Fixed Speed Air Compressor 7.5kW to 132kW

I. Fixed-Speed Motor
This Fixed Speed Air Compressor 7.5kW to 132kW utilizes an industrial fixed-speed motor featuring Grade 2 (or higher) energy efficiency, IP54 protection, and Class F insulation.
Power supply: 380V/50Hz
Drive system: Direct drive (belt-free); offers high efficiency and low failure rates.
Suitable for applications requiring stable air demand and continuous, full-load operation (e.g., textiles, chemicals, mining).
Capable of 24-hour continuous operation; features a simple structure and low maintenance costs.
II. Power Range
Power ratings: 7.5, 15, 22, 30, 37, 45, 55, 75, 90, 110, 132 kW
Air delivery: 1.2 ~ 23.2 m³/min
Standard pressure: 0.8 MPa (customizable to 1.0 MPa or 1.3 MPa)
III. Noise and Cooling
Operating noise: 63–72 dB(A) (varies by power rating)
Cooling method: Air-cooled
Discharge temperature: ≤ Ambient temperature + 15°C
Ambient temperature range: -5°C to 45°C
IV. Control and Protection
Industrial-grade microcomputer controller with a high-definition display
Displayed parameters: Operating pressure, discharge temperature, cumulative running time, fault codes, etc.
Functions: Automatic load/unload, over-pressure protection, high-temperature alarm, overload protection, phase sequence protection
Intuitive user interface and simple parameter settings

Product Specifications Table:

Note: The above specifications are based on standard operating conditions of 0.8 MPa. Please contact Yililai for customization regarding higher pressures (1.0/1.3 MPa) or special voltages.

Applications:

Elily’s Fixed Speed Air Compressor 7.5kW to 132kW is particularly well-suited for centralized air supply in medium-sized factories with stable air demand, or for zonal air supply in large workshops. Typical applications include:
Metalworking: Pneumatic clamping, sandblasting, drilling, and tapping—requiring a stable, continuous air supply.
Surface Treatment: Pre-treatment blow-off for painting and powder coating—requiring constant pressure.
Packaging and Food Processing: Pneumatic strapping, bottle blowing, and material conveying (requires precision filtration at the downstream stage).
Textile and Dyeing: Air-jet looms and air-jet spinning—requiring 24-hour continuous operation.
Chemical and Pharmaceutical: Pneumatic instrumentation, fermentation aeration, and material conveying.
Maintenance Workshops and Automated Production Lines: Pneumatic wrenches, cylinder actuation, and instrument control.

Unique advantages of fixed-speed air compressors:

Compared to variable-frequency models, Fixed Speed Air Compressor 7.5kW to 132kW is more competitive in the following scenarios:
1. Lower initial investment: Eliminates the cost of variable-frequency drives (VFDs) and permanent magnet motors, resulting in a 20%–30% lower purchase price.
2. Simpler structure: Fewer electronic components and potential points of failure; maintenance is straightforward and can be performed by general electricians.
3. Suitable for continuous full-load operation: In applications with stable air demand, the efficiency difference between fixed-speed and variable-frequency models is negligible, yet fixed-speed units offer greater durability and lower failure rates.
4. Affordable spare parts: Fixed-speed motors are standard across the industry, controllers are highly compatible, and replacement parts are readily available.
5. Superior grid compatibility: Minimal harmonic interference with the power grid; no need for additional reactors.

Logistics and Delivery

Each air compressor is packaged in a heat-treated wooden crate compliant with ISPM-15 standards; the crate has undergone fumigation and bears the required international markings, making it ready for immediate export customs clearance. The interior features shock-absorbing foam and securing brackets to prevent damage from vibration or impact during transit. The unit is secured to a pallet to facilitate forklift handling, and the exterior of the crate clearly indicates lifting points and the center of gravity.

Partner Brands

FAQ：

1. Can this Fixed Speed Air Compressor 7.5kW to 132kW run continuously for 24 hours?
Yes. Elily’s fixed-speed models are designed for S1 continuous duty. Field tests show they can operate under continuous load at 0.8 MPa for over 8,000 hours without major overhauls (depending on maintenance). With their simple motor structure, fixed-speed models are better suited for long-term, full-load operation than variable-frequency models.

2. Does the actual air delivery match the values in the specification table?
Our specifications are based on ISO 1217 standard testing (intake pressure: 1 bar; intake temperature: 20°C). While high intake temperatures or pipeline leaks at the user's site may cause some reduction in output, actual measurements show the deviation remains within 5% under most operating conditions.

3. Which is more energy-efficient: fixed-speed or variable-frequency models?
When air demand is stable and the unit runs at full load for extended periods, there is little difference in efficiency (fixed-speed motors are inherently efficient). However, when air demand fluctuates significantly, variable-frequency models offer clear energy savings (20–30%). Fixed-speed models excel in terms of lower initial investment, simple structure, and ease of maintenance.

4. Does customizing the pressure affect air delivery?
Yes. At the same power rating, higher pressure results in lower air delivery. For example, a 22 kW model delivers 4.15 m³/min at 0.7 MPa, but this drops to 3.2 m³/min at 1.0 MPa. Please select the appropriate power rating based on your maximum pressure requirements.

5. How do I choose between 7.5 kW, 22 kW, 55 kW, and 132 kW models?
Choose based on required air delivery: 7.5–15 kW for small pneumatic tools or standalone equipment; 22–37 kW for centralized air supply in small-to-medium workshops; 45–75 kW for medium-sized production lines or plant-wide supply; and 90–132 kW for large factories or high-demand applications. Contact our sales team for free model selection advice and air consumption calculations.

6. Will the fixed-speed model start and stop frequently?
Equipped with an air receiver tank and pressure switch control, the unit can operate under continuous load when air demand is stable, avoiding frequent starts and stops. A wider pressure band (e.g., 0.6–0.8 MPa) can be set to further reduce the frequency of start-stop cycles, or a larger-capacity air receiver tank can be installed for buffering.

7. I am a foreign trade merchant; can you provide neutral packaging or private labeling?
Yes, provided the minimum order quantity is 5 units or more. Please consult our foreign trade department for details; we support OEM/ODM partnerships.