China Wholesaler Stationary 200kw 270HP Direct Drive 7bar 8bar 10bar Water-Injected Oil-Free Rotary Single Screw Type Pm VSD Air Compressor

Product Description


1. Enhanced Efficiency with Low Temperature

Our water-injected oil-free screw air compressor operates at a low running temperature of less than 60ºC, ensuring near isothermal compression. This exceptional cooling capability allows for more air per kW of power, eliminating the need for an internal cooler and aftercooler. The reduced power consumption minimizes pressure drop, resulting in optimal efficiency.

2. Cost-Effective Maintenance

With spare parts limited to air filter elements and water filter elements, our screw air compressor significantly cuts down on maintenance costs. The low operating temperature also extends the lifespan of the screw air end, resulting in long-term savings by avoiding expensive maintenance and replacement expenses.

3. Efficient Energy Usage

Our water-injected oil-free screw air compressor eliminates the need for extra energy to combat pressure drop, reducing the hidden costs associated with energy consumption. This ultimately contributes to a lower total cost of ownership.

4. Gearbox-Free Design

Our screw air compressor does not require an associated oil lubrication system, eliminating the need for gearbox maintenance and reducing overall operational costs.

5. Reliable and Simple Structure

Compared to dry oil-free screw air compressors, our water-injected oil-free screw air compressor has fewer moving parts, resulting in a more reliable and robust structure. The balance bearing loads also extend the compression element service life, ensuring cost-effective operation.

Product Parameters

Other High-Quality Products

2~10bar Oil-injected 7~16bar All-in-1 Small Single-phase Screw Air Compressor

2~40bar 100% Oil-free 8~12bar 100% Oil-free Diesel Engine Portable Screw Air Compressor

Main Product

What we can supply:

* 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

Company Profile

EVER-POWER GROUP is a leading supplier of various industrial products, specializing in agricultural gearboxes, power output shafts, sprockets, fluid couplings, worm gear reducers, gears and racks, roller chains, pulleys and pulleys, planetary gearboxes, timing pulleys, bushings, and more. We prioritize high-quality products, competitive prices, and excellent customer service. We welcome customization requests based on drawings and samples.


Q1: How does the low temperature of the water-injected oil-free screw air compressor enhance efficiency?

A1: The low running temperature enables near isothermal compression, resulting in more air per kW of power and reduced power consumption.

Q2: What maintenance costs are cut down with the water-injected oil-free screw air compressor?

A2: The spare parts only require air filter elements and water filter elements, reducing expensive maintenance costs for the screw rotor.

Q3: How does the water-injected oil-free screw air compressor avoid energy costs due to pressure drop?

A3: By eliminating the need for extra energy to combat pressure drop, our compressor reduces the hidden costs associated with energy consumption.

Q4: What advantage does the gearbox-free design of the screw air compressor offer?

A4: The absence of an associated oil lubrication system reduces maintenance costs and simplifies the compressor’s structure.

Q5: How does the screw air compressor’s structure ensure reliable operation?

A5: The screw air compressor has fewer moving parts compared to dry oil-free compressors, minimizing potential failures, and providing a long service life.

Note: All content on this page is sourced from the Internet and should be used as a reference for product selection. Our products are replacement parts, not original spare parts. We do not hold the original trademarks. If you require original spare parts, please contact the original supplier.

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


Water Injected Compressor

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