What is Rotary vane dry vacuum pumps？

When the rotor rotates, the vanes slide outward due to centrifugal force and rotate while contacting the cylinder. In the space surrounded by the cylinder, rotor, and vanes, as the rotor rotates, the gas sucked from the intake port is compressed and discharged from the exhaust port.

Features of Rotary vane dry vacuum pumps

This type of pump is a mechanical vacuum pump that transfers gas by the reciprocating motion of a piston interlocking with an eccentric rotating shaft. Since this is an oil-less pump, backflow of air through the sliding part between the cylinder and piston ring is unavoidable.
Because of its simple structure, this pump has low ultimate pressure. However, it can obtain stable pressure in a low vacuum region.

Strength: The pump has a large pumping speed in low vacuum range
Weakness: Vane abrasion powder is generated. The sound is loud and generates a lot of heat.

Applications

The pump is widely used in printed board mounting equipment, vacuum packaging machines, material adsorption transfer equipment, labeling machines, printing ink degassing machines, printing machines, photograph plate making machines, screen printing machines, degassing machines, burying machines, baking furnaces, suction machines, automobile exhaust gas analyzers, refrigerant recovery device, plasma cutting equipment.