China supplier Direct Driven Screw Air Compressor 125HP with high quality

Product Description

Our Factory have been in air compressors industry for 24 years,  from piston type air compressor late to screw type air compressors,  now we have fixed speed (belt driven), fixed speed (direct driven) screw air compressors;VSD variable speed frequency screw air compressors, inverter compressors work very good and save electricity;Besides we also have the newest technology for permanent magnet frequency screw air compressors,  this new technology screw air compressor super environmental and save energy,  quite lower noise, almost mute, best choice if your work shop have high request of environment.

Welcome to choose us as your partner and best supplier!
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Direct driven screw air compressor 

1. Reliable quality, competitive price
2. German Air end
3. Perfect service network
4. Easy to install, operate and maintain.
5. Low noise, Low energy consumption, Low running, Low maintenance cost.
6. Aptitude and intelligent Control, PLC control, LCD displayer. 

DHH Air flow Capacity (m 3 /min)/cfm Power Noise Outlet
diameter
Dimension Weight
MODEL 0.7Mpa 0.8Mpa 1.0Mpa 1.3Mpa KW HP DB(A) INCH W× D× H mm Kg
m 3 cfm m 3 cfm m 3 cfm m 3 cfm    
DC-30A 3.6 127.1 3.4 120 3.2 113 2.8 98.9 22 30 68 G1″ 1300× 920× 1100 700
DC-50A 6.5 229.5 6.2 219 5.6 197.8 4.9 173 37 50 69   G1 1/2″ 1450× 1000× 1240 900
DC-75A/W 10.1 356.7 9.5 335.5 8.5 300.2 7.5 264.9 55 75 70 G2″ 1720× 1200× 1340 1700
DC-100A/W 13.6 480.3 12.8 452 12.3 434.4 10.2 360.2 75 100 72 G2″ 2571× 1260× 1460 1900
DC-125A/W 16.1 568.5 15.5 547.4 14.0 494.4 12.5 441.4 90 125 72 DN50 2571× 1260× 1460 2500
DC-150A/W 21.2 748.7 19.6 692.2 17.8 628.6 15.5 547.4 110 150 73 DN65 2300× 1600× 1790 2800
DC-175A/W 24.1 851 23.2 819.3 20.5 724 17.8 628.6 132 175 74 DN65 2300× 1600× 1790 3000
DC-220A/W 28.8 1017 27.8 981.7 25.0 882.9 22.4 791 160 220 75 DN80 2500× 1700× 1850 3500
DC-250A/W 32.5 1147.8 31.2 1101.8 28.0 988.8 25.8 911 185 250 77 DN80 2500× 1700× 1850 3800
DC-270A/W 34.5 1218.4 34.0 1200.7 30.5 1077 28 988.8 200 270 76 DN80 2500× 1700× 1850 4200
DC-300A/W 36.8 1299.6 34.7 1225.4 31.5 1112.4 29.5 1041.8 220 300 80 DN100 2800× 1900× 1950 4800
DC-350A/W 43.0 1518.5 41.5 1465.6 38.0 1342 34.9 1232.5 250 350 78 DN100 2800× 1900× 1950 5200
DC-375A/W 51.35 1813.4 50.59 1786.6 46.06 1626.6 41.51 1466 280 375 82 DN125 4200× 2200× 2240 7600
DC-400A/W 56.79 2005.5 55.95 1975.9 50.08 1768.6 45.62 1611 315 400 82 DN125 4200× 2200× 2240 7600
DC-450A/W 66.08 2333.6 65.43 2310.6 55.12 1946.5 49.58 1750.9 355 450 83 DN125 4200× 2200× 2240 8200
DC-500A/W 75.05 2473.8 74.31 2624.2 64.46 2276.4 58.07 2050.7 400 500 83 DN125 4200× 2200× 2240 8200

Certificate

Case Project 

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.

 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.

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.

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.

FAQ

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: Vertical
Structure Type: Closed Type
Installation Type: Stationary Type
Customization:
Available

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air compressor

How does variable speed drive technology improve air compressor efficiency?

Variable Speed Drive (VSD) technology improves air compressor efficiency by allowing the compressor to adjust its motor speed to match the compressed air demand. This technology offers several benefits that contribute to energy savings and enhanced overall system efficiency. Here’s how VSD technology improves air compressor efficiency:

1. Matching Air Demand:

Air compressors equipped with VSD technology can vary the motor speed to precisely match the required compressed air output. Traditional fixed-speed compressors operate at a constant speed regardless of the actual demand, leading to energy wastage during periods of lower air demand. VSD compressors, on the other hand, ramp up or down the motor speed to deliver the necessary amount of compressed air, ensuring optimal energy utilization.

2. Reduced Unloaded Running Time:

Fixed-speed compressors often run unloaded during periods of low demand, where they continue to consume energy without producing compressed air. VSD technology eliminates or significantly reduces this unloaded running time by adjusting the motor speed to closely follow the air demand. As a result, VSD compressors minimize energy wastage during idle periods, leading to improved efficiency.

3. Soft Starting:

Traditional fixed-speed compressors experience high inrush currents during startup, which can strain the electrical system and cause voltage dips. VSD compressors utilize soft starting capabilities, gradually ramping up the motor speed instead of instantly reaching full speed. This soft starting feature reduces mechanical and electrical stress, ensuring a smooth and controlled startup, and minimizing energy spikes.

4. Energy Savings at Partial Load:

In many applications, compressed air demand varies throughout the day or during different production cycles. VSD compressors excel in such scenarios by operating at lower speeds during periods of lower demand. Since power consumption is proportional to motor speed, running the compressor at reduced speeds significantly reduces energy consumption compared to fixed-speed compressors that operate at a constant speed regardless of the demand.

5. Elimination of On/Off Cycling:

Fixed-speed compressors often use on/off cycling to adjust the compressed air output. This cycling can result in frequent starts and stops, which consume more energy and cause mechanical wear. VSD compressors eliminate the need for on/off cycling by continuously adjusting the motor speed to meet the demand. By operating at a consistent speed within the required range, VSD compressors minimize energy losses associated with frequent cycling.

6. Enhanced System Control:

VSD compressors offer advanced control capabilities, allowing for precise monitoring and adjustment of the compressed air system. These systems can integrate with sensors and control algorithms to maintain optimal system pressure, minimize pressure fluctuations, and prevent excessive energy consumption. The ability to fine-tune the compressor’s output based on real-time demand contributes to improved overall system efficiency.

By utilizing variable speed drive technology, air compressors can achieve significant energy savings, reduce operational costs, and enhance their environmental sustainability by minimizing energy wastage and optimizing efficiency.

air compressor

How do you choose the right air compressor for woodworking?

Choosing the right air compressor for woodworking is essential to ensure efficient and effective operation of pneumatic tools and equipment. Here are some factors to consider when selecting an air compressor for woodworking:

1. Required Air Volume (CFM):

Determine the required air volume or cubic feet per minute (CFM) for your woodworking tools and equipment. Different tools have varying CFM requirements, so it is crucial to choose an air compressor that can deliver the required CFM to power your tools effectively. Make sure to consider the highest CFM requirement among the tools you’ll be using simultaneously.

2. Tank Size:

Consider the tank size of the air compressor. A larger tank allows for more stored air, which can be beneficial when using tools that require short bursts of high air volume. It helps maintain a consistent air supply and reduces the frequency of the compressor cycling on and off. However, if you have tools with continuous high CFM demands, a larger tank may not be as critical.

3. Maximum Pressure (PSI):

Check the maximum pressure (PSI) rating of the air compressor. Woodworking tools typically operate within a specific PSI range, so ensure that the compressor can provide the required pressure. It is advisable to choose an air compressor with a higher maximum PSI rating to accommodate any future tool upgrades or changes in your woodworking needs.

4. Noise Level:

Consider the noise level of the air compressor, especially if you’ll be using it in a residential or shared workspace. Some air compressors have noise-reducing features or are designed to operate quietly, making them more suitable for woodworking environments where noise control is important.

5. Portability:

Assess the portability requirements of your woodworking projects. If you need to move the air compressor frequently or work in different locations, a portable and lightweight compressor may be preferable. However, if the compressor will remain stationary in a workshop, a larger, stationary model might be more suitable.

6. Power Source:

Determine the power source available in your woodworking workspace. Air compressors can be powered by electricity or gasoline engines. If electricity is readily available, an electric compressor may be more convenient and cost-effective. Gasoline-powered compressors offer greater flexibility for remote or outdoor woodworking projects where electricity may not be accessible.

7. Quality and Reliability:

Choose an air compressor from a reputable manufacturer known for producing reliable and high-quality equipment. Read customer reviews and consider the warranty and after-sales support offered by the manufacturer to ensure long-term satisfaction and reliability.

8. Budget:

Consider your budget and balance it with the features and specifications required for your woodworking needs. While it’s important to invest in a reliable and suitable air compressor, there are options available at various price points to accommodate different budgets.

By considering these factors and evaluating your specific woodworking requirements, you can choose an air compressor that meets the demands of your tools, provides efficient performance, and enhances your woodworking experience.

air compressor

What is the difference between a piston and rotary screw compressor?

Piston compressors and rotary screw compressors are two common types of air compressors with distinct differences in their design and operation. Here’s a detailed explanation of the differences between these two compressor types:

1. Operating Principle:

  • Piston Compressors: Piston compressors, also known as reciprocating compressors, use one or more pistons driven by a crankshaft to compress air. The piston moves up and down within a cylinder, creating a vacuum during the intake stroke and compressing the air during the compression stroke.
  • Rotary Screw Compressors: Rotary screw compressors utilize two intermeshing screws (rotors) to compress air. As the male and female screws rotate, the air is trapped between them and gradually compressed as it moves along the screw threads.

2. Compression Method:

  • Piston Compressors: Piston compressors achieve compression through a positive displacement process. The air is drawn into the cylinder and compressed as the piston moves back and forth. The compression is intermittent, occurring in discrete cycles.
  • Rotary Screw Compressors: Rotary screw compressors also employ a positive displacement method. The compression is continuous as the rotating screws create a continuous flow of air and compress it gradually as it moves along the screw threads.

3. Efficiency:

  • Piston Compressors: Piston compressors are known for their high efficiency at lower flow rates and higher pressures. They are well-suited for applications that require intermittent or variable air demand.
  • Rotary Screw Compressors: Rotary screw compressors are highly efficient for continuous operation and are designed to handle higher flow rates. They are often used in applications with a constant or steady air demand.

4. Noise Level:

  • Piston Compressors: Piston compressors tend to generate more noise during operation due to the reciprocating motion of the pistons and valves.
  • Rotary Screw Compressors: Rotary screw compressors are generally quieter in operation compared to piston compressors. The smooth rotation of the screws contributes to reduced noise levels.

5. Maintenance:

  • Piston Compressors: Piston compressors typically require more frequent maintenance due to the higher number of moving parts, such as pistons, valves, and rings.
  • Rotary Screw Compressors: Rotary screw compressors have fewer moving parts, resulting in lower maintenance requirements. They often have longer service intervals and can operate continuously for extended periods without significant maintenance.

6. Size and Portability:

  • Piston Compressors: Piston compressors are available in both smaller portable models and larger stationary units. Portable piston compressors are commonly used in construction, automotive, and DIY applications.
  • Rotary Screw Compressors: Rotary screw compressors are typically larger and more suitable for stationary installations in industrial and commercial settings. They are less commonly used in portable applications.

These are some of the key differences between piston compressors and rotary screw compressors. The choice between the two depends on factors such as required flow rate, pressure, duty cycle, efficiency, noise level, maintenance needs, and specific application requirements.

China supplier Direct Driven Screw Air Compressor 125HP   with high qualityChina supplier Direct Driven Screw Air Compressor 125HP   with high quality
editor by CX 2023-10-10

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