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China best 750 Cfm VSD Screw Air Compressor 250 to 350 CHINAMFG with Hot selling

Product Description

Variable Speed Drive Screw Air Compressor Advantages:

CHINAMFG VSD  (Variable Speed Drive) rotary screw air compressors  are suitable for customers who need different amount of air supply and extremely accurate pressure. It can facilitate customers to optimize production process and improve productivity.
 
The principle of VSD is to adjust the motor rotation speed automatically according to the actual  air demand. The reduced system pressure decreases the total energy consumption of the whole system, which can reduce energy costs by 35% or more.
 
The VSD air compressor  reduces the energy consumption through the following points:

1. Removing the low efficiency transformation process from the full loading to unloading
2. Avoiding the power during the unloading process
3. Keeping the pipeline pressure drop under 0.1bar
4. Reducing the average working pressure
5. Lowering the system pressure to reduce the system leakage
6. The soft starting method increases the current balance and avoids the current surge
7. A flexible choice from 4 to 13bar which reduces the power consumption most.

Technical Parameters Of High Quality Variable Frequency Screw Air Compressor:
 

Model Maximum
 working pressure
Capacity
 FAD
Installed 
motor power
Driving
 Mode&
Cooling 
Method
Dimensions
(mm)
Weight
(kg)
Noise
 level
[dB(A)]
Air outlet
 pipe
diameter
bar(e) psig m3/min cfm kW hp L W H
DVA-18G 7.5 109 1.46-2.91 51.6-102.8 18.5 25 Belt 
Direct
/Direct 
Driven
Air
 Cooling
1000 900 1150 500 65±2 G1″
8.5 123 1.45-2.89 51.2-102 18.5 25 1000 900 1150 500 65±2 G1″
10.5 152 1.44-2.87 50.8-101.3 18.5 25 1000 900 1150 500 65±2 G1″
13 189 1.08-2.16 38.1-76.3 18.5 25 1000 900 1150 500 65±2 G1″
DVA-22G 7.5 109 1.89-3.78 66.7-133.5 22 30 1050 1200 1300 550 65±2 G1 1/4″
8.5 123 1.87-3.73 66-131.7 22 30 1050 1200 1300 550 65±2 G1 1/4″
10.5 152 1.55-3.09 54.7-109.1 22 30 1050 1200 1300 550 65±2 G1 1/4″
13 189 1.38-2.76 48.7-97.5 22 30 1050 1200 1300 550 65±2 G1 1/4″
DVA-30G 7.5 109 2.3-4.59 81.2-162.1 30 40 1050 1200 1300 600 65±2 G1 1/4″
8.5 123 2.25-4.5 79.4-158.9 30 40 1050 1200 1300 600 65±2 G1 1/4″
10.5 152 2.16-4.32 76.3-152.5 30 40 1050 1200 1300 600 65±2 G1 1/4″
13 189 1.89-3.78 66.7-133.5 30 40 1050 1200 1300 600 65±2 G1 1/4″
DVA-37G 7.5 109 3.56-7.11 125.7-251.1 37 50 1050 1200 1300 650 65±2 G1 1/4″
8.5 123 3.35-6.7 118.3-236.6 37 50 1050 1200 1300 650 65±2 G1 1/4″
10.5 152 2.76-5.51 97.5-194.6 37 50 1050 1200 1300 650 65±2 G1 1/4″
13 189 2.22-4.43 78.4-156.4 37 50 1050 1200 1300 650 65±2 G1 1/4″
DVA-45G 7.5 109 4-7.99 141.2-282.1 45 60 1200 1350 1500 800 68±3 G1 1/2″
8.5 123 3.99-7.97 140.9-281.4 45 60 1200 1350 1500 800 68±3 G1 1/2″
10.5 152 3.97-7.93 140.2-280 45 60 1200 1350 1500 800 68±3 G1 1/2″
13 189 2.76-5.51 97.5-194.6 45 60 1200 1350 1500 800 68±3 G1 1/2″
DVA-55G 7.5 109 5.13-10.26 181.1-362.3 55 75 1200 1350 1500 850 68±3 G1 1/2″
8.5 123 5.08-10.15 179.4-358.4 55 75 1200 1350 1500 850 68±3 G1 1/2″
10.5 152 4.54-9.07 160.3-320.3 55 75 1200 1350 1500 850 68±3 G1 1/2″
13 189 3.78-7.56 133.5-266.9 55 75 1200 1350 1500 850 68±3 G1 1/2″
DVA-75G 7.5 109 7.68-15.36 271.2-542.4 75 100 1500 1450 1600 1000 72±3 G2″
8.5 123 7.65-15.29 270.1-539.9 75 100 1500 1450 1600 1000 72±3 G2″
10.5 152 6-11.99 211.9-423.4 75 100 1500 1450 1600 1000 72±3 G2″
13 189 5.81-11.62 205.2-410.3 75 100 1500 1450 1600 1000 72±3 G2″
DVA-90 7.5 109 7.68-15.36 271.2-542.4 90 120 Direct 
Driven 
Air 
Cooling 
2150 1300 1550 1900 72±3 DN50
8.5 123 7.65-15.29 270.1-539.9 90 120 2150 1300 1550 1900 72±3 DN50
10.5 152 7.02-14.04 247.9-495.8 90 120 2150 1300 1550 1900 72±3 DN50
13 189 5.83-11.66 205.9-411.7 90 120 2150 1300 1550 1900 72±3 DN50
DVA-110 7.5 109 10.35-20.69 365.5-730.6 110 150 2450 1600 1700 2500 75±3 DN80
8.5 123 10.3-20.6 363.7-727.4 110 150 2450 1600 1700 2500 75±3 DN80
10.5 152 8.26-16.52 291.7-583.3 110 150 2450 1600 1700 2500 75±3 DN80
13 189 7.02-14.04 247.9-495.8 110 150 2450 1600 1700 2500 75±3 DN80
DVA-132 7.5 109 12.42-24.84 438.6-877.1 132 175 2450 1600 1700 2700 75±3 DN80
8.5 123 12.37-24.74 436.8-873.6 132 175 2450 1600 1700 2700 75±3 DN80
10.5 152 10.21-20.41 360.5-720.7 132 175 2450 1600 1700 2700 75±3 DN80
13 189 7.56-15.12 266.9-533.9 132 175 2450 1600 1700 2700 75±3 DN80
DVA-160 7.5 109 14.33-28.66 506-1012 160 215 2650 1600 1800 3600 78±3 DN80
8.5 123 14.27-28.53 503.9-1007.4 160 215 2650 1600 1800 3600 78±3 DN80
10.5 152 12.26-24.53 432.9-866.2 160 215 2650 1600 1800 3600 78±3 DN80
13 189 10.15-20.3 358.4-716.8 160 215 2650 1600 1800 3600 78±3 DN80
DVA-185 
DVA185W
7.5 109 15.72-31.44 555.1-1110.1 185 250 Direct 
Driven 
Air 
Cooling 
or 
Water 
Cooling
2800 1500 1800 3700 78±3 DN80
8.5 123 15.63-31.27 551.9-1104.1 185 250 2800 1500 1800 3700 78±3 DN80
10.5 152 14.11-28.22 498.2-996.4 185 250 2800 1500 1800 3700 78±3 DN80
13 189 12.06-24.13 425.8-852 185 250 2800 1500 1800 3700 78±3 DN80
DVA-200
 DVA-200W
7.5 109 17.8-35.6 628.5-1257 200 270 2800 1950 2000 3850 82±3 DN100
8.5 123 17.71-35.42 625.3-1250.7 200 270 2800 1950 2000 3850 82±3 DN100
10.5 152 15.53-31.05 548.4-1096.4 200 270 2800 1950 2000 3850 82±3 DN100
13 189 12.06-24.13 425.8-852 200 270 2800 1950 2000 3850 82±3 DN100
DVA-220
 DVA-220W
7.5 109 19.12-38.23 675.1-1349.9 220 300 2800 1950 2000 4450 82±3 DN100
8.5 123 19.06-38.12 673-1346 220 300 2800 1950 2000 4450 82±3 DN100
10.5 152 15.5-31 547.3-1094.6 220 300 2800 1950 2000 4450 82±3 DN100
13 189 13.87-27.75 489.7-979.9 220 300 2800 1950 2000 4450 82±3 DN100
DVA-250
 DVA-250W
7.5 109 23.52-47.04 830.5-1661 250 350 2800 1950 2000 5150 82±3 DN100
8.5 123 23.49-46.98 829.4-1658.9 250 350 2800 1950 2000 5150 82±3 DN100
10.5 152 19.01-38.03 671.2-1342.8 250 350 2800 1950 2000 5150 82±3 DN100
13 189 17.55-35.1 619.7-1239.4 250 350 2800 1950 2000 5150 82±3 DN100

DENAIR Certifications:

DENAIR Factory:

ZheJiang Denair(group)CO,.Ltd. is a Sino-German joint venture enterprise group integrating R&D,manufacturing and marketing.The company brought in advanced compressor R&D and manufacturing and marketing.The company brought in advanced compressor R&D and manufacturing technology of Germany CHINAMFG Group to make product development and large-scale production,including piston air compressors,double screw air compressors,Portable Air compressor,High and Medium Pressure Air Compressors, oil free air compressor and compressed air treatment equipment.

DENAIR Exhibitions:

DENAIR Global Customers:

 

DENAIR Variable Frequency Air Compressor Packaging: 

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 machine? 
A3:  Two years 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

Lubrication Style: Lubricated
Cooling System: Air Cooling
Cylinder Position: Vertical
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 are the energy-saving technologies available for air compressors?

There are several energy-saving technologies available for air compressors that help improve their efficiency and reduce energy consumption. These technologies aim to optimize the operation of air compressors and minimize energy losses. Here are some common energy-saving technologies used:

1. Variable Speed Drive (VSD) Compressors:

VSD compressors are designed to adjust the motor speed according to the compressed air demand. By varying the motor speed, these compressors can match the output to the actual air requirement, resulting in energy savings. VSD compressors are particularly effective in applications with varying air demands, as they can operate at lower speeds during periods of lower demand, reducing energy consumption.

2. Energy-Efficient Motors:

The use of energy-efficient motors in air compressors can contribute to energy savings. High-efficiency motors, such as those with premium efficiency ratings, are designed to minimize energy losses and operate more efficiently than standard motors. By using energy-efficient motors, air compressors can reduce energy consumption and achieve higher overall system efficiency.

3. Heat Recovery Systems:

Air compressors generate a significant amount of heat during operation. Heat recovery systems capture and utilize this wasted heat for other purposes, such as space heating, water heating, or preheating process air or water. By recovering and utilizing the heat, air compressors can provide additional energy savings and improve overall system efficiency.

4. Air Receiver Tanks:

Air receiver tanks are used to store compressed air and provide a buffer during periods of fluctuating demand. By using appropriately sized air receiver tanks, the compressed air system can operate more efficiently. The tanks help reduce the number of starts and stops of the air compressor, allowing it to run at full load for longer periods, which is more energy-efficient than frequent cycling.

5. System Control and Automation:

Implementing advanced control and automation systems can optimize the operation of air compressors. These systems monitor and adjust the compressed air system based on demand, ensuring that only the required amount of air is produced. By maintaining optimal system pressure, minimizing leaks, and reducing unnecessary air production, control and automation systems help achieve energy savings.

6. Leak Detection and Repair:

Air leaks in compressed air systems can lead to significant energy losses. Regular leak detection and repair programs help identify and fix air leaks promptly. By minimizing air leakage, the demand on the air compressor is reduced, resulting in energy savings. Utilizing ultrasonic leak detection devices can help locate and repair leaks more efficiently.

7. System Optimization and Maintenance:

Proper system optimization and routine maintenance are essential for energy savings in air compressors. This includes regular cleaning and replacement of air filters, optimizing air pressure settings, ensuring proper lubrication, and conducting preventive maintenance to keep the system running at peak efficiency.

By implementing these energy-saving technologies and practices, air compressor systems can achieve significant energy efficiency improvements, reduce operational costs, and minimize environmental impact.

air compressor

Can air compressors be integrated into automated systems?

Yes, air compressors can be integrated into automated systems, providing a reliable and versatile source of compressed air for various applications. Here’s a detailed explanation of how air compressors can be integrated into automated systems:

Pneumatic Automation:

Air compressors are commonly used in pneumatic automation systems, where compressed air is utilized to power and control automated machinery and equipment. Pneumatic systems rely on the controlled release of compressed air to generate linear or rotational motion, actuating valves, cylinders, and other pneumatic components. By integrating an air compressor into the system, a continuous supply of compressed air is available to power the automation process.

Control and Regulation:

In automated systems, air compressors are often connected to a control and regulation system to manage the compressed air supply. This system includes components such as pressure regulators, valves, and sensors to monitor and adjust the air pressure, flow, and distribution. The control system ensures that the air compressor operates within the desired parameters and provides the appropriate amount of compressed air to different parts of the automated system as needed.

Sequential Operations:

Integration of air compressors into automated systems enables sequential operations to be carried out efficiently. Compressed air can be used to control the timing and sequencing of different pneumatic components, ensuring that the automated system performs tasks in the desired order and with precise timing. This is particularly useful in manufacturing and assembly processes where precise coordination of pneumatic actuators is required.

Energy Efficiency:

Air compressors can contribute to energy-efficient automation systems. By incorporating energy-saving features such as Variable Speed Drive (VSD) technology, air compressors can adjust their power output according to the demand, reducing energy consumption during periods of low activity. Additionally, efficient control and regulation systems help optimize the use of compressed air, minimizing waste and improving overall energy efficiency.

Monitoring and Diagnostics:

Integration of air compressors into automated systems often includes monitoring and diagnostic capabilities. Sensors and monitoring devices can be installed to collect data on parameters such as air pressure, temperature, and system performance. This information can be used for real-time monitoring, preventive maintenance, and troubleshooting, ensuring the reliable operation of the automated system.

When integrating air compressors into automated systems, it is crucial to consider factors such as the specific requirements of the automation process, the desired air pressure and volume, and the compatibility of the compressor with the control and regulation system. Consulting with experts in automation and compressed air systems can help in designing an efficient and reliable integration.

In summary, air compressors can be seamlessly integrated into automated systems, providing the necessary compressed air to power and control pneumatic components, enabling sequential operations, and contributing to energy-efficient automation processes.

air compressor

What is the purpose of an air compressor?

An air compressor serves the purpose of converting power, typically from an electric motor or an engine, into potential energy stored in compressed air. It achieves this by compressing and pressurizing air, which can then be used for various applications. Here’s a detailed explanation of the purpose of an air compressor:

1. Powering Pneumatic Tools: One of the primary uses of an air compressor is to power pneumatic tools. Compressed air can be used to operate a wide range of tools, such as impact wrenches, nail guns, paint sprayers, sanders, and drills. The compressed air provides the necessary force and energy to drive these tools, making them efficient and versatile.

2. Supplying Clean and Dry Air: Air compressors are often used to supply clean and dry compressed air for various industrial processes. Many manufacturing and production operations require a reliable source of compressed air that is free from moisture, oil, and other contaminants. Air compressors equipped with appropriate filters and dryers can deliver high-quality compressed air for applications such as instrumentation, control systems, and pneumatic machinery.

3. Inflating Tires and Sports Equipment: Air compressors are commonly used for inflating tires, whether it’s for vehicles, bicycles, or sports equipment. They provide a convenient and efficient method for quickly filling tires with the required pressure. Air compressors are also used for inflating sports balls, inflatable toys, and other similar items.

4. Operating HVAC Systems: Air compressors play a crucial role in the operation of heating, ventilation, and air conditioning (HVAC) systems. They provide compressed air for controlling and actuating dampers, valves, and actuators in HVAC systems, enabling precise regulation of air flow and temperature.

5. Assisting in Industrial Processes: Compressed air is utilized in various industrial processes. It can be used for air blow-off applications, cleaning and drying parts, powering air-operated machinery, and controlling pneumatic systems. Air compressors provide a reliable and efficient source of compressed air that can be tailored to meet the specific requirements of different industrial applications.

6. Supporting Scuba Diving and Breathing Systems: In scuba diving and other breathing systems, air compressors are responsible for filling diving tanks and supplying breathable air to divers. These compressors are designed to meet strict safety standards and deliver compressed air that is free from contaminants.

Overall, the purpose of an air compressor is to provide a versatile source of compressed air for powering tools, supplying clean air for various applications, inflating tires and sports equipment, supporting industrial processes, and facilitating breathing systems in specific contexts.

China best 750 Cfm VSD Screw Air Compressor 250 to 350 CHINAMFG   with Hot sellingChina best 750 Cfm VSD Screw Air Compressor 250 to 350 CHINAMFG   with Hot selling
editor by CX 2024-01-10