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Product Description
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 SKF bearings)
Control: PLC
Driven: direct coupling
Cooling: by air
EPT 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.
Technical Parameters
| Model | Power | Max. | Capacity | Cooling | Driven | Starting | N.G.(Kg) | Air | Measure (mm) | Weght |
| (kw/hp) | Pressure | (m3/min) | Method | System | Outlet | kg | ||||
| DM-10A | 7.5/10 | 8 bar | 1.2 | Oil | Direct | Frequency | 190 | G3/4″ | 895*590*970 | 190 |
| DM-20A | 15/20 | 7bar | 2.4 | 236 | G3/4″ | 1062*690*1000 | 236 | |||
| 8 bar | 4102.3 | |||||||||
| 10 bar | 2.2 | |||||||||
| DM-30A | 22/30 | 7bar | 4.1 | 370 | G1″ | 1330*830*1265 | 410 | |||
| 8 bar | 3.6 | |||||||||
| 10 bar | 3.2 | |||||||||
| DM-40A | 30/40 | 7bar | 5.7 | 450 | G1″ | 1330*830*1265 | 520 | |||
| 8 bar | 5.2 | |||||||||
| 10 bar | / | |||||||||
| DM-50A | 37/50 | 6 bar | 7.35 | 655 | G1 1/2″ | 1500*940*1415 | 655 | |||
| 7 bar | 6.9 | |||||||||
| 8 bar | 6.5 | |||||||||
| 10 bar | 5.6 | |||||||||
| 13 bar | 4.9 | |||||||||
| DM-60A | 45/60 | 6 bar | 8.7 | 730 | G1 1/2″ | 1500*940*1415 | 730 | |||
| 7 bar | 8.1 | |||||||||
| 8 bar | 7.5 | |||||||||
| 10 bar | 67.5 | |||||||||
| 13bar | 5.9 | |||||||||
| DM-75A | 55/75 | 6 bar | 11.2 | 1050 | G2″ | 1600*1060*1470 | 950 | |||
| 7 bar | 10.3 | |||||||||
| 8 bar | 9.5 | |||||||||
| 13 bar | 7.8 | |||||||||
| DM-100A | 75/100 | 6 bar | 13.6 | Air | 1291 | G2″ | 2000*1120*1590 | 1070 | ||
| 7 bar | 13 | |||||||||
| 8 bar | 12.8 | |||||||||
| 10 bar | 11 | |||||||||
| 13 bar | 9.5 | |||||||||
| DM-125A | 90/125 | 6 bar | 17.2 | 1421 | G2″ | 2000*1120*1590 | 1221 | |||
| 7 bar | 16.7 | |||||||||
| 8 bar | 15.5 | |||||||||
| 10 bar | 14 | |||||||||
| 13 bar | 12.5 | |||||||||
| DM-150A | 110/150 | 6 bar | 21.5 | 1970 | DN65 | 2400*1630*1980 | 1950 | |||
| 7 bar | 20.8 | |||||||||
| 8 bar | 19.6 | |||||||||
| 10 bar | 17.8 | |||||||||
| 13 bar | 15.5 | |||||||||
| DM-175A | 132/175 | 6 bar | 24.6 | 2120 | DN65 | 2400*1630*1980 | 2150 | |||
| 7 bar | 24.1 | |||||||||
| 8 bar | 23.2 | |||||||||
| 10 bar | 19.5 | |||||||||
| 13 bar | 17 | |||||||||
| DM-220A | 160/220 | 6 bar | 30.2 | 2650 | DN80 | 2600*1700*1980 | 3620 | |||
| 7 bar | 28.8 | |||||||||
| 8 bar | 27.8 | |||||||||
| 10 bar | 23 | |||||||||
| 13 bar | 20 | |||||||||
| DM-250A | 185/250 | 6 bar | 34.9 | 2850 | DN80 | 2600*1700*1980 | 3920 | |||
| 7 bar | 33.2 | |||||||||
| 8 bar | 31.2 | |||||||||
| 10 bar | 27.5 | |||||||||
| 13 bar | 25.8 |
01 Features Of permanent Magnet Variable Frequency Air Compressor
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 screw compressor technology.
1.Ultra-low temperature rise design, which allows the compressor running at ultra-low frequency for a long time.
2.Closed-loop vector control system for faster control and more precise speed control.
3.The compressor unit can still operate efficiently when the frequency is reduced by more than 50%.
4.The pressure is stable and the pressure fluctuation is accurately controlled within 0.1 bar.
5.The figure shows a comparison of several starting methods. It can be seen that the frequency converter is slowly accelerated to start, the starting is more stable, and the current peak is completely avoided.
02 Air End
More stable, no mechanical transmission failure: high-efficiency permanent magnet synchronous motor and screw male rotor adopt embedded-integrated shaft direct connection structure, no gear transmission, completely eliminate gear pitting or broken teeth; Two independent permanent magnet motors are integrated directly drive two air ends, no coupling failures.
More energy efficient, the air end is always running at energy-saving speed.
More efficient and efficient permanent magnet motor + no transmission efficiency loss.
More comfortable, low running noise, eliminating three sources of noise: no-click bearing noise, no gear meshing noise, no coupling drive noise.
More compact: The permanent magnet motor is small in size and the integrated structure saves space.
Under the set frequency conversion pressure, the unit will automatically adjust to keep the output pressure within ± 0.1 bar, reducing unnecessary waste (the power consumption increases by 7% for every 1 bar of pressure increase)
0.3 Advantages of Permanent Magnet Motors Compared to General Asynchronous Motors
High efficiency: Eliminates excitation system losses and improves efficiency.
It is still efficient under low load conditions: the energy efficiency of a permanent magnet motor is more than 9% higher than that of a conventional asynchronous motor at full load operation, and its energy efficiency remains unchanged as the speed decreases.
Large overdrive torque: The ratio of the maximum starting torque of the permanent magnet synchronous motor to the rated torque can be more than 3 times, while the general asynchronous motor is only 1.6 times.
The control is more stable: the corresponding time of the permanent magnet motor is <50ms, and the gas production can be adjusted in a large range in an instant, so that the gas pressure is truly stable.
Certificate
Project case
Customer feedback
Company Profile
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 Dehaha improved rapidly to reach the business principle “Energy Saving First, Mutual Value Shared”. The production line of DEHAHA 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.
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 Qi EPT City, ZheJiang Province, China. We can pick up you from ZheJiang , it’s about 1 hour from ZheJiang Pu EPT 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 two 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) Worldwide agents and after service available.
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The use of original equipment manufacturer’s (OEM) part numbers or trademarks , e.g. CASE® and John Deere® are for reference purposes only and for indicating product use and compatibility. Our company and the listed EPT parts contained herein are not sponsored, approved, or manufactured by the OEM.
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