China EGV-132A-140 Oil-Free Permanent Magnet VFD Screw Blower Supplier, Suppliers

EGV-132A-140 oil-free PM VFD screw blower provides fully oil-free low-pressure air. Saving 20%-35% energy versus traditional Roots blowers. Perfect for wastewater, food, chemical and conveying sectors.

Product Description

No. Item Unit Parameter
1 Air Flow m³/min 57.3
2 Discharge Pressure bar 1.4
3 Unit Internal Temperature < 105
4 Discharge Air Temperature Ambient + (5~8)
5 Max. Inlet Air Temperature 45
6 Cooling Method - Air-cooled
7 Transmission Type - Direct drive
8 Residual Oil Content ppm 0
9 Power Supply - 380V · 3 Phase
10 Motor Power kW 132
11 Motor Insulation Class - F
12 Motor Protection Class - IP55
13 Unit Dimensions (L×W×H) mm 3100×1390×2070
14 Motor Speed rpm 3000
15 Control Mode - PLC
Key Features
100% Oil-Free Air Output
0ppm residual oil with zero contact between rotor and lubricant. It eliminates contamination risks for food, pharma and electronics production.
PM VFD Direct Drive
132kW permanent magnet motor with loss-free direct drive. Auto speed adjustment matches actual air demand. Class F insulation & IP55 protection. Energy saving of 20%-35%.
Low Heat & Ultra-Low Maintenance
Air cooling keeps host temp under 105°C and exhaust only 5~8°C above ambient to avoid overheat stops. Annual maintenance cost drops below 40% of Roots blowers.
PLC Intelligent Control with IoT
Built-in PLC + HMI touchscreen for real-time monitoring and fault alerts. Reserved IoT interface supports remote operation and data tracking.
Compact & Low-Noise Structure
Smooth airflow with weak pressure pulsation for quieter operation and easy installation.
Applications
1. Wastewater Treatment
Supply stable oil-free aeration air for biochemical tanks to activate microorganisms. It slashes aeration power consumption and avoids sludge pollution.
EGV-132A-140 Oil-Free Permanent Magnet Variable Frequency Screw Blower
2. Pneumatic Conveying
For closed transport of grain, cement, plastic pellets. Zero oil residue prevents raw material contamination and pipe blockages.
EGV-132A-140 Oil-Free Permanent Magnet Variable Frequency Screw Blower
3. Chemical & Light Industry
Serves oxidation, textile printing and paper bleaching. Oil-free air protects catalysts and avoids defective finished goods.
EGV-132A-140 Oil-Free Permanent Magnet Variable Frequency Screw Blower
4. Food & Pharmaceutical
Oxygen supply for fermentation, sterile purging for packaging and pharmaceutical production. 0ppm oil fully meets hygiene standards.
EGV-132A-140 Oil-Free Permanent Magnet Variable Frequency Screw Blower
Frequently Asked Questions
What's the biggest advantage over traditional Roots blowers?
It delivers oil-free air, saves 20%-35% electricity and cuts maintenance cost sharply, with lower running noise.
Does this blower produce any oil residue in compressed air?
Zero, residual oil content is 0ppm, fully compliant with food and pharmaceutical hygiene standards.
Can it work continuously in high-temperature workshops?
Max inlet air temp supports 45°C, air cooling keeps internal temperature below 105°C for non-stop operation.
Is professional shock absorption foundation required for installation?
No, its low-vibration design fits ordinary workshop ground without complex damping base.
Can I monitor and control the machine remotely?
Yes, the PLC system reserves industrial IoT interfaces for remote monitoring and data recording.
How long is the maintenance cycle?
Non-contact rotors greatly extend service intervals, yearly maintenance cost is less than 40% of Roots blowers.

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