China Standard China Professional Suppliers 2bar 3bar 4bar 5bar Low Pressure Water-Injected 100% Oil-Free Pm VSD Single Screw Air Compressors for Food and Medical air compressor for car

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China Standard China Professional Suppliers 2bar 3bar 4bar 5bar Low Pressure Water-Injected 100% Oil-Free Pm VSD Single Screw Air Compressors for Food and Medical Air Compressor for Car

Product Description

The 2~40bar DIRECT-DRIVE WATER-INJECTED OIL-FREE SCREW AIR COMPRESSOR (PM VSD) is a highly efficient and reliable air compressor suitable for various applications. With its low temperature operation and simple structure, this compressor offers numerous advantages over traditional oil-free screw air compressors.

Key Features:

  1. Low temperature means more efficiency: With an exceptionally low running temperature of less than 60ºC, near isothermal compression is achieved. The superior cooling capability of water removes the heat and gives more air per kW of power. This also eliminates the need for an internal cooler and aftercooler, reducing pressure drop to a minimum.
  2. Cutting the maintenance cost: Spare parts only need air filter elements and water filter elements. Low operating temperature ensures the long service life of the screw air end, avoiding expensive maintenance costs for the screw rotor. Low temperature reduces the stress on other components, ensuring long life.
  3. Avoiding the costs of extra energy to combat pressure drop: These costs, although not apparent at the time of purchase, are very high and contribute substantially to the total cost of ownership.
  4. No Gearbox: No need for associated oil lubrication.
  5. Simple structure: Fewer moving parts than the dry oil-free screw air compressor, meaning there is less to go wrong, while balance bearing loads extend the compression element service life for low-cost operation.

Product Parameters

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Other Products

Aside from the 2~40bar DIRECT-DRIVE WATER-INJECTED OIL-FREE SCREW AIR COMPRESSOR (PM VSD), EVER-POWER GROUP also offers a wide range of high-quality industrial products:

  • Oil-injected Screw Air Compressor (2~16 bar)
  • All-in-1 Screw Air Compressor with Tank, Dryer, and Filters (7~16 bar)
  • Single-phase Small Screw Air Compressor for Home use (8~10 bar)
  • Water-injected Oil-free Screw Air Compressor (2~40 bar)
  • Oil-free Scroll Air Compressor (8~12 bar)
  • Diesel & Electric Engine Portable Screw Air Compressor (8~30 bar)
  • Air Dryer, Air tank, Filters, and other Spare parts


  1. What are the advantages of the 2~40bar WATER-INJECTED OIL-FREE SCREW AIR COMPRESSOR over traditional oil-free screw air compressors?
  2. Is the 2~40bar WATER-INJECTED OIL-FREE SCREW AIR COMPRESSOR suitable for food and medical applications?
  3. Does the 2~40bar WATER-INJECTED OIL-FREE SCREW AIR COMPRESSOR require a gearbox for operation?
  4. What is the temperature range of the 2~40bar WATER-INJECTED OIL-FREE SCREW AIR COMPRESSOR?
  5. Can the 2~40bar WATER-INJECTED OIL-FREE SCREW AIR COMPRESSOR handle low pressure applications?

All content on the page comes from the Internet. The content is only used as a reference for product selection. Our products are replacement parts rather than original spare parts; we are not the holders of the original trademark of the content, and our products are only suitable for after-sales replacement parts, not original spare parts. Our replacement parts can perfectly fit the original spare parts. If you need to purchase original spare parts, please contact the original supplier to purchase.

Performance Characteristics of Water Injected Compressor

1. Enhanced Cooling Efficiency

The water injected compressor boasts superior cooling efficiency due to the injection of water into the compression chamber. This process aids in reducing the compressed air’s temperature, leading to improved cooling performance and a more energy-efficient operation.

2. Reduced Energy Consumption

By utilizing the water injection technique, the compressor can achieve significant energy savings. The cooled air requires less energy for subsequent processes, resulting in reduced power consumption and increased overall efficiency.

3. Extended Equipment Lifespan

The water injection process helps to mitigate the harmful effects of high temperatures on compressor components. By lowering the compressed air temperature, the wear and tear on internal parts are minimized, resulting in a longer lifespan for the equipment.

4. Enhanced Air Quality

Water injected compressors also contribute to improved air quality. The water acts as a natural filter, trapping and removing contaminants from the compressed air, resulting in cleaner and healthier air supply for various applications.

Types and Characteristics of Water Injected Compressor

1. Oil-injected Water Injected Compressor

This type of compressor combines the benefits of water injection with traditional oil lubrication. It provides efficient cooling and lubrication, ensuring smooth operation and minimal wear on internal parts.

2. Oil-free Water Injected Compressor

For applications where oil contamination is a concern, the oil-free water injected compressor offers a viable solution. It eliminates the need for oil lubrication, ensuring clean and oil-free compressed air output.

Advantages of Water Injected Compressor Materials

1. Stainless Steel

Water injected compressors made of stainless steel exhibit excellent corrosion resistance, making them ideal for applications in corrosive environments such as the chemical industry.

2. Aluminum Alloy

Compressors constructed with aluminum alloy offer lightweight and cost-effective solutions. They are commonly used in industries where portability and affordability are key factors, such as electronics manufacturing.

Application of Water Injected Compressor

Water injected compressors find wide-ranging applications across various industries, including:

1. Food and Beverage Industry

The use of water injected compressors ensures the delivery of clean and contaminant-free compressed air, maintaining the product quality and safety standards in food and beverage processing.

2. Pharmaceuticals and Healthcare

Water injected compressors play a critical role in pharmaceutical manufacturing, where air quality is crucial for maintaining the integrity and sterility of pharmaceutical products and medical equipment.

3. Electronics Manufacturing

The electronics industry relies on water injected compressors to provide clean and dry compressed air, ensuring the optimal performance and reliability of delicate electronic components and manufacturing processes.

4. Chemical Industry

Water injected compressors are essential in chemical processing, where the elimination of oil contamination and the prevention of corrosion are vital for maintaining the quality and safety of chemical products.

Future Development Trends and Opportunities

The future of water injected compressor products looks promising, with several development trends and opportunities:

1. Increased Energy Efficiency

Advancements in technology will continue to drive the development of more energy-efficient water injected compressors, helping industries reduce their carbon footprint and operating costs.

2. Integration of IoT and Automation

The integration of Internet of Things (IoT) technology and automation in water injected compressors will enable real-time monitoring, predictive maintenance, and improved overall system performance.

Choosing a Suitable Water Injected Compressor

When selecting a water injected compressor, consider the following aspects:

1. Clear Requirements

Define your specific needs and operating conditions to ensure the selected compressor meets your performance requirements.

2. Material Selection

Choose a compressor constructed with materials suitable for your industry and application, considering factors such as corrosion resistance and weight.

3. Design Optimization

Look for compressors with optimized designs that promote energy efficiency, reliability, and ease of maintenance.

4. Suppliers and After-sales Service

Select reputable suppliers who offer reliable products and comprehensive after-sales support to ensure smooth operation and prompt assistance when needed.

5. Cost-effectiveness and Quality Control

Evaluate the overall cost-effectiveness of the compressor, considering not only the initial purchase cost but also long-term maintenance and energy consumption. Additionally, ensure the compressor meets quality standards and certifications.

Finally, always prioritize thorough research and consultation with industry experts to make an informed decision when choosing a suitable water injected compressor.

Author: Dream


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