2026-04-10Views:
How to choose between "power frequency air compressor" and "variable frequency air compressor?
When you need "oil-free air compressor" to provide "oil-free air" for enterprise production, you will fall into a difficult problem of choice. So many types and brands of "oil-free air compressor" are dazzling.
We can look at the difference between "power frequency air compressor" and "frequency conversion air compressor" to decide how to choose and purchase. If you need "water lubricated air compressor" or "oil free air compressor" may wish to contact us "Shanghai granklin group".
1. pressure stability:
the variable frequency screw air compressor uses the stepless speed regulation characteristics of the frequency converter, and can start smoothly through the controller or the PID regulator inside the frequency converter. For occasions with large fluctuations in gas consumption, it can quickly adjust the response;
2. start without impact:
the inverter itself contains the function of a soft starter. The maximum starting current is within 1.2 times of the rated current, while the power frequency starting is generally more than 6 times of the rated current, and the starting impact is very small. This impact is not only on the power grid, but also on the entire mechanical system.
3. variable flow control:
the frequency converter is based on the actual gas consumption to adjust the motor speed in real time to control the displacement. Therefore, the variable frequency air compressor can work in a relatively wide range of exhaust volume.
4. AC power supply voltage adaptability is better:
1. Due to the over-modulation technology adopted by the frequency converter, sufficient torque can still be output when the AC power supply voltage is slightly lower to drive the motor to work; when the voltage is slightly higher, it will not cause the voltage output to the motor to be on the high side;
2. For self-generating occasions, variable frequency drive can show its advantages;
3. According to the characteristics of the motor VF (the variable frequency air compressor works below the rated voltage in the energy-saving state), the effect is obvious for the field with low grid voltage.
Low 5. noise:
most of the working conditions of the frequency conversion system are lower than the rated speed, the main machine mechanical noise and wear are reduced, and the maintenance and service life are extended;

The possible causes and inspection methods that lead to the vibration of the screw air compressor, it is necessary to pay attention to this vibration phenomenon when using the screw air compressor, and find and solve the problem in time. Let the screw air compressor supply compressed air for you better and more stable.
As a completely market-oriented industry, China's screw air compressor enterprises have experienced several rounds of ups and downs, some star enterprises "flash in the pan" out of the market.
How long the air compressor can generally work continuously depends on a variety of factors, including the type of air compressor, the use of the environment, maintenance and load conditions. From the perspective of air compressor types, common piston air compressors are usually not suitable for long periods of time due to structural characteristics.
The safety technical operation specifications for air compressors are as follows: 1. The equipment must be specially assigned and certified. 2, to follow the air compressor safety operation procedures. 3, must be familiar with the structure of the air compressor, principle and performance. 4. Operation
In the case of permanent magnet variable frequency screw air compressor which is good to use (commonly used single-stage compression screw machine), the permanent magnet variable frequency air compressor is often unfamiliar with the equipment of permanent magnet variable frequency air compressor and does not know what brand of permanent magnet variable frequency compressor to choose.
The "water-lubricated screw machine" produced by Shanghai Granklin Group has the characteristics of simple maintenance and low maintenance cost. Routine maintenance only need to replace the "water lubricated screw machine air filter", "water lubricated screw machine water filter", the normal maintenance of the case only need to replace the two "water lubricated screw machine filter.
If the permanent magnet air compressor condensate is not discharged for a long time, it will cause rust inside the unit, reduce the effect of lubricating oil, and affect the operation of the air compressor. In summer, it will even cause the air compressor to start and stop constantly. So what is the basic principle of this air compressor?
A large amount of data shows that the main cost of the compressed air system is spent on the operation link, and in its life cycle, the operating cost (electricity) accounts for 78-92%. Therefore, how to tap the potential of energy consumption and improve the efficiency of energy use through fine management is the key to every enterprise.
Granklin sales of air compressor use the scene is very much, the most common is a variety of air gun tire repair, but the role of air compressor is not only so there are more application scenarios. The role of air compressor.
Water lubricated air compressor manufacturers looking for granklin group, your choice will not be wrong. Our granklin group has been deeply developing water-lubricated air compressor technology and has a number of patents. If you are interested, you can also visit our group headquarters.
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