Tag Archives: variable speed air compressor

China OEM 110kw 748.4cfm Oil-Less 22kw Variable Speed Compressor Air Made in China portable air compressor

Product Description

Product description

DHH belt driven series oil-less screw compressors are lower noise, coupling high efficiency, reliable quality.
ZheJiang CHINAMFG CHINAMFG features:
1. perfect performance
2. microcomputer controller
3. CHINAMFG CHINAMFG OEM acceptablee
Welcome to visit our factory!
 
Rotary screw air compressor(variable speed)

DHH Air flow Capacity (m3/min) Power Noise Outlet diameter Dimension Weight
    MODEL 0.7Mpa 0.8Mpa 1.0Mpa 1.3Mpa (KW) DB(A) INCH W×D×H mm    Kg
DCF-30A 3.6 3.4 3.2 2.8 22 68 G1″ 1300×920×1100 730
DCF-50A 6.5 6.2 5.6 4.9 37 69  G1 1/2″ 1450×1000×1240 950
DCF-75A/W 10.1 9.5 8.5 7.5 55 70 G2″ 1720×1200×1340 1750
DCF-100A/W 13.6 12.8 12.3 10.2 75 72 G2″ 2571×1260×1460 1980
DCF-125A/W 16.1 15.5 14.0 12.5 90 72 DN50 2571×1260×1460 2580
DCF-150A/W 21.2 19.6 17.8 15.5 110 73 DN65 2300×1600×1790 2900
DCF-175A/W 24.1 23.2 20.5 17.8 132 74 DN65 2300×1600×1790 3100
DCF-220A/W 28.8 27.8 25.0 22.4 160 75 DN80 2500×1700×1850 3600
DCF-250A/W 32.5 31.2 28.0 25.8 185 77 DN80 2500×1700×1850 3980
DCF-270A/W 34.5 34.0 30.5 28 200 76 DN80 2500×1700×1850 4350
DCF-300A/W 36.8 34.7 31.5 29.5 220 80 DN100 2800×1900×1950 4950
DCF-350A/W 43.0 41.5 38.0 34.9 250 78 DN100 2800×1900×1950 5300
DCF-375A/W 51.35 50.59 46.06 41.51 280 82 DN125 4200×2200×2240 7600
DCF-400A/W 56.79 55.95 50.08 45.62 315 82 DN125 4200×2200×2240 7600
DCF-450A/W 66.08 65.43 55.12 49.58 355 83 DN125 4200×2200×2240 8200
DCF-500A/W 75.05 74.31 64.46 58.07 400 83 DN125 4200×2200×2240 8200

A represents air-cooling type, W represents water-cooling type;
Working environment temperature: – 5 °C ~ 45 °C;
The exhaust temperature is less than environment temperature about + 10 °C ~ 15 °C.
Driving mode: belt transmission;
Startup mode: frequency start.
Work power: 380V / 50HZ, 460V / 230V / 6KV and 10KV voltages can be made for customers;
F.A.D volume flow test is according to ASMC PTC9 or ISO1217 standard (GB/T3853).
ZheJiang CHINAMFG screw air compressor factory, mainly produce screw type air compressors, range from belt driven,
coupling driven to varaible speed and pm permanent magent frequency sires.
welcome to contact us for more details
 
Core components of our screw air compressor                      

No. Part Name Manufacturer
1 Air end Hanbell(or CHINAMFG Dynamic)
2 Pressure sensor America MSI
3 Temperature sensor Italy S.E.C.
4 intake valve Red-Star
5 Automatic proportional valve Italy S.E.C./ Austria HOERBIGER
6 PLC Controller chip Italy S.E.C.
7 PLC Controller (English) DHH
8 Contactor  
9 Motor Equipped with CHINAMFG bearings(Zhongda/ Huabing motor)
10 air filter DHH
11 Oil filter German MANN
12 Oil-air separator element DHH
13 Min. pressure valve Italy S.E.C.
14 Temperature control valve America AMOT CONTROLS/Italy S.E.C.
15 Solenoid valve Italy O.D.E
16 Air Cooler Made in China
17 Oil tank Made in China
18 Safety valve Made in China
19 Base and Box DHH
20 Fan Made in China
21 Pipeline DHH

More information about us:
1. We have ISO9001 management system
2. All of our air compressors are with CE, SGS, TUV, BV certificates
3. We have our own Export Lisence,  can do export by ourself
4. We have our own Trade Mark which is famous in our home market, and can protect your market if you distribute our air compressors.
5. We attend air compressor exhibition shows every year,  in China and oversea countries.
6. We will send you formal Agent Authorization if you are our exclusive distribution agent.

Our factory 

Project case

Certificate

Project Case

Customer Feedback

Packaging and Shipping 

• Packing Details: Plywood crate pallet plus foam board and bubble film, Full closed wooden case. 1pcs/each package (for stationary screw air compressor)

• Shipping method: by sea, by LCL/FCL or as requested

• Delivery method: FOB, CFR, CIF and EXW etc.

• Delivery time: in 7-15 days after receiving deposit (customized machines not included)

About us

Dehaha Compressor ZheJiang Co.,Ltd.was founded in 1996 with over 150 skilled employees and more than 25 R&D engineersteams ‘ .We focus on the research & develop,manufacture and energy-saving solutions of screw air compressor to create value for customers and society.In 2018 our total sales volume approached 15 million US dollars.By over 23 years enhanced experiences of designing, producing and marketing,today our valued customers are over 130 countries.

Germany Standard and 13 years exporting experience help us won more than 50 loyal overseas agents.

Dehaha’s primary businesses focus in following key areas:
Oil-injected rotary screw compressors
Portable screw air compressors
Oil free air compressors
High pressure air compressors
Air treatment equipment

At Dehaha,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.We have sales representatives who can speak English,Spanish,French,and Russian which makes it easier for our clients from all over the world to interact and negotiate with us.

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”. CHINAMFG 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.

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.

After-sale Service

• Any questions or requests before, during or after sales, we would like to help you any time and will find you the best solution in 24 hours.
• Warranty: One year for the whole machine Genuine spare parts will be provided with the best price.
• An overboard engineer service is available.

 Overseas Engineer Service
• We are available to send our engineer for aboard service. Only need you to arrange accommodation, transportation, and translator. The extra cost for each will be discussed based on the local price level.

Special Customized Service

(1) Full OEM
• Quantity: at least 5 pcs
• In this plan, we will do all the changes (Color, nameplate, and logo) as your need, and will not charge extra fee.

(2) Half OEM
• Quantity: no limit
• Under this program, we can make the necessary alteration (nameplate and logo) but we will charge some extra fee for the nameplate, as the nameplate factory has the MOQ.

(3) Logo OEM
• Quantity: no limit
• Only the logo will be changed to yours, and no extra fee will be charged.

FAQ

Q1. Are you trading company or manufacture ?
A: We are professional manufacture of screw air compressor of 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.

 

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

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air compressor

What role do air dryers play in compressed air systems?

Air dryers play a crucial role in compressed air systems by removing moisture and contaminants from the compressed air. Compressed air, when generated, contains water vapor from the ambient air, which can condense and cause issues in the system and end-use applications. Here’s an overview of the role air dryers play in compressed air systems:

1. Moisture Removal:

Air dryers are primarily responsible for removing moisture from the compressed air. Moisture in compressed air can lead to problems such as corrosion in the system, damage to pneumatic tools and equipment, and compromised product quality in manufacturing processes. Air dryers utilize various techniques, such as refrigeration, adsorption, or membrane separation, to reduce the dew point of the compressed air and eliminate moisture.

2. Contaminant Removal:

In addition to moisture, compressed air can also contain contaminants like oil, dirt, and particles. Air dryers help in removing these contaminants to ensure clean and high-quality compressed air. Depending on the type of air dryer, additional filtration mechanisms may be incorporated to enhance the removal of oil, particulates, and other impurities from the compressed air stream.

3. Protection of Equipment and Processes:

By removing moisture and contaminants, air dryers help protect the downstream equipment and processes that rely on compressed air. Moisture and contaminants can negatively impact the performance, reliability, and lifespan of pneumatic tools, machinery, and instrumentation. Air dryers ensure that the compressed air supplied to these components is clean, dry, and free from harmful substances, minimizing the risk of damage and operational issues.

4. Improved Productivity and Efficiency:

Utilizing air dryers in compressed air systems can lead to improved productivity and efficiency. Dry and clean compressed air reduces the likelihood of equipment failures, downtime, and maintenance requirements. It also prevents issues such as clogging of air lines, malfunctioning of pneumatic components, and inconsistent performance of processes. By maintaining the quality of compressed air, air dryers contribute to uninterrupted operations, optimized productivity, and cost savings.

5. Compliance with Standards and Specifications:

Many industries and applications have specific standards and specifications for the quality of compressed air. Air dryers play a vital role in meeting these requirements by ensuring that the compressed air meets the desired quality standards. This is particularly important in industries such as food and beverage, pharmaceuticals, electronics, and automotive, where clean and dry compressed air is essential for product integrity, safety, and regulatory compliance.

By incorporating air dryers into compressed air systems, users can effectively control moisture and contaminants, protect equipment and processes, enhance productivity, and meet the necessary quality standards for their specific applications.

air compressor

What is the energy efficiency of modern air compressors?

The energy efficiency of modern air compressors has significantly improved due to advancements in technology and design. Here’s an in-depth look at the energy efficiency features and factors that contribute to the efficiency of modern air compressors:

Variable Speed Drive (VSD) Technology:

Many modern air compressors utilize Variable Speed Drive (VSD) technology, also known as Variable Frequency Drive (VFD). This technology allows the compressor motor to adjust its speed according to the compressed air demand. By matching the motor speed to the required airflow, VSD compressors can avoid excessive energy consumption during periods of low demand, resulting in significant energy savings compared to fixed-speed compressors.

Air Leakage Reduction:

Air leakage is a common issue in compressed air systems and can lead to substantial energy waste. Modern air compressors often feature improved sealing and advanced control systems to minimize air leaks. By reducing air leakage, the compressor can maintain optimal pressure levels more efficiently, resulting in energy savings.

Efficient Motor Design:

The motor of an air compressor plays a crucial role in its energy efficiency. Modern compressors incorporate high-efficiency electric motors that meet or exceed established energy efficiency standards. These motors are designed to minimize energy losses and operate more efficiently, reducing overall power consumption.

Optimized Control Systems:

Advanced control systems are integrated into modern air compressors to optimize their performance and energy consumption. These control systems monitor various parameters, such as air pressure, temperature, and airflow, and adjust compressor operation accordingly. By precisely controlling the compressor’s output to match the demand, these systems ensure efficient and energy-saving operation.

Air Storage and Distribution:

Efficient air storage and distribution systems are essential for minimizing energy losses in compressed air systems. Modern air compressors often include properly sized and insulated air storage tanks and well-designed piping systems that reduce pressure drops and minimize heat transfer. These measures help to maintain a consistent and efficient supply of compressed air throughout the system, reducing energy waste.

Energy Management and Monitoring:

Some modern air compressors feature energy management and monitoring systems that provide real-time data on energy consumption and performance. These systems allow operators to identify energy inefficiencies, optimize compressor settings, and implement energy-saving practices.

It’s important to note that the energy efficiency of an air compressor also depends on factors such as the specific model, size, and application. Manufacturers often provide energy efficiency ratings or specifications for their compressors, which can help in comparing different models and selecting the most efficient option for a particular application.

Overall, modern air compressors incorporate various energy-saving technologies and design elements to enhance their efficiency. Investing in an energy-efficient air compressor not only reduces operational costs but also contributes to sustainability efforts by minimizing energy consumption and reducing carbon emissions.

air compressor

What is the role of air compressor tanks?

Air compressor tanks, also known as receiver tanks or air receivers, play a crucial role in the operation of air compressor systems. They serve several important functions:

1. Storage and Pressure Regulation: The primary role of an air compressor tank is to store compressed air. As the compressor pumps air into the tank, it accumulates and pressurizes the air. The tank acts as a reservoir, allowing the compressor to operate intermittently while providing a steady supply of compressed air during periods of high demand. It helps regulate and stabilize the pressure in the system, reducing pressure fluctuations and ensuring a consistent supply of air.

2. Condensation and Moisture Separation: Compressed air contains moisture, which can condense as the air cools down inside the tank. Air compressor tanks are equipped with moisture separators or drain valves to collect and remove this condensed moisture. The tank provides a space for the moisture to settle, allowing it to be drained out periodically. This helps prevent moisture-related issues such as corrosion, contamination, and damage to downstream equipment.

3. Heat Dissipation: During compression, air temperature increases. The air compressor tank provides a larger surface area for the compressed air to cool down and dissipate heat. This helps prevent overheating of the compressor and ensures efficient operation.

4. Pressure Surge Mitigation: Air compressor tanks act as buffers to absorb pressure surges or pulsations that may occur during compressor operation. These surges can be caused by variations in demand, sudden changes in airflow, or the cyclic nature of reciprocating compressors. The tank absorbs these pressure fluctuations, reducing stress on the compressor and other components, and providing a more stable and consistent supply of compressed air.

5. Energy Efficiency: Air compressor tanks contribute to energy efficiency by reducing the need for the compressor to run continuously. The compressor can fill the tank during periods of low demand and then shut off when the desired pressure is reached. This allows the compressor to operate in shorter cycles, reducing energy consumption and minimizing wear and tear on the compressor motor.

6. Emergency Air Supply: In the event of a power outage or compressor failure, the stored compressed air in the tank can serve as an emergency air supply. This can provide temporary air for critical operations, allowing time for maintenance or repairs to be carried out without disrupting the overall workflow.

Overall, air compressor tanks provide storage, pressure regulation, moisture separation, heat dissipation, pressure surge mitigation, energy efficiency, and emergency backup capabilities. They are vital components that enhance the performance, reliability, and longevity of air compressor systems in various industrial, commercial, and personal applications.

China OEM 110kw 748.4cfm Oil-Less 22kw Variable Speed Compressor Air Made in China   portable air compressorChina OEM 110kw 748.4cfm Oil-Less 22kw Variable Speed Compressor Air Made in China   portable air compressor
editor by CX 2023-10-18