China Professional Oil Free Stationary 40% Energy Saving AC Electrical Rotary Screw Air Compressor best air compressor

Product Description

0.5-80 M3/Min 6-40 Bar 5.5-400 Kw Electrical Stationary Industrial AC Power Direct Driven/Coupled Rotary Screw Air Compressors Advantages

1.DENAIR Enhanced energy saving screw air compressor reached the super energy saving level
 
2.Energy Efficient Index 1(EEI 1) approved according to GB19153-2009, the energy consumption is 10%~15% lower than EEI 2.
 
3.CHINAMFG air compressor design with 72 types of technology patent, real bigger air flow 
 
4.State-of-the-art screw element, original Germany CHINAMFG air end, ladvanced SAP profile design, superior Sweden CHINAMFG element bearings
 
5.CHINAMFG air compressdor dopts world-renowned components, such as Schneider electronics from France, DENAIR filters from Germany, Danfoss pressure sensor from Denmark, etc. contribute to guarantee the compressor longer service life.
 
6.Smart touch screen design and 0 pressure drop design
 
7.Higher efficiency cooling system and electrical motor
 
8.Stainless steel pipes, reasonable inner design, ensure long service life without maintenance.

Technical Parameters Of Energy Saving Rotary Screw Air Compressor 

Model Maxinmum working Capacity(FAD)* Installed motor power Driving mode& Noise Dimensions(mm) Weight Air outlet
pressure 50 HZ 60 HZ Cooling method level** pipe diameter
bar(g) psig m3/min cfm m3/min cfm kw hp   dB(A) L W H kg  
DA-5 7.5  109 0.80  28 0.80  28 5.5 7.5 Belt Driven 75 900 600 860 315 G3/4″
8.5  123 0.78  28 0.78  28 5.5 7.5 Air Cooling 75 900 600 860
DA-7 7.5  109 1.09  39 1.09  39 7.5 10   75 900 600 860 315 G3/4″
8.5  123 1.07  38 1.07  38 7.5 10   75 900 600 860
10.5  152 0.92  32 0.91  32 7.5 10   75 900 600 860
13.0  189 0.73  26 0.72  26 7.5 10   75 900 600 860
DA-11 7.5  109 1.66  59 1.66  59 11 15   75 1230 650 900 324 G3/4″
8.5  123 1.64  58 1.64  58 11 15   75 1230 650 900
10.5  152 1.45  51 1.45  51 11 15   75 1230 650 900
13.0  189 1.13  40 1.12  40 11 15   75 1230 650 900
DA-15 7.5  109 2.54  90 2.53  89 15 20 Direct Driven 75 1465 990 1345 453 G1-1/4″
8.5  123 2.51  88 2.50  88 15 20 Air Cooling 75 1465 990 1345
10.5  152 1.97  70 1.86  66 15 20   75 1465 990 1345
13.0  189 1.91  67 1.83  65 15 20   75 1465 990 1345
DA-18 7.5  109 3.04  107 3.65  129 18.5 25   75 1465 990 1345 453 G1-1/4″
8.5  123 3.03  107 3.63  128 18.5 25   75 1465 990 1345
10.5  152 3.00  106 2.38  84 18.5 25   75 1465 990 1345
13.0  189 1.91  67 2.36  83 18.5 25   75 1465 990 1345
DA-22 7.5  109 3.57  126 3.65  129 22 30   75 1465 990 1345 477 G1-1/4″
8.5  123 3.55  125 3.63  128 22 30   75 1465 990 1345
10.5  152 3.00  106 2.38  84 22 30   75 1465 990 1345
13.0  189 2.97  105 2.36  83 22 30   75 1465 990 1345
DA-30 7.5  109 5.28  187 4.49  159 30 40   85 1600 1250 1550 682 G1-1/2″
8.5  123 5.26  186 4.48  158 30 40   85 1600 1250 1550
10.5  152 5.21  184 4.47  158 30 40   85 1600 1250 1550
13.0  189 3.45  122 3.58  126 30 40   85 1600 1250 1550
DA-37 7.5  109 6.54  231 6.33  224 37 50   85 1600 1250 1550 728 G1-1/2″
8.5  123 6.52  230 6.30  222 37 50   85 1600 1250 1550
10.5  152 5.21  184 4.47  158 37 50   85 1600 1250 1550
13.0  189 5.16  182 4.43  156 37 50   85 1600 1250 1550
DA-45 7.5  109 7.67  271 7.79  275 45 60   85 1600 1250 1550 728 G1-1/2″
8.5  123 7.62  269 7.76  574 45 60   85 1600 1250 1550
10.5  152 6.46  228 6.24  220 45 60   85 1600 1250 1550
13.0  189 6.41  226 4.44  157 45 60   85 1600 1250 1550
DA-55 7.5  109 9.76  345 9.14  323 55 75   85 1876 1326 1700 1310 G2″
8.5  123 9.67  342 9.06  320 55 75   85 1876 1326 1700
10.5  152 7.53  266 7.74  273 55 75   85 1876 1326 1700
13.0  189 7.40  261 6.30  222 55 75   85 1876 1326 1700
DA-75 7.5  109 14.21  502 11.72  414 75 100   85 1876 1326 1700 1325 G2″
8.5  123 12.55  443 11.63  411 75 100   85 1876 1326 1700
10.5  152 9.51  336 11.43  404 75 100   85 1876 1326 1700
13.0  189 9.23  326 8.75  309 75 100   85 1876 1326 1700
DA-90(W) 7.5  109 16.62  587 17.01  601 90 120 Direct Driven 72 2450 1800 1700 2450 DN80
8.5  123 16.37  578 16.82  594 90 120 Air Cooling Or 72 2450 1800 1700
10.5  152 14.21  502 14.87  525 90 120 Water Cooling 72 2450 1800 1700
13.0  189 11.77  416 11.27  398 90 120   72 2450 1800 1700
DA-110(W) 7.5  109 20.13  711 19.10  674 110 150   72 2450 1800 1700 2500 DN80
8.5  123 20.05  708 19.06  673 110 150   72 2450 1800 1700
10.5  152 16.33  576 17.01  601 110 150   72 2450 1800 1700
13.0  189 14.11  498 14.68  518 110 150   72 2450 1800 1700
DA-132(W) 7.5  109 22.85  807 24.37  861 132 175   72 2450 1800 1700 2600 DN80
8.5  123 22.73  802 24.23  856 132 175   72 2450 1800 1700
10.5  152 19.88  702 18.95  669 132 175   72 2450 1800 1700
13.0  189 16.51  583 16.82  594 132 175   72 2450 1800 1700
DA-160(W) 7.5  109 26.92  950 27.90  985 160 215   78 2650 1700 1850 3200 DN80
8.5  123 26.86  949 27.76  980 160 215   78 2650 1700 1850
10.5  152 22.44  792 23.97  846 160 215   78 2650 1700 1850
13.0  189 19.63  693 18.82  664 160 215   78 2650 1700 1850
DA-185(W) 7.5  109 28.89  1571 30.53  1078 185 250   78 2650 1700 1850 3300 DN80
8.5  123 28.84  1018 30.44  1075 185 250   78 2650 1700 1850
10.5  152 25.11  886 27.46  970 185 250   78 2650 1700 1850
13.0  189 22.08  780 23.69  836 185 250   78 2650 1700 1850
DA-200(W) 7.5  109 31.88  1126 30.53  1078 200 270   80 3000 1950 2030 4750 DN100
8.5  123 31.82  1124 30.44  1075 200 270   80 3000 1950 2030
10.5  152 28.48  1006 30.22  1067 200 270   80 3000 1950 2030
13.0  189 25.00  883 27.07  956 200 270   80 3000 1950 2030
DA-220(W) 7.5  109 36.20  1278 37.22  1314 220 300   80 3000 1950 2030 4800 DN100
8.5  123 36.15  1276 37.17  1312 220 300   80 3000 1950 2030
10.5  152 31.71  1120 33.25  1174 220 300   80 3000 1950 2030
13.0  189 28.48  1006 27.07  956 220 300   80 3000 1950 2030
DA-250(W) 7.5  109 43.31  1529 42.87  1514 250 350   80 3000 1950 2030 4850 DN100
8.5  123 43.24  1527 41.30  1458 250 350   80 3000 1950 2030
10.5  152 36.03  1272 37.04  1308 250 350   80 3000 1950 2030
13.0  189 31.55  1114 33.15  1170 250 350   80 3000 1950 2030
DA-280(W) 7.5  109 46.59  1645 47.16  1665 280 375   85 3700 2300 2450 5200 DN125
8.5  123 46.53  1643 45.64  1612 280 375   85 3700 2300 2450
10.5  152 42.95  1516 42.56  1503 280 375   85 3700 2300 2450
13.0  189 35.89  1267 36.95  1305 280 375   85 3700 2300 2450
DA-315(W) 7.5  109 53.16  1877 50.88  1797 315 425   85 3700 2300 2450 6000 DN125
8.5  123 52.63  1858 50.83  1795 315 425   85 3700 2300 2450
10.5  152 43.05  1520 46.27  1634 315 425   85 3700 2300 2450
13.0  189 42.93  1516 40.32  1424 315 425   85 3700 2300 2450
DA-355(W) 7.5  109 63.37  2238 58.12  2052 355 475   85 4500 2500 2450 7000 DN125
8.5  123 63.16  2230 56.54  1997 355 475   85 4500 2500 2450
10.5  152 52.63  1858 51.57  1821 355 475   85 4500 2500 2450
13.0  189 43.79  1546 45.35  1601 355 475   85 4500 2500 2450
DA-400(W) 7.5  109 70.99  2507 61.72  2179 400 550   85 4500 2500 2450 8000 DN125
8.5  123 70.64  2494 59.72  2109 400 550   85 4500 2500 2450
10.5  152 52.63  1858 56.52  1996 400 550   85 4500 2500 2450
13.0  189 46.34  1636 51.35  1813 400 550   85 4500 2500 2450

*) FAD in accordance with ISO 1217 : 2009, Annex C: Absolute intake pressure 1 bar (a), cooling and air intake temperature 20 °C
**) Noise level as per ISO 2151 and the basic standard ISO 9614-2, operation at maximum operating pressure and maximum speed; tolerance: ± 3 dB(A)
***) EEI 1- Energy Effiency Index 1, which refers to enhanced energy saving series
Specifications are subject to change without notice.

DENAIR Factory & Product Lines

DENAIR Exhibition

We carefully selected for you the classic case

Enhanced Energy Saving Air Compressor in Oman

Project Name: Sandblasting in Muscat, Oman.

Product Name: 75KW 100HP Enhanced Energy Saving screw air compressor EEI 1 (Energy Efficiency Index 1) with air dryer, air receiver tank and air filters.

Model No. & Qty: DA-75+ x 1.

Working Time: From June, 2016 till now

Event: In June, 2015, 1 set of CHINAMFG enhanced energy saving air compressor system was installed in Muscat Oman. This is the first project finished by CHINAMFG distributor in Oman. Our partner Mr. Hari shared the photos at working site to us as a good starting. That means more and more CHINAMFG energy saving solutions will contribute to the industries in Oman in the near future. CHINAMFG air compressor factory and air compressor distributor will try the best to provide top quality products, cost effective solution and excellent service for local users in Oman. In order to ensure the most professional service, the distributor plans to send 2 service engineers to CHINAMFG factory in ZheJiang for training and learnin. We will update the news at that time.

FAQ

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

Q2: What the exactly address of your factory? 
A2:No. 366, YangzhuangBang Street, Pingxing Rd., Xindai Town, HangZhou, ZHangZhoug Province, China

Q3: Warranty terms of your air compressor machine? 
A3: Two years warranty for the machine and technical support according to your needs.

Q4: Will you provide some spare parts of the air compressor? 
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.

Lubrication Style: Lubricated
Cooling System: Air Cooling
Power Source: AC Power
Customization:
Available

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

air compressor

What Is the Role of Air Dryers in Oil-Free Air Compressor Systems?

Air dryers play a crucial role in oil-free air compressor systems by removing moisture from the compressed air, ensuring dry and moisture-free output. Here’s a detailed explanation of the role of air dryers in oil-free air compressor systems:

1. Moisture Removal:

One of the primary functions of air dryers in oil-free air compressor systems is to remove moisture from the compressed air. During the compression process, atmospheric air is compressed, leading to an increase in temperature. As the compressed air cools down, the water vapor present in the air can condense, resulting in the formation of liquid water. Moisture in the compressed air can cause a range of issues, including corrosion, damage to pneumatic equipment, reduced efficiency in downstream processes, and contamination of products or processes. Air dryers effectively remove this moisture, ensuring that the compressed air remains dry and free from water vapor.

2. Condensation Prevention:

Air dryers also help prevent condensation from occurring within the compressed air system. By removing moisture from the compressed air, air dryers minimize the chances of condensation forming in the compressed air lines, storage tanks, and downstream equipment. Condensation can lead to the accumulation of water, which can cause blockages, corrosion, and other operational issues. Air dryers help maintain the integrity and reliability of the compressed air system by preventing condensation-related problems.

3. Protection of Equipment:

Moisture in the compressed air can be detrimental to pneumatic equipment and tools. Air dryers help protect this equipment by ensuring that the air supplied is dry and free from moisture. Dry air prevents corrosion of internal components, extends the lifespan of pneumatic tools, and helps maintain their optimal performance. By removing moisture, air dryers contribute to the overall reliability and efficiency of the oil-free air compressor system.

4. Purification of Compressed Air:

Air dryers also aid in the purification of compressed air by removing impurities and contaminants, including water vapor, oil droplets, and solid particles. While the primary purpose of air dryers is to remove moisture, they often incorporate additional filtration stages, such as coalescing filters or desiccant beds, to capture and remove other impurities. These filtration stages work in conjunction with the drying process to deliver clean, dry, and purified compressed air that meets the required air quality standards.

5. Optimal Performance:

Properly dried and moisture-free compressed air ensures optimal performance in various applications. In industries such as food and beverage, pharmaceuticals, electronics manufacturing, and painting, where air quality is critical, the use of air dryers is essential to meet specific air purity requirements. Dry compressed air enhances the efficiency and reliability of pneumatic systems, reducing the risk of malfunctions, downtime, and product contamination.

It’s important to note that different types of air dryers are available for oil-free air compressor systems, including refrigerated dryers, desiccant dryers, and membrane dryers. Each type has its own operating principles and suitability for different applications. The selection of the appropriate air dryer depends on factors such as the required level of dryness, the volume of compressed air, operating conditions, and specific industry requirements.

By incorporating air dryers into oil-free air compressor systems, operators can achieve and maintain dry, moisture-free compressed air, ensuring the reliability, efficiency, and integrity of downstream processes and equipment.

air compressor

Can Oil-Free Air Compressors Be Used in Cold Climates?

Yes, oil-free air compressors can be used in cold climates. Here’s a detailed explanation of the considerations and adaptations that may be necessary when using oil-free compressors in cold weather:

1. Cold-Start Capability:

Oil-free compressors should be designed and equipped with features that enable them to start and operate reliably in cold temperatures. This includes components such as low-temperature lubricants, preheating systems, and specialized insulation to prevent freezing or damage to critical parts.

2. Compressed Air Drying:

In cold climates, the moisture content in the compressed air can condense and freeze, leading to operational issues and potential damage to the compressed air system. It is crucial to incorporate proper compressed air drying equipment, such as refrigerated dryers or desiccant dryers, to remove moisture from the compressed air and prevent freezing within the system. This ensures the production of dry and reliable compressed air even in cold weather conditions.

3. Freeze Protection:

Special attention should be given to protecting the compressor and associated components from freezing. This may involve insulation, heat tracing, or the use of frost protection heaters in critical areas susceptible to freezing, such as air intakes, valves, filters, and condensate drains. Adequate insulation can help maintain optimal operating temperatures and prevent freezing-related issues.

4. Cold Weather Lubricants:

In extremely cold climates, it is essential to use specific lubricants that are designed to perform effectively at low temperatures. These lubricants should have low pour points and be capable of providing sufficient lubrication and protection to the compressor’s moving parts even in cold environments. Using the appropriate lubricants ensures reliable operation and prevents damage to the compressor during cold starts and operation.

5. Preventive Maintenance:

Regular preventive maintenance is crucial when using oil-free compressors in cold climates. It is essential to follow the manufacturer’s recommendations for maintenance tasks such as filter replacements, lubricant changes (if applicable), and inspection of critical components. Cold weather conditions can exacerbate wear and tear on equipment, so proper maintenance helps identify and address potential issues before they lead to operational problems.

6. Monitoring and Control:

Implementing advanced monitoring and control systems can provide real-time information about the compressor’s performance in cold climates. Monitoring parameters such as temperature, pressure, and system efficiency can help identify any deviations or potential issues caused by low temperatures. Additionally, control systems can optimize compressor operation and adjust parameters to ensure efficient performance in cold weather conditions.

It’s important to consult the manufacturer’s specifications and guidelines for the specific oil-free compressor model being used, as they may provide additional recommendations or requirements for operating the compressor in cold climates. Adhering to these guidelines and implementing appropriate adaptations will help ensure the reliable and efficient performance of oil-free air compressors in cold weather environments.

air compressor

What Is an Oil-Free Air Compressor?

An oil-free air compressor, also known as an oilless air compressor, is a type of air compressor that operates without the use of lubricating oil in the compression chamber. Unlike traditional air compressors that rely on oil for lubrication and sealing, oil-free compressors employ alternative methods to achieve compression and deliver clean, oil-free compressed air. Here’s a detailed explanation of how oil-free air compressors work and their key characteristics:

Working Principle:

Oil-free air compressors utilize various techniques to compress air without the need for oil. The most common methods include:

  • Dry Compression: In this method, the compression chamber doesn’t have any oil present. Special materials, coatings, and surface treatments are used to reduce friction and wear between the moving parts, allowing for efficient compression without oil lubrication.
  • Water or Air Cooling: Oil-free compressors often employ advanced cooling mechanisms, such as water or air cooling, to dissipate the heat generated during compression. This helps to maintain the operating temperature within acceptable limits and ensures the longevity of the compressor.
  • Piston Rings and Seals: Instead of relying on oil for lubrication and sealing, oil-free compressors use specialized piston rings, seals, or other forms of dry frictionless technology. These components provide the necessary sealing and reduce internal friction, allowing for efficient compression without the need for oil.

Characteristics of Oil-Free Air Compressors:

1. Clean and Oil-Free Air: The primary advantage of oil-free air compressors is that they deliver air that is free from oil contamination. This makes them suitable for applications where oil contamination can be detrimental, such as in the medical, pharmaceutical, food and beverage, electronics, and automotive industries.

2. Low Maintenance: Oil-free compressors typically require less maintenance compared to oil-lubricated compressors. Since there is no oil to change or monitor, maintenance tasks related to oil filtration, oil changes, and oil disposal are eliminated. This can result in cost savings and reduced downtime.

3. Compact and Lightweight: Oil-free compressors are often designed to be compact and lightweight, making them portable and easy to transport. This makes them suitable for applications where mobility is required, such as construction sites, workshops, and on-site maintenance tasks.

4. No Oil Contamination Risk: With oil-free compressors, there is no risk of oil contaminating the compressed air system. This eliminates the need for additional filtration or separation equipment to remove oil from the compressed air, simplifying the overall system design.

5. Lower Initial Cost: In general, oil-free compressors tend to have a lower initial cost compared to oil-lubricated compressors. This can be advantageous for applications with budget constraints or when the specific requirements of the application align with the capabilities of oil-free compressors.

It’s important to note that oil-free air compressors may have certain limitations compared to oil-lubricated compressors. They may have lower maximum operating pressures and higher operating temperatures. Additionally, the absence of oil lubrication may result in slightly reduced efficiency and increased wear on certain components over time.

By understanding the working principle and characteristics of oil-free air compressors, users can determine whether this type of compressor is suitable for their specific application and requirements.

China Professional Oil Free Stationary 40% Energy Saving AC Electrical Rotary Screw Air Compressor   best air compressorChina Professional Oil Free Stationary 40% Energy Saving AC Electrical Rotary Screw Air Compressor   best air compressor
editor by CX 2023-12-04

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