37kw 50HP Two Stage VFD PM series Two-stage Compression Screw Air Compressor
Introduction
The ETSV37A-4 is a 37kW / 50HP Two-Stage VFD PM Series Screw Air Compressor, representing the pinnacle of energy-efficient compressed air technology. Utilizing advanced two-stage compression with interstage cooling, this unit achieves near-isothermal compression, significantly reducing power consumption. The entire series meets China National First-Level Energy Efficiency Standards and was honored as the 2023 National Enterprise Standard "Leader" . Designed for 24/7 industrial operation, it delivers superior reliability, ultra-low noise, and exceptional energy savings.
Core Advantages
1. Low Noise
- Unique rotor profile allows the main engine to run at low speed with minimal vibration
- Graded compression effectively reduces pipeline pulses, vibrations, and noise
- Ideal for noise-sensitive environments
2. High Reliability
- Unique rotor profile ensures highly meshed yin and yang rotors with long service life
- Graded compression reduces gas leakage and promotes oil film formation to protect the rotor
- Excellent pressure ratio distribution reduces bearing load, extending bearing life to 25,000 hours
3. Super Energy Saving
- Superior pressure ratio distribution greatly improves compression efficiency
- Interstage cooling achieves near-isothermal compression, reducing power consumption
- Two-stage compression lowers pressure ratio per stage, effectively reducing energy loss
- Entire series meets National First-Level Energy Efficiency Standards
- Won the 2023 National Enterprise Standard "Leader" award
Technical Parameter
| Model | Power (kW) | FAD @ 0.7MPa (m³/min) | Dimensions (L×W×H mm) | Weight (kg) |
|---|---|---|---|---|
| ETS-18A / ETSV-18A | 18.5 | 3.5 | 1500×900×1150 | 680 |
| ETS-22A / ETSV-22A | 22 | 4.1 | 1500×900×1150 | 730 |
| ETS-30A / ETSV-30A | 30 | 6.5 | 1800×1100×1350 | 980 |
| ETS-37A/W / ETSV-37A/W | 37 | 7.1 | 1800×1100×1350 | 1080 |
| ETS-45A/W / ETSV-45A/W | 45 | 9.8 | 2100×1260×1600 | 1628 |
| ETS-55A/W / ETSV-55A/W | 55 | 12.8 | 2100×1260×1600 | 1700 |
| ETS-75A/W / ETSV-75A/W | 75 | 17.6 | 2200×1260×1600 | 2256 |
| ETS-90A/W / ETSV-90A/W | 90 | 21.0 | 2700×1600×1950 | 2280 |
| ETS-110A/W / ETSV-110A/W | 110 | 24.5 | 2700×1600×1950 | 3300 |
| ETS-132A/W / ETSV-132A/W | 132 | 29.9 | 2800×1700×1900 | 3750 |
| ETS-160A/W / ETSV-160A/W | 160 | 34.5 | 2800×1800×1900 | 3770 |
| ETS-185A/W / ETSV-185A/W | 185 | 41.0 | 3200×2200×2300 | 3990 |
| ETS-200A/W / ETSV-200A/W | 200 | 44.7 | 3200×2200×2300 | 4890 |
| ETS-220A/W / ETSV-220A/W | 220 | 48.6 | 3200×2200×2300 | 5500 |
| ETS-250W / ETSV-250W | 250 | 55.0 | 3550×2300×2350 | 6000 |
| ETS-280A/W / ETSV-280A/W | 280 | 61.0 | 3550×2300×2350 | 6500 |
| ETS-315A/W / ETSV-315A/W | 315 | 69.0 | 3750×2400×2350 | 7000 |
| ETS-355W / ETSV-355W | 355 | 78.0 | 3750×2400×2350 | 7500 |
Application
| Automotive Manufacturing | Assembly lines, robotic systems, paint shops |
| Electronics | Cleanroom air, component testing, semiconductor manufacturing |
| Pharmaceutical | Fermentation, tablet pressing, packaging |
| Food & Beverage | Processing lines, bottling, pneumatic conveying |
| Textile | Loom jetting, spinning, finishing processes |
| Mining & Metallurgy | Drilling, conveying, instrument air |
| Chemical Processing | Reactor agitation, material conveying, instrumentation |
| Power Generation | Control air, ash handling, boiler feed |
FAQ
Q1: What makes two-stage compression more energy efficient?
A: Two-stage compression with interstage cooling reduces the pressure ratio per stage, bringing the process closer to isothermal (ideal) compression. This significantly lowers power consumption—meeting national first-level energy efficiency standards.
Q2: What is the bearing life?
A: Thanks to excellent pressure ratio distribution that reduces bearing load, the bearing life reaches 25,000 hours.
Q3: How does the noise level compare to single-stage compressors?
A: The unique rotor profile and graded compression reduce pipeline pulses and vibration, resulting in significantly lower noise than conventional single-stage units.
Q4: What is the oil content in the discharged air?
A: Oil content is ≤3PPM, ensuring clean air for sensitive applications.
Q5: What awards has this series received?
A: The entire series was awarded the 2023 National Enterprise Standard "Leader" for its outstanding energy efficiency.
Q6: What voltage options are available?
A: Standard 380V/3PH/50Hz. Custom voltages available including 220V/3PH/60Hz, 400V/3PH/50Hz, 460V/3PH/60Hz, 6000V/3PH/50Hz, and others upon request.
Q7: What is the air supply temperature?
A: ≤ Ambient temperature + 8~15°C.
Q8: What start methods are supported?
A: Y-△ Starter or VSD (Variable Speed Drive) start.
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