"Water cooled" and "water lubricated" are often confused, yet they solve different problems. A water cooled oil free air compressor uses water to remove heat from the machine; CMN goes further by also using water inside the chamber as the lubricant. The combination is especially powerful for plants with high duty and limited ventilation.
Water cooled: a heat exchanger removes compressor heat via water jacket or circuit.
Water lubricated: water is inside the compression chamber as the sealing/cooling medium.
CMN's design is water-lubricated and can be paired with water-cooling for the package.
Oil-free machines cannot rely on oil to carry heat away, so thermal management is critical.
Effective cooling protects rotors, seals, and bearings.
It stabilizes discharge temperature and air quality.
It reduces the energy lost as waste heat.
CMN's near-isothermal compression (~40–50°C) already limits heat at the source; water cooling handles the remainder at the package level.
Benefit | Source |
Stable output | Lower thermal drift |
Longer life | Less heat stress |
Smaller footprint | No large air-cooled radiator |
Quiet floor | Less fan noise |
A water cooled oil free air compressor suits:
Plants with limited ventilation or high ambient temperatures.
Continuous-duty bottling, food, and pharma lines.
Sites where water infrastructure is already available.
CMN's water-lubricated single-screw range (CM75G to CM320GPV, 2–40 bar) integrates with water-cooling packages for these conditions, with PMVSD options to manage energy.
A water cooled oil free air compressor manages heat where oil-free designs need it most. CMN pairs water cooling with its water-lubricated, Class 0 single-screw compression to deliver stable, durable, oil-free air in demanding environments.
CTA: Contact CMN to specify a water cooled oil free air compressor for your site, or send your duty and climate data for a quote.
sales@cmncompressor.com 
+86-15325678508 
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