The oil-free air compressor usually does not require refueling during normal operation because it uses oil-free water lubrication technology, mainly using pure water for lubrication, rather than traditional lubricating oil. This technology enables an oil-free air compressor to generate oil-free compressed air. However, in some special cases, it may be necessary to add lubricating oil […]

The main differences between the cold dryer and the suction dryer are reflected in the following aspects: Working principle: The cold dryer is based on the principle of refrigeration and dehumidification, and cools the saturated compressed air from the upstream to a certain dew point temperature through heat exchange with the refrigerant, condenses a large […]

The main methods of filtering water by air compressors are as follows: Hot and cold interaction method: The hotter compressed air can be cooled, so that the moisture in the air can be condensed, thereby achieving the purpose of filtering water. Set up a drain valve: Set up a drain valve at the sewage outlet […]

The measurement methods for oil content in oil-free air compressors mainly include the following: Weight method: This is a method to directly measure the oil content in the exhaust gas. Its oil content is measured by collecting a certain volume of exhaust gas samples and using a weight analyzer and other equipment. This method can […]

Air compressors can be divided into various types according to their working principle, structural characteristics and application needs. Here are some common categories of air compressors: Pistol of piston air compressors: Working principle: Complete the compression process through up and down movement of the piston. Features: Simple structure, stable and reliable, suitable for small and […]

The calculation of the gas volume and pressure of compressed air in the air compressor involves many aspects. The following is a clear and partial summary: 1. Determination of gas volume Traditional method: Add the gas volume (m³/min) of all gas-using equipment. Consider adding a safety, leakage and development coefficient. Test method: Perform a timed […]

There are differences between fixed frequency and non-fixed frequency (converter). There are significant differences in the working principle, operation mode, energy consumption, stability, noise and vibration, cost, and applicable scenarios. 1. Working principle and operation mode Fixed frequency screw unit: Working principle: Gas compression is achieved through the rotational movement of a pair of spiral-shaped […]

The air compressor has water in the air outlet, and replacing the filter element is a feasible solution. The reasons why there is water in the air compressor’s air outlet may include: The moisture content in the air is too high: the moisture in the air will condense into liquid water during the compression process. […]

Oil-free and water-free air compressors mainly achieve lubrication through the following methods: Dry lubrication: Principle: Coat a special layer of solid lubricating materials on the surface of key components inside the compressor, such as polytetrafluoroethylene (PTFE), etc. Features: These solid lubricating materials have excellent high temperature and wear resistance, which can reduce energy consumption and […]

When choosing an air compressor, the scroll air compressor and the screw air compressor have their own advantages and disadvantages. Which one is better depends on the specific application requirements and scenarios. Advantages of vortex air compressor: Simple structure and stable operation: The vortex air compressor has no reciprocating mechanism, few parts, especially few consumable […]