Superior Energy Efficiency
The combination of two-stage compression and permanent magnet motor technology delivers significant energy savings compared to traditional compressors. By minimizing back-flow loss and mechanical friction, the system operates more efficiently even under continuous use.
Strong Reliability & Durability
Key components are upgraded for longevity: imported high-quality bearings ensure smooth rotor operation, while thickened rotor coatings resist wear and corrosion. These enhancements allow the compressor to maintain consistent performance for years.
Strict Quality Compliance
The compressor adheres to CE and ISO9001 international quality standards, with processing accuracy reaching the micrometer level. This compliance guarantees that the equipment meets rigorous industrial requirements for safety and performance.
High Environmental Adaptability
Some models feature an IP65 protection level, making them suitable for humid or dusty environments—common in construction, mining, and outdoor industrial sites. Additionally, low-noise and low-vibration designs reduce disruption to the working environment.
User-Friendly Intelligence
The IoT-enabled control system and simplified interface make operation accessible to users with varying expertise. Low maintenance requirements also lower operational costs, making the compressor a cost-effective long-term investment.
Preparation Before Booting
Environmental and equipment inspection
ensure that the air compressor is installed on a stable and well-ventilated ground, that there are no debris and obstacles around, and that the ambient temperature and humidity are within the allowable range of the equipment. Check whether the various parts of the air compressor are operating normally, such as the compressor, motor, cooling system, protective devices, etc., are intact and complete, and whether the connecting parts are loose.
Power supply and circuit inspection
check whether the power supply of the air compressor is normal, whether the voltage is within the rated range, plus or minus 5%, and ensure that it is well grounded. Check whether the power cord is damaged, aging, etc., and replace it in time if there is a issue.
Oil level and quality check
Keep the lubricating oil in the oil cylinder within the scale range, and check that the oil volume in the oil injector should not be lower than the scale mark value.
Valves and filters inspection
Check whether the valve on the air supply pipe is open and whether the manual drain valve is closed. Clean or replace the air filter element to prevent dust and impurities from entering the air compressor.
Start the air compressor
Turn on the power
First check whether the running status light of the air compressor is normal, press the start switch of the air compressor to start the compressor operation.
Check the operating status
Once the air compressor is started, immediately check whether the running sound is within the range, or any abnormal vibration, impact or stuck, especially the loading sound. Manually unload and unload several times to check whether the loading and unloading is correctly performed.
Observe the pressure change
by observing the pressure gauge, wait for the air compressor to rise to the normal operating pressure, in the process of pressurization, pay attention to observe the change of the pressure gauge, if the pressure rises slowly, or exceeds the rated range, you need to check and adjust the operating status and parameters of the air compressor in time.
Considerations in operation
Parameter monitoring: Always pay attention to the readings of various instruments, such as pressure gauges, thermometers, ammeters, etc., and adjust them accordingly. Check the readings on the display every hour and keep a record. When the automatic running light is lit, it means that the start and stop of the loading and unloading motor are automatically controlled by the build-in computer.
Drainage and leakage inspection
Check the discharge of condensate during operation every hour, and check whether there is running, rising, dripping and leaking every day, including the leakage of oil, gas and possible water.
Component inspection
Always pay attention to the surface temperature of the air compressor motor to avoid overheating of the motor. Pay attention to vibration and noise, and stop the machine for inspection in time if there is any abnormality. Clean the motor fins and ventilation hood regularly to ensure that the motor dissipates heat well.
Shutdown steps
Unloading and shutdown
When the air outlet is closed or needs to be stopped, the air gate should be closed, the air intake should be stopped, and the stop button or switch of the air compressor should be pressed to stop the operation of the compressor.
Cut off the power supply
After the air compressor stops running normally, disconnect the power supply and ensure that maintenance and repair are carried out safely.
Discharge of condensate
Discharge of condensate from gas-water separators, buffer tanks, etc.
| Manufacturing Industry In mechanical processing and assembly lines, the compressor drives pneumatic tools (e.g., drills, grinders) and maintains stable air pressure to ensure production accuracy and efficiency. It provides reliable power for heavy equipment like rock drills and pneumatic picks, withstanding harsh conditions such as dust, vibration, and temperature fluctuations. | Medical & Food-Pharma Industries When paired with filtering equipment, the compressor delivers sterile compressed air. Critical for dental tools, ventilators (medical), and food packaging (food-pharma), where oil contamination is strictly prohibited. |
| Energy & Electronics Industries In the energy sector, it supports wellbore cleaning in oil and gas extraction and pneumatic control in power plants. For electronics manufacturing, it supplies high-purity compressed air to prevent damage to sensitive components. The stable airflow and low oil risk ensure textile quality during weaving and finishing processes, avoiding oil stains that could ruin fabrics. |
Consistent Low-Pressure Air Delivery
The primary functionality of the Low-Pressure PM Rotary Screw Air Compressor is to generate and supply stable low-pressure compressed air that meets the rigorous demands of high-airflow applications. It maintains steady pressure levels across fluctuating loads, ensuring uninterrupted performance for critical industrial processes.
Dynamic Demand Adaptation
Equipped with VSD technology, the compressor responds instantly to changes in airflow requirements. Whether the application needs a sudden surge or a steady stream of low-pressure air, the system adjusts seamlessly, eliminating idle running and the associated energy losses.
IoT-Enabled Smart Monitoring
Built-in IoT smart monitoring enhances functionality by providing remote access to operational data—including pressure levels, motor performance, and maintenance alerts. This feature enables predictive upkeep, allowing users to identify and address potential issues before they disrupt operations, thus maximizing uptime.
| Model | Power (KW) | Pressure(Bar) | Output m³/min | Dia. | Noise (dB) | Outline(MM) | Wt(KG) |
| Permanent Magnet Variable Frequency Models | |||||||
| LY-10PV | 7.5 | 8 | 1.2 | G1/2 | 66±2 | 800*720*950 | 240 |
| 10 | 1.0 | ||||||
| 13 | 0.8 | ||||||
| LY-15PV | 11 | 8 | 1.6 | G3/4 | 68±2 | 950*800*1070 | 405 |
| 10 | 1.4 | ||||||
| 13 | 1.2 | ||||||
| LY-20CV | 15 | 8 | 2.4 | G3/4 | 68±2 | 950*800*1070 | 430 |
| 10 | 2.0 | ||||||
| 13 | 1.7 | ||||||
| LY-25CV | 18.5 | 8 | 2.9 | G3/4 | 68±2 | 950*1100*1110 | 510 |
| 10 | 2.7 | ||||||
| 13 | 2.2 | ||||||
| LY-30CV | 22 | 8 | 3.5 | G11/4 | 69±2 | 1300*860*1135 | 540 |
| 10 | 3.2 | ||||||
| 13 | 2.9 | ||||||
| LY-40CV | 30 | 8 | 5.0 | G11/4 | 69±2 | 1300*860*1135 | 690 |
| 10 | 4.3 | ||||||
| 13 | 3.7 | ||||||
| LY-50CV | 37 | 8 | 6.1 | G11/2 | 70±2 | 1050*1050*1450 | 750 |
| 10 | 5.7 | ||||||
| 13 | 5.1 | ||||||
| LY-60CV | 45 | 8 | 8.0 | G2 | 72±2 | 1300*1100*1350 | 920 |
| 10 | 6.8 | ||||||
| 13 | 5.8 | ||||||
| LY-75CV | 55 | 8 | 10.1 | G2 | 73±2 | 1500*1150*1500 | 1500 |
| 10 | 7.8 | ||||||
| 13 | 7.3 | ||||||
| LY-100CV | 75 | 8 | 13.3 | G2 | 75±2 | 1900*1200*1555 | 1800 |
| 10 | 12.2 | ||||||
| 13 | 9.0 | ||||||
| LY-125CV | 90 | 8 | 16.3 | G2 | 75±2 | 2100*1250*1700 | 2200 |
| 10 | 14.6 | ||||||
| 13 | 12.3 | ||||||
| LY-150CV | 110 | 8 | 20.6 | DN65 | 75±2 | 2300*1650*2000 | 2900 |
| 10 | 17.0 | ||||||
| 13 | 14.2 | ||||||
| LY-180CV | 132 | 8 | 24.0 | DN65 | 75±2 | 2550*1650*2000 | 3100 |
| 10 | 20.6 | ||||||
| 13 | 16.5 | ||||||
| LY-220CV | 160 | 8 | 27.0 | DN80 | 75±2 | 2550*1650*2000 | 3300 |
| 10 | 23.2 | ||||||
| 13 | 19.7 | ||||||
| LY-250CV | 185 | 8 | 30.2 | DN80 | 78±2 | 2800*1750*2100 | 3500 |
| 10 | 27.0 | ||||||
| 13 | 22.5 | ||||||
| LY-300CV | 220 | 8 | 36.4 | DN100 | 78±2 | 3200*1950*2150 | 4500 |
| 10 | 33.1 | ||||||
| 13 | 38.5 | ||||||
| LY-340CV | 250 | 8 | 42.5 | DN100 | 78±2 | 3200*1950*2150 | 4600 |
| 10 | 38.8 | ||||||
| 13 | 34.6 | ||||||
| LY-420CV | 315 | 8 | 55.6 | DN100 | 80±2 | 3200*1950*2150 | 7000 |
| 10 | 49.6 | ||||||
| 13 | 42.7 | ||||||
| LY-480CV | 355 | 8 | 65.0 | DN100 | 82±2 | 4300*1650*2000 | 7500 |
| 10 | 55.0 | ||||||
| 13 | 48.0 | ||||||
| LY-540CV | 400 | 8 | 72.0 | DN100 | 83±2 | 4300*1950*2000 | 8100 |
| 10 | 62.0 | ||||||
| 13 | 52.5 | ||||||
| Why should we choose your Advanced Dual-Stage Permanent-Magnet Screw Compressor? We are a professional manufacturer with over 10 years of experience in producing and exporting screw air compressors. Our products integrate advanced two-stage compression and permanent magnet motor technology, ensuring reliability, efficiency, and compliance with global quality standards. | How long can the compressor operate effectively? With upgraded components like high-quality bearings and thickened rotor coatings, the compressor can maintain optimal performance for more than 15 years under normal use and regular maintenance. |
| What after-sales support do you provide? We offer 24-hour online customer service to address technical issues, maintenance questions, or operational concerns. Our team provides timely assistance to minimize downtime. | Is the compressor suitable for outdoor or humid environments? Yes—selected models have an IP65 protection level, which prevents water and dust ingress, making them ideal for outdoor construction sites, mining operations, or humid industrial facilities. |
