Ring Blower GREENCO 3RB-550-1 Series represents a pinnacle in Single-Stage Side Channel Blower technology.
The GREENCO 3RB-550-1 Series represents a pinnacle in Single-Stage Side Channel Blower technology. Engineered for high-demand industrial environments, this series delivers exceptional pressure and vacuum performance. Powered by a robust 3-phase 380V motor, it combines a compact footprint with whisper-quiet, 100% oil-free operation. Built to the prestigious Greenco Classica international standards, it is the premier choice for wastewater treatment systems and automated production lines.
The GREENCO 3RB-550-1 Series is a globally recognized innovation in side channel blower design. Built for stability and continuous operation, this versatile unit functions seamlessly as both a vacuum pump and a compressor. It is the ideal solution for engineers and operators seeking reliability in wastewater management, aquaculture aeration, or vacuum conveying systems.
Crafted from high-grade die-cast aluminum, the 3RB-550-1 Series offers a lightweight yet incredibly durable structure capable of withstanding rigorous industrial conditions. Furthermore, its oil-free design ensures a 100% clean air supply, eliminating any risk of lubricant contamination in your processes.
Primary Uses:
Ideal For:
| Feature | Details |
| Product Type | Ring Blower / Side Channel Blower (Single Stage) |
| Voltage | 3-Phase 380V |
| Housing Material | Die-cast Aluminum |
| Operation Type | 100% Oil-Free |
| Certifications | Greenco Classica / CE |
| Model | Hz | Output (kW) | Max Airflow (m³/h) | Max Vacuum (mbar) | Max Pressure (mbar) |
| 3RB 550-1AAT26 | 50 / 60 | 3.0 / 3.45 | 480 / 565 | -130 / -70 | 120 / 60 |
| 3RB 550-1AAT37 | 50 / 60 | 4.0 / 4.6 | 480 / 565 | -230 / -170 | 200 / 140 |
| 3RB 550-1AAT47 | 50 / 60 | 5.5 / 6.3 | 480 / 565 | -380 / -310 | 330 / 260 |
| 3RB 550-1AAT57 | 50 / 60 | 7.5 / 8.6 | 480 / 565 | -380 / -410 | 500 / 440 |
1. Is the GREENCO 3RB-550-1 suitable for 24/7 continuous operation? Absolutely. The unit is precision-engineered for heavy-duty use. The motor features an advanced cooling system designed specifically for the rigorous, non-stop demands of industrial and wastewater systems.
2. Why is an “Oil-Free” system important? In industries such as food, pharmaceuticals, or aquaculture, even trace amounts of oil contamination can be catastrophic. Our oil-free design guarantees 100% air purity, protecting your products and aquatic life.
3. What accessories are recommended for installation? To maximize the lifespan of your blower, we recommend installing an Air Filter to prevent debris from damaging the impellers and a Pressure Relief Valve to protect the system from over-pressurization.
4. How loud is the unit during operation? GREENCO Ring Blowers are renowned for their low decibel levels compared to traditional blowers. For noise-sensitive environments, an additional silencer can be easily integrated into the system.
5. What is the required maintenance? Maintenance is minimal thanks to the oil-free design. Simply ensure the air filters are cleaned or replaced regularly and keep the motor ventilation clear of obstructions.
6. Can this 3-phase motor be used with a standard 220V home power supply? The 3RB-550-1 Series is natively designed for 3-phase 380V industrial power. To run it on a single-phase 220V supply, you would require an Inverter or should opt for our dedicated single-phase models.
Should you require deeper technical insights or a custom calculation for your specific application, our engineering team at Mechanika is ready to assist. We are committed to providing comprehensive solutions for all your air and water system needs.









