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Direct Transfer Pumps or Material Transfer Vacuum Pumps, are versatile often used to convey small parts from an assembly station at lower costs

Material transfer vacuum pumps (direct transfer pumps) use high velocity compressed air to generate a vacuum in the inlet of a smooth bore, tubular body to draw in bulk dry goods and then convey them in a turbulent air stream through a hose attached to the discharge end of the pump. Plastic pellets, powders, beans, peas, sawdust, and continuous fabric trimmings are only a few examples of the numerous items than can be transferred.

Direct Transfer Pump Features are Versatile

Material transfer vacuum pumps are versatile and can also be used to convey small parts from an assembly station at a much lower cost than pick and place devices. Select a pump inner diameter that is a little larger than the outer diameter of the part you wish to transfer. Generous bends in the discharge hose should allow for free passage. For longer parts, select a pump (and discharge hose) diameter large enough to pass the part diameter but not large enough for the part length. This method will eliminate end-over-end tumbling that can damage parts. At the hose discharge end, direct the parts against a hanging curtain or foam rubber for deceleration.

Vacuum Flow and Material Transfer Rate Made Easy

With material transfer vacuum pumps, vacuum flow rate and material transfer rate are easily controlled by simply changing the compressed air supply pressure. Higher air pressure increases the transfer rate. When shutting the pump off, it is good practice to let the pump blow air for a long enough period to allow all parts in the discharge hose to exit.
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