Product Description
55kW 75HP Motor IP54/IP55 Electric Air Compressor 7-13bar PM VSD Screw Air Compressor
Model: DM-75A
Free air delivery:10.1m3/min, 9.5m3/min, 8.3m3/min,7.8m3/min,
Working pressure:7bar, 8bar, 10bar, 13 bar
Screw air end rotor lobe: 5:6
Brand of screw air end: Hanbell ZheJiang
Brand of inverter: Inovance
Control: Micro PLC controller
Driven: direct
Cooling: by oil
Electric motor: 75hp 55KW, Permanent Magnet IP65 Motor, 380V/50hz/3ph or customized
Discharge temperature: less than ambient +8 ºC
Noise: less than 72 dB(A)
Air outlet size: G2″
Dimension:1600*1060*1470mm
Weight: 950kg
DM Series Permanent Magnet Variable Frequency Screw Compressor
Permanent magnet Direct Screw Air End
It is a unique new design, which combines the permanent magnet motor and the speed control frequency converter. It couples with the high quality air end, which shows the advanced CHINAMFG technology.
It can provide the unique energy-saving effect and super reliability. There is no motor bearing. The screwing compressor is driven by the permanent magnet motor. There is no consider about the attrition of the gear,pulley,belt, coupling,shaft seal and the moving parts, which leads to the leak or change parts. Meanwhile, it not need to consider the calibritionfor the gear coaxial seal. The high-effect converter technique will reduce the operating costs prodigiously, which can provide you a real excellent technology.
Features Of Permanent Magnet Variable Frequency Air Compressor
Ultra-low temperature rise design, the compressor allows long-term stable operation at ultra-low frequencies; closed-loop vector control system, faster control and more precise speed regulation; the compressor unit can still maintain efficient operation when the frequency is reduced by more than 50%; the pressure is stable, and the pressure is accurately controlled The fluctuation is within 0.01Mpa.
The figure shows the comparison of several starting methods. It can be seen that the inverter starts slowly and starts more smoothly, completely avoiding the current peak.
Under the set variable frequency pressure, the unit will automatically adjust to keep the output pressure within ±0.1bar, reducing unnecessary waste (for every pressure increase by 1 bar, power consumption increases by 7%)
Why choose permanent magnet variable frequency screw air compressor?
Our permanent magnet frequency screw air comrpessor parmaters:
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Model |
DM-10A |
DM-20A |
DM-30A |
DM-40A |
DM-50A |
DM-60A |
DM-75A |
DM-100A | DM-125A | DM -150A |
DM -175A |
DM-220A | DM-250A |
|
capacity |
1~ 1.3 |
1.7 ~4.15 |
2.8 |
5.2 ~5.7 |
4.9 ~6.9 |
5.9 ~8.1 |
7.8 ~10.3 |
9.5 ~13 |
12.5 ~16.7 |
15.5 ~20.8 |
17 ~24.1 |
20 ~28.8 |
25.8 ~33.2 |
|
Working pressure(bar) |
7~13 |
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Cooling method |
air or water cooling | ||||||||||||
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Discharge temperature |
Environment temp +10 °C<40°C |
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Lubricate |
4 | 9 | 18 | 30 | 30 | 50 | 50 | 65 | 65 | 72 | 72 | 112 | 112 |
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Noise(db) |
63 | 65 | 68 | 68 | 69 | 70 | 70 | 72 | 72 | 72 | 72 | 72 | 72 |
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Driven mode |
Permanent magnet synchronization | ||||||||||||
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Electricity |
220V/380V/415V/3PH/50HZ/60HZ | ||||||||||||
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Power(kW) |
7.5 | 15 | 22 | 30 | 37 | 45 | 55 | 75 | 90 | 110 | 132 | 160 | 185 |
|
Dimensions (H-W-D) |
895 590 970 |
1062 690 1000 |
1330 830 1265 |
1330 830 1265 |
1500 940 1415 |
1500 940 1415 |
1600 1060 1470 |
2000 1120 1590 |
2000 1120 1590 |
2400 1630 1980 |
2400 1630 1980 |
2800 1828 2150 |
2800 1828 2150 |
|
Weight(kg) |
190 | 236 | 410 | 520 | 655 | 730 | 950 | 1070 | 1221 | 1950 | 2150 | 3620 | 3920 |
|
Staring mode |
Frequency conversion start | ||||||||||||
Notes:
1.A represents air-cooling type;
2.Working Environment temperature: 2ºC~45ºC;
3.Startup Mode: frenquency start
4.Work Power: 380V / 50HZ/3P 4 wire type.
5.F.A.D volume flow test is according to ASMC PTC9 or ISO1217 standard (GB/T3853)
Screw Air Compressor Features:
1.Touch screen display controller.
2.Remote control function.
3.Automatically restart after short power off.
4.All parameters of air compressor can be checked from screen disply of the controller.
5.High temperature alarm, voltage alarm, filters overtime alarm functions.
Welcome to visit our factory, we would like to have honest and warm cooperation with your company!
Project case
About us
Dehaha Compressor was founded in 1996 with over 150 skilled employees and more than 25 R&D engineers’ teams.We focus on the research & develop, manufacture and energy-saving solutions of screw air compressor to create value for customers and society.
Dehaha opened to the world since 2015, and now we have a foreign trade department with more than dozens people, serving customers around the world 24 hours. We have sales representatives who can speak English, Spanish, Portuguese, French,and Russian which makes it easier for our clients from all over the world to interact and negotiate with us.now our valued customers are over 130 countries. Germany Standard and 13 years exporting experience help us won more than 50 loyal overseas agents.
Dehaha continuously innovates product development and management to meet customers’ demand. The powerful enterprise culture and continuous innovation make CHINAMFG improved rapidly to reach the business principle “Energy Saving First, Mutual Value Shared”. The production line of CHINAMFG is consist of screw air compressor from 5.5KW to 550KW, oil free air compressor, portable air compressor, permanent magnet variable frequency air compressor, high pressure air compressor and compressed air purification equipment, etc.
Dehaha mission is to be a world-renowned high-end brand, with sustainable development, constantly improving its own value and sharing it with our customers and staff. Committed to offer our customers a silent and energy-saving manufactured products.
Exhibition
Why choose us
Packaging & Shipping
FAQ
Q1. Are you trading company or manufacture ?
A: We are professional manufacture of screw air compressor of HangZhou(Close to ZheJiang ), China, more than 24 years.
Q2. How long is the delivery time ?
A: For standard voltage ,15 working days. Non-standard ,please contact our sales.
Q3. What’s payment term ?
A: T/T, L/C, D/P, Western Union, Paypal, Credit Card, and etc. Also we could accept USD, RMB, Euro and other currency.
Q4. How about your after-sales service ?
A: 1.Provide customers with installation and commissioning online instructions.
2. Well-trained engineers available to overseas service.
3.CHINAMFG agents and after service avaiable.arrange our engineers to help you training and installation.
Q5. How about your warranty?
A: One year for the whole machine and 2 years for screw air end, except consumable spare parts.
Q6. Do you have any certificate ?
A: Yes, per different customer’s market need ,we can offer CE ,ISO etc certificate.
Q7. What about the maintenance ?
A: First maintenance need to be done after 500Hours, and then every 2000-3000 hours to do the normal maintenance, and consider the actual environment.
Q8. How do you control quality ?
A: 1.The raw materials are strictly inspected
2. Some key parts are imported from overseas
3.Each compressor must pass at least 5 hours of continuous testing before leaving the factory.
Q9. Do you offer OEM service ?
A: Yes.Both OEM & ODM service can be accepted.
Q10.How long could your air compressor be used?
A: Generally, more than 10 years.
| After-sales Service: | Online Support |
|---|---|
| Warranty: | 24months |
| Lubrication Style: | Lubricated |
| Customization: |
Available
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Shipping Cost:
Estimated freight per unit. |
about shipping cost and estimated delivery time. |
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| Payment Method: |
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Initial Payment Full Payment |
| Currency: | US$ |
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| Return&refunds: | You can apply for a refund up to 30 days after receipt of the products. |
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Can air compressors be used for gas compression and storage?
Yes, air compressors can be used for gas compression and storage. While air compressors are commonly used to compress and store air, they can also be utilized for compressing and storing other gases, depending on the specific application requirements. Here’s how air compressors can be used for gas compression and storage:
Gas Compression:
Air compressors can compress various gases by utilizing the same principles applied to compressing air. The compressor takes in the gas at a certain pressure, and through the compression process, it increases the pressure and reduces the volume of the gas. This compressed gas can then be used for different purposes, such as in industrial processes, gas pipelines, or storage systems.
Gas Storage:
Air compressors can also be used for gas storage by compressing the gas into storage vessels or tanks. The compressed gas is stored at high pressure within these vessels until it is needed for use. Gas storage is commonly employed in industries where a continuous and reliable supply of gas is required, such as in natural gas storage facilities or for storing compressed natural gas (CNG) used as a fuel for vehicles.
Gas Types:
While air compressors are primarily designed for compressing air, they can be adapted to handle various gases, including but not limited to:
- Nitrogen
- Oxygen
- Hydrogen
- Carbon dioxide
- Natural gas
- Refrigerant gases
It’s important to note that when using air compressors for gas compression and storage, certain considerations must be taken into account. These include compatibility of the compressor materials with the specific gas being compressed, ensuring proper sealing to prevent gas leaks, and adhering to safety regulations and guidelines for handling and storing compressed gases.
By leveraging the capabilities of air compressors, it is possible to compress and store gases efficiently, providing a reliable supply for various industrial, commercial, and residential applications.
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How are air compressors used in refrigeration and HVAC systems?
Air compressors play a vital role in refrigeration and HVAC (Heating, Ventilation, and Air Conditioning) systems, providing the necessary compression of refrigerant gases and facilitating the heat transfer process. Here are the key ways in which air compressors are used in refrigeration and HVAC systems:
1. Refrigerant Compression:
In refrigeration systems, air compressors are used to compress the refrigerant gas, raising its pressure and temperature. This compressed gas then moves through the system, where it undergoes phase changes and heat exchange to enable cooling or heating. The compressor is the heart of the refrigeration cycle, as it pressurizes and circulates the refrigerant.
2. Refrigeration Cycle:
The compression of refrigerant gas by the air compressor is an essential step in the refrigeration cycle. After compression, the high-pressure, high-temperature gas flows to the condenser, where it releases heat and condenses into a liquid. The liquid refrigerant then passes through an expansion valve or device, which reduces its pressure and temperature. This low-pressure, low-temperature refrigerant then enters the evaporator, absorbing heat from the surrounding environment and evaporating back into a gas. The cycle continues as the gas returns to the compressor for re-compression.
3. HVAC Cooling and Heating:
In HVAC systems, air compressors are used to facilitate cooling and heating processes. The compressor compresses the refrigerant gas, which allows it to absorb heat from the indoor environment in the cooling mode. The compressed gas releases heat in the outdoor condenser unit and then circulates back to the compressor to repeat the cycle. In the heating mode, the compressor reverses the refrigeration cycle, absorbing heat from the outdoor air or ground source and transferring it indoors.
4. Air Conditioning:
Air compressors are an integral part of air conditioning systems, which are a subset of HVAC systems. Compressed refrigerant gases are used to cool and dehumidify the air in residential, commercial, and industrial buildings. The compressor pressurizes the refrigerant, initiating the cooling cycle that removes heat from the indoor air and releases it outside.
5. Compressor Types:
Refrigeration and HVAC systems utilize different types of air compressors. Reciprocating compressors, rotary screw compressors, and scroll compressors are commonly used in these applications. The selection of the compressor type depends on factors such as system size, capacity requirements, efficiency, and application-specific considerations.
6. Energy Efficiency:
Efficient operation of air compressors is crucial for refrigeration and HVAC systems. Energy-efficient compressors help minimize power consumption and reduce operating costs. Additionally, proper compressor sizing and system design contribute to the overall energy efficiency of refrigeration and HVAC systems.
By effectively compressing refrigerant gases and facilitating the heat transfer process, air compressors enable the cooling and heating functions in refrigeration and HVAC systems, ensuring comfortable indoor environments and efficient temperature control.
What is the impact of tank size on air compressor performance?
The tank size of an air compressor plays a significant role in its performance and functionality. Here are the key impacts of tank size:
1. Air Storage Capacity: The primary function of the air compressor tank is to store compressed air. A larger tank size allows for greater air storage capacity. This means the compressor can build up a reserve of compressed air, which can be useful for applications that require intermittent or fluctuating air demand. Having a larger tank ensures a steady supply of compressed air during peak usage periods.
2. Run Time: The tank size affects the run time of the air compressor. A larger tank can provide longer continuous operation before the compressor motor needs to restart. This is because the compressed air in the tank can be used to meet the demand without the need for the compressor to run continuously. It reduces the frequency of motor cycling, which can improve energy efficiency and prolong the motor’s lifespan.
3. Pressure Stability: A larger tank helps maintain stable pressure during usage. When the compressor is running, it fills the tank until it reaches a specified pressure level, known as the cut-out pressure. As the air is consumed from the tank, the pressure drops to a certain level, known as the cut-in pressure, at which point the compressor restarts to refill the tank. A larger tank size results in a slower pressure drop during usage, ensuring more consistent and stable pressure for the connected tools or equipment.
4. Duty Cycle: The duty cycle refers to the amount of time an air compressor can operate within a given time period. A larger tank size can increase the duty cycle of the compressor. The compressor can run for longer periods before reaching its duty cycle limit, reducing the risk of overheating and improving overall performance.
5. Tool Compatibility: The tank size can also impact the compatibility with certain tools or equipment. Some tools, such as high-demand pneumatic tools or spray guns, require a continuous and adequate supply of compressed air. A larger tank size ensures that the compressor can meet the air demands of such tools without causing pressure drops or affecting performance.
It is important to note that while a larger tank size offers advantages in terms of air storage and performance, it also results in a larger and heavier compressor unit. Consider the intended application, available space, and portability requirements when selecting an air compressor with the appropriate tank size.
Ultimately, the optimal tank size for an air compressor depends on the specific needs of the user and the intended application. Assess the air requirements, duty cycle, and desired performance to determine the most suitable tank size for your air compressor.
editor by CX 2023-12-07