China Professional 7-13bar Industrial ABB Variable Frequency Saving 30% Electric Rotary Screw Air Compressor air compressor CZPT freight

Product Description

Product Description

Variable Speed Screw Air Compressor

DC frequency screw air compressor 20HP, 8kg
1. Reliable quality, competitive price
2. German Air end, 10 years manufacture experience
3. Perfect service network
4. Easy to install, operate, maintent.
5. Low noise, Low engergy consumption, Low runing, Low maintenance cost.
6. Aptitude and intelligent Control, PLC control, LCD displayer.

Model: DM-20A

Free air delivery: 2.3m3/min

Working pressure: 8 bar

Screw air end rotor lobe: 5:6

Brand of screw air end: Hanbell ZheJiang  AB+ series( 6 pcs CZPT bearings)

Control: PLC

Driven: direct coupling

Cooling: by air

Electric motor: Permanent Magnet type 20hp 15KW 230V/60hz/3ph, protection level IP65, oil cooling

Discharge temperature: less than ambient +8 ºC

Noise: less than 65 dB(A)

Air outlet size: G3/4″

Dimension: 1062*690*1000mm

Weight: 236kg

Warranty: 24 months for the screw air end,12 months for the whole set compressor except air filter,oil filter and oil/air separator.

 

Model Air Delivery (m3/min) Power (kW) Noise (Db) Outlet diameter Dimension (mm) Weight (Kg)
0.7Mpa 0.8Mpa 1.0Mpa 1.3Mpa Length Width Height
DM-10A 1.3 1.2 1.0 / 7.5 63 G3/4 895 590 970 190
DM-20A 2.4 2.3 2.0 1.7 15 65 G3/4 1062 690 1000 236
DM-30A 4.15 3.7 3.2 2.8 22 68 G1 1330 830 1265 410
DM-40A 5.7 5.2 / / 30 68 G1 1330 830 1265 520
DM-50A 6.9 6.5 5.6 4.9 37 69 G1 1/2 1500 940 1415 655
DM-60A 8.1 7.5 6.75 5.9 45 70 G1 1/2 1500 940 1415 730
DM-75A 10.3 9.5 8.3 7.8 55 70 G2 1600 1060 1470 950
DM-100A 13 12.8 11.0 9.5 75 72 G2 2000 1120 1590 1070
DM-125A 16.7 15.5 14.0 12.5 90 72 G2 2000 1120 1590 1221
DM-150A 20.8 19.6 17.8 15.5 110 72 DN65 2400 1630 1980 1950
DM-175A 24.1 23.2 19.5 17.0 132 72 DN65 2400 1630 1980 2150
DM-220A 28.8 27.8 23.0 20.0 160 72 DN80 2800 1828 2150 3620
DM-250A 33.2 31.2 27.5 25.8 185 72 DN80 2800 1828 2150 3920
DM-350A 43.0 41.5 38.0 34.9 250 76 DN100 4260 2182 2170 5200

  

1.DHH Permanent Magnet VSD Screw Compressor Energy-saving technology makes it an indispensable part in your factory.

Features

Motor Power:7.5~55(Kw) 
Air Delivery: 0.7~10.3(m3/min)  
Working Pressure:7.0~13.0(Bar)
Cooling Method: Oil cooling
Motor protection class: IP65 
High-efficiency, One-piece structure

 

2.DHH Permanent Magnet VSD Screw Compressor Energy-saving technology makes it an indispensable part in your factory.

Features

Motor Power:75~185(Kw) 
Air Delivery:13~33.2(m3/min)
Working Pressure:7.0~13.0(Bar)
Cooling Method: Ail cooling
Motor protection class: IP54
High-efficiency, Significant Energy saving

Application industry

Application Industry

Air compressors belong to the general equipment category and are widely used in steel, electric power, metallurgy, shipbuilding, textiles, electronics, chemicals, petroleum, mining, light industry, machinery manufacturing, paper printing, transportation facilities, food and medicine, casting and spraying, shipping terminals, Military technology, automotive technology, automotive industry, aerospace, infrastructure and other fields.

 

Company Profile

About us

Dehaha Compressor 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 CZPT improved rapidly to reach the business principle”Energy Saving First, Mutual Value Shared”. CZPT 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 exhibition

Exhibition

  

Why choose us

Why Choose Us?

1.Quality Guarantee
With more than 24 years industry experience and our compressor approved by CE, ISO9001, SGS, And TUV test.The raw materials are strictly inspected and Some key parts are imported from overseas.Each compressor must pass at least 5 hours of continuous testing before leaving the factory.

2.Warranty Period
The complete machines are proviede with one-year warranty, and the compressor air end with Two-year warranty and lifetime maintenance(With the exception of wearing parts)

3. Installation and Commissioning
Provied customers with installation and commissioning instructions,and all service-providing personnel are strictly trained technically by our company.

4.After -sales Services
Our company has service network in world, giving prompt replies to customers after notified within 24~48hours for troubleshooting.

5.Spare Parts
Our company always supply spare parts on most favorable terms.

 

FAQ

FAQ

1.Why customer choose us? 
DHH CZPT ZheJiang CO.,LTD.with 23 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) CZPT agents and after service available.

Shipping Cost:

Estimated freight per unit.



To be negotiated
After-sales Service: Online Support
Warranty: 24months
Lubrication Style: Lubricated
Customization:
Available

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air-compressor

How to Repair and Maintain an Air Compressor

A compressor is a device used to move air from one place to another. Air enters the air compressor through the intake valve. Inside the compressor, the vanes on the inner rotor rotate within an eccentric cavity. The self-adjusting length arm divides the space into multiple cavities of different sizes. As the rotor rotates, air fills the cavity. As air flows around the cavity, it builds pressure and is squeezed out of the compressor output.

Positive displacement

Positive displacement air compressors use reciprocating pistons to compress air. Gas is drawn in during the suction stroke and compressed by moving the piston in the opposite direction. It then discharges the compressed air by moving it in the opposite direction. This type of air compressor is most commonly found in automobiles, refrigerators, and other applications that require high pressure. However, it is not as efficient as a centrifugal compressor.
Most modern air compressors use positive displacement. Positive displacement models capture a volume of air in the compression chamber and distribute it when the pump is operating at maximum capacity. They are more economical than their negative displacement counterparts. Reciprocating screw air compressors are the most common positive displacement compressors. The reciprocating screw air compressor adopts a water jacket around the cylinder and is often used in processes such as oil drilling.
A bicycle pump is an example of positive displacement compression. Air is drawn into the cylinder and compressed by the moving piston. A piston compressor works on the same principle, but it uses a rotating crankshaft or connecting rod to complete the movement of the pistons. There are two types of positive displacement compressors: single-acting and double-acting. Both types work on the same principle, both are positive displacement compressors. The difference between the two types is the pressure ratio.
In air compression, positive displacement compression reduces the volume of the fluid and reduces its viscosity. This results in higher pressure ratios and is used in centrifugal, axial, and scroll compressors. Positive displacement is a common feature of most air compressors. Positive displacement compressors offer the same benefits and are more energy-efficient when applied to oil-free and gas applications. This type of compression is usually the best choice for low-pressure applications.

oil free

If you’re looking for an air compressor for your business, consider an oil-free air compressor. These models offer cleaner, quieter operation than traditional air compressors and require less maintenance. They also meet ISO Class 0 or Class 1 air purity requirements. Oil-free air compressors are also quieter, with fewer moving parts and less noise. These advantages make oil-free air compressors an ideal solution for many commercial applications.
Air purity is critical in many industries. Even the tiniest drop of oil can damage production equipment or damage products. The best way to find an oil-free air compressor for your business is to consider the process and end product. As air quality improves, more and more businesses are turning to oil-free compressors. Some of the advantages and disadvantages of these air compressors are:
When choosing an oil-free air compressor, it is important to understand the terminology used in the industry. Knowing these terms will make it easier for you to choose the right compressor for your needs. ACTFM, or actual cubic feet per minute, is an industry term for measuring the amount of air pumped in one minute under rated conditions. Although a simple number, it can be very useful in determining which type of air compressor is best for your application.
The ISO 8573-1 international standard defines air quality and provides air purity classifications. The strictest classification is air purity class 0. Many manufacturers claim that oil-free air compressors meet this standard. However, a class 0 oil-free air compressor does not necessarily mean that the air is free of contaminants. In fact, Class 0 is the benchmark for air purity. While zero air quality is the highest level, that doesn’t mean it’s completely oil-free.
air-compressor

double acting

A double-acting air compressor is a device that uses compressed air to generate electricity. Its working principle is based on piston and connecting rod. The connecting rod connects the crankshaft to the piston through pins and caps. The piston moves as the piston moves. Rods are usually made of forged carbon steel. In terms of service and maintenance, double-acting compressors require regular vise maintenance and proper cleaning.
The displacement of the compressor is a measure of the displacement that the piston can produce in a certain period of time. Displacement is usually expressed in actual cubic feet per minute. The exact calculation depends on the type of cylinder and the configuration of the compressor. Single-acting cylinders can have head-end or crank-end displacement, both of which can be measured using the displacement equation. A double-acting air compressor will use this equation. 4 and 6 calculate the displacement.
Double-acting air compressors have multiple cylinders and are made of cast iron. They are water-cooled and have a mechanical connection between the piston and connecting rod. A double-acting compressor compresses air twice per revolution of the motor. One cylinder moves up, while the other cylinder moves down. The piston moves down, allowing air to enter through valve #1. During the operation of the compressor, the temperature of the air and gas increases.
Double-acting air compressors typically have high pressure and are considered workhorses. Double-acting compressors also feature intercooling and double compression. As a result, these machines tend to last longer than single-acting compressors. Its low speed and dual compression make it a workhorse in the compressor industry. Double-acting air compressors are workhorses and versatile devices.
air-compressor

fuel tank pressure switch

You can adjust the pressure in the air compressor tank by adjusting the differential pressure. You can turn the mainspring clockwise or counterclockwise to increase or decrease the pressure. This valve will open when the pressure is low enough to start the compressor. If the pressure is too low, the valve should be closed. The cut-in and cut-out pressures should be set to appropriate values. After adjusting the tank pressure, check the hysteresis of the tank pressure switch and set the desired shutoff pressure.
If the pressure in the tank falls below the cut-in level, the tank pressure switch must be replaced. You can test the switch with a multimeter. Make sure the switch is not damaged. If you can’t find the switch, you can look at the other sections. If you find any damaged or missing parts, you should replace them. Otherwise, it may be time to check the tank pressure switch. You may need to disassemble the compressor and remove the switch.
The fuel tank pressure switch is an important part of the air compressor. It keeps you informed of the amount of air delivered by the compressor. If your tank or tank is damaged, your readings will be wrong. If the pressure switch is damaged, it will not function properly and result in incorrect readings. Fortunately, there are some easy ways to fix this. To prevent this from happening, keep the tank pressure switch in good condition.
When the air pressure in the tank drops to the cut-in pressure setting, the switch allows power to flow through it. This will start the motor and pump of the air compressor. Then, if the pressure in the tank rises above the cut-off level, the switch will trip and stop the compressor. This will prevent it from being over-pressurized. Power flow will continue to flow to the motor. Depending on your compressor model, you can change the cut-in and cut-out pressures as needed.

energy source

The power supply of the air compressor is very important. Most air compressors run on 12 VDC, which is ideal for automotive use. Alternatively, you can buy a switching power supply for around $20. No matter which power supply you choose, you must ensure that it can support the maximum current of the compressor. You can find power supplies in all sizes, from quarter-horsepower to five-horsepower.
The voltage required for a three-phase air compressor will vary. Three-phase air compressors require three separate power cords and a three-phase electrical service panel. This is because a standard 120/240-volt electrical service panel is not sufficient to power a three-phase compressor. Additionally, three-phase compressors require three separate isolated wires for the engine and motor circuits. Three-phase compressors do not require a neutral wire.

China Professional 7-13bar Industrial ABB Variable Frequency Saving 30% Electric Rotary Screw Air Compressor   air compressor CZPT freightChina Professional 7-13bar Industrial ABB Variable Frequency Saving 30% Electric Rotary Screw Air Compressor   air compressor CZPT freight
editor by CX 2023-05-31

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