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Two-Stage Screw Air Compressor, Energy-Efficient & Durable - China Suppliers & Factory Solutions
Air-end
Two-stage compression compared to single-stage compression, the two compression tends to the most provincial power of the isothermal compression. From the principle, the single-stage compression of the two compression energy saving 5~8%.
🏆 Won the award of Level 1 Energy Efficiency Grade Certification.
Compared with Level 2 Energy Efficiency Grade — Save 10%–15% energy.
Compared with Level 3 Energy Efficiency Grade — Save 20%–30% energy.
Key Features
Compared with Level 2 Energy Efficiency Grade — Save 10%–15% energy.
Compared with Level 3 Energy Efficiency Grade — Save 20%–30% energy.
- Adopt two-stage independent compression.
- The pressure ratio is equal over both stages as well as having a lower compression speed, which helps improve volumetric efficiency.
- Oil mist spray cooling is used between the stages to make the entire compression process close to isothermal compression and improve the compression insulation efficiency.
- The two-stage rotors are directly driven by the bevel gear respectively, and the compression transmission efficiency is high.
- The large diameter and low speed of the rotors reduce stress on the bearings, thus lengthening their life span as well as any other components.
Controller
- LCD HD touch monitor, PLC control, Human menu interface design.
- Can display multi-line operation parameters and historical records.
- Simple operation, easy inquiry, and convenient maintenance.
Inverter
The inverter is the brain of the air compressor, and all operations of the air compressor are processed and regulated through the inverter, ensuring the safe and reliable operation of the air compressor system in all aspects.
We typically use inverters from Megmeet, Inovance, and Zoncn — internationally renowned brands with stable and reliable quality and guaranteed after-sales service, providing customers with the best possible air compressor user experience.
Motor
IP55 High-Efficiency Permanent Magnet Motor
- The main motor is an IP55 high-efficiency energy-saving permanent magnet motor carefully selected according to the application of the air compressor. (Other IP levels available.)
- All meet the national energy efficiency standards.
- F-class insulation, B-class temperature rise — effectively prevents the entry of dust.
- SKF heavy-duty bearings ensure continuous trouble-free operation for a long time.
Frequently Asked Questions
QWhat is the main advantage of two-stage compression over single-stage compression?
Two-stage compression approaches isothermal compression more closely, resulting in energy savings of 5–8% compared to single-stage compression. Additionally, units with two-stage compression have achieved Level 1 Energy Efficiency Grade Certification, saving 10–30% more energy than lower-grade units.
QWhat type of controller does the air compressor use?
The air compressor features an LCD HD touch monitor with PLC control and a human-friendly menu interface. It can display multiple lines of operation parameters and historical records, making operation, inquiry, and maintenance simple and convenient.
QWhich inverter brands are used, and why are they chosen?
We use inverters from Megmeet, Inovance, and Zoncn — all internationally renowned brands known for stable and reliable quality and guaranteed after-sales service. The inverter acts as the brain of the air compressor, processing and regulating all operations to ensure safe and reliable system performance.
QWhat are the key specifications of the motor used in the air compressor?
The main motor is an IP55 high-efficiency energy-saving permanent magnet motor (other IP levels are available upon request). It meets national energy efficiency standards, features F-class insulation and B-class temperature rise to prevent dust ingress, and uses SKF heavy-duty bearings for long-term, trouble-free operation.
QHow does oil mist spray cooling benefit the compression process?
Oil mist spray cooling is applied between the two compression stages, which keeps the compression process close to isothermal compression. This significantly improves compression insulation efficiency and reduces heat buildup, contributing to better overall energy efficiency and component longevity.
QHow does the rotor design help extend the service life of the air compressor?
The air-end uses large-diameter, low-speed rotors that are directly driven by bevel gears. This design significantly reduces stress on the bearings and other mechanical components, extending their lifespan and minimizing maintenance requirements for long-term reliable operation.
