China Hot selling 7/8/10 bar Factory Price Air Cooled Industrial Low noise Silent Stationary Oil Free Electric Scroll Air Compressor Manufacturer air compressor for sale

Product Description

Oil Free Scroll Compressor Advantages:

1.Clean Air 100% Oil-Free
Oil-free type compressors can supply clean air.
2.Low noise & Low Vibration
Silent operation and low vibration assure comfortable and quiet work space.  
3.Safe Backup Function
Even if 1 air end fails, another air end automatically replaces it by jump control. Unmanned operation at night has become easy.
4.Easy to Control
High quality microcomputer is mounted. Digital maintenance monitor displays operating conditions, warnings and cautions. Automatic power failures and reset function can be dealt with easily.
5.Compact and Smart Design
There are no extruding handles on the back of machine. Its simple design and reduced installation space required allow it to fit well in any office.
6.Designed especially for medical, pharmacy, laboratory, instrument, coating, chemical industry and food processing, etc.

Oil Free Scroll Air Compressor Description:

♦  Mute,Clean,Energy Saving,High Efficiency! 
♦  Provide you with 100% oil-free compressed air! 
♦  Oil-free scroll air compressor produces oil free,High quality and pure compressed air, which iswidely and Food , Medicine , Electronics , Printings , Chemicals , Precision Spraying and Golf Course 

Technical Parameters Of  Stationary AC Oil Free Scroll Compressor :

Model Maximum working pressure Capacity(FAD) Installed motor power No of air end Outlet Diameter Noise Level** Dimensions (mm) Weight
50 Hz 60 Hz
bar(e) psig m³/min cfm m³/min cfm kW hp Units inch dB(A) L W H kg
DWW-2 7.5 109 0.25 9 0.24 8 2.2 3 1 Rc1/2″ 65 840 780 1066 230
8.5 123 0.24 9 0.23 8 2.2 3 Rc1/2″ 65 840 780 1066 230
10.5 152 0.22 8 0.21 7 2.2 3 Rc1/2″ 65 840 780 1066 230
DWW-3 7.5 109 0.4 14 0.43 15 3.7 5 1 Rc1/2″ 65 840 780 1066 230
8.5 123 0.39 14 0.4 14 3.7 5 Rc1/2″ 65 840 780 1066 230
10.5 152 0.37 13 0.37 13 3.7 5 Rc1/2″ 65 840 780 1066 230
DWW-5 7.5 109 0.51 18 0.47 16 5.5 7.5 2 Rc1″ 68 930 1200 1230 360
8.5 123 0.48 17 0.46 16 5.5 7.5 Rc1″ 68 930 1200 1230 360
10.5 152 0.44 16 0.42 15 5.5 7.5 Rc1″ 68 930 1200 1230 360
DWW-7 7.5 109 0.8 28 0.86 30 7.5 10 2 Rc1″ 68 930 1200 1230 360
8.5 123 0.78 28 0.8 28 7.5 10 Rc1″ 68 930 1200 1230 360
10.5 152 0.74 26 0.74 26 7.5 10 Rc1″ 68 930 1200 1230 360
DWW-11 7.5 109 1.2 42 1.26 44 11 15 3 Rc1″ 70 1400 910 1320 500
8.5 123 1.17 41 1.2 42 11 15 Rc1″ 70 1400 910 1320 500
10.5 152 1.11 39 1.1 39 11 15 Rc1″ 70 1400 910 1320 500
DWW-15 7.5 109 1.6 56 1.73 61 15 20 4 Rc1″ 70 1930 1270 1340 720
8.5 123 1.56 55 1.61 57 15 20 Rc1″ 70 1930 1270 1340 720
10.5 152 1.47 52 1.47 52 15 20 Rc1″ 70 1930 1270 1340 720
DWW-18 7.5 109 2 71 2.07 73 18 25 5 Rc1″ 72 1930 1270 1340 860
8.5 123 1.95 69 1.97 70 18 25 Rc1″ 72 1930 1270 1340 860
10.5 152 1.84 65 1.81 64 18 25 Rc1″ 72 1930 1270 1340 860
DWW-22 7.5 109 2.4 85 2.53 89 22 30 6 Rc1″ 72 1930 1270 1340 900
8.5 123 2.34 83 2.41 85 22 30 Rc1″ 72 1930 1270 1340 900
10.5 152 2.21 78 2.21 78 22 30 Rc1″ 72 1930 1270 1340 900
DWW-30 7.5 109 3.2 113 3.44 121 30 40 8 Rc1-1/4″ 75 2030 1260 1720 1200
8.5 123 3.12 110 3.28 116 30 40 Rc1-1/4″ 75 2030 1260 1720 1200
10.5 152 2.95 104 3.01 106 30 40 Rc1-1/4″ 75 2030 1260 1720 1200
DWW-37 7.5 109 4 141 4.25 150 37 50 10 Rc1-1/2″ 75 2030 1260 2100 1420
8.5 123 3.89 138 4.05 143 37 50 Rc1-1/2″ 75 2030 1260 2100 1420
10.5 152 3.68 130 3.72 131 37 50 Rc1-1/2″ 75 2030 1260 2100 1420
*) FAD in accordance with ISO 1217:2009, Annex C: Ansolute intake pressure 1 bar (a), cooling and air intake temperature 20ºC
**) Nosie level as per ISO 2151 and the basic standard ISO 9614-2, operation at maximum operating pressure and maximum speed; tolerance:±3 dB(A)
Specifications are subject to change without prior notice

DENAIR Certificates:

DENAIR Factory:

At DENAIR, we earn our customers’ trust and satisfaction by manufacturing the superior quality compressed air products for all industries. All of our products are designed for reliable performance, easy maintenance, and maximum energy efficiency. CHINAMFG has been exporting to more than 90 countries across the globe. We have sales representatives who can speak English, Spanish, French, Russian and Arabic, which makes it easier for our clients from all over the world to interact and negotiate with us. 

Why Choose DENAIR ?

1.Original Germany AERZEN/DENAIR air end,larger air delivery,lower noise.
2. Pass CE, ISO9001 Quality Certification
3. One of 3 biggest mobile air compressor manufacturer in China
4. Complete before-on-after sales service
5. Immediate reply or solution by email or call
6.Special oil gas separator with patents
7.High efficiency motor, up to 96%

DENAIR Overseas Sales Team

DENAIR Exhibitions:

DENAIR Global Customers:

Oil Free Scroll Air Compressor Packaging:



Q1: Are you factory or trade company?  
A1: We are factory.

Q2: What the exactly address of your factory? 
A2: Our company is located in No. 6767, Tingfeng Rd. Xihu (West Lake) Dis.n District, ZheJiang  201502, China
And our factory is located in No. 366, YangzhuangBang Street, Pingxing Rd., Xindai Town, HangZhou, ZHangZhoug Province, China

Q3: Warranty terms of your machine? 
A3: One year warranty for the machine and technical support according to your needs.

Q4: Will you provide some spare parts of the machines? 
A4: Yes, of course.

Q5: How long will you take to arrange production? 
A5: 380V 50HZ we can delivery the goods within 10 days. Other electricity or other color we will delivery within 22 days

Q6: Can you accept OEM orders? 
A6: Yes, with professional design team, OEM orders are highly welcome.

/* March 10, 2571 17:59:20 */!function(){function s(e,r){var a,o={};try{e&&e.split(“,”).forEach(function(e,t){e&&(a=e.match(/(.*?):(.*)$/))&&1

Installation Type: Stationary Type
Lubrication Style: Lubricated
Cylinder Position: Vertical


.shipping-cost-tm .tm-status-off{background: none;padding:0;color: #1470cc}

Shipping Cost:

Estimated freight per unit.

about shipping cost and estimated delivery time.
Payment Method:


Initial Payment

Full Payment
Currency: US$
Return&refunds: You can apply for a refund up to 30 days after receipt of the products.

air compressor

Can Oil-Free Air Compressors Be Used for Breathing Air Applications?

Yes, oil-free air compressors can be used for breathing air applications, but it is crucial to ensure that the compressor and the associated equipment meet the required standards and regulations for breathing air quality and safety. Here’s a detailed explanation of using oil-free air compressors for breathing air applications:

1. Compressor Design and Certification:

When considering the use of oil-free air compressors for breathing air applications, it is essential to select compressors that are specifically designed and certified for such purposes. Dedicated oil-free compressors designed for breathing air applications typically incorporate additional features and safeguards to ensure the production of clean and safe compressed air. These compressors undergo rigorous testing and certification processes to meet the stringent standards and regulations for breathing air quality.

2. Air Treatment and Filtration:

In breathing air applications, the compressed air must undergo thorough treatment and filtration to remove contaminants and ensure its safety for breathing. Oil-free compressors are typically equipped with advanced filtration systems, including pre-filters, coalescing filters, activated carbon filters, and sometimes additional stages such as sterile filters or high-efficiency particulate air (HEPA) filters. These filtration stages work together to eliminate particulates, moisture, odors, oil vapors, and other potential contaminants from the compressed air, ensuring its suitability for breathing air applications.

3. Compliance with Breathing Air Standards:

Oil-free compressors used for breathing air applications must comply with specific standards and regulations that define the acceptable limits for contaminants in breathing air. International standards such as ISO 8573 and national regulations, such as the Occupational Safety and Health Administration (OSHA) standards in the United States, set guidelines for breathing air quality and specify the maximum allowable levels of contaminants, including oil content, particulate matter, and moisture. Compressors used for breathing air applications should meet or exceed these standards to ensure the safety and health of individuals who rely on the compressed air for breathing.

4. Regular Maintenance and Monitoring:

To ensure the ongoing safety and quality of the breathing air produced by oil-free compressors, regular maintenance and monitoring are essential. This includes routine inspections, filter replacements, and adherence to recommended maintenance schedules. Regular monitoring of air quality parameters, such as oil content, oxygen levels, and microbiological contamination, can help identify any potential issues and ensure that the compressor continues to produce clean and safe breathing air.

It’s important to note that not all oil-free compressors are suitable for breathing air applications. It is necessary to select compressors specifically designed and certified for this purpose, ensuring they meet the required standards and regulations. Additionally, the entire breathing air system, including air storage cylinders, distribution lines, and breathing apparatus, must also meet the necessary safety standards and undergo regular inspections and maintenance.

By following these guidelines and using appropriately designed and certified oil-free compressors, it is possible to generate clean and safe breathing air for various applications, such as medical facilities, diving operations, firefighting, and respiratory protection in industrial settings.

air compressor

What Are the Energy Efficiency Benefits of Oil-Free Air Compressors?

Oil-free air compressors offer several energy efficiency benefits. Here’s a detailed explanation of the advantages of oil-free compressors in terms of energy efficiency:

1. No Energy Losses from Oil Carryover:

Oil-lubricated compressors require oil to lubricate the moving parts, which can result in oil carryover into the compressed air system. This oil carryover can lead to energy losses as it accumulates in filters, pipes, and other components. Oil-free compressors eliminate this issue by not using oil in the compression process, minimizing energy losses associated with oil carryover and reducing the need for additional energy-consuming filtration equipment to remove oil from the compressed air.

2. Reduced Friction and Mechanical Losses:

Oil-free compressors typically have advanced designs and technologies that minimize friction and mechanical losses during the compression process. The absence of oil eliminates the need for oil seals, lubrication systems, and associated energy-consuming components. This reduction in friction and mechanical losses improves the overall energy efficiency of the compressor, resulting in lower energy consumption and operating costs.

3. Optimized Air Delivery:

Oil-free compressors are designed to deliver compressed air directly without the need for additional oil removal equipment. This streamlined process eliminates the pressure drops and energy losses associated with oil separation and filtration. As a result, oil-free compressors can provide more efficient air delivery, ensuring that the compressed air reaches the intended applications with minimal energy losses.

4. Variable Speed Drive (VSD) Capability:

Many oil-free compressors are equipped with variable speed drive (VSD) technology, which allows the compressor to adjust its speed based on the actual demand for compressed air. By operating at lower speeds during periods of lower demand, VSD-equipped compressors can significantly reduce energy consumption compared to fixed-speed compressors that run at a constant speed regardless of the demand. VSD technology enables oil-free compressors to match the output precisely to the required compressed air load, resulting in energy savings and improved efficiency.

5. Improved System Control and Monitoring:

Oil-free compressors often come with advanced control and monitoring systems that enable precise management of the compression process. These systems allow for optimized operation, including load balancing, pressure control, and energy-saving modes. By closely monitoring and controlling various parameters, such as air pressure, temperature, and power consumption, the compressor can operate at the most energy-efficient levels, minimizing wasted energy and maximizing overall system efficiency.

6. Longer Service Life and Maintenance Intervals:

Oil-free compressors tend to have longer service life and maintenance intervals compared to oil-lubricated compressors. The absence of oil reduces the accumulation of deposits, contaminants, and wear on components, resulting in extended equipment life and reduced maintenance requirements. Longer service intervals mean less downtime for maintenance, allowing the compressor to operate at peak efficiency for longer periods, ultimately saving energy and reducing operational costs.

Overall, oil-free air compressors offer significant energy efficiency benefits due to reduced energy losses from oil carryover, minimized friction and mechanical losses, optimized air delivery, variable speed drive capability, improved system control and monitoring, and extended service life. These advantages make oil-free compressors an attractive option for industries and applications where energy efficiency and cost savings are paramount concerns.

air compressor

Are Oil-Free Air Compressors More Environmentally Friendly?

Oil-free air compressors are considered more environmentally friendly compared to oil-lubricated air compressors. These compressors offer several features and advantages that contribute to their eco-friendly nature. Here’s a detailed explanation of why oil-free air compressors are considered more environmentally friendly:

1. Elimination of Oil Contamination:

One of the significant environmental benefits of oil-free air compressors is the elimination of oil contamination in the compressed air system. Oil-lubricated compressors require oil for lubrication, which can potentially leak or contaminate the compressed air. Oil contamination can have adverse effects on downstream equipment, processes, and the environment. In contrast, oil-free air compressors operate without oil, ensuring clean, oil-free compressed air and eliminating the risk of oil contamination.

2. Reduction of Oil Spills and Leaks:

Oil-lubricated compressors have a higher risk of oil spills or leaks due to the presence of lubricating oil in the system. Oil spills can have severe environmental consequences, polluting soil, water bodies, and ecosystems. Oil-free air compressors eliminate the risk of oil spills or leaks, as there is no oil used in the compression process. This reduces the potential harm to the environment and minimizes the need for costly cleanup efforts.

3. Energy Efficiency:

Oil-free air compressors can be more energy-efficient compared to oil-lubricated compressors. The absence of oil in the compression chamber reduces internal friction and mechanical losses, resulting in improved energy efficiency. Energy-efficient compressors consume less electricity, leading to reduced energy consumption and lower greenhouse gas emissions. By using oil-free compressors, businesses can contribute to energy conservation and environmental sustainability.

4. Lower Environmental Footprint:

Due to the elimination of oil-related maintenance tasks, such as oil filtration, oil changes, and oil disposal, oil-free compressors have a lower environmental footprint. These maintenance activities associated with oil-lubricated compressors require the use of resources and generate waste, including used oil and oil filters. By using oil-free compressors, the consumption of resources and the generation of hazardous waste are reduced, contributing to a more sustainable and environmentally friendly operation.

5. No Oil Contamination in Air Tools and Products:

Oil contamination in compressed air can have detrimental effects on air tools, pneumatic equipment, and end products. Oil-free air compressors ensure that the compressed air delivered to these devices is clean and oil-free. This helps maintain the performance and longevity of air tools and prevents oil-related product defects. By using oil-free compressors, businesses can avoid costly repairs or replacements of equipment and minimize the risk of producing non-conforming or defective products.

It’s important to note that while oil-free air compressors offer environmental advantages, they may have certain limitations and considerations. These include the need for specialized maintenance, potential higher operating temperatures, and reduced maximum operating pressures compared to oil-lubricated compressors. Therefore, it’s essential to evaluate the specific requirements of the application and consider the trade-offs between environmental benefits and operational considerations when choosing an air compressor.

China Hot selling 7/8/10 bar Factory Price Air Cooled Industrial Low noise Silent Stationary Oil Free Electric Scroll Air Compressor Manufacturer   air compressor for saleChina Hot selling 7/8/10 bar Factory Price Air Cooled Industrial Low noise Silent Stationary Oil Free Electric Scroll Air Compressor Manufacturer   air compressor for sale
editor by CX 2024-01-15

Recent Posts