BR VacuumOur main products include vacuum accessories, vacuum valves, non-standard vacuum customization, vacuum pumps, vacuum measurement, vacuum accessories, mass flow meters, and vacuum technology
View More+2025/07
A vacuum pump is any device that removes gas molecules from a sealed volume in order to leave behind a partial vacuum. First developed in the 17th century by Otto von Guericke, modern pumps are indispensable in laboratories, manufacturing, and high-technology industries.Main Types• Positive-displacement pumps (e.g., rotary vane, diaphragm, piston) physically expand and contract chambers to trap and expel gas.• Momentum-transfer pumps—diffusion and turbomolecular—use high-speed blades or vapor jets to impart kinetic energy to gas molecules, pushing them toward the exhaust.• Entrapment pumps such as cryopumps, ion pumps, and getter pumps condense or chemically bind gases without moving parts, achieving ultra-high vacua (<10⁻⁹ mbar).Key Performance Metrics• Ultimate pressure: the lowest achievable pressure under ideal conditions.• Pumping speed: volume flow rate at the inlet, typically expressed in m³ h⁻¹ or L s⁻¹.• Compression ratio: exhaust-to-inlet pressure ratio across the pump.App
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Vacuum pump units are devices that combine vacuum pumps with corresponding vacuum components based on their performance requirements. These units are characterized by their compact structure and convenient installation and use.Vacuum pumping units can be categorized into low-vacuum units, medium-vacuum units, high-vacuum units, ultra-high-vacuum units, and oil-free vacuum units. The name of a vacuum unit is typically determined by its main pump, such as diffusion pump units, molecular pump units, etc.Low-Vacuum Pumping UnitsLow-vacuum pumping units operate within a pressure range of approximately 1330–100 Pa. Their main features include high working pressure and large exhaust volume, although their pumping speed is lower than that of medium- and high-vacuum units. These units are commonly used for rough pumping of vacuum chambers, as well as in vacuum conveying, vacuum impregnation, vacuum filtration, vacuum drying, and vacuum degassing (such as steel melt treatment) processes where th
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A vacuum generator is a new, efficient, clean, economical, small vacuum component that uses a positive pressure source to generate negative pressure, which makes it very easy and convenient to obtain negative pressure in places with compressed air or in places where positive and negative pressure are required in a pneumatic system. Vacuum generators are widely used in industrial automation, machinery, electronics, packaging, printing, plastics and robots. The traditional use of vacuum generators is to cooperate with vacuum suction cups to adsorb and transport various materials, especially suitable for adsorbing fragile, soft and thin non-ferrous, non-metallic materials or spherical objects. In such applications, a common feature is that the required air extraction volume is small, the vacuum requirement is low and intermittent operation. The author believes that the analysis and study of the suction mechanism of the vacuum generator and the factors affecting its working performance hav
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In the past decade, several different types of dry vacuum pumps have been designed and produced, with significant differences in mechanical structure design.
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The main link closely related to vacuum science and aerospace technology comes from the simulation of space environment, because various spacecraft such as launch vehicles, artificial satellites, manned spacecraft, space stations, space probes, and space shuttles are all carried out in the natural vacuum of the universe during space flight.
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