75kW Standalone Low Pressure Fixed Speed Air Compressor

The Elily 75kW Standalone Low Pressure Fixed Speed Air Compressor is specially designed for low-pressure, high-flow air use scenarios with pressures of 3-6 kg (0.3-0.6MPa). It adopts an industrial frequency direct drive design, with a classic structure and robust durability. It is a cost-effective main model for factory energy-saving renovation and new low-pressure air sources.
I. Optimized for Low Pressure, Saving Energy from the Source
Unlike the inefficient traditional "high-pressure unit + pressure reducing valve" air supply mode, this machine's main unit profile, rotor clearance, and pipeline valves are specifically tuned for low-pressure conditions, directly outputting 3-6 kg of low-pressure compressed air, completely eliminating throttling losses. Using it as a pressure reducer compared to a high-pressure unit can save 20%-30% of energy. The exhaust pressure can be customized as needed, arbitrarily set within the range of 0.3-0.6 MPa, precisely matching process requirements.
II. 75KW Direct-Drive for Stable Reliability
Equipped with a 75KW industrial-grade asynchronous motor (380V/50Hz three-phase power supply), it uses flexible direct-drive transmission, eliminating belt or coupling losses and achieving 100% transmission efficiency. Fixed-speed operation eliminates the need for inverters, controllers, and other delicate and easily damaged components. The circuit structure is simple, dust-resistant, and resistant to high and low temperatures, suitable for continuous 24-hour full-load operation with an extremely low failure rate. The core main unit adopts a large rotor and low-speed design, ensuring smooth operation, low vibration, and noise control below 75dB.
III. Abundant Air Volume, Suitable for High-Flow Scenarios
Within the 0.3-0.5MPa pressure range, the exhaust volume can reach 15-18 m³/min, meeting the high-flow, continuous air requirements of textile air-jet looms, glass float lines, cement air chutes, and chemical material conveying. The forced air cooling system is equipped with enlarged plate-fin radiators and high-volume fans, ensuring a stable exhaust temperature of ≤90℃ under full load operation at an ambient temperature of 35℃, preventing high-temperature shutdown.
IV. Simple Structure, Flexible Networking
Without a built-in air tank, users can freely combine air tanks, refrigerated dryers, filters, and other post-processing equipment according to site requirements, enabling flexible network configuration. The entire unit has a compact structure, small footprint, and simple installation and wiring. It comes standard with an LED digital display instrument that displays pressure, temperature, and running time in real time. The industrial frequency model has highly interchangeable parts; routine maintenance only requires replacing lubricating oil, air filters, and oil separators, resulting in low operating costs.

Product parameters:

Applications:

This 75kW Standalone Low Pressure Fixed Speed Air Compressor is widely used in low-pressure continuous gas supply applications such as textile printing and dyeing, glass manufacturing, cement building materials, chemicals, ceramics, and dust removal and purging. It is an ideal upgrade solution to replace old piston machines or high-pressure machines for pressure reduction, and has the comprehensive advantages of low procurement cost, stable operation, and worry-free maintenance.

Company Strength

The company boasts numerous engineers with extensive experience in cutting-edge air compressor technology research and development, providing strong technical support. We specialize in the R&D, production, and sales of industrial frequency, permanent magnet variable frequency, two-stage compression permanent magnet variable frequency, low-pressure, and mobile screw air compressors, blowers, and vacuum pumps. All of our permanent magnet variable frequency air compressors have passed the national Level 1 energy efficiency certification.

Our Guangdong branch, located in Liaobu Town, Dongguan, has a standardized factory base of over 20,000 square meters. We utilize state-of-the-art manufacturing and testing equipment, and our skilled workers adhere to strict professional standards. All our products are equipped with Hanbell main units manufactured using Taiwanese technology, Level 1 energy-efficient permanent magnet variable frequency motors, and Zhongchen split-type frequency converters. Other components are also sourced from leading domestic energy-saving brands.

FAQ：

1. Can the pressure of this 75kW Standalone Low Pressure Fixed Speed Air Compressor be customized?
Yes. This machine supports customized pressures within the range of 3-6 kg. The factory can lock the required working pressure according to the customer's site conditions, eliminating the need for later modification and pressure adjustment. It directly matches the air requirements of low-pressure purging, conveying, and other equipment.

2. It's a stand-alone unit; does it need an internal air tank?
No. This is a stand-alone model without a built-in air tank. It can be directly connected to the customer's existing air tank, filter, and refrigerated dryer to form a complete low-pressure air source system, making it highly flexible for old workshop renovations and equipment replacements.

3. Which is more energy-efficient, a fixed-frequency compressor or a variable-frequency compressor?
Under stable air consumption and long-term full-load conditions, the efficiency difference between the two is not significant (fixed-frequency motors are inherently efficient). When air consumption fluctuates greatly, the variable-frequency compressor shows more significant energy savings. The advantages of a fixed-frequency compressor are lower investment, simpler structure, and easier maintenance.

4. Is it suitable for low-pressure applications in dust removal, purging, and material conveying?
Very suitable. Specifically calibrated for industrial low-pressure (3-6 kg) applications, this unit provides stable and constant air pressure, perfectly suited for various low-pressure gas usage scenarios such as workshop dust blowing, environmental dust removal, powder pneumatic conveying, and textile process air supply.

5. Is the operating noise high? Can it be used inside a workshop?
The entire unit has undergone vibration-damping and noise-reducing structural optimization. The industrial frequency model eliminates the high-frequency noise of an inverter, and its actual operating noise is 2-3 dB lower than that of inverter models. It can be directly installed in production workshops, assembly lines, and near environmental protection equipment without affecting daily production operations.

6. How to choose between 37KW, 55KW, and 75KW?
Choose according to the required exhaust volume: 37KW for light and small low-pressure purging; 55KW for medium-sized workshop centralized air supply or material conveying; 75KW for large production lines or high-volume dust removal. Contact sales for free selection services.

7. Is maintenance complex? Are spare parts readily available? With a mature and simple structure, routine maintenance only requires periodic replacement of the three filters and addition of air compressor-specific lubricating oil. Ordinary users can perform maintenance themselves by following the instruction manual. Parts such as the industrial frequency motor and controller are universally available nationwide, readily available, ensuring worry-free and low-cost maintenance.

8. Will the industrial frequency model frequently start and stop?
Standard configuration includes an air tank and pressure switch control. When air consumption is stable, the equipment can operate continuously under load, avoiding frequent start and stop. A wider pressure range (e.g., 0.4-0.6MPa) can be set to further reduce the number of start and stop times.