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The characteristics determined by the partial pressure of water vapor in compressed air and the temperature of compressed air are used for cooling, dehydration and drying. While keeping the compressed air pressure basically unchanged, lowering the temperature of the compressed air can reduce the water content in the compressed air, and the excess water vapor will condense into liquid. The refrigerated dryer uses this principle to dry compressed air using refrigeration technology, so the refrigerated dryer has a refrigeration system. Refrigerated air dryer working Refrigerated air dryer how it works The refrigerated dryer sucks the low-pressure (low-temperature) refrigerant in the evaporator into the compressor cylinder. After the refrigerant vapor is compressed, the pressure and temperature increase at the same time; the high-pressure and high-temperature refrigerant vapor is pressed to the condenser. The higher temperature refrigerant steam exchanges heat with the lower temperature cooling water or air. The heat of the refrigerant is taken away by water or air and condensed, and the refrigerant vapor becomes a liquid.

The refrigerated dryer sucks the low-pressure (low-temperature) refrigerant in the evaporator into the compressor cylinder. After the refrigerant vapor is compressed, the pressure and temperature increase at the same time; the high-pressure and high-temperature refrigerant vapor is pressed to the condenser. The higher temperature refrigerant steam exchanges heat with the lower temperature cooling water or air. The heat of the refrigerant is taken away by water or air and condensed, and the refrigerant vapor becomes a liquid.

Pure water instead of lubricating oil is used in air end for lubrication. Air end and all parts contacting with water are made of 304 food grade stainless steel. Compressed air passes TUV oil free test and also meets requirements of FDA and GMP. With no oil in the whole machine, maintenance is simple which only requires the replacement of air and water filter. Water injected screw compressor adopts a direct coupling method between the air end and the motor, resulting in high transmission efficiency. Due to the direct injection of water for cooling circulation, the unit operates at a very low temperature which is around 45 degrees Celsius. Working Principle Of CMN No Oil water injected compressor The single screw air end is composed of a main screw and two symmetrically arranged flat star wheels to form a meshing pair, installed inside the stainless steel shell. The screw's groove, the inner wall of the air end shell, and the tooth surface of the star wheel constitute the compression chamber. The motor directly drives the rotation of the screw shaft, which drives the rotation of the star wheel. The gas enters the screw groove through the suction port, undergoes compression, and is then expelled through the exhaust port on the air end shell. There are spray holes on the air end shell for injection of lubricating oil or water into the compression chamber, serving as sealing, cooling, and lubricating functions.

Pure water instead of lubricating oil is used in the air end for lubrication. The air end and all parts in contact with water are made of 304 food-grade stainless steel. Compressed air passes the TUV oil-free test and also meets the requirements of the FDA and GMP.

Oil Injected compressor are widely used in various industries to provide compressed air power. CMN oil injected screw air compressor adopts patented shaft sealless design to ensure that the air end will never leak oil. The unique single-screw type air end achieves twelve times of compression in one rotation, with high efficiency. The ultra-high machining accuracy allows the air end to achieve good sealing and lubrication effects by spraying only a small amount of lubricating oil so the oil content can be less than 2ppm to meet most usage requirements. OIL INJECTED SCREW COMPRESSOR VS RECIPROCATING PISTON COMPRESSOR Piston air compressors use the piston to reciprocate in the cylinder to compress the air. They have high noise and vibration and many wearing parts. After the piston rings are worn, the air volume will decrease causing the decreased efficiency.

Oil injection screw compressor are widely used in various industries to provide compressed air power. CMN industrial oil free vs oil injected compressor adopts a patented shaft sealless design to ensure that the air end will never leak oil.

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The air storage tank can store a certain amount of compressed air, to make sure that pressure of output air is relatively stable. It can also reduce the temperature in the air path and remove some water, dust, and impurities. The air storage tank is made of high-quality materials(carbon steel or stainless steel) and uses advanced welding technology. It has passed ISO9001 certification and can pass any safety inspection.

Refrigerated Air Dryer. Refrigerated Air Dryer Manufacturers in India. we have range of air dryer series's. Compressed Air Dryer Manufacturers

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The high pressure micro oil screw air compressor crafted by CMN has an air supply pressure of 20 to 45 kg. The air end is lubricated with high-quality lubricating oil and has two stages screw compression air end, which can be adapted to most high-pressure compressed air supplies.

CMN oil-free high pressure screw air compressor, with an air supply pressure of 20 to 40 bar, can be adapted to high-standard gas processes such as PET bottle blowing and blow molding. The whole high pressure oil free air compressor does not contain any lubricating oil to ensure that the outlet compressed air is absolutely oil-free. The screw-type air end performs two-stage compression with low vibration and noise. The oil free high pressure air compressor adopts an advanced two stages dual-drive design and is equipped with two permanent magnet variable frequency motors with an efficiency of up to 97%. The inverter drive always supplies air with optimal efficiency. Maintenance is simple, only the air filter and water filter need to be replaced, reducing maintenance costs by 50% to 80%.

With more than 20 years manufacturing experience in compressed air filed, CMN, as a oil free screw compressor manufacturer, the products including oil-less air compressor, oil-free air compressor, all kinds of special gas compressor and matched after treatment equipments. Certified with ISO9001, ISO14001, TUV, CE and other certifications, our products offers various compressed air solutions with FAD ranging from 15cfm to 2087cfm, pressure ranging from 2bar to 45bar. With continued R&D investment, CMN, the oil free screw compressor manufacturer has launched world's first 40bar oil free screw air compressor with water lubricated air end and world's first 1.2MPa scroll air compressor which filled international gap.

Thermal adsorption type - uses part of the dried compressed air to purge the adsorbent after decompression to achieve "regeneration" of the adsorbent; Microthermal adsorption type - the difference from the non-thermal adsorption type is that the compressed air used for purging is heated by an electric heater.

Compressor Problems and Solutions Based on our extensive product system, we are able to provide oil-free compressed air for industries such as pharmaceuticals, food and beverages, electronic semiconductors, and textiles; and provide energy-saving and efficient compressed air for industries such as automobile manufacturing, chemicals, petroleum and petrochemicals, coal, and electricity. All in all, air compressor uses and applications in industries are very common. No matter what type of industry are you in, CMN can always provide you cost-effective compressors with high quality.

Since the founder Mr. B. Zimmern proposed the single-screw compression structure in 1960, CMN has brand history of over 60 years. We have formed a set of strict production management systems and processes to ensure the stability of the machines we manufactured; based on our R&D team of more than 30 people, CMN has always been a leading enterprice that focuses on innovation in the pneumatic industry. CMN has three factories and more than 20 dealers around the world, our corporate purpose has always been to focus on customer needs, continuously improve products, and realize the value of CMN.

During the compression process, the axial and radial forces on the main screw mutually offset, allowing it to withstand pressures of up to 40 bar. Simultaneously, the vibration and noise during operation are much lower than traditional air end.

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Relying on the low operating temperature of the air end, CMN has developed a unique screw hydrogen compressor with a flow range of 5 to 59m3/min and a pressure range of 4 to 45bar. Since water is directly injected into the air end for compression, the operating temperature of the host will usually not be higher than 45 degrees Celsius, so safety can be guaranteed.

MEDICAL OIL FREE SCREW & SCROLL AIR COMPRESSOR FOR HOSPITAL USE The compressed air in hospitals will contact with patient's body directly. The medical air compressor for hospital use is even related to the patient's life safety. Currently the main problem is that there isn't professional directions and specifications for hospital air system construction, the demand side often ignores this too. Medical air compressor for hospital use mainly include: Used for respiratory system and anesthesia system.

APPLICATION OF AIR COMPRESSOR IN DIFFERENT INDUSTRIES Compressed air is widely used in various industries. Thus air compressor applications in industry are also very common. In addition to some major applications, air compressors are also the following industries:

LOW PRESSURE SCREW OILLESS AIR COMPRESSOR The working principle of the pure oil-free screw compressor is the same as that of the normal pressure oil-free screw air compressor. The difference is that low pressure screw air compressor is equipped with a low-pressure stainless steel air end with a compression ratio of 1.2 to 4, and the air supply pressure of the unit is 1.2 to 4 bar. The unit has good stability and low energy consumption.

OIL FREE SCREW & SCROLL AIR COMPRESSOR IN PHARMACEUTICAL INDUSTRY In pharmaceutical factories, compressed air is mainly used in filling machines for liquid preparations, granulators, pulping machines, filling machines, packaging machines, and printers for solid preparations, and extraction tanks in the extraction process. In addition, there are gases for testing, material transportation, drying, purging, pneumatic instruments, automatic control gases, etc.

OIL FREE SCREW & SCROLL AIR COMPRESSOR CHINA SOLUTIONS FOR PET BLOWING The raw materials of plastic bottles must meet relevant national standards, especially medicinal bottles must meet medical and health requirements. There are four common raw materials for plastic bottles, polypropylene (PP), polyester (PET), polystyrene (PS), polyethylene (PE), etc. With PET compressed air, the materials are made into different forms of bottle containers.