an evenly distributed pressure of around 8.5 tons per m². These units use a top quality Becker dry running vane vacuum pump giving between 4 and 25m³ per hour developing 85% vacuum. A built in vacuum gauge gives a visual indication of performance whilst a heavy duty foot switch gives convenient control. An extra large capacity 2,500 x 1,300mm heavy duty 300 micron seamless vacuum bag is supplied as standard and will accommodate almost any project. The 16 and 25m³ units will run up to 4 bags simultaneously. A convenient storage box houses the pump unit. If you are laminating with a vacuum press it is only necessary to provide a one piece former as the vacuum bag will provide an even pressure as it moulds the timber into the shape of the former.