75 hp air compressor has the 350 cfm air flow @7bar. This 55kw air compressor is variable speed drive type. We are manufacturer, so good 75 hp screw air compressor price is available. The protection class of permanent magnet motor is IP54. Because of inverter and PM motor, there are obvious energy-saving advantages. Besides, it has stability and plenty of air volume. So it has wide applications in die-casting, electronics, electric power, metallurgy, chemical industry, packaging, spraying painting, sandblasting and other industries.

(1) Big energy-saving effect of PM VSD 75 hp screw air compressor

The main advantage of this 55KW screw air compressor is energy saving. Generally, it can save energy by 10%~35%. The amount of energy saving mainly bases on two factors. That is, the working conditions of the industrial air compressor and the parameters setting of inverter. Of course, the biggest factor is the actual application condition of the screw compressor. When the factory air consumption changes greatly, the energy saving effect will be better. The direct data is the ratio of the no-load time to the total working time.

So how much can a 55KW 75 hp PM VSD rotary screw air compressor save energy in a year?

Assume an average load factor of 70%. And the industrial air compressor runs 8000 hours per year. The energy consumption of a 55kw fixed speed air compressor is as follows:

① Loading power consumption:
70% loading time*8000 hours/year*55KW=30800 kWh/year

② Unloading electricity consumption (that is, no-load energy consumption):
30% unloading time * 8000 hours/year * 55KW * 45% (power consumption during unloading) = 59400 kWh/year

③ Power loss caused by control pressure:
That is, For every 1 bar increase in pressure, power consumption increases by 7%. Saving 2bar is equivalent to saving 14% of power consumption.
70% loading time*2bar differential loss 14%*55KW*8000 hours/year=43120 kWh/year

Electric energy saved by 75 hp VSD screw air compressor = unloading electricity consumption + power loss caused by control pressure = 59400 kWh/year + 43120 kWh/year = 102520 kWh/year

Assume that each kilowatt-hour of electricity is 1 CNY. Then the 55KW variable speed air compressor can save almost 102520CNY per year.

(2) Low maintenance cost of permanent magnet variable speed air compressor

The structure of screw type air compressor itself is simple. Moreover, this 55KW screw air compressor uses high-quality parts. For example, the airend is the Hanbell brand. And the frequency converter and controller are Inovance brand. The startup disk is from Schneider. So our 75 hp screw air compressor has a long service life.

In addition, it adopts an energy-saving control system. This air compressor uses a soft start. Electrical shocks to motors and electrical components are thus reduced. So extend the service life of the compressor motor. At the same time, it also reduces the mechanical impact on the equipment. Therefore, it extends the life of the airend bearing and the gearbox.

Because of the energy-saving controller, this 55 KW air compressor is often in a loaded state. Therefore, it reduces the action times of solenoid valves and pneumatic components. Their failure rate is greatly reduced.

(3) Advantaged 75 hp screw air compressor price

Because we are screw compressor manufacturer, our price has advantages. Besides, we can customize as your special needs. For example, we can print your logo on our industrial air compressor. And different colors are available. In addition, our factory can also customize the special voltages. 220V, 415V, 440V and 460V three phase or 60HZ are acceptable. More importantly, we can provide full technical support.

The actual power consumption of the air compressor has a linear relationship with the motor speed. So reducing the motor speed will reduce the actual power consumption. Due to the pressure sensor, the VSD air compressor can instantly sense the actual air pressure and air consumption in the system. It can realize the precise coordination of electrical appliance control and frequency conversion control. Thus, it can control the motor speed in real time. But do not change the motor torque of the 75 hp screw air compressor. So as to respond to changes in system pressure. Besides maintain a stable system pressure. Finally, it can realize on-demand output of high quality compressed air.

Sometimes the system consumes small air. At this time, the compressed air supply is greater than the system consumption. Therefore, the variable speed air compressor will reduce the speed. At the same time reduce the output compressed air volume. On the contrary, increase the motor speed. At the same time increase the compressed air volume. So as to maintain a stable system pressure value.

The VSD air compressor working bases on the fluctuation trend of the pipe network pressure. It not only adjusts the motor speed, but also eliminates the unloading operation of the air compressor. So it realizes energy saving.

Q1: What’s the 75 hp air compressor cfm?

A1: For our 55 kw screw air compressor, the air flow is about 350 cfm @7bar.

Q2: What’s your lead time for this 55kw screw air compressor?

A3: If it’s regular machine, the lead time is about 20 days. That is, you need 380V/50HZ 3-phase. Because we are factory, customization is available. But if want to buy special OEM air compressor, the time will be about 35~40 days.

Q3: Can I also buy some spare parts from you?

A3: Sure. The air compressor filters are consumables. So we usually advise customers to purchase filters with the 55KW screw compressor. In addition, if need, you can also buy some air compressor valves.

Q4: Should I buy the variable speed drive or fixed speed drive air compressor?

A4: In fact, this question mainly bases on your actual air consumption. If your air consumption has significant change, the VSD air compressor is better. Otherwise, choose a latter power frequency 75 hp screw air compressor.