Air Cooling Compressor

Model: HD-VPM55, 55kw 75 hp air cooling compressor. pls feel free to contact us for inquiry. We can give you the best factory support.

55kw 75 hp air cooling compressor advantages:

1.Germany technology cooperation,high reliability.

2.Big air end with low rpm for better performance an long lifespan.

3.High reliabity components.

4.CE level protection design and manufacturing.

5.Oversize cooler suitable for tropical area.

6.More than 10000.00 units running around the world since 10 years ago.

7.Intelligent PLC control.

8.Easy to do maintenance and service.

55kw 75 hp air cooling compressor, direct driven type.

Screw air compressor teach you how to choose? Belt drive or direct driven?

Swing type air compressor direct coupling type refers to the motor spindle through the coupling and gearbox speed to drive the rotor, which is actually not a true sense of direct transmission. A true direct drive is one in which the motor and rotor are connected directly (coaxial) at the same speed. Such cases are obviously rare. So the idea that direct transmission has no energy loss is wrong. Only 1:1 direct connection is the true sense of direct connection! Belt drive This type of drive allows different diameters of pulleys to be used to change the speed of the rotor. The belt-drive system discussed below is an automated system representing the latest technology that meets the following conditions: the belt tension is optimized at each operating state. By avoiding excessive starting tension, the working life of the belt is greatly extended and the load of the motor and rotor bearing is reduced. Always ensure the correct pulley connection. Replacing the belt is easy and quick and requires no adjustment to the original Settings. The whole belt drive system operates safely and without trouble. It is worth mentioning that the manufacturers who advocate direct gear drive also use belt drive for some of their products.

The following direct type and transmission type a few aspects to do a specific comparison. Excellent gear transmission efficiency can reach 98%-99%, and excellent belt transmission design can also reach 99% efficiency under normal working conditions. The difference between the two does not depend on the choice of transmission mode, but on the manufacturer's design and manufacturing level. Sometimes due to changes in customer production process conditions, the original purchase of the design of air compressor pressure may be too high or too low, hope to be able to change, but for gear transmission of air compressor, this work is very difficult and expensive, and for the belt transmission type air compressor, it is easy, simply replace the pulley. For the geared air compressor, due to the rigid connection between the motor and the rotor, the vibration of the rotor in the compression chamber will be transferred to the gear box and the motor bearing, which not only increases the wear of the motor bearing, but also increases the noise of the machine. Usually the working pressure required by the user is not exactly the same as that of the manufacturer's standard model. For example, the operating pressure required by the user is 10 bar, and the working pressure of the air compressor may be 11 or 11.5 bar depending on the condition of the post-processing equipment, the length of the pipe and the sealing degree. In this case, an air compressor with a rated pressure of 13 bar will normally be installed and the outlet pressure set at the site to the required working pressure. The displacement is basically unchanged, because ultimately work pressure, although reduced the speed of the rotor has not raised on behalf of the modern technology of belt transmission design manufacturers simply change the diameter of the pulley and working pressure can be designed in accordance with user requirements completely, so that users with the power of the motor is more air volume can be obtained. For gears, this is not so convenient.

Experienced practical users know that the gearbox will be the first to suffer in a loss of oil. The belt drive system does not have such safety problems at all. For the geared air compressor, when the motor or rotor bearing is damaged, it will often cause direct and indirect damage to the connected important parts. This situation does not exist for belt-driven air compressors. Any screw air compressor uses an annular shaft seal, which needs to be replaced to a certain life. For the geared air compressor, the motor and coupling must be separated first to get close to the shaft seal, which makes this work time-consuming and labors, thus increasing the maintenance cost. For belt-driven air compressors, just remove the pulley first, which is much easier. When the rotor bearing needs to be replaced, for the geared air compressor, the gearbox and the gearbox spindle bearing need to be overhauled at the same time, the cost is unacceptable to the user. For belt-driven air compressors, there is no such problem. For direct gear transmission, no-load pressure is generally maintained at more than 2.5 bar, and some even as high as 4 bar, to ensure lubrication of the gearbox. In the case of belt drive, no-load pressure can theoretically be zero because the oil sucked into the rotor is sufficient to lubrate the rotor and bearings. For safety purposes, the pressure is maintained at about 0.5 bar. In a 160 kw of gear drive air compressor as an example, the work 8000 hours a year, 15% of them (1200 hours) for the light, the machine each year will more than belt drive with air compressor power consumption 28800 KWH of electricity (assume that the two machines no-load differential pressure of 2 bar, about 15% of the energy consumption difference), the long run, it will be a big cost.

Regarding screw air compressor, there will be no big difference between the two transmission modes of air compressor on the whole. It is our best choice to choose the right one according to our own actual situation.

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