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China best 50HP Direct Water Lubrication Single Screw Oil Free Air Compressor air compressor for car

Product Description

50HP Direct Water Lubrication Single Screw Oil Free Air Compressor
Model: DCW-50A

Type: totally oil free water lubrication screw air compressor
Screw type: Single screw
Free air delivery: 5.9m3/min
Working pressure: 8 bar 0.8Mpa
Max pressure: 10 bar 1.0 Mpa
Control: PLC
Driven: direct
Cooling: by water
Electric motor: 50hp 37kW  380v/50hz/3ph,also can make 220v/60hz,380v/60hz,440v/60hz,600v/60hz,415v/50hz and dual voltage etc.
Discharge temperature: less than ambient +8 ºC
Noise: less than 71dB(A)
Air outlet size: G1 1/2″
Dimension: 1760*1250*1600mm
Weight: 1100kg

1. Air-end
Single screw air-end made by Japanese technology, The interior consists of 1 horizontal screw plus up & down 2 vertically placed star wheels, it’s more like “3 screws”. As this symmetrical structure design makes the axial force and radial force cancel each other, improve the stability of the operation and compression efficiency, but lesser noise.

No like the copper screw, our air-end is made buy stainless steel without any coating. Because copper screw has the possibility to generate verdigris which can spoiled your water and air, vanish all of your effort.

2. Motor
Custom made professional motor for oil-free series, motor as the driving component, it’s transmission ratio, service factor and rpm, almost everything affect directly to the driven component. We use permanent magnet motor which has no coil and many unnecessary parts, reduce the failure chance, decrease motor size and weight, but gives higher transmission ration.

3. Automatic Water level Switch
According to the internal circulating water, the switch will automatically turn-on and start replenish if needed, to ensure the lubrication and cooling effect, avoid overheating all the time without any supervision needed.

4. Air Filters
” Mann” Original filters, using the latest alternating closed filter chamber, combined with tandem filter alignment which increases 50% filtration area by small footprint, purify the air from the very beginning.

The entire element does not contain any metal parts, you can use simply do incineration or other easy treatment. The filter housing is reusable, just clean or replace the element, it saves resources and cost.

5. Valves
Original Japanese imported valves, the best option to prevent downtime caused by leakage, plugging etc,. Ensure quality not only by experiences, but also endorsement from well-know brands, as we know detail leads to success.

6. Cooling system
Reasonable cooling method, cooling method (by air/water) is optional due to customer, accurately calculate the needed cooling air/water to avoid additional energy consumption. Use copper heat ex-changer for better heat dissipation effect, help compressor performs always the best!

7. Intake valve
Custom made for every oil-free, like opening way, angle, diameter and other many aspects, to realize 0~100% adjustment air suction range automatically. In the meantime, the the seal ring can reduce pressure loss. It’s active and long life ensure stable loading and unloading for compressor.

8. Invetor 
With the strategic cooperation agreement between CHINAMFG & Delta, every each invertor we use is special made from Delta, tolerate higher temperature, take care complex inlet power and maximize the performance of the permanent magnet motor. Relying on Delta’s CHINAMFG service, a better experiment is prepared for you.

9. Water/air separator
Self-develope and designed water/air separator, adopts vortex water-air separation technology, effectively separates the moisture from the compressed air, reduces the burden for after air treatment . It’s totally made by stainless steel, avoid rust, keep system clean.

10. Water softener
Softened water is the only water can be used in water lube compressor, but many impurities and micro elements are exist in our water sources, if use directly the local water, then impurities can damage air-end, tanks from inside.

Model Cooling Working Pressure Air Delivery Motor Power Air/Water 
Cooling 
vloume
Dimension Weight
 
bar psig m3/min cfm kw/hp L/min mm kg
DCW-10A Air cooling 7 100 1.3 46 7.5/10 2 1100*845*1260 520
8 116 1.2 42
10 145 / /
DCW-15A 7 100 1.6 57 11/15 2.5/12.5 1100*845*1260 580
8 116 1.5 53
10 145 1.4 49
DCW-20A 7 100 2.5 88 15/20 3.5/4 1520*1100*1400 620
8 116 2.3 81
10 145 2 71
DCW-25A 7 100 3.3 116 18.5/25 4 1520*1100*1400 720
8 116 3.1 109
10 145 2.5 88
DCW-30A 7 100 3.7 131 22/30 5 1520*1100*1400 830
8 116 3.5 124
10 145 3 106
DCW-40A Water cooling 7 100 5.3 187 30/40 7 1760*1250*1600 980
8 116 5 177
10 145 4.3 152
DCW-50A 7 100 6.2 219 37/50 9 1760*1250*1600 1100
8 116 5.9 208
10 145 5 177
DCW-60A 7 100 7.5 265 45/60 10 1900*1250*1360 1250
8 116 7 247
10 145 6 212
DCW-75A 7 100 10 353 55/75 12 1900*1250*1360 1450
8 116 9.5 335
10 145 7.9 279
DCW-100A 7 100 13 459 75/100 18 2000*1250*1360 1600
8 116 12.5 441
10 145 10 353
DCW-125A 7 100 15 530 90/125 20 2100*1850*1700 2000
8 116 13.5 477
10 145 12.8 452
DCW-150A 7 100 20 706 110/150 24 2100*1850*1700 2500
8 116 18.5 653
10 145 16.5 582
DCW-175A 7 100 23.5 830 132/175 30 2300*1900*1900 2650
8 116 23 812
10 145 20 706
DCW-220A 7 100 26 918 160/220 35 2300*1900*1900 2800
8 116 24 847
10 145 23 812
DCW-250A 7 100 32.5 1147 180/250 43 2300*1900*1900 3000
8 116 31 1094
10 145 28 989
DCW-350A 7 100 42 1483 250/350 53 3200*2100*2000 4800

Our Service

1.24/7 after sales service support in different languages.
2.Follow up the feedback of products in 2 months interval by email or call.
3.Guidance of installation and commissioning on site can be provided by factory-trained technicians or local Authorized Service Center.
4.Technical training for customers in DEHAHA air compressor factory or working site.
5.Plenty of original spare parts with proven quality are all available from our central stocks in ZheJiang and all distributors’depots. 
6.All kinds of technical documents in different languages.

1.Why customer choose us? 
DEHAHA COMPRESSOR ZheJiang CO.,LTD.with 24 years old history,we are specialized in Rotary Screw Air Compressor.Germany Standard and 13 years exporting experience help us won more than 30 loyal foreign agents.We warmly welcome your small trial order for quality or market test.

2.Are you a manufacturer or trading company?
We are professional manufacturer with big modern factory in HangZhou,China,with professional design team.Both OEM & ODM service can be accepted.

3.Where is your factory located? How can I visit there?
Our factory is located in HangZhou City, ZheJiang Province, China. We can pick up you from ZheJiang , it’s about 1 hour from ZheJiang Xihu (West Lake) Dis. Airport to our factory. Warmly welcome to visit us!

4.What’s your delivery time?
380V 50HZ we can delivery the goods within 14 days. Other electricity or other color we will delivery within 22 days,if urgently order,pls contact our sales in advance.

5.How long is your air compressor warranty?
One year for the whole machine and 2 years for screw air end, except consumable spare parts and we can provide some spare parts of the machines.

6.How does your factory do regarding quality control?
Quality is everything. we always attach great importance to quality controlling from the very beginning to the very end. Our factory has gained ISO9001:2015 authentication and CE certificate.

7.How long could your air compressor be used?
Generally, more than 10 years.

8. What’s payment term?
T/T,L/C,D/P,Western Union,Paypal,Credit Card,and etc.Also we could accept USD, RMB, Euro and other currency.

9.How about your customer service?
24 hours on-line service available.48 hours problem solved promise.

10.How about your after-sales service?
(1) Provide customers with installation and commissioning online instructions.
(2) Well-trained engineers available to overseas service.
(3) CHINAMFG agents and after service available. 

Lubrication Style: Lubricated
Cooling System: Air Cooling
Power Source: AC Power
Cylinder Position: Angular
Structure Type: Closed Type
Installation Type: Stationary Type
Customization:
Available

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air compressor

What is the role of air compressors in power generation?

Air compressors play a significant role in power generation, supporting various operations and equipment within the industry. Here are some key roles of air compressors in power generation:

1. Combustion Air Supply:

Air compressors are used to supply compressed air for the combustion process in power generation. In fossil fuel power plants, such as coal-fired or natural gas power plants, compressed air is required to deliver a steady flow of air to the burners. The compressed air helps in the efficient combustion of fuel, enhancing the overall performance and energy output of the power plant.

2. Instrumentation and Control:

Air compressors are utilized for instrumentation and control systems in power generation facilities. Compressed air is used to operate pneumatic control valves, actuators, and other pneumatic devices that regulate the flow of steam, water, and gases within the power plant. The reliable and precise control provided by compressed air ensures efficient and safe operation of various processes and equipment.

3. Cooling and Ventilation:

In power generation, air compressors are involved in cooling and ventilation applications. Compressed air is used to drive air-operated cooling fans and blowers, providing adequate airflow for cooling critical components such as generators, transformers, and power electronics. The compressed air also assists in maintaining proper ventilation in control rooms, substations, and other enclosed spaces, helping to dissipate heat and ensure a comfortable working environment.

4. Cleaning and Maintenance:

Air compressors are employed for cleaning and maintenance tasks in power generation facilities. Compressed air is utilized to blow away dust, dirt, and debris from equipment, machinery, and electrical panels. It helps in maintaining the cleanliness and optimal performance of various components, reducing the risk of equipment failure and improving overall reliability.

5. Pneumatic Tools and Equipment:

In power generation plants, air compressors provide the necessary compressed air for operating pneumatic tools and equipment. These tools include impact wrenches, pneumatic drills, grinders, and sandblasting equipment, which are utilized for installation, maintenance, and repair tasks. The high-pressure air generated by compressors enables efficient and reliable operation of these tools, enhancing productivity and reducing manual effort.

6. Nitrogen Generation:

Sometimes, air compressors are used in power generation for nitrogen generation. Compressed air is passed through a nitrogen generator system, which separates nitrogen from other components of air, producing a high-purity nitrogen gas stream. Nitrogen is commonly used in power plant applications, such as purging systems, blanketing in transformers, and generator cooling, due to its inert properties and low moisture content.

7. Start-up and Emergency Systems:

Air compressors are an integral part of start-up and emergency systems in power generation. Compressed air is utilized to power pneumatic starters for gas turbines, providing the initial rotation needed to start the turbine. In emergency situations, compressed air is also used to actuate emergency shutdown valves, safety systems, and fire suppression equipment, ensuring the safe operation and protection of the power plant.

Overall, air compressors contribute to the efficient and reliable operation of power generation facilities, supporting combustion processes, control systems, cooling, cleaning, and various other applications critical to the power generation industry.

air compressor

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.

air compressor

How do oil-lubricated and oil-free air compressors differ?

Oil-lubricated and oil-free air compressors differ in terms of their lubrication systems and the presence of oil in their operation. Here are the key differences:

Oil-Lubricated Air Compressors:

1. Lubrication: Oil-lubricated air compressors use oil for lubricating the moving parts, such as pistons, cylinders, and bearings. The oil forms a protective film that reduces friction and wear, enhancing the compressor’s efficiency and lifespan.

2. Performance: Oil-lubricated compressors are known for their smooth and quiet operation. The oil lubrication helps reduce noise levels and vibration, resulting in a more comfortable working environment.

3. Maintenance: These compressors require regular oil changes and maintenance to ensure the proper functioning of the lubrication system. The oil filter may need replacement, and the oil level should be regularly checked and topped up.

4. Applications: Oil-lubricated compressors are commonly used in applications that demand high air quality and continuous operation, such as industrial settings, workshops, and manufacturing facilities.

Oil-Free Air Compressors:

1. Lubrication: Oil-free air compressors do not use oil for lubrication. Instead, they utilize alternative materials, such as specialized coatings, self-lubricating materials, or water-based lubricants, to reduce friction and wear.

2. Performance: Oil-free compressors generally have a higher airflow capacity, making them suitable for applications where a large volume of compressed air is required. However, they may produce slightly more noise and vibration compared to oil-lubricated compressors.

3. Maintenance: Oil-free compressors typically require less maintenance compared to oil-lubricated ones. They do not need regular oil changes or oil filter replacements. However, it is still important to perform routine maintenance tasks such as air filter cleaning or replacement.

4. Applications: Oil-free compressors are commonly used in applications where air quality is crucial, such as medical and dental facilities, laboratories, electronics manufacturing, and painting applications. They are also favored for portable and consumer-grade compressors.

When selecting between oil-lubricated and oil-free air compressors, consider the specific requirements of your application, including air quality, noise levels, maintenance needs, and expected usage. It’s important to follow the manufacturer’s recommendations for maintenance and lubrication to ensure the optimal performance and longevity of the air compressor.

China best 50HP Direct Water Lubrication Single Screw Oil Free Air Compressor   air compressor for carChina best 50HP Direct Water Lubrication Single Screw Oil Free Air Compressor   air compressor for car
editor by CX 2023-11-11

China Best Sales 15HP 30HP 50HP Oil Free Silent Oilless Screw Air Compressor with Air Dryer with Good quality

Product Description

15HP 30HP 50HP Oil Free Silent Oilless Screw Air Compressor With Air Dryer

 

Main Features:

1. The flexible belt will be automatically tensioned in use. Through adjusting the tension, minimize the loss of pressure and power, to enhance the efficiency of compression.

2. Using the precise spin-oil separator and special two-pole buffer separation, it can minimize the oil consumption, guarantee the outlet gas purity, and extend the lifetime of filter elements.

3.  With the toothed V-belt, it has good heat dissipation, long life, higher gear drive and transmission efficiency, as high as over 98%.

Oil FilterGood Quality filters ensure longer working life and save the maintenance time and cost.

Stainless Steel Hoses: High and low temperature resistant, high pressure resistant. 

Compressed Air Vessel: Reduction of pressure drops and energy costs, quality air with low oil content.

Air End: Imported DLOL air end, advanced profile design. 

Electric Motor: Premium efficiency Totally TEFC IP54/IP55 motor (Class F insulation) protects against dust and chemicals etc.

Air Filter: Two-stage dust removal and filtering system with efficiency of up to 99.9% even in heavy-duty environment. 

Cooler: High quality aluminum material, alternating expression cooler fins, ensure the perfect radiating effect.

Technical parameters:

Our workshop:

 

After-sales Service: Free Spare Parts
Warranty: One Year
Lubrication Style: Lubricated
Cooling System: Air Cooling
Power Source: AC Power
Cylinder Position: Vertical
Customization:
Available

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air compressor

How are air compressors used in the food and beverage industry?

Air compressors play a vital role in the food and beverage industry, providing a reliable source of compressed air for various applications. Here are some common uses of air compressors in this industry:

1. Packaging and Filling:

Air compressors are extensively used in packaging and filling operations in the food and beverage industry. Compressed air is utilized to power pneumatic systems that control the movement and operation of packaging machinery, such as filling machines, capping machines, labeling equipment, and sealing devices. The precise and controlled delivery of compressed air ensures accurate and efficient packaging of products.

2. Cleaning and Sanitization:

Air compressors are employed for cleaning and sanitization purposes in food and beverage processing facilities. Compressed air is used to operate air-powered cleaning equipment, such as air blowguns, air-operated vacuum systems, and air knives. It helps remove debris, dust, and contaminants from production lines, equipment, and hard-to-reach areas. Additionally, compressed air is used for drying surfaces after cleaning and for applying sanitizing agents.

3. Cooling and Refrigeration:

In the food and beverage industry, air compressors are utilized in cooling and refrigeration systems. Compressed air is used to drive air compressors in refrigeration units, enabling the circulation of refrigerants and maintaining optimal temperatures for food storage and preservation. The controlled airflow provided by the compressors facilitates efficient cooling and refrigeration processes.

4. Aeration and Mixing:

Air compressors are used for aeration and mixing applications in the food and beverage industry. Compressed air is introduced into processes such as fermentation, dough mixing, and wastewater treatment. It helps in promoting oxygen transfer, enhancing microbial activity, and facilitating proper mixing of ingredients or substances, contributing to the desired quality and consistency of food and beverage products.

5. Pneumatic Conveying:

In food processing plants, air compressors are employed for pneumatic conveying systems. Compressed air is used to transport bulk materials such as grains, powders, and ingredients through pipes or tubes. It enables the gentle and efficient movement of materials without the need for mechanical conveyors, reducing the risk of product damage or contamination.

6. Quality Control and Testing:

Air compressors are utilized in quality control and testing processes within the food and beverage industry. Compressed air is used for leak testing of packaging materials, containers, and seals to ensure product integrity. It is also employed for spraying air or gases during sensory analysis and flavor testing.

7. Air Agitation:

In certain food and beverage production processes, air compressors are used for air agitation. Compressed air is introduced into tanks, mixing vessels, or fermentation tanks to create turbulence and promote mixing or chemical reactions. It aids in achieving consistent product quality and uniform distribution of ingredients or additives.

It is important to note that air compressors used in the food and beverage industry must meet strict hygiene and safety standards. They may require specific filtration systems, oil-free operation, and compliance with food safety regulations to prevent contamination or product spoilage.

By utilizing air compressors effectively, the food and beverage industry can benefit from improved productivity, enhanced product quality, and efficient processing operations.

air compressor

How are air compressors employed in the mining industry?

Air compressors play a crucial role in the mining industry, providing reliable and efficient power for various mining operations. Here are some common applications of air compressors in mining:

1. Exploration and Drilling:

Air compressors are used during exploration and drilling activities in the mining industry. Compressed air is used to power drilling rigs, pneumatic hammers, and other drilling equipment. The high-pressure air generated by the compressor helps in drilling boreholes, extracting core samples, and exploring potential mineral deposits.

2. Ventilation and Air Quality Control:

Air compressors are employed in underground mining to provide ventilation and control air quality. Compressed air is used to operate ventilation fans and air circulation systems, ensuring adequate airflow and removing harmful gases, dust, and fumes from the mining tunnels and work areas.

3. Material Conveyance:

In mining operations, air compressors are used for material conveyance. Pneumatic systems powered by air compressors are utilized to transport materials such as coal, ore, and other minerals. Compressed air is used to operate pneumatic conveyors, pumps, and material handling equipment, allowing for efficient and controlled movement of bulk materials.

4. Dust Suppression:

Air compressors are employed for dust suppression in mining areas. Compressed air is used to spray water or other suppressants to control dust generated during mining activities. This helps in maintaining a safe and healthy work environment, reducing the risks associated with dust inhalation and improving visibility.

5. Instrumentation and Control:

Air compressors are used for instrumentation and control purposes in mining operations. Compressed air is utilized to power pneumatic control systems, control valves, and actuators. These systems regulate the flow of fluids, control equipment movements, and ensure the proper functioning of various mining processes.

6. Explosive Applications:

In mining, air compressors are used for explosive applications. Compressed air is employed to power pneumatic tools used for rock fragmentation, such as rock drills and pneumatic breakers. The controlled power of compressed air enables safe and efficient rock breaking without the need for traditional explosives.

7. Maintenance and Repair:

Air compressors are essential for maintenance and repair activities in the mining industry. Compressed air is used for cleaning machinery, removing debris, and powering pneumatic tools for equipment maintenance and repair tasks. The versatility and portability of air compressors make them valuable assets in maintaining mining equipment.

It is important to note that different mining operations may have specific requirements and considerations when selecting and using air compressors. The size, capacity, and features of air compressors can vary based on the specific mining application and environmental conditions.

By utilizing air compressors effectively, the mining industry can benefit from increased productivity, improved safety, and efficient operation of various mining processes.

air compressor

What are the key components of an air compressor system?

An air compressor system consists of several key components that work together to generate and deliver compressed air. Here are the essential components:

1. Compressor Pump: The compressor pump is the heart of the air compressor system. It draws in ambient air and compresses it to a higher pressure. The pump can be reciprocating (piston-driven) or rotary (screw, vane, or scroll-driven) based on the compressor type.

2. Electric Motor or Engine: The electric motor or engine is responsible for driving the compressor pump. It provides the power necessary to operate the pump and compress the air. The motor or engine’s size and power rating depend on the compressor’s capacity and intended application.

3. Air Intake: The air intake is the opening or inlet through which ambient air enters the compressor system. It is equipped with filters to remove dust, debris, and contaminants from the incoming air, ensuring clean air supply and protecting the compressor components.

4. Compression Chamber: The compression chamber is where the actual compression of air takes place. In reciprocating compressors, it consists of cylinders, pistons, valves, and connecting rods. In rotary compressors, it comprises intermeshing screws, vanes, or scrolls that compress the air as they rotate.

5. Receiver Tank: The receiver tank, also known as an air tank, is a storage vessel that holds the compressed air. It acts as a buffer, allowing for a steady supply of compressed air during peak demand periods and reducing pressure fluctuations. The tank also helps separate moisture from the compressed air, allowing it to condense and be drained out.

6. Pressure Relief Valve: The pressure relief valve is a safety device that protects the compressor system from over-pressurization. It automatically releases excess pressure if it exceeds a predetermined limit, preventing damage to the system and ensuring safe operation.

7. Pressure Switch: The pressure switch is an electrical component that controls the operation of the compressor motor. It monitors the pressure in the system and automatically starts or stops the motor based on pre-set pressure levels. This helps maintain the desired pressure range in the receiver tank.

8. Regulator: The regulator is a device used to control and adjust the output pressure of the compressed air. It allows users to set the desired pressure level for specific applications, ensuring a consistent and safe supply of compressed air.

9. Air Outlet and Distribution System: The air outlet is the point where the compressed air is delivered from the compressor system. It is connected to a distribution system comprising pipes, hoses, fittings, and valves that carry the compressed air to the desired application points or tools.

10. Filters, Dryers, and Lubricators: Depending on the application and air quality requirements, additional components such as filters, dryers, and lubricators may be included in the system. Filters remove contaminants, dryers remove moisture from the compressed air, and lubricators provide lubrication to pneumatic tools and equipment.

These are the key components of an air compressor system. Each component plays a crucial role in the generation, storage, and delivery of compressed air for various industrial, commercial, and personal applications.

China Best Sales 15HP 30HP 50HP Oil Free Silent Oilless Screw Air Compressor with Air Dryer   with Good qualityChina Best Sales 15HP 30HP 50HP Oil Free Silent Oilless Screw Air Compressor with Air Dryer   with Good quality
editor by CX 2023-10-25