```html

CM90BV Variable Frequency Oil-free Screw Air Compressor Of Water Lubrication

Advantages of our oil-free air compressor

Our oil-free screw air compressors boast numerous benefits:

1. Truly oil-free screw air compressor

Our compressors are genuinely oil-free, with no trace of lubricating oil in the engine. Instead, they use pure water to cleanse the compressed air of any acidic or alkaline substances, making it even more pure and suitable for various industries.

2. Lifelong stable and reliable oil-free screw air compressor

All pipelines are built with either 304, 316 stainless steel or corrosion-resistant materials. The use of direct connection technology between the motor and the main engine ensures the maximum speed does not exceed 2980rpm/min, providing a longer lifespan for the bearing and rotor.

3. More energy-efficient oil-free screw air compressor

By utilizing direct water cooling for the rotor and body, isothermal compression efficiency is significantly improved. This is further enhanced by the dual compression chamber technology, which allows one rotor to have two compression chambers, surpassing two-stage compression and eliminating the need for intermediate cooling to reduce power consumption loss.

4. Lower maintenance cost oil-free screw air compressor

The daily maintenance of our compressor only requires the replacement of the air filter and water filter, significantly reducing the cost and time required for maintenance.

Working principle of our oil-free screw air compressor

The oil-free screw air compressor works by using a pair of main screws, namely the air pressure screw and the rotating screw, to complete the compression process. These screws are typically made of high-strength alloy steel and have a precise helical shape. The rotation of the screws gradually compresses the air, increasing its pressure. This process generates heat, hence the need for a cooling system to reduce the temperature. To ensure the quality of the air, the compressed air also needs to be cleaned by a filtering system to remove potential contaminants and particles.

Applications of our oil-free screw air compressor

Oil-free screw air compressors are used in a variety of industries:

1. Food and beverage industry

Oil-free air compressors provide an oil-free air supply, eliminating the risk of oil contamination, and are suitable for pneumatic operations, packaging, and processing in the food and beverage industry.

2. Medical industry

Oil-free air compressors provide oil-free, sterile air, suitable for surgical rooms, laboratories, and other pneumatic operations in hospitals.

3. Pharmaceutical industry

oil-free air compressors provide oil-free, sterile air that meets pharmaceutical standards, suitable for pneumatic transport, packaging, and sterilization in the pharmaceutical manufacturing process.

4. Electronics industry

Oil-free air compressors provide clean air supply, preventing oil contamination damage to electronic components, and are suitable for pneumatic tools, electronic component blow-off, and cleaning applications in the electronics industry.

About our company

Our company is a leading manufacturer of high-end screw compressors that use water for internal cooling and lubrication. All of our products have been accredited by TUV class 0 oil-free certification, CE certification, ISO9001 certification, and TS16949 certification. We are the first company to launch the secondary compression high-pressure micro-oil screw compressor, with a pressure of 4.0MPa, and the world's first 4.0MPa pressure oil-free screw compressor and 1.25MPa pressure oil-free vortex compressor.

Author: Miya

```