S-Series Low Pressure Two-stage Air Compressor
S-Series Low Pressure Two-stage Air Compressor
- Rated Pressure:0.4-0.5 MPa, 4-5 Bar
- Air Flow @ Outlet:10.5-65 m³/min
- Working Power:37-250 kW, 50hp-335hp
Features of the S-Series Low Pressure Two-stage air Compressors
● The latest models boast features such as no gear faults, no coupling transmission faults, and no motor bearing issues, making them more efficient and easier to maintain.
● The dual permanent magnet motor allows for seamless speed changes, integrated shaft transmission, adjustable inter-stage pressure to maintain constant pressure, and efficient operation at all times for energy savings.
● The operating noise is low, and there is no gear meshing noise.
Core components highlight of the Low Pressure Two-stage Air Compressors
Two-stage air end low-voltage Design
● The two-stage air end offers 15% increased efficiency compared to single-stage equipment；
● The double-level low voltage main machine offeres 6-10 percent more efficiency than the two-stage main machine.
Double frequency conversion system
Constant temperature and pressure output is commonly used in industrial equipment.
The constant temperature output is typically set at around 81°C to avoid the problem of high temperature shutdowns, while the constant pressure output has an accuracy of ±0.005 MPa.
High-efficiency energy-saving permanent magnet motor
Permanent magnet variable frequency motors provide many advantages for users in terms of energy savings. By eliminating no-load losses and reducing running torques, these motors offer higher efficiency when compared to traditional AC motors. For applications that require frequent starting and stopping, variable frequency motors maintain their high efficiency levels and meet first-level energy efficiency ratings.
Customized large cooling system
The cooling system is designed to keep the temperature at a constant level. Its features include an increased radiator surface area with rust and corrosion resistant coatings, as well as a low oil temperature which prevents carbon deposits and high-temperature occurrences. Additionally, the use of large variable frequency fans or centrifugal fans in units over 75 kW ensures even heat distribution, low noise levels, and large air volume.
| Model | Power (kW/HP) | Rated Working Pressure (bar) | Free Air Delivery (m3/min) | Dimension (mm) | Weight (kg) | Outlet Pipe Diameter |
|---|---|---|---|---|---|---|
| NXS-37V-4 NXS-37V-5 | 37 / 50 | 4 | 10.5 | 2460*1540*1705 | 1900 | DN50 |
| 5 | 9.7 | |||||
| NXS-45V-4 NXS-45V-5 | 45 / 60 | 4 | 12.8 | 2460*1540*1705 | 2100 | DN50 |
| 5 | 11.8 | |||||
| NXS-55V-4 NXS-55V-5 | 55 / 75 | 4 | 16.5 | 2460*1540*1705 | 2200 | DN50 |
| 5 | 15.0 | |||||
| NXS-75V-4 NXS-75V-5 | 75 / 100 | 4 | 20.4 | 3015*1680*1805 | 2800 | DN65 |
| 5 | 18.5 | |||||
| NXS-90V-4 NXS-90V-5 | 90 / 120 | 4 | 25.4 | 3015*1680*1805 | 2800 | DN65 |
| 5 | 23.3 | |||||
| NXS-11 0V-4 NXS-11 0V-5 | 110 / 150 | 4 | 30.0 | 3500*1980*2050 | 3200 | DN80 |
| 5 | 27.5 | |||||
| NXS-132V-4 NXS-132V-5 | 132 / 175 | 4 | 36.0 | 3500*1980*2050 | 3500 | DN100 |
| 5 | 32.5 | |||||
| NXS-160V-4 NXS-160V-5 | 160 / 215 | 4 | 43.5 | 3865*2050*2300 | 4100 | DN100 |
| 5 | 41.0 | |||||
| NXS-185V-4 NXS-185V-5 | 185 / 250 | 4 | 49.2 | 3865*2050*2300 | 4500 | DN100 |
| 5 | 45.0 | |||||
| NXS-200V-4 NXS-200V-5 | 200 / 270 | 4 | 55.0 | 3865*2050*2300 | 5100 | DN125 |
| 5 | 50.0 | |||||
| NXS-220V-4 NXS-220V-5 | 220 / 300 | 4 | 60.5 | 4100*2200*2300 | 6200 | DN125 |
| 5 | 53.7 | |||||
| NXS-250V-4 NXS-250V-5 | 250 / 335 | 4 | 65.0 | 4100*2200*2300 | 6600 | DN150 |
| 5 | 61.3 |
Note:
Model number remarks: “F” as fixed speed, “V” as VSD. Due to the potentially different rotation speeds of motors, the air flow rates of fixed speed represent the minimum in the range (i.e 30kW 8 bar 5.67m³/min), while VSD can reach the maximum at full loading.
Standard voltage in 380V (+/-10%), 50Hz +/-2% and available for customized voltage 220/380/440/460V/60Hz.
In cases of elevated altitudes, extreme temperatures, excessive humidity, heavy dust exposure, or any other challenging operational environments, we can offer tailored product designs to meet your specific needs. Customization is available to align with your unique requirements.
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Installation Diagram for Low Pressure Two-stage VSD Srcew Air Compressor
Looking for the Best Compressed Air Solution for your industry?
● Share your requirements for expert evaluation (multilingual support).
● Develop customized solution, considering options such as IP level, air end and parts, screen language, remote control, appearance, voltage and temperature adaptation, etc.
● Start production after order confirmation (standard production time: 20-25 days).
● Conduct rigorous quality testing before shipping.
● Lifelong technical support, original maintenance parts support, and up to 10-year warranty on the air end.
Frequently Asked Questions
What is Low Pressure Two-stage VSD Screw Air Compressor?
Low Pressure Two-stage VSD Screw Air Compressor is a type of air compressor that uses two stages of compression to produce compressed air. It is equipped with a Variable Speed Drive (VSD) system that allows for energy-efficient operation and can adjust the compressor’s speed to match the air demand. This type of compressor is commonly used in industries such as automotive, food and beverage, and pharmaceuticals.
How does a Low Pressure Two-stage VSD Srcew Air Compressor work？
A Low Pressure Two-stage VSD Screw Air Compressor works by using two stages of compression to increase the pressure of air. The first stage compresses the air to an intermediate pressure, which is then cooled before entering the second stage. In the second stage, the air is compressed to the desired pressure and then delivered to the system. The Variable Speed Drive (VSD) technology allows for the compressor to adjust its speed to match the air demand, resulting in energy savings and increased efficiency.
What are the tips for starting up the Low Pressure Two-stage VSD Srcew Air Compressor?
Some tips for starting up a Low Pressure Two-stage VSD Screw Air Compressor include checking the oil level and ensuring it is at the correct level, checking the air filters and cleaning or replacing them if necessary, checking the belts and pulleys for any damage or wear, and checking the electrical connections to ensure they are secure. It is also important to follow the manufacturer’s instructions for starting up the compressor.
