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At MINNUO, we understand that your needs go beyond mere performance—you want a compressor that aligns seamlessly with your operational goals. Our water-lubricated compressors offer powerful discharge and high efficiency, aided by near-isothermal compression that enhances energy savings and extends the lifespan of your system.
Thanks to advanced Germany Schaeffler bearing/Swedish SKF bearing and stainless steel rotors, our compressors operate quietly and with minimal vibration, creating a calm and productive workspace. The oil-free design ensures clean air, free from contamination, giving you peace of mind.
Our intelligent monitoring system makes maintenance a breeze, with modular design simplifying every inspection. MINNUO water-lubricated compressors not only save energy and reduce costs, but they also minimize maintenance expenses and extend operational longevity.
Most importantly, we prioritize environmental responsibility. Clean, safe, and zero-emission operation makes MINNUO a truly sustainable choice. By choosing MINNUO, you’re opting for an environmentally-friendly, economical, and reliable compressed air solution.
| Model |
Maximum working pressure |
FAD | Motor power |
Noise | Cooling water outlet/inlet diameter |
Ouantity of cooling water inlet water 32℃ |
Quantity of lubricating water |
Dimension LxWxH |
Weight | Air outlet |
|---|---|---|---|---|---|---|---|---|---|---|
| Mpa | M³/min | KW/HP | DB | / | T/H | L | mm | KG | / | |
| MN-7.5A-WLPM | 0.8 | 0.3-0.78 | 5.5/7.5 | 57 | 3/4″ | 1.5 | 10 | 800×800×1200 | 320 | 3/4″ |
| 1 | 0.2-0.65 | |||||||||
| MN-10A-WLPM | 0.8 | 0.35-1.17 | 7.5/10 | 57 | 3/4″ | 2 | 10 | 800×800×1200 | 320 | 3/4″ |
| 1 | 0.3-1.05 | |||||||||
| MN-15A-WLPM | 0.8 | 0.54-1.72 | 11/15 | 60 | 1″ | 2.5 | 26 | 1200×755×1130 | 400 | 3/4″ |
| 1 | 0.45-1.42 | |||||||||
| MN-20A-WLPM | 0.8 | 0.75-2.43 | 15/20 | 60 | 1″ | 3.5 | 26 | 1200×755×1130 | 440 | 3/4″ |
| 1 | 0.65-2.17 | |||||||||
| MN-25A-WLPM | 0.8 | 0.9-3.13 | 18.5/25 | 63 | 1″ | 4 | 30 | 1400×900×1285 | 640 | 1″ |
| 1 | 0.9-2.82 | |||||||||
| MN-30A-WLPM | 0.8 | 1.1-3.7 | 22/30 | 63 | 1″ | 5 | 30 | 1400×900×1285 | 640 | 1″ |
| 1 | 0.97-3.21 | |||||||||
| MN-40A-WLPM | 0.8 | 1.55-5.2 | 30/40 | 66 | 1¹/4″ | 7 | 40 | 1400×950×1390 1500×1080×1300(W) |
760 | 1¹/4″ |
| 1 | 1.255-4.43 | |||||||||
| MN-50A-WLPM | 0.8 | 1.91-6.50 | 37/50 | 66 | 1¹/4″ | 9 | 40 | 1580×1000×1485 1500×1080×1300(W) |
880 | 1¹/4″ |
| 1 | 1.60-5.33 | |||||||||
| MN-60A-WLPM | 0.8 | 2.50-8.30 | 45/60 | 68 | 2″ | 10 | 90 | 1800×1300×1680 1800×1360×1670(W) |
1050 | 2″ |
| 1 | 1.91-6.30 | |||||||||
| MN-75A-WLPM | 0.8 | 3.0-10.3 | 55/75 | 69 | 2″ | 12 | 100 | 2050×1300×1690 1800×1360×1670(W) |
1100 | 2″ |
| 1 | 2.60-8.55 | |||||||||
| MN-100A-WLPM | 0.8 | 3.95-13.00 | 75/100 | 72 | 2″ | 18 | 100 | 2180×1350×1705 1800×1360×1670(W) |
1230 | 2″ |
| 1 | 3.40-11.50 | |||||||||
| MN-120A-WLPM | 0.8 | 5.0-16.60 | 90/120 | 73 | 2″ | 20 | 120 | 2550×1500×1825 2200×1550×1800(W) |
2080 | 2¹/2″ |
| 1 | 4.30-14.66 | |||||||||
| MN-150A-WLPM | 0.8 | 6.0-20.2 | 110/150 | 75 | 2″ | 24 | 120 | 2550×1500×1825 2200×1550×1800(W) |
2230 | 2¹/2″ |
| 1 | 5.0-16.66 | |||||||||
| MN-180A-WLPM | 0.8 | 6.75-23.52 | 132/180 | 75 | 2″ | 30 | 120 | 2800×2128×1860 2200×1550×1800(W) |
2360 | 2¹/2″ |
| 1 | 6.0-19.97 | |||||||||
| MN-220A-WLPM | 0.8 | 8.5-28.11 | 160/220 | 77 | 2″ | 35 | 160 | 2700×1800×1970 | 3900 | DN80 |
| 1 | 7.6-25.45 | |||||||||
| MN-250A-WLPM | 0.8 | 10-31.32 | 185/250 | 77 | 2″ | 38 | 160 | 2700×1800×1970 | 4050 | DN80 |
| 1 | 8.72-29.00 | |||||||||
| MN-270A-WLPM | 0.8 | 11.2-36.75 | 200/270 | 78 | 2″ | 42 | 200 | 2700×1800×1970 | 4200 | DN100 |
| 1 | 9.68-31.8 | |||||||||
| MN-300A-WLPM | 0.8 | 12.2-39.6 | 220/300 | 79 | 2″ | 47 | 200 | 2700×1800×1970 | 4400 | DN100 |
| 1 | 11.2-35.7 | |||||||||
| MN-340A-WLPM | 0.8 | 13.5-45.0 | 250/340 | 79 | 2″ | 53 | 200 | 2700×1800×1970 | 4800 | DN100 |
| 1 | 12.3-40.0 |
Oil-free water lubricated screw air compressor is mainly composed of compression element, water cooler, water separator, high efficiency filter element, control system and so on.
Its working principle can be simply described as follows: air enters the compression chamber through the air inlet, and under the rotation of the screw rotor, the air is gradually compressed and finally discharged through the exhaust port.
① zone optimization control, more stable pressure, more energy saving, forced cooling system ensures long life of inverter electronics. ② Stable and smooth start, no mechanical shock; start current close to rated current, no electrical shock, energy saving up to 30-35%.
① Siemens motor, IE3 high efficiency motor. ② Inverter motors (for inverter products) Main electrical components adopt Siemens, Siemens inverter.
① Centrifugal fans are installed in soundproof enclosures for easy disassembly and installation, reinforced coolers to ensure cooling performance, and highly efficient cooling centrifugal fans to ensure excellent energy consumption. ② Noise isolation design allows installation in most workplaces without the need for a separate compressor room.
① 100% oil-free guarantee in the compression chamber of the host, high-quality aluminum and copper shell No risk of corrosion of the host, ceramic twin-screw host with high performance and good stability, no risk of corrosion. ② Hydraulic suspension bearings, rotating on the water film, no mechanical wear and tear, stainless steel shaft no risk of corrosion.
An oil-free water-lubricated screw air compressor is a type of screw compressor that uses water as a lubrication and cooling medium. Unlike traditional oil-lubricated screw compressors, it replaces lubricating oil with water, avoiding oil contamination and ensuring that the output air is completely oil-free. This design is ideal for industries that require high air purity, such as pharmaceuticals, food processing, and electronics manufacturing.
The oil-free water-lubricated system is more energy-efficient than traditional dry oil-free screw compressors. The isothermal compression technology provides higher volumetric efficiency. Compared to dry oil-free screw compressors, the energy savings in two-stage compression can reach up to 15%, and in one-stage compression, it can exceed 25%, significantly reducing operational costs.
Maintenance of an oil-free water-lubricated screw compressor is relatively simple. Due to its integrated design and fewer failure points, daily maintenance can be performed without the need for specialized personnel. The main maintenance tasks involve replacing the air and water filter cartridges, which are easy to do and require fewer consumables, reducing long-term maintenance costs.
No, it does not. Our compressor systems are made from stainless steel alloys that effectively prevent corrosion while ensuring the durability of the system and the purity of the compressed air, guaranteeing no risk of oil contamination.
Choosing the right air compressor should be based on the following factors:
We have a professional technical team that will provide the best recommendations and selection services based on your specific needs.
We offer comprehensive after-sales support to ensure stable operation and high performance of the equipment. Our service includes:
Our global service network ensures timely responses and continuous technical support for your peace of mind.
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Industry and Manufacturing Industrial Compressors
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