Vacuum conveyors

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Vacuum technology company Piab has been developing USDA vacuum conveyors, and claims the PIAB C33 is the first vacuum conveyor to satisfy the requirements of the US Department of Agriculture (USDA).

The conveyors, available in varying sizes, are developed to meet the same criteria and every component is approved by the USDA.

The conveyors, which are of modular construction, can be adapted to meet the user's needs. They are manufactured using ASTM 316L, a special grade of steel used in the foodstuffs and pharmaceuticals industries.

The filter in the conveyors can trap particles as small as 0.5 µm, and where necessary the conveyor can also be equipped with a HEPA (high-efficiency particulate air) filter.

The conveyors are designed so that they are easy to install and easy to disassemble for cleaning. Because there are few moving parts in the conveyors, they require minimal maintenance and few replacement parts.

The heart of the system is Piab's quiet pneumatic vacuum pump. When the first conveyor was introduced four years ago, the company reported that its design improved capacity by 25% without affecting energy consumption.

The conveyors have diameters of 21 and 56 cm and supplement the previous 33 cm diameter design.