Dry Pump

A dry pump is a type of vacuum pump that operates without the need for lubricants (such as oil).

The primary advantage of dry pumps is that they prevent contaminants from being introduced into the vacuum system. This makes them particularly suitable for applications requiring high cleanliness standards, such as semiconductor manufacturing, optical thin film coating, and other high-tech industries.

Here are some key features and types of dry pumps:

Oil-free design – Dry pumps typically do not use oil, preventing oil vapor or particles from entering the vacuum system and helping to maintain vacuum purity.
Low contamination risk – By eliminating the need for lubricants, dry pumps minimize the risk of contamination in vacuum processes.
High reliability – Dry pumps generally have a longer lifespan and require less maintenance compared to lubricated vacuum pumps.
Broad applications – Dry pumps are widely used in semiconductor manufacturing, optics, solar energy, and other high-tech industries that demand stringent vacuum quality and process cleanliness.

Oil-Sealed Pump (Oil Pump)

Oil-sealed pumps have several characteristics that may vary depending on the pump type and application. Below are some common features of oil-sealed pumps:

Lubrication – Oil-sealed pumps use oil as a lubricant to reduce friction between internal moving parts, ensuring smooth operation.
Sealing – The lubricating oil also helps seal internal components, preventing gas or liquid leakage, especially in high-pressure or high-vacuum applications.
Cooling – Oil serves as a cooling medium, helping to dissipate heat and prevent overheating, particularly in high-power applications.
Extended lifespan – Proper lubrication extends the pump’s lifespan by reducing wear and the risk of mechanical failure.
Adsorption – In certain vacuum applications, oil can adsorb gas molecules, contributing to improved vacuum performance.
High performance – Some oil-sealed pumps excel in high-pressure, high-flow, and high-vacuum applications, delivering stable and reliable performance.

However, it is important to note that oil-sealed pumps also have drawbacks.
The primary concern is the potential introduction of oil molecules or particulates into the processed gas or liquid, which may be unacceptable in applications requiring high precision and cleanliness.

What are the pump categories?

Dry Pump

Oil-Sealed Pump (Oil Pump)